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3 years ago

Which unit rates would be appropriate for describing the speed of cars in a race?

1 answer:

7 0

I would think miles per hour would be the best units to use because that is what the speedometer of a car is read in. Hope this helped! comment back with any questions you still have!

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Simplify 2[(9 - 5)^5 / 8]

Len [333]

2[(9 - 5)^5 / 8] = 2[4^5 / 8] = 2[1,024 / 8] = 2[128] = 256

7 0

3 years ago

PLEASE HELP ME JUST THREE QUESTIONS

Ratling [72]

Reason 1 and 2 are the best answers

8 0

3 years ago

(-1/7)^{-1} please help

Sidana [21]

$(- \frac{1}{7}) ^{-1}= \frac{1}{ -\frac{1}{7} } =-7$

3 0

3 years ago

Read 2 more answers

Samuel pays $825 for rent and utilities each month. His lease lasts for another 4 months. He has $4,750 in his savings account a

Amiraneli [1.4K]

Answer:

Step-by-step explanation:

<h2>Subscribe to lance Mobster</h2>

4 0

3 years ago

Please help me with this homework question. No silly answers please and no bots! I will mark brainliest to whoever gets all them

MatroZZZ [7]

Answer:

The formula for the area of the triangle is:

$\displaystyle A=24x^2$

When <em>x</em> = 3, the area is 216 square centimeters.

When <em>x </em>= 2.4, the area is 138.24 square centimeters.

And when <em>x</em> = 5, the hypotenuse of the triangle is 50 centimeters.

Step-by-step explanation:

We are given a right triangle with a height of 8<em>x</em> and a base of 6<em>x</em>.

The area of a triangle is given by the formula:

$\displaystyle A=\frac{1}{2}bh$

So, by substitution:

$\displaystyle A=\frac{1}{2}(8x)(6x)=24x^2$

When <em>x </em>= 3, the area will be:

$\displaystyle A(3)=24(3)^2=216\text{ cm}^2$

And when <em>x</em> = 2.4, the area will be:

$A(2.4)=24(2.4)^2=138.24\text{ cm}^2$

When <em>x </em>= 5, the height will be 8(5) = 40 cm and the base will be 6(5) = 30 cm.

By the Pythagorean Theorem:

$a^2+b^2=c^2$

So:

$(40)^2+(30)^2=c^2$

The hypotenuse will be:

$c=\sqrt{1600+900}=\sqrt{2500}=50\text{ cm}$

3 0

3 years ago