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3 years ago

6

2 to the power of 2 + 1 5

2 answers:

zzz [600]3 years ago

6 0

Answer:

2^2 + 15 = 19

Step-by-step explanation:

2 to the power of 2 literally equals 2 x 2 which is 4.

4 + 15 = 19

HOPE THIS HELPS

BRAINLIEST APPRECIATED AND PLZZ GIVE ME A THANKS

valkas [14]3 years ago

4 0

Answer:

2^2+15

4+15=19

19

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Mazyrski [523]

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Step-by-step explanation:

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3 years ago

What is 25 percent of thirty?<br> Give Step by step explanation.<br> please.

ohaa [14]

25% of 30 = 7.5
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3 0

3 years ago

Read 2 more answers

Louise, Tammy, Delores, and Sheryl score 78 points total in the tennis matches they play. They score a consecutive number of poi

irga5000 [103]

$\huge\boxed{18\ \text{points}}$

We'll represent Louise's, Tammy's, Delores's, and Sheryl's point values with $x$ , $x+1$ , $x+2$ , and $x+3$ respectively since each one is 1 point more than the last.

Add all of these values up and set it all equal to $78$ .

$x+x+1+x+2+x+3=78$

Now, simplify.

$4x+6=78$

Subtract $6$ on both sides.

$\begin{aligned}4x+6-6&=78-6\\4x&=72\end{aligned}$

Divide both sides by $4$ .

$\begin{aligned}\frac{4x}{4}&=\frac{72}{4}\\x&=\boxed{18}\end{aligned}$

Since Louise's score is $x$ , the answer is $18$ .

<h3>Double-checking</h3>

To verify our answer, add the point totals $18$ , $19$ , $20$ , and $21$ .

This equals $78$ , so we can be sure the answer is correct.

5 0

2 years ago

Write a simplified polynomial expression in standard form to represent the area of the rectangle below.

Burka [1]

Area of Rectangle = length times width
lets say length = 2x-4
width = x+5

Note: you can switch these around, width could be 2x-4 and length could be x+5, it doesnt matter.

With that being said:
length * width = area
(2x-4)(x+5)=area
FOIL (First Outer Inner Last)
$2x^{2}+10x-4x-20=area$
Simplify:
$x^{2}+6x-20=area$

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3 years ago

EASY MATH!!! GIVING BRAINLIEST!!!

Harman [31]

120 grams half life at 45 days would be 60 then half life of 60 in another 45 days (90 total) should be 30 grams

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3 years ago