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3 years ago

6

URGENTT!!!!!!!

1 answer:

Cloud [144]3 years ago

4 0

What is this about because I’m confuse

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3x+4=-5x-3+15, what are some of the steps that should be taken to solve for x? Select all that apply.

tino4ka555 [31]

3x+4=-5x-3+15
First combine like terms:
3x+4=-5x+12
Get x on one side:
3x+4=-5x+12
-3x -3x
4=-8x+12
Next get x by itself:
4=8x+12
-12 -12
-8=8x
Now divide one more time to get x by itself since 8x is 8 times x and we must do the opposite (÷).
-8/8=8x/8
-1=x ---> x=1

6 0

4 years ago

If there are 7.5 gallons in every cubic foot, how many gallons of water are needed to fill a pool that is 50 feet long, 30 feet

Angelina_Jolie [31]

D !!!!!!!!!!!!!!!!!!!

5 0

2 years ago

What is x when y = 100?<br><br> about 21<br> about 19<br> about 13<br> about 5

Murrr4er [49]

Answer:

About 13

Step-by-step explanation:

There's no equation shown, but you can guesstimate and say it's between 10 and 20, so about 13 makes sense

3 0

4 years ago

Read 2 more answers

Noah brought 1 fishing pole, 2 corks, and 1 worms. What is the total cost? Each fish cost $2. Corks is 2 fish, poles is 5 fish,

slava [35]

The total cost is 21.50.

Hope this helps!!

3 0

3 years ago

Read 2 more answers

If a and b are the measures of two first quadrant angles and sin a = 4/9 and sin b = 2/5 find sin(a+b).

frutty [35]

Answer:

$sin(a+b)=\frac{4\sqrt{21}+2\sqrt{65}}{45}$

Step-by-step explanation:

we are given

$sin(a)=\frac{4}{9}$

$sin(b)=\frac{2}{5}$

Firstly, we will draw triangle

we get

$cos(a)=\frac{\sqrt{65} }{9}$

$cos(b)=\frac{\sqrt{21} }{5}$

now, we can sue formula

$sin(a+b)=sin(a)cos(b)+cos(a)sin(b)$

now, we can plug values

$sin(a+b)=\frac{4}{9}\times \frac{\sqrt{21} }{5}+\frac{\sqrt{65} }{9}\times \frac{2}{5}$

now, we can simplify it

$sin(a+b)=\frac{4\sqrt{21}+2\sqrt{65}}{45}$

6 0

3 years ago