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3 years ago

Which expression is equivalent to 64 – 9x^2?

Mathematics

1 answer:

Rzqust [24]3 years ago

6 0

Answer:

Option C is correct

Step-by-step explanation:

A = 64 - 9x^2

= 8^2 - (3^2)(x^2)

= 8^2 - (3x)^2

Hope this helps!

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. Of the 200 students surveyed in 5th grade, 120 prefer bananas and 80 prefer apples. what is the part to whole ratio?

kaheart [24]

120:200 prefer bananas, 80:200 prefer apples

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2 years ago

What is the area of the floor of a room that is 12 feet wide and 18 feet long

BabaBlast [244]

area of floor = length * width

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2 years ago

Read 2 more answers

Math help questions <br>

Evgen [1.6K]

After 1 year, the initial investment increases by 7%, i.e. multiplied by 1.07. So after 1 year the investment has a value of $800 × 1.07 = $856.

After another year, that amount increases again by 7% to $856 × 1.07 = $915.92.

And so on. After t years, the investment would have a value of $\$800 \times 1.07^t$ .

We want the find the number of years n such that

$\$856 \times 1.07^n = \$1400$

Solve for n :

$856 \times 1.07 ^n = 1400$

$1.07^n = \dfrac74$

$\log_{1.07}\left(1.07^n\right) = \log_{1.07}\left(\dfrac74\right)$

$n \log_{1.07}(1.07) = \log_{1.07} \left(\dfrac74\right)$

$n = \log_{1.07} \left(\dfrac74\right) = \dfrac{\ln\left(\frac74\right)}{\ln(1.04)} \approx \boxed{8.3}$

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1 year ago

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A group of 5 families at Baileys Middle School sold magazine subscriptions to raise money for the school. $6.00, $7.00, $4.00,

mash [69]

Answer:

The median amount of money raised is $5.00

Step-by-step explanation:

To find the median amount of money raised, we will follow the steps below:

First, arrange the data giving in ascending order. That is

$6.00, $7.00, $4.00, $5.00, $3.00

We will arrange it in ascending order, hence

$3.00, $4.00, $5.00, $6.00, $7.00

The median is the middle number, we will now proceed to take the middle number.

The middle number is $5.00

Therefore, the median amount of money raised is $5.00

6 0

3 years ago

Help me please <br> !!!!!!!!!!!!!!!

Crank

16 units just count the tiny lines in the middle by 2

3 0

2 years ago