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3 years ago

PLEASE HELP

Mathematics

2 answers:

andre [41]3 years ago

7 0

A. isolating the x² term and finding the square root of both sides

rjkz [21]3 years ago

3 0

The correct answer is A
Hope this helped :)

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The perimeter of a rectangle is 12x + 4. If the width is 2x, the length of the rectangle is

DENIUS [597]

Answer:

4x+2

Step-by-step explanation:

Perimeter = 2(width) + 2(length). So 12x+4 = 2(2x) + 2(length) .

12x+4 = 4x + 2(length) then subtract 4x from both sides to get 8x+4 = 2(length). In order to get length by itself you need to divide both side by 2.

4x+2 = length. Hope this helps!

6 0

3 years ago

p varies jointly as q and the square of r, and p = 200 when q = 2 and r = 3. Find p when q = 5 and r= 2.

Margarita [4]

Step-by-step explanation:

If a variables varies jointly, we can just divide it by the other variables in relation to it.

For example, since p variables jointly as q and square of r, then

$\frac{p}{q {r}^{2} } = k$

where k is a constant

First, let find k. Substitute p= 200

q= 2, and r=3.

$\frac{200}{2(3) {}^{2} } = k$

$\frac{200}{18} = k$

$\frac{100}{9} = k$

Now, since we know our constant, let find p.

$\frac{p}{q {r}^{2} } = \frac{100}{9}$

Q is 5, and r is 2.

$\frac{p}{5( {2}^{2}) } = \frac{100}{9}$

$\frac{p}{20} = \frac{100}{9}$

$p = \frac{2000}{9}$

3 0

2 years ago

Chelsea records the number of quarts of water she gives her garden over 444 days. She rounds the measurements to the nearest \df

geniusboy [140]

Answer:

Step-by-step explanation:

Total=7

start text, T, o, t, a, l, end text, equals, 7, start fraction, 4, divided by, 8, end fraction, plus, 7, start fraction, 4, divided by, 8, end fraction, plus, 8, start fraction, 6, divided by, 8, end fraction, plus, 9, start fraction, 2, divided by, 8, end fraction

Hint #22 / 3

Let's add the whole numbers then add the fractions.

\begin{aligned} \text{Total}&=(7+7+8+9)+\left(\dfrac{4}{8}+\dfrac{4}{8} +\dfrac{6}{8}+\dfrac{2}{8}\right)\\\\ &= 31+\dfrac{16}{8}\\\\ &=31+2\\\\ &=33 \end{aligned}

Total

=(7+7+8+9)+(

)

=31+

=31+2

=33

Hint #33 / 3

Chelsea used 33 quarts of water on her garden.

6 0

2 years ago

In triangle ABC, what is the measure of angle Cif A = 85°, a = 35, and c = 25?

Wittaler [7]

Answer:

yes

Step-by-step explanation:

yes

8 0

3 years ago

Read 2 more answers

Can someone help me? Ill give brainliest :) Fill in the blank.

Snowcat [4.5K]

The fist letter A (1,5) is you would run over one then jump up 5 if that makes sense. So where you have C it needs to be A

6 0

3 years ago