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love history [14]
3 years ago
9

Tyler used 6 gallons of paint to paint 4/7 of a fence. How many gallons will it take to paint the whole fences

Mathematics
1 answer:
vredina [299]3 years ago
5 0

Answer:

Step-by-step explanation:

(6 gal)/(4/7 fence) = (21/2 gal)/fence = (10.5 gal)/fence

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If sin square theta = 0.75, then cos =
sergeinik [125]

Answer:

\cos\theta=\pm0.5

Step-by-step explanation:

Given:

\sin^2\theta=0.75

To find \cos\theta

Using trigonometric relations for sums and differences of squares of the ratios.

We know:

\sin^2\theta+\cos^2\theta =1

Plugging in  \sin^2\theta=0.75 in the above relation.

0.75+\cos^2\theta =1

Subtracting both sides by 0.75.

0.75+\cos^2\theta-0.75 =1-0.75

\cos^2\theta =0.25

Taking square root both sides.

\sqrt{\cos^2\theta} =\sqrt{0.25}

∴ \cos\theta=\pm0.5  (Answer)

6 0
3 years ago
Write a fraction to represent the division in each situation. ; Jason plans to pay the water bill with two equal payments. Water
xenn [34]

9514 1404 393

Answer:

  $35/2

Step-by-step explanation:

Division by 2 is indicated by putting 2 in the denominator of the fraction:

  35/2

6 0
2 years ago
Please help me I really need help
Oliga [24]

Answer:

Step-by-step explanation:

(1) 2x - 6y = -12

(2) x + 2y = 14

There is a -6y and a +2y. Since they have opposite signs, I'll try to eliminate the y terms. (That's my choice. There is more than one way to solve these.)

Multiply eq. (2) by 3:

3x + 6y = 42

Then add the result to eq. (1) to eliminate the y terms:

2x - 6y = -12

3x + 6y = 42

------------------

5x   = 30,  so x = 6

Now plug the value of x into eq. (2) and solve for y:

6 + 2y = 14

2y = 8

y = 4

Why did I use eq. (2) to solve for y? Because it's less work. I could have used eq. (1) instead:

2(6) - 6y = -12

12 - 6y = -12

-6y = -24

y = 4

More than one way to solve.

5 0
3 years ago
. Round off the answer correctly.. . 8.7 g + 15.43 g + 19 g = 43.13 g   . . a. 43.130 g. b. 43.1 g. c. 43 g. d. None of the abov
arsen [322]
<span>Round off the answer correctly.. . 8.7 g + 15.43 g + 19 g = 43.13 g .
 a. 43.130 g.
b. 43.1 g.
c. 43 g.
 d. None of the above..
From the above given answers , most appropriate answer is "43.1" g. as according to the rounding rules, if the last number of digit is smaller than 5, then </span> <span>we leave the digit we want to round to alone.</span>
3 0
3 years ago
HELPSDBNENANSSnshejs
Ganezh [65]
I WILL TRY AND FIGURE IT OUT RQ
4 0
2 years ago
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