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3 years ago

Which expression can be used to calculate the area of a circle?

Mathematics

1 answer:

algol [13]3 years ago

3 0

Area of a circle = pi x radius(squared)

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What is the solution set of the inequality?

jolli1 [7]

Answer:

In the pic

Step-by-step explanation:

If you have any questions about the way I solved it, don't hesitate to ask me in the comments below =)

5 0

4 years ago

Solve for x <br> -2^2(-5x+10)=100

masha68 [24]

Answer:

$x=7$

Step-by-step explanation:

Hi there!

$-2^2(-5x+10)=100$

Solve -2^2:

$-4(-5x+10)=100$

Divide both sides by -4:

$\displaystyle \frac{ -4(-5x+10)}{-4}=\frac{100}{-4} \\\\-5x+10=-25$

Subtract 10 from both sides:

$-5x+10-10=-25-10\\-5x=-35$

Divide both sides by -5:

$\displaystyle \frac{-5x}{-5} = \frac{-35}{-5} \\\\x=7$

Therefore, x = 7.

I hope this helps!

3 0

3 years ago

The height that a properly inflated basketball bounces decreases exponentially by 27.8% with each subsequent bounce after the in

n200080 [17]

Answer:

$H (b) = 0.722^b(6)$

Step-by-step explanation:

The first time the basketball bounces it reaches a height of $(1-0.278)(6) = (0.722) (6)$ .

The second time the basketball bounces it reaches a height of $(0.722) (0.722) (6) = [(0.722) ^ 2] (6)$ . Therefore, after b rebounds the height that the basketball will reach is given by:

$H (b) = 0.722^b(6)$

3 0

4 years ago

Trent writes p^2 + 30 = (p + 30)(p + 0)<br><br> Do you agree with Trent? Explain why

Bingel [31]

Answer:

Statement expressed by Trent is RIGHT.

$(p^2 + 30) = (p+30)(p +0)$

Step-by-step explanation:

Here, the given expression is:

( to show) : $(p^2 + 30) = (p+30)(p +0)$

Now, as we know by DISTRIBUTIVE PROPERTY:

A (B + C) = AB + AC

Consider the RHS of the expression:

(p +30)(p+0) = (p +30)(p) ............ ( a + 0 = a for all a)

Simplifying (p +30)(p) by distributive property, we get:

$(p +30)(p) = p(p) + 30(p) \\= p^2 + 30p\\\implies (p+30)(p+0) = p^2 + 30p$

⇒ Left side = Right side

Hence, statement expressed by Trent is RIGHT.

8 0

3 years ago

Find the equation of a line in slope-intercept form that has a slope of -3/2 and passes through the point (-8,3)

Fantom [35]

Answer:

i do not no

Step-by-step explanation:

7 0

3 years ago