Answer:
the length of the female dolphin would be 9 ft 3 in
Answer:
15 ft and 6 inches
Step-by-step explanation:
Every foot is 12 inches, and 12 times 15 gets you the closest to 181 without going over 181. 12 times 15 is 180 so all you need is one inch to get to 181.
Write two expressions (with at least two terms each) that when added together have a sum of -4 n + 6.
100 POINTS AND BRAINLIEST
Answer:
8n-4n +(6x2)-6-8n
24n+8 - 20n -(2n x 4n)-2
Step-by-step explanation:
#1
Take -8n+5 and 4n+1
-8n+5+4n+1-4n+6#2
Take -2n+4 and -2n+2
-2n+4-2n+2-4n+6Vector v is shown in the graph.
vector v with initial point at 0 comma 0 and terminal point at negative 8 comma 6
Which are the component form and magnitude of v?
v = ❬–8, 6❭; ||v|| = –10
v = ❬8, 6❭; ||v|| = –10
v = ❬8, 6❭; ||v|| = 10
v = ❬–8, 6❭; ||v|| = 10
Question 5
Vector v is shown in the graph.
vector v with initial point at 2 comma 5 and terminal point at negative 3 comma negative 2
Which are the magnitude and direction of v? Round the answers to the thousandths place.
||v|| = 8.602; θ = 54.462°
||v|| = 8.602; θ = 234.462°
||v|| = 9.220; θ = 54.462°
||v|| = 9.220; θ = 234.462°
Question 4
Answer: Choice DExplanation:
If the initial point is the origin, the coordinates of the terminal point form the vector itself in component form. We go from (-8,6) to <-8,6>. The notation change is from ordered pair to vector format.
We have a right triangle with legs of 8 and 6 units. The pythagorean theorem will help us determine the hypotenuse is 10. Therefore, the vector length is 10 units and we would say ||v|| = 10. We have a 6-8-10 right triangle.
===========================================================
Question 5
Answer: Choice BExplanation:
Vector v starts at (2,5) and ends at (-3,-2).
The x component of the vector is x2-x1 = -3-2 = -5 meaning we move 5 units to the left when going from the start point to the endpoint.
At the same time we move 7 units down because y2-y1 = -2-5 = -7 which is the y component of the vector.
The component form of vector v is
v = <-5, -7>
it says "move 5 units left, 7 units down".
Apply the pythagorean theorem to find the length of the vector.
a^2+b^2 = c^2
c = sqrt(a^2 + b^2)
||v|| = sqrt( (-5)^2 + (-7)^2 )
||v|| = 8.602 which is approximate.
Now let's use the arctangent function to find the angle
theta = arctan(b/a)
theta = arctan(-7/(-5))
theta = 54.462 which is also approximate.
There's a problem however. This angle is in Q1 but the vector <-5,-7> is in Q3. An easy fix is to add on 180 to rotate to the proper quadrant.
54.462+180 = 234.462
which is the proper approximate angle for theta.
Pls Help As Quick As Possible
Answer:
2.129
Step-by-step explanation:
So, 3.157 - ______ = 1.028
Add the blank to the other side:
3.157 = 1.028 + ______
Now subtract the 1.028
3.157 - 1.028 = ______
3.157 - 1.028 = 2.129
Nice handwriting, if that's yours.
Answer:
2.129
Step-by-step explanation:
Plss Help me on this!!
#1
[tex]\\ \rm\rightarrowtail x+1=9[/tex]
[tex]\\ \rm\rightarrowtail x=9-1[/tex]
[tex]\\ \rm\rightarrowtail x=8[/tex]
#2
Put x=8[tex]\\ \rm\rightarrowtail 8+1=9[/tex]
Hence verified
[tex]x + 1 = 9[/tex]
[tex]x = 9 - 1[/tex]
[tex]x = 8[/tex]
Show that your solution is correct through checking.Put x = 8[tex]8 + 1 = 9[/tex]
[tex]9 = 9[/tex]
Hence, Verified!
37 times 9 then add 555 then divided by 9, ok
37 * 9 = 333
333 + 555 = 888
888/9 = 98.666666666666666666666666666667
Hope that helps!
Answer:
98.67
Step-by-step explanation:
Step 1 :
37 x 9 = 333
Step 2 :
333 + 555 = 888
Step 3 :
888 / 9 = 98.67
A number, p, varies directly as q and partly inversely as q[tex]{}^{2} [/tex]. Given that p = 11 and q = 7 and p = 25.16 when q = 5, calculate the value of p when q = 7
Since it varies directly as q and partly inversely as q^2 it is represented has this below
p = aq + b/q^2
The constants of proportionality here are a and b
11 = 2a + b/4 ----- i x 5
25.16 = 5a + b/25 ------ ii x 2
Multiply equation i by 5 and equation ii by 2
55 = 10a + 5b/4 ----- iii
50.32 = 10a + 2b/25 ----- iv
Subtract equation iv from equation iii
b = 4
Put the value of b in equation iv
50.32 = 10a + 8/25
Multiply through by 25
1258 = 250a + 8
a = 5
p =5q + 4/q^2
Therefore using this equation put into the equation the value of q which is 7
p = 5(7) + 4/(7)^2
p = 35 +4/49
p = 35.082
hope this helped.
What is distance between point X and point Y?
O 11
O 22
O 61
O 72
(the answer is 61)
Answer:
61
Step-by-step explanation:
Alexander uses cupric chloride to etch circuit boards. He recorded the room temperature, in ^\circ\text{C} ∘ Cdegrees, start text, C, end text, and the etching rate, in \dfrac{\mu\text{m}}{\text{min}} min μm start fraction, mu, start text, m, end text, divided by, start text, m, i, n, end text, end fraction, of the cupric chloride. After plotting his results, Alexander noticed that the relationship between the two variables was fairly linear, so he used the data to calculate the following least squares regression equation for predicting the etching rate from the room temperature: \hat y = 2 +\dfrac{1}{5} x y ^ =2+ 5 1 xy, with, hat, on top, equals, 2, plus, start fraction, 1, divided by, 5, end fraction, x What is the residual if the room temperature was 25^\circ\text{C}25 ∘ C25, degrees, start text, C, end text and the cupric chloride had an etching rate of 5\dfrac{\mu\text{m}}{\text{min}}5 min μm 5, start fraction, mu, start text, m, end text, divided by, start text, m, i, n, end text, end fraction ?
The residual is the difference between the observed etching rate and the predicted etching rate
The residual of a room temperature of 25 degrees Celsius is [tex]- 2\dfrac{\mu\text{m}}{\text{min}}[/tex]
How to determine the residualThe least squares regression equation for predicting the etching rate from the room temperature is given as:
[tex]\hat y = 2 +\dfrac{1}{5} x[/tex]
When the room temperature is 25 degrees Celsius, the regression equation becomes
[tex]\hat y = 2 +\dfrac{1}{5} *25[/tex]
Evaluate the product
[tex]\hat y = 2 +5[/tex]
Evaluate the sum
[tex]\hat y = 7[/tex] --- this represents the predicted etching rate
The residual is calculated as:
Residual = Observed - Predicted
From the question, the observed etching rate is [tex]5\dfrac{\mu\text{m}}{\text{min}}[/tex]
So, the residual equation becomes
[tex]r = 5\dfrac{\mu\text{m}}{\text{min}} - 7\dfrac{\mu\text{m}}{\text{min}}[/tex]
Evaluate the difference
[tex]r = - 2\dfrac{\mu\text{m}}{\text{min}}[/tex]
Hence, the residual of a room temperature of 25 degrees Celsius is [tex]- 2\dfrac{\mu\text{m}}{\text{min}}[/tex]
Read more about residuals at:
https://brainly.com/question/2732316
Explain how the distributive property and the commutative property of addition
are used in the Example to show that 2(x + 1) + 2x is equivalent to 4x + 2.
Answer:
2 times a number, plus 1, plus 2 times a number, is equal to 4x + 2.
The way they factored ↓
2 x 2 = 4
4x = 4 times a number or itself multiple times
4 + 2 is the same as a number times 1 equals 2.
If that's the case, x = 2.
Hope this helps!If so, give thanks!I need help on this question for math
Answer:
y = -12
Step-by-step explanation:
any equation with only an x or y value present will either be a vertical or horizontal line. Because the y axis is vertical, a line that is present on y=-12 will sit on y=-12 forever, and therefore be a horizontal line
Answer:
[tex]\displaystyle y = -12[/tex]
Step-by-step explanation:
If any quantity is set equivalent to y, then it is a horisontal line. In other wourds, it is considered a zero rate of change [slope].
I am joyous to assist you at any time.
a text book store sold a combined total of 411 psychology and math textbooks in a week. the number of math textbooks sold was 63 less than the number of psychology textbooks sold. how many textbooks of each typer were sold
what will happen to the measures central tendacy is the outliner is removed 4,5,5,6,7,8,17
When the central tendency is the outliner is removed , the mean will increase.
How does outliers affect the central tendency?Outliers are often used to measure central tendency and dispersion. They can give wrong impressions of a data set when a the set has more than one or one outliers.
An outlier is known to be the value that is said to be greater than or say less than most of the other values found in a data set.
see options below
A.They will not change.
B.The mode will change.
C.The mean will decrease.
D.The mean will increase.
Learn more about central tendency from
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Describe the slope of the line
Find the slope
Question in the image
Step-by-step explanation:
MN and JK are parallel lines. So those two angles are going to be corresponding angles which means their measurements are the same
4x+56 = 7x +53
3=3x
x=1
LKJ = 4(1)+56= 60
if 3 cubic centimeters fill the botton layer of a box and the box fits 6 layers what is the volume of the box
Total layers=6
Total volume:-
6(3)18cm^3What is 4/5+2/7? Please help!
Answer:
24/35
Step-by-step explanation:
Please help math questions
put number with answers please
Answer:
See below for answers
Step-by-step explanation:
Problem 1
[tex]\frac{1}{sin\theta}=2cos\theta\: ; \: 0\leq\theta < 2\pi\\\\1=2sin\theta cos\theta\\\\1=sin2\theta\\\\\frac{\pi}{2}+2\pi n=2\theta\\ \\\frac{\pi}{4}+\pi n=\theta\\ \\\theta=\bigr\{\frac{\pi}{4},\frac{3\pi}{4},\frac{5\pi}{4},\frac{7\pi}{4}\bigr\}[/tex]
Therefore, the second option is correct.
Problem 2
[tex]cos(2x)+1=sin(x)+2\:;\: 0\leq x < 2\pi\\\\1-2sin^2x+1=sin(x)+2\\\\-2sin^2x=sin(x)\\\\0=2sin^2x+sinx\\\\0=sinx(2sinx+1)[/tex]
[tex]0=sinx\\\\x=\pi n\\\\x=0,\pi[/tex]
[tex]0=2sinx+1\\\\-1=2sinx\\\\-\frac{1}{2}=sinx\\ \\x=\frac{7\pi}{6}+2\pi n,\frac{11\pi}{6}+2\pi n\\\\x=\frac{7\pi}{6},\frac{11\pi}{6}[/tex]
Therefore, the solution set is [tex]x=\bigr\{0,\pi,\frac{7\pi}{6},\frac{11\pi}{6}\bigr\}[/tex], making the second option correct.
Problem 3
[tex]2cos^2x=-cosx\: ;\: 0^\circ\leq x < 360^\circ\\\\2cos^2x+cosx=0\\\\cosx(2cosx+1)=0[/tex]
[tex]cosx=0\\\\x=\frac{\pi}{2}+\pi n\\ \\x=90^\circ+180n^\circ\\\\x=90^\circ,270^\circ[/tex]
[tex]2cosx+1=0\\\\2cosx=-1\\\\cosx=-\frac{1}{2}\\\\x=\frac{2\pi}{3}+2\pi n,\frac{4\pi}{3}+2\pi n\\ \\x=120^\circ+360n^\circ,240^\circ+360n^\circ\\\\x=120^\circ,240^\circ[/tex]
Therefore, the solution set is [tex]x=\bigr\{90^\circ,120^\circ,240^\circ,270^\circ\bigr\}[/tex], making the fourth option correct
12) Gia is playing a game of basketball. She has a 25% chance of making a free throw.
During her game she shoots two free throws.
a) What is Gia's probability of making zero free throws?
b) What is Gia’s probability of making one free throw?
c) What is Gia’s probability of making two free throws?
Answer:
A) 3/4
B) 1/4
C) 1/2 / 2/4
Step-by-step explanation:
helpp? show work pls
Answer:
91°
Step-by-step explanation:
We first add 75 and 14 which is equal to 89°. Now, we know that a full triangle angle is 180° . We then calculate 180°-89° which gives us the final answer 91°.
Ps: 91 rounded to the nearest tenth is equal to: 91.0
This year, The Lexington Times had 12,698 subscribers. That is 40% more than they had last year before the paper was bought out. How many subscribers did the paper have last year?
Answer:
They had 7,618.8 subscribers last year.
Let me know if this helped :)
Step-by-step explanation:
We need to find 40% of 12,698
To do that, we need to multiply 12,698 by the decimal form of 40%.
12,698*0.40=5,079.2
Then, we need to subtract 5,079.2 from the amount of subscribers we had this year.
12,698-5,079.2= 7,618.8
Mrs Galicia gave her sisters $3000 each to invest. The investment will last 8 years. The table shows what each sister did with their investment and how it changed over 8 years. Use the chart to answer the following questions please
1. What is the balance of Michelle's $3000 after 8 years?
2. What is the balance of Kristen's $3000 after 8 years?
3. What is the balance of Gabriella's $3000 after 8 years?
4. What is the balance of Judy's $3000 after 8 years?
5. Who has the most money at the end of the 8 years? If i were to choose one of the options to use for my own money, which option should I choose?
Michelle's investment balance after 8 years is $10,790.48.
Kristen's investment balance after 8 years is $3,770.55.
Gabriella's investment balance after 8 years is $24,780.42.
Judy's investment balance after 8 years is $3618.62.
The person with the highest amount of money at the end of the 8 years is Gabriella. If I were to choose one of the investment options, I would choose Gabriella's option.
What are the formulas that can be used to determine the balance of the sisters?The formula that can be used to determine the future value of the investment with compounding is:
FV = P (1 + r)^nm
Where:
FV = Future valueP = Present valueR = interest rate / number of compoundingm = number of compoundingN = number of yearsFuture value with continuous compounding = : A x e^r x N
Where:
A= amounte = 2.7182818N = number of yearsr = interest rateWhat is Michelle's balance after 8 years?Future value with monthly compounding = $2000 x ( 1 + 0.035/12)^(12 x 8) = $2645.18
Future value with continuous compounding: 1000 x e^0.018 x 8 = $8,145.30
Total = $8,145.30 + $2645.18 = $10,790.48
What is Kristen's balance after 8 years?Future value with quarterly compounding = 2500 x (1 + 0.012 / 4)^(4 x 8) = $2,751.50
Future value with quarterly compounding = 500 (1 .0225)^(8x4) = $1019.05
Total = $3,770.55
What is Gabriella's balance after 8 years?$3000 x e^0.032 x 8 = $24,780.42
What is Judy's balance after 8 years?Future value with exponential increase = 1050 x (1.015)^8 = $1,182.82
Future value with biannual compounding = 1950 x (1 + 0.028/2)^(8 x 2) = $2435.80
Total = $3618.62
To learn more about future value, please check: brainly.com/question/18760477
choose the sentence that complete the fact family like 2×9=18 18÷9=2 9×2=18 is it a 36÷2=18 b 18÷6=3 c 36÷18=2 d 18÷2=9 is it abc or d
Answer:
D. 18 ÷ 2 = 9
Step-by-step explanation:
The equation matches the equation 18 ÷ 9 = 2
The other equations do not match the previous equations because the previous three equations didn't have a 36 or the number six
I hope this helps!
Answer:
d 18÷2=9
Step-by-step explanation:
The answer is d because the fact family contains 2,9and18.
2×9=18, 18÷9=2and 9×2=18 are already solved. so all you need to do is to study the question and the answer very well.
To find the answer you need to look at the numbers in the question carefully an look for it in the answer.
what is the value of X?
Answer:
27 is ta value of x because.. first of all add allthose threee sides
3(x+2)+ 35+ 52=180(the sum of triangle)
or, 3x+6+35+52=180
or,3x=180-93
or,x=87/3
Therefore, the value of x is 29
Step-by-step explanation:
mark me as main brainliest please
Select the correct answers in the table.
Rachel enjoys exercising outdoors. Today she walked miles in hours. What is Rachel’s unit walking rate in miles per hour and in hours per mile?
Step-by-step explanation:
she walked 5 2/3 miles in 2 2/3 hours.
so, the unit rate (speed) is 5 2/3 miles / 2 2/3 hours.
for the regular miles/hour speed we need to this back to x miles/ 1 hour.
we start by creating full fractions :
17/3 miles / 8/3 hours = 17/3 × 3/8 miles/hour =
(17×3)/(3×8) = 17/8 = 2 1/8 miles/hour
and for hours/mile we need to flip this upside-down:
8/3 / 17/3 = 8/3 × 3/17 = 8/17 hours/mile
Joaquin makes $900 a week. A raise of $36 a week represents what percent of his salary?
Answer:
4%
Step-by-step explanation:
1% of 900: 9
9 * 4 = 36
Which equation has a solution of n = 4?
A, 6 + n = 24
B, 5n = 54
C, 12 - n = 16
D, 7n = 28
Answer:
D. 7n = 28
Step-by-step explanation:
Let's substitute 4 for n in each equation to check if it the resulting equation is correct:
[tex]6+n=24\\ 6+4=24\\ 10\neq 24\rightarrow \text{Incorrect!}[/tex]
[tex]5n=54\\5(4)=54\\20\neq54\rightarrow\text{Incorrect!}[/tex]
[tex]12-n=16\\12-4=16\\8\neq16\rightarrow\text{Incorrect!}[/tex]
[tex]7n=28\\7(4)=28\\28=28\rightarrow\text{Correct!}[/tex]
Therefore the answer is D
Step-by-step explanation:
7n=28divide both side by 7n=28\7n=4
2) Draw a model that shows 2 items being divided equally for 5 people,
How much will each person have?
Answer:
0.4
Step-by-step explanation:
I can't draw a model, but I will give you an equation!
Two items are going to be divided amongst five people:
2/5=0.4
Each person will get 0.4 OR 4/10 of the two items.
Here's a math problem you could use:
Henry and his 4 friends want to eat some chocolate, but there's only two bars, Henry suggests that they just split it equally. If everyone get's an equal share, how much did each get? Everyone got 0.4 of the two chocolate bars.
Each person will get 0.4 OR 4/10 of the two items.
What’s the answer to this question y’all
Answer:
First choice
Step-by-step explanation:
He must ride 60 - 12 miles during the 6 days
Every day he rides x miles, 6 days, 6x miles
so 60 - 12 = 6x
First choice
If OB' = 5 cm and BB' = 7.5 cm what is the scale factor of the dilation?
Please answer! Will give Brainliest!
The scale factor of the dilation can either be increased or decreased or enlarged or reduced but for the given parameters, the scale factor of the dilation is; 1.5
What is the scale factor?In dilation, the figure or image could be either enlarged or reduced. Now, we are told that OB' = 5cm and it was dilated to BB' which is 7.5 cm.
We can see that the length increased from 5 cm to 7.5cm. Thus, we can find the scale factor of dilation from;
Scale Factor = BB'/OB' = 7.5/5
Scale Factor = 1.5
Read more about scale factor at: https://brainly.com/question/10253650
If g(x)=6/(x-3) find g(5)
Answer:
the answer is 3
Step-by-step explanation:
function notation is the way a function is written.