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Naddika [18.5K]
3 years ago
8

What one is it?? Because I am having a hard time figuring it out. If anyone could help it would mean a lot, thanks

Mathematics
1 answer:
hichkok12 [17]3 years ago
5 0

Answer:

the first one

Step-by-step explanation:

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Whoever is good at math, please help!
otez555 [7]

Answer:

I think it is 37.5°.

Step-by-step explanation:

6 0
3 years ago
Pls help<br> Find the measurements of those
ch4aika [34]

Answer:

i think C

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8 0
2 years ago
The length of the room is 2½ times the breadth. The perimeter of the room is 70 m. What are the length and breadth of the room?
irakobra [83]

Answer:

length=25m

breadth=10m

Step-by-step explanation:

2.5units+2.5units+1unit+1unit=7units

70/7=10

length=10x2.5=25

breadth=10

(sorryy im not really sure but i hope it helps :D)

3 0
3 years ago
Read 2 more answers
Given ​ f(x) = x^2 + 14x + 40 ​. Enter the quadratic function in vertex form in the box. f(x)=
finlep [7]
Recall that the vertex form of a quadratic function (or parabolic function) is equal to

f(x) = a(x - h)^{2} + k

Now, given that we have f(x) = x² + 14x + 40, to express f into its vertex form, we must first fill in the expression to form a perfect square.

One concept that we must remember when completing the square is that

(a + b)² = a² + 2ab + b²

So, to complete the square for (x² + 14x + ____), we have 2ab = 14 where a = 1. Thus, b = 14/2 = 7. Hence, the last term of the perfect square must equal to 7² = 49.

So, going back to the function, we have

f(x) = (x^{2} + 14x + 40 + 0)
f(x) = (x^{2} + 14x + 40 + 49 - 49)
f(x) = (x^{2} + 14x + 49) + 40 - 49
f(x) = (x + 7)^{2} - 9

Thus, we have derived the vertex form of the function. 

Answer: f(x) = (x + 7)² - 9
6 0
3 years ago
Read 2 more answers
Use the unit circle to find the value of tan (225 degrees
BARSIC [14]

if you don't have a Unit Circle, this is a good time to get one, you'd need it, you can find many online.

Check the picture below.

3 0
3 years ago
Read 2 more answers
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