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3 years ago

3(y+9)=12y+13 how many differnt solutions does it have?

2 answers:

5 0

Choice B
Exactly 1 solution

Because:

First we must disrupte
3y+27=12y+13

Next we switch one number to the other side
27=9y+13

Now we must switch the other number
14=9y

Now we must solve by dividing 14 by 9

y=1.555

This is one solution, so we now have our answer.

Rudiy273 years ago

4 0

Answer:

Exactly 1 solution!

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shutvik [7]

Answer:

18: 3/4

19: 5/8

20: 1/2

21: 9/10

22: 2/3

23: 5/6

24: 4/9

25: 2/7

26: 3/4

27: 7/10

28: 4/5 (I'm in a rush, so make sure to double check the answers)

4 0

3 years ago

<img src="https://tex.z-dn.net/?f=%20%5Csqrt%7B2%7D%20%20%20%5Cdiv%202%20%2B%202%20%5Cdiv%20%20%5Csqrt%7B2%20%7D%20" id="TexForm

NeX [460]

Answer:

$\frac{3\sqrt{2} }{2}$

Step-by-step explanation:

Given

$\frac{\sqrt{2} }{2}$ + $\frac{2}{\sqrt{2} }$ ← rationalise the denominator by multiplying by $\frac{\sqrt{2} }{\sqrt{2} }$

= $\frac{\sqrt{2} }{2}$ + ( $\frac{2}{\sqrt{2} }$ × $\frac{\sqrt{2} }{\sqrt{2} }$ )

= $\frac{\sqrt{2} }{2}$ + $\frac{2\sqrt{2} }{2}$

= $\frac{3\sqrt{2} }{2}$

5 0

3 years ago

Use the divisibility rules to determine which of the following numbers 528 is divisible by. (Check all that apply.)

Margaret [11]

The ones that are divisible are 6, 3, 2, 11, and 4.

7 0

3 years ago

What is the value of x in the equation 4x - 6+32(-2x+4)=3x -(x+4)?

Lina20 [59]

I think -2 is the answer

8 0

3 years ago

Charlie is standing 45 feet from the base of 100 foot tall tree. What is the angle of elevation from him to the kite stuck on to

galben [10]

Hey. Let me help you on this one.

In order for us to solve this problem easier, let's break it apart. We can also graph the triangle so we get visual of this problem.

I drew a quick graph for you to easier understand this question. As you can see, Charlie is standing below the tree 45 feet from it, and we need to find the unknown angle measure.

Let's form a SOHCAHTOA function which you have probably already learned in your Geometry course.

First of all let's identify our sides. The side opposite of the right triangle is a Hypotenuse, and the side that's 45 feet is adjacent, since it's adjacent to the unknown angle.

We know that we need to use $Cos$ (Cosine) with negative power to it in order to solve this question, since we are looking for the unknown angle measure.

Let's form the function which $Cos$ , Hypotenuse, and Adjacent side.

$Cos^{-1} =45/100$

Now, let's solve the left part of this function

$
Cos^{-1} =0.45$

Awesome. You will need to use your calculator for this part. Find the value of 0.45 when negative Cosine is used on it.

$Cos^{-1} =0.45$
$63.25631605$

Awesome. Let's round this number to the closest tenth

$63.3$ is the rounded value we have discussed below.

Answer: 63.3 degrees is the unknown measure of the angle

5 0

3 years ago