Which are true about the area of a circle

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Answer 1

Answer:

Answer:

ironically the units are Always squared and area is the distance around the circle

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Mr. Floyd, the school librarian, is ordering new keyboards and mice for all of the school's computer labs. Each keyboard costs $13.50, and each mouse costs $6.50. There are 3 computer labs in the school, and each computer lab has s computer stations.Pick all the expressions that represent how much Mr. Floyd will spend on new keyboards and mice.

Answers

Answer:

13.50 + 6.50 x ( 3 x s) =

Step-by-step explanation:

I don't know what the options are, however that is how I would write it.

Help i have to turn this in 3 min someone????

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Answer:

Step-by-step explanation:

NEED HELP URGENTLY!!

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Answer:

19.8

Step-by-step explanation:

Estimate 3√43

There is a formula for estimating square root of non-perfect square numbers
√A²±B = A ± B/2A
where A² is the nearest perfect square, B is the difference between the original number and the perfect square

Using same formula, we'll estimate √43

43 = 36 + 7= 6² + 7
√43 = √(6² + 7) = 6 + 7/2*6 = 6.583 ≈ 6.6 rounded to nearest tenth

Answer to the original question:

3√43 = 3*6.6 = 19.8

Can you help me to do this please?Determine the inverse of the h(x)

Answers

Answer:

$h^(-1)(x)=x^3+6x^2+12x+7$

Explanation:

Given the below function;

$h(x)=\sqrt[3]{x+1}-2$

We'll follow the below steps to determine the inverse of the above function;

Step 1: Replace h(x) with y;

$y=\sqrt[3]{x+1}-2$

Step 2: Switch x and y;

$x=\sqrt[3]{y+1}-2$

Step 3: Solve for y by first adding 2 to both sides;

$\begin{gathered} x+2=\sqrt[3]{y+1}-2+2 \n x+2=\sqrt[3]{y+1} \end{gathered}$

Step 4: Take the cube of both sides;

$\begin{gathered} (x+2)^3=(\sqrt[3]{y+1})^3 \n (x+2)^3=y+1 \end{gathered}$

Step 5: Expand the cube power;

Recall;

$(a+b)^3=a^3+3a^2b+3ab^2+b^3$

Applying the above, we'll have;

$\begin{gathered} (x+2)^3=y+1 \n x^3+3x^2\cdot2+3x\cdot2^2+2^3=y+1 \n x^3+6x^2+12x+8=y+1 \end{gathered}$

Step 6: Subtract 1 from both sides of the equation;

$\begin{gathered} x^3+6x^2+12x+8-1=y+1-1 \n x^3+6x^2+12x+7=y \n \therefore y=x^3+6x^2+12x+7 \end{gathered}$

Step 7: Replace y with h^-1(x);

$h^(-1)(x)=x^3+6x^2+12x+7$

If f(x) = 7 sin x + 10 cos x,

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Answer:

7+1x=8, 8+10 =x18 is your answer

01:30:4Five times the sum of a number and 27 is greater than or equal to six times the sum of that number and 26. What is the
solution set of this problem?

Answers

Answer:

x<_ 21

Step-by-step explanation:

5(x+27)>_ =6(x+26)

5x +135 >_ 6x +156

5x >_6x +21

-x>_21

x<_21

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A theorem in geometry states that the measure of an inscribed angle is half the measure of its intercepted arc. In the figure, angle C intercepts arc AB and line AB is the diameter of the circle. Which equation is a step in showing that the measure of angle C=90 degrees?

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What is the lateral surface area of this cylinder? r = 7ft h = 16ft Answers:702.96 sq ft703.36 sq ft703.96 sq ft704.36 sq ft