i think it should be answer B
I believe its also b after working it out for around 20 minutes i have to come to the conclusion that its B this can be APPROVED by the nation math's government department
gerad wrote down the sum of the swuares of two numbers as shown. Unfortunately sone of the digits cannkt be seen because they are covered in ink. What is the last digit of the first number? Please I really need this for a test.
The equation of the sum of any two squares x and y is x^2 + y^2 = (x + y)^2 - 2xy
How to determine the last digitThe question is incomplete, as there are no parameters to determine the last digit of the first number.
So, I will give a general explanation
The sum of squares of two numbers x and y is:
[tex]x^2 + y^2 = (x + y)^2 - 2xy[/tex]
Assume the numbers are 5 and 6, then the equation becomes
[tex]5^2 + 6^2 = (5 + 6)^2 - 2*5*6[/tex]
Evaluate
[tex]5^2 + 6^2 = 61[/tex]
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Two ordered pairs in the scatter plot are (10,50) and (25, 20). What is
the slope of the line through those two points?
For which equation does the point (2, 6) represent a possible solution?
HELP due in 5 mins.. Reference books are for use in the library. There are 16 bookshelves for the reference books. After use, they need to be returned to a special collection box for shelving. If 128 reference books are in use and 84 reference books are in the collection box, how many reference books are on the shelf?
Answer:
The answer is 13.25 I'm so sorry if its incorrect please let me know so I can fix it
l//m idenify the angles that are congruent to 1
Please help only have 10 mins to finish this test
Answer:
The maximum height (vertex) is at (0,256), which is also when it began (Y-Intercept). It will take 4 units for it to hit the ground.
Let us know how you do on the test.
Part 1 of 2
Together, teammates Pedro and Ricky got 2690 base hits last season. Pedro had 284 more hits than Ricky. How many hits did each player have?
Subtract the difference:
2690 - 284 = 2406
Divide by 2:
2406 / 2 = 1203
Ricky Had 1,203
Pedro had 1203 + 284 = 1,487
Ami is 160cm tall.
The ratio of Ami's height to Nadia's height is 8 : 7
Work out how many centimetres taller Ami is than Nadia.
Find the area of the figure.
Answer:
Step-by-step explanation:
Which expression is equivalent to -6 - (-2)?
Choose 1 answer
А
- 6+2
B
-6+ (-2)
С
-2+6
D
2 + 6
Answer:
A: -6 + 2
Step-by-step explanation:
remember two negative signs makes a positive sign
Solve *
-X? + 7x + 5 = 0
-7 - V69-7+ V69
-2.
-2
7+ V69
a.
7- V69
-2
C.
-2
|-7- 29
-7+29
b
d.
-7 - V50 -7+ 50
-2
-2
-2.
-2.
А
B.
С
O
D
Answer:
the correct answer is : b
A frozen yogurt shop typically sells the same number of kid cones as waffle cones. What is the probability that the next 6
customers order 2 kid cones and 4 waffle cones?
Round to the nearest whole
part one is -3 and 7
part two is -3
Answer:
Given equation:
[tex]\sqrt{30-2x} =x-3[/tex]
Square both sides:
[tex]\implies (\sqrt{30-2x})^2 =(x-3)^2[/tex]
[tex]\implies 30-2x =(x-3)^2[/tex]
Expand the right side:
[tex]\implies 30-2x =x^2-6x+9[/tex]
Add [tex]2x[/tex] to both sides:
[tex]\implies 30 =x^2-4x+9[/tex]
Subtract 30 from both sides:
[tex]\implies x^2-4x-21=0[/tex]
Factor:
[tex]\implies (x-7)(x+3)=0[/tex]
Therefore,
[tex]x-7=0 \implies x =7[/tex]
[tex]x+3=0 \implies x=-3[/tex]
Substitute both values of [tex]x[/tex] into the original equation to check:
[tex]x=7 :[/tex]
[tex]\implies\sqrt{30-2(7)} =7-3[/tex]
[tex]\implies 4=4[/tex]
correct!
[tex]x=-3[/tex]
[tex]\implies\sqrt{30-2(-3)} =-3-3[/tex]
[tex]\implies 6 \neq =-6[/tex]
incorrect!
Therefore, [tex]x=7[/tex] is the only correct solution, and [tex]x=-3[/tex] is the extraneous solution
**Extraneous solution: a root of a transformed equation that is not a root of the original equation**
What is the exact value of tan
(19pie/12)
Answer:
[tex]\displaystyle -\sqrt{3} - 2[/tex]
Explanation:
If you recall the unit circle [from the polar graph], you would have no trouble at all figuring this out, but sinse you have trouble, do not worry about it. So, here is what you should have realised:
[tex]\displaystyle \boxed{1\frac{1}{2}\pi} = \frac{18}{12}\pi[/tex]
If you did not notise, [tex]\displaystyle 1\frac{7}{12}\pi,[/tex]or [tex]\displaystyle \frac{19}{12}\pi,[/tex]is just [tex]\displaystyle \frac{\pi}{12}[/tex]more than [tex]\displaystyle 1\frac{1}{2}\pi,[/tex]which means the exact value will either be a radical, followed by an integer or just a radical. In this case, accourding to the unit circle, you will have a radical, followed by an integer, and that will be this:
[tex]\displaystyle \frac{sin\:1\frac{7}{12}\pi}{cos\: 1\frac{7}{12}\pi} = tan\:1\frac{7}{12}\pi \\ \\ \boxed{-\sqrt{3} - 2} = \frac{sin\:1\frac{7}{12}\pi}{cos\: 1\frac{7}{12}\pi}[/tex]
It is all about memorisation of the unit circle, which I know is difficult, but you will get used to it soon.
*Now, if you had to find [tex]\displaystyle cos\:\frac{7}{12}\pi,[/tex]then the exact value would be the OPPOCITE of the exact value of [tex]\displaystyle sin\:\frac{7}{12}\pi,[/tex]which is [tex]\displaystyle -\frac{\sqrt{2} + \sqrt{6}}{4},[/tex]because you would be crossing into the second quadrant where the x-coordinates are negative, accourding to both the cartesian and polar graphs. In addition, sinse you ALREADY have both values for sine and cosine [accourding to your PREVIOUS QUESTION ASKED], all you need to do is divide both values in the order given above to arrive at the exact value for [tex]\displaystyle tan\:1\frac{7}{12}\pi.[/tex]
I am joyous to assist you at any time.
I have 0ne mango I eat half how much left.
Answer:
half
Step-by-step explanation:
Answer:
1/2 of the mango or half
Step-by-step explanation:
if arc BC is 182° in the measure of arc AC is 78°, what is the measure of angle 1?
Answer: 52 degrees
Step-by-step explanation:
among the following below which of these represents a plane
a. needle
b. screen of a cellphone
c. stars in the sky
d. tip of a pen
Answer:
B
Step-by-step explanation:
among the following below which of these represents a plane screen of a cellphone .
1 + 1+ 1 + 1 + 2+ 3+3+4+4+4+5+5+5. What is the mode
Answer:
1
Explanation:
1 is the mode due to the fact that it is repeated the most times out of all of the numbers in the expression that you gave (1 appears four times, whereas 2 only appears once, 3 only appears twice, 4 appears three times, and 5 also appears three times).
Use the Distributive
Property to rewrite 8(16) + 8(6). Then evaluate the
expression.
Answer:
see explanation
Step-by-step explanation:
8(16) + 8(6) ← factor out 8 from each term
= 8(16 + 6)
= 8(22)
= 8 × 22
= 176
Answer now will give brainless
Answer:
square root graph
Step-by-step explanation:
this is the graph given by a square root function
Ms. Denson ordered a large pizza with a diameter of 12 inches. She shared half of the pizza with another teacher. How many square
inches did she keep? Leave in terms of Pi.
Area of a circle = pi x r^2
Area of the pizza = pi x 6 ^2 = 36pi
half the pizza = 36pi/2 = 18 pi
answer: 18pi
Anja simplified the expression StartFraction 10 x Superscript negative 5 Baseline Over Negative 5 x Superscript 10 Baseline EndFraction to StartFraction 15 Over x Superscript 15 Baseline EndFraction. What mistake did Anja make? She divided the exponents instead of subtracting them. She divided the coefficients instead of subtracting them. She subtracted the coefficients instead of dividing them. She subtracted the exponents instead of dividing them.
The mistake that Anja made during the simplification of the considered expression is given by: Option C: She subtracted the coefficients instead of dividing them
What are coefficients?Constants who are in multiplication with variables are called coefficients of those variables.
For example, in [tex]10x^2[/tex] we have 10 as coefficient of [tex]x^2[/tex]
Those variables who have got no visible coefficient has 1 as their coefficient. Thus, [tex]x^2[/tex] has got its coefficient as 1. It is true since 1 multiplied with any number is that number itself.( [tex]x^2 = 1 \times x^2[/tex] )
What are some basic properties of exponentiation?If we have [tex]a^b[/tex] then 'a' is called base and 'b' is called power or exponent and we call it "a is raised to the power b" (this statement might change from text to text slightly).
Exponentiation(the process of raising some number to some power) have some basic rules as:
[tex]a^{-b} = \dfrac{1}{a^b}\\\\a^0 = 1 (a \neq 0)\\\\a^1 = a\\\\(a^b)^c = a^{b \times c}\\\\ a^b \times a^c = a^{b+c} \\\\^n\sqrt{a} = a^{1/n} \\\\(ab)^c = a^c \times b^c[/tex]
For the considered situation, the expression that Anja is simplifying is:
[tex]\dfrac{10x^{-5}}{-5x^{10}}[/tex]
Anja simplified it to [tex]\dfrac{15}{x^{15}}[/tex]
She performed operations with variable 'x' correctly since
[tex]\dfrac{x^{-5}}{x^{10}} = \dfrac{1}{x^5} \times \dfrac{1}{x^{10}} = \dfrac{1}{x^{15}}[/tex]
But coefficients will also get divided. Instead of dividing 10 by -5, she subtracted them (as 10 - (-5) = 10 + 5 = 15)
This was her mistake.
The correct simplification would be: [tex]\dfrac{10x^{-5}}{-5x^{10}} = \dfrac{10}{-5} \times \dfrac{x^{-5}}{x^{10}} = -2 \times \dfrac{1}{x^{15}} = \dfrac{-2}{x^{15}} = -2x^{-15}[/tex]
Thus, the mistake that Anja made during the simplification of the considered expression is given by: Option C: She subtracted the coefficients instead of dividing them
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Answer: c
Step-by-step explanation:
A company sells bags of cookies. Each bag of cookies should have a mass of 60 grams. Any bag that is not within 7 grams of this mass cannot be sold. If x is the mass of a bag of cookies, which inequality can be used to determine whether the bag can be sold?
The inequality that can be used to determine whether the bag can be sold is; x + 7 >= 60
Representation using InequalitiesAccording to the question;
Any bag that is not within 7 grams of this mass cannot be sold.It then follows that since, the expected mass should be 60 grams.
The required inequality is; x + 7 >= 60
Read more on inequalities;
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Select all the terms that apply to the shape
A banner is hung for a party. The distance from a point on the bottom edge of the banner to the floor can be determined by using the function f(x) = 0.25 x2 − x + 9.5 , where x is the distance, in feet, of the point from the left end of the banner. How high above the floor is the lowest point on the bottom edge of the banner? Explain.
That's possible when function tends to zero
[tex]\\ \rm\hookrightarrow 0.25x^2-x+9.5=0[/tex]
[tex]\\ \rm\hookrightarrow 1/4x^2-x+19/2=0[/tex]
[tex]\\ \rm\hookrightarrow x^2-x+38=0[/tex]
[tex]\\ \rm\hookrightarrow x=\dfrac{1\pm\sqrt{1-152}}{2}[/tex]
[tex]\\ \rm\hookrightarrow x=\dfrac{1\pm\sqrt{151}i}{2}[/tex]
Answer:
8.5 ft
Step-by-step explanation:
[tex]f(x) = 0.25x^2 - x + 9.5[/tex]
To find the minimum point of the function, differentiate:
[tex]f'(x) = 0.5x - 1[/tex]
set to zero and solve for x:
[tex]f'(x) =0\\ \implies0.5x - 1=0\\\implies x=2[/tex]
Substitute found value of x into function to find y (height):
[tex]f(2) = 0.25(2)^2 - 2 + 9.5=8.5[/tex]
Therefore, the lowest point on the bottom edge of the banner is 8.5 ft above the floor.
Select all true statements about the graph
Answer: A, C
Step-by-step explanation:
a) True since this is when the graph intersects the x axis.
b) False, this is a minimum, not a maximum.
c) True, this is tue turning point.
d) False, the axis of symmetry is x=-3, not y=-4.
rotate shape A 180°
please help asap
(-2,-4) , (-2, -3) , (-4, -3)
when you rotate 180° then the x and y of each point will become the opposite
Answer:
(x-2,y-4), (x-2,y-3) and (x-4,-y3)
Step-by-step explanation:
The rule is (x,y)-->(-x,-y) so
(x2,y4)=(x-2,y-4)
(x2,y3)=(x-2,y-3)
(x4,y3)=(x-4,-y3)
never mined rong center point It would not let me change any thange
∆(AXY) ~ ∆(ABC). What is the value of x? Round off to nearest thousandths.Immersive Reader
Answer:
The value of x round to the nearest tenth is 12.04
Step-by-step explanation:
We have used trigonometric ratios to calculate the required value.
Tenisha solved the equation below by graphing a system of equations. log subscript 3 baseline 5 x = log subscript 5 baseline (2 x 8) which point approximates the solution for tenisha’s system of equations? (0.9, 0.8) (1.0, 1.4) (2.3, 1.1) (2.7, 13.3)
The point that approximates the solution for Tenisha's system of equations is (1, 1.4).
given functions are:
[tex]f(x) =log_{3} 5x\\\\f(x) = log_{5} (2x+8)[/tex]
How will one get the required solution?One needs to plot the graphs and can get the intersection points of these two functions on coordinate axes and intersection points will be the required solution.
Find the attached graph
In the attached graph, we can see that the intersection point of given functions is approximately (1, 1.4)
Therefore, the point that approximates the solution for Tenisha's system of equations is (1, 1.4).
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A graduate student believes that people consider faces with more contrast between eye color and skin tone as more feminine. He identifies the null and alternative hypotheses as: