Answer:
152 miles
Step-by-step explanation:
Ratios:
[tex]\frac{40}{2} =\frac{x}{7.6} \\\\2x=304\\x=152[/tex]
Which set does not contain a rational number?
Answer:
[tex]\sqrt{21}[/tex], π, [tex]\sqrt{75}[/tex]
Step-by-step explanation:
this set contains only irrationals
answer asap ----------------------
Answer:
BC ≈ 15.01
Step-by-step explanation:
Using the tangent ratio in the right triangle
tan65° = [tex]\frac{opposite}{adjacent}[/tex] = [tex]\frac{BC}{AC}[/tex] = [tex]\frac{BC}{7}[/tex] ( multiply both sides by 7 )
7 × tan65° = BC , then
BC ≈ 15.01 ( to the nearest hundredth )
You throw a ball at a height of 5 feet above the ground. The height h (in feet)
of the ball after t seconds can be modeled by the equation h=-16tsqaured +44t +5
A. After how many seconds does the ball reach a height of 15 feet?
B. After how many seconds does the ball hit the ground? Round your answer
to two decimal places.
Answer:
A. After 2.5 sec and .25 sec the ball was at a height of 15 ft.
B. 2.86 sec is the time it takes to hit the ground
Step-by-step explanation:
A. let h = 15
then 15 = -16t^2 + 44t + 5
16t^2 - 44t + 10 =0
2(8t^2 - 22t + 5) = 0
2(2t - 5)(4t - 1) = 0
t = 5/2 = 2.5 or t = 1/4 = .25
After 2.5 sec and .25 sec the ball was at a height of 15 ft.
B. Let h = 0.
-16t^2 + 44t + 5 = 0
Use the quadratic formula to find t. (I will let you do that)
t = 2.85929... or t = -.10929...
t cannot be negative, so 2.86 sec is the time it takes to hit the ground
The answer of A is After 2.5 sec and 0.25 sec the ball was at a height of 15 ft and the answer of B is 2.86 sec is the time it takes to hit the ground.
A. let h = 15
What is the quadratic equation?
[tex]ax^2+bx+c=0[/tex]
a, b, c = known numbers, where a ≠ 0
x = the unknown
then 15 = -16t^2 + 44t + 5
16t^2 - 44t + 10 =0
2(8t^2 - 22t + 5) = 0
2(2t - 5)(4t - 1) = 0
t = 5/2 = 2.5 or t = 1/4 = 0.25
After 2.5 sec and 0.25 sec the ball was at a height of 15 ft.
B. Let h = 0.
-16t^2 + 44t + 5 = 0
Use the quadratic formula to find t.
t = 2.85929... or t = -.10929...
t cannot be negative, So 2.86 sec is the time it takes to hit the ground.
To learn more about the quadratic equation visit:
https://brainly.com/question/1214333
#SPJ2
please help me. Based on the financial record shown below, how much did Ting donate in May?
Help me pls ........................
.............................
GIVING BRAINLIEST TO THE CORRECT ANSWER!!
Marta's dog just had six puppies. Four are female (F), and two are male (M). One of the males is brown. Two of the females are brown. All puppies are either brown or white. If Marta randomly gives away puppies to her friends, what is the probability of a friend getting a puppy that is male, brown, or both?
4. What is the probability that a puppy Marta gives away is male, brown, or both? Explain.
Answer:
male= 1/3 brown =1/2, both 1/6
Step-by-step explanation:
there is 2 males and 6 total, simplified is 1/3. there are 3 browns and 3 whites, so simplified is 1/2 instead of 3/6. There is only one brown male, so you cannot simplify it more than 1/6.
Brainliest PLZ PLZ PLZZZZZ
Answer:
[tex]\frac{2}{3}[/tex]
We are assuming that only one puppy is given away!
Step-by-step explanation:
6 puppies in total
4/6 are female 2/6 are male
2/6 female and brown 2/6 female and white 1/6 male and brown 1/6 male and white
We want all of the male population which is 2/6 and the 2/6 of the female population that are brown added together
[tex]\frac{2}{6} + \frac{2}{6} = \frac{4}{6} = \frac{2}{3}[/tex]
x-intercept of 5 and a y-intercept of -4.
Write this street's equation in slope intercept form.
Answer:
y = 5x -4 or you could also write y = 5x + -4
it's still the same thing.
Step-by-step explanation:
find the angles of a cyclic quadrilateral ABCD in Angle A = (4x+20 )^0 , Angle B = (3x+5 )^0 , Angle C =(4y)^0 , Angle D = (7y-5)^0
Answer:
<A = 120degrees
<B = 80degrees
<C = 60degrees
<D = 100degrees
Step-by-step explanation:
For a cyclic quadrilateral, the sum of the adjacent angle of the quadrilateral are equal, hence;
<A + <C = 180
<B + <D = 180
Substitute the given values
4x+20+4y = 180
4x+4y =1 60
x + y = 40 ...1
Similarly;
3x+5+7y - 5 = 180
3x+7y = 180 ....2
Solving simultaneously
x + y = 40 ...1 .....* 3
3x+7y = 180 ....2 ...... *1
__________
3x + 3y = 120 ...1 .
3x+7y = 180 ....2
Subtract
3y - 7y = 120 - 180
-4y = -60
y = 15
Since x+y = 40
x + 15 = 40
x = 40 - 15
x = 25
<A = 4x+20
<A = 4(25)+20
<A = 120degrees
<C = 180 - <A
<C = 180 - 120
<C = 60degrees
<B = 3x+5
<B = 3(25)+5
<B = 80degrees
<D = 180 - <B
<D = 180 - 80
<D = 100degrees
3. Mrs. Lopez, a counselor at Round Rock High School. found that 18% of the students had a math class first period. If there are 800 students at the school, how many students are NOT in a math class for first period?
Answer:
656 students
Step-by-step explanation:
18% of 800 is 144, and 800-144= 656 :)
A recliner chair is normally $750 is discounted to $600. What is the percent discount?
Answer:
20%
Step-by-step explanation:
Discount = Original Price x Discount %/100
Discount = 750 × 20/100
Discount = 750 x 0.2
You save = $150.00
Final Price = Original Price - Discount
Final Price = 750 - 150
Final Price = $600.00
Answer:
20%
Step-by-step explanation:
Just multiply 750 by 20%, and you will get 150. Subtract and you will get 600. That means my answer is correct.
Good Luck!
Determine the measure of angle o to the nearest degree.
D
17 m
Ꮎ
B.
13 m
A
62°
С
Nolan rode his bicycle from his house to the store at a speed of 4.5 mph. If it took him 16 minutes to get there, how many miles is the store from Nolan's house.
Answer:
1.2mi
Step-by-step explanation:
16/60 x4.5=1.2 mi
No links plz
x+1/ 3x^3 +10x^2-x-9
Answer:
You didn't tell us much on what to do, so I just guessed you wanted it simplified. If you want a different answer, please do so tell me and I'll edit my answer to fit.
Simplified: 10[tex]x^{2}[/tex] + [tex]\frac{1}{3x^{3} }[/tex] - 9
hey guys please tell me whats 40% off $800
Answer:
320
Step-by-step explanation:
800 x 0.4 = 320.
I’m trying to bring my grade up by doing some makeup work so can someone please answer this for me please
Answer:
A and B (answer #2)
Step-by-step explanation:
right triangles: c^2 = a^2 + b^2
c is the largest side
for A: c = 5, a = 3, b = 4
5^2 = 3^2 + 4^2
25 = 25, so A is a right triangle
for B, c = 13, a = 5, b = 12
13^2 = 5^2 + 12^2
169 = 169, so B is a right triangle
for C, c = 4, a = 2, b = 3
4^2 = 2^2 + 3^2
16 ≠ 13, so C is not a right triangle
So, A and B are right triangles.
Write equivalent fractions for 2 4/5 and 2 2/3 using a common denominator.
Answer:
2 12/15 and 2 10/15
Step-by-step explanation:
4 x 3 = 12
2 x 5 = 10
Answer:
2 4/5=2 12/15
2 2/3=2 10/15
both with a common denominator of 15
hope this helps
have a good day :)
Step-by-step explanation:
<1 and <2 are complementary angles. The measure of <1 is 54 degrees. The measure of <2 is 4x degrees. Find the value of x.
Answer:
9
Step-by-step explanation:
Complementary means they add up to 90 degrees.
54 + 4x = 90
4x = 36
x = 9
Dakota paid $48.60 for a new backpack, and this included an 8% sales tax. What is the price before tax.
Answer:
The price before sales tax was added was $9.72.
Step-by-step explanation:
48.60 x 0.8 = 38.88 (Sales tax price)48.60 - 38.88 = 9.72 (Price before sales tax)The manager of an ice cream shop is considering which ice cream flavor to offer as the special flavor next month. She asks 175 people whether they like mint or strawberry ice cream. The results are in the table below. The manager wants to increase sales, so she is deciding whether to offer mint or strawberry ice cream.
Answer:
strawberry-49%-51%
Step-by-step explanation:
The manager should offer strawberry ice
cream because 49% of the
customers surveyed like mint and 51% of the customers like strawberry
Is the dilation an enlargement or a reduction base on the picture attached ?how can u tell ?
NEED HELP ASAP !
Answer:
Reduction
Step-by-step explanation:
Whenever you see a shape graphed where the points have ' after the letter, then that is the RESULT. So, the yellow parallelogram ABCD is the original, and the blue parallelogram A'B'C'D' is the result, which is obviously smaller than the original. So that means that it's a reduction.
I hope this made sense and helped! :)
Answer:
Step-by-step explanation:
The yellow rectangle is an enlargement of the blue one, and is a positive dilation. The blue rectangle is shrunken from the yellow one and is a negative dilation.
Given that a - b = 3 and ab=5, find, without the use of a calculator,
the value of a^2 +b^2?
Answer:
19
Step-by-step explanation:
a-b=3 ab=5
a²+b² = (a-b)²+2ab ( a general formula)
= 3²+2×5
=9+10 = 19
HELP!!! answer quickly pls
Answer:
X-axis
Step-by-step explanation:
please help to solve the question
[tex] \: \: \: \: \: \blue{\underline{\underline{ \large{ \tt{ \red{✧A \: N \: S \: W \: E \: R}}}}}}[/tex]
[tex] \large{ \tt{✽ Step - By - Step \:Explanation}} : [/tex]
[tex] \underline{ \underline{ \large{ \tt{G \: I\: V \: E \: N}}} }: [/tex]
C.P of two mobile set = Rs 55555Profit % on selling 1 mobile = 10%Loss % on selling another mobile = 10%[tex] \underline{ \underline{ \large{ \tt{S\: O \: L \:V \:I \: N \: G}} }}....[/tex]
[tex]\begin{array}{ |c| c | } \tt{Case \: I}& \text{Case \: II} \\ \hline \hline \tt{CP = x} & \tt{ CP = 55555 - x} \\ \tt{Profit\% =10 } & \tt{Loss\% = 10\%} \\\ \tt{SP_{1} = \frac{cp(100 + P\%)}{100} }\\ & \tt{SP_{2} = \frac{cp(100 - L\%)}{100} }\\ = \tt{\frac{x(100 + 10)}{10} } & = \tt{\frac{9 \cancel{0}(55555 - x)}{1 \cancel{00}}} \\ \\ = \frac{11}{10} x & = \tt{\frac{499995 - 9x}{10}} \end{array}
[/tex]
[tex] \underline{ \large{ \tt{According \: To \:Question \: (ATQ)}} }: [/tex]
[tex] \large{ \tt{ SP_{1} = SP_{2}}}[/tex]
⤏ [tex] \large{ \tt{ \frac{11}{10} x = \frac{499995 - 9x}{10}}} [/tex]
⤏ [tex] \large{ \tt{110x = 4999950 - 90x}}[/tex]
⤏ [tex] \tt{110x + 90x = 4999950}[/tex]
⤏ [tex] \large{ \tt{200x = 4999950}}[/tex]
⤏ [tex] \large{ \tt{x = \frac{4999950}{200}}} [/tex]
⤏ [tex] \large{ \tt{x = 24999.97}}[/tex]
[tex] \large{ \tt{Replacing \: Value}} : [/tex]
⤏ [tex] \large{ \tt{ SP = 2( \frac{11}{10 } \times 24999.97) = \underline{Rs \: 54999.934}}} [/tex]
[tex] \large{ \tt{CP = Rs \: 55555}}[/tex]
Since SP < CP , he / she made a loss
[tex] \large{ \tt{Loss\% = \frac{CP- SP}{CP} \times 100\% }}[/tex]
⟶ [tex] \large \tt \: \frac{55555 - 54999.934}{55555} \times 100\%[/tex]
⟶ [tex] \large{ \tt{0.99\%}}[/tex]
⟶[tex] \boxed{ \large{ \tt{1\%}}}[/tex]
Hence , Loss percent = 1%
Hope I helped ! ♕
Have a wonderful day / night ! ツ
✏[tex] \underbrace{ \overbrace{ \mathfrak{Carry \: On \: Learning}}}[/tex] !!
▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁
Answer:
[tex]\begin{gathered}\begin{array}{ |c| c | } \tt{Case \: I}& \text{Case \: II} \\ \hline \hline \tt{CP = x} & \tt{ CP = 55555 - x} \\ \tt{Profit\% =10 } & \tt{Loss\% = 10\%} \\\ \tt{SP_{1} = \frac{cp(100 + P\%)}{100} }\\ & \tt{SP_{2} = \frac{cp(100 - L\%)}{100} }\\ = \tt{\frac{x(100 + 10)}{10} } & = \tt{\frac{9 \cancel{0}(55555 - x)}{1 \cancel{00}}} \\ \\ = \frac{11}{10} x & = \tt{\frac{499995 - 9x}{10}} \end{array} \end{gathered} [/tex]
what is the negative x-intercept of y=x^2-2x-3 PLEASE HELP!!
Answer:
(-1,0)
Step-by-step explanation:
Riley took 5 tests in science. Each test had a different score. The mean score of the tests was 90%. The median score of the tests was 85%. Based on this information, select the two statements that must be true.
A: More than half of the scores were 85% or greater.
B: More than half of the scores were 90% or greater.
C: There were no scores less than 85%
D: There were no scores less than 90%
E: At least one score was exactly 85%
F: At least one score was exactly 90%
Answer:
A: More than half of the scores were 85% or greater.
E: At least one score was exactly 85%
Step-by-step explanation:
Here the 5 test would be taken in science so 85% would be the result of one of the test
Also 85% represent the median so it means there are 2 values more and 2 values less
So there are 3 results with 85% or greater
Hence, the option A and Option E is correc
And, the rest of the options are wrong
Answer:
A and E
Step-by-step explanation:
Someone please help
PLZZZZZZZZZZ HELP ITS FOR A TEST!!!The question is in the blue, the way I want you to solve it is the second one
Write the expression 14(x+8) one other way.
72 paper clips to 63 paper clips
find the change in percent
Answer:
The number of paperclips decreased by 12.5%
Step-by-step explanation:
72-63=9
9/72 = .125 or 12.5%
Answer:
Step-by-step explanation:
To get percentage change, we use the formula:
Percentage change =
Here,
the new value is the later value of 63 and the old value is the first value of 72
Plugging in the values in the formula gives us:
Percentage change =
The percent change is 12.5% (we can also say that it is a decrease of 12.5% since negative)
The circumference of the circle shown below is 54 centimeters. Which
expression gives the length in centimeters of ?
х
120"
O A.
360
.. 545
120
y
ОВ.
120
360
54
O c.
360
-.54
120
O D.
120
• 545
360
Answer:
B
Step-by-step explanation:
120/360 54