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3241004551 [841]
3 years ago
5

Given that y = 9 cm and 0 = 23°, work out x rounded to 1 DP. у х 00 PLEASE HELP

Mathematics
1 answer:
lozanna [386]3 years ago
6 0

Answer:

x ≈ 3.5 cm

Step-by-step explanation:

Using the sine ratio in the right triangle

sin23° = \frac{opposite}{hypotenuse} = \frac{x}{y} = \frac{x}{9} ( multiply both sides by 9 )

9 × sin23° = x , then

x ≈ 3.5 cm ( to 1 dec. place )

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ozzi
If we take the equation and multiply out the left side, we get....

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4 0
3 years ago
For the functions f(x)=9x2+8x+2 and g(x)=4x2, find (f+g)(x) and (f+g)(−2)
ratelena [41]

Answer:

<h2>hey I'm I'm not sure but I think that the answer is 3</h2>
8 0
3 years ago
Please help me i need to finish this i’m tired (please use grid if you can) asap!!!
jasenka [17]

The linear equation is y = 4x - 4

And the graph of the linear equation can be seen in the image below.

<h3>How to graph the last line?</h3>

It seems that you already are good at graphing, so I will try to explain how to find the equation more in detail.

Remember that a general linear equation is written as:

y = a*x + b

Where a is the slope and b is the y-intercept.

In this case, we know that the y-intercept is -4, then b = -4, replacing that we get:

y = a*x - 4

Now we also can see that this line passes through the point (2, 4), this means that if we evaluate in x = 2, the outcome should be y = 4, replacing that we get:

4 = a*2  - 4

4 + 4 = a*2

8 = a*2

8/2 = a = 4

Then the slope is 4, and the linear equation is:

y = 4x - 4

The graph is below.

If you want to learn more about linear functions:

brainly.com/question/4025726

#SPJ1

8 0
1 year ago
What is the value of w?<br><br> 2/5 (w+5) = 4/5
alex41 [277]

Answer:

W = -3

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Pls help this homework is due tomorrow and I’m so confused thank you for taking your Time x
olchik [2.2K]

Answer:

a)  x= 75

b) 105 is the same angle as angle B, I subtracted 180 by 105

180-105= 75

4 0
3 years ago
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