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Lubov Fominskaja [6]
2 years ago
15

Show work!!!!!!!!!!!!!!

Mathematics
1 answer:
kipiarov [429]2 years ago
5 0

Answer:

147

Step-by-step explanation:

you just add both angles

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What is the quotient 10 ÷ (-5)?<br> A) -2 <br> B) 2 <br> C) -12<br> D) 12
Degger [83]
10 ÷(-5)= -2

The answer is A
7 0
3 years ago
If the lengths of two sides of a triangle are 3 and 12, which could be the length of the third side?
Ierofanga [76]

Answer: 1st is if it’s 2 legs second is if it’s a leg and hypotenuse

Step-by-step explanation:

6 0
2 years ago
Isaiah decides to launch a model rocket to demonstrate parabolic motion. Given x stands for time and y stands for height in feet
mina [271]

The parabolic motion is an illustration of a quadratic function

The equation that models that path of the rocket is y = -16/31x^2 + 256/31x - 880/31

<h3>How to model the function?</h3>

Given that:

x stands for time and y stands for height in feet

So, we have the following coordinate points

(x,y) = (5,0), (11,0) and (10,80)

A parabolic motion is represented as:

y =ax^2 + bx + c

At (5,0), we have:

25a + 5b + c = 0

c= -25a - 5b

At (11,0), we have:

121a + 11b + c = 0

Substitute c= -25a - 5b

121a + 11b -25a - 5b = 0

Simpify

96a + 6b = 0

At (10,80), we have:

100a + 10b + c = 80

Substitute c= -25a - 5b

100a + 10b - 25a -5b = 80

75a -5b = 80

Divide through by 5

15a -b = 16

Make b the subject

b = 15a + 16

Substitute b = 15a + 16 in 96a + 6b = 0

96a + 6(15a + 16) = 0

Expand

96a + 90a + 96 = 0

This gives

186a = -96

Solve for a

a = -16/31

Recall that:

b = 15a + 16

So, we have:

b = -15 * 16/31 + 16

b =-240/31 + 16

Take LCM

b =(-240 + 31 * 16)/31

[tex]b =256/31

Also, we have:

c= -25a - 5b

This gives

c= 25*16/31 - 5 * 256/31

Take LCM

c= -880/31

Recall that:

y =ax^2 + bx + c

This gives

y = -16/31x^2 + 256/31x - 880/31

Hence, the equation that models that path of the rocket is y = -16/31x^2 + 256/31x - 880/31

Read more about parabolic motion at:

brainly.com/question/1130127

7 0
2 years ago
Please help t - 76 = 0 t = ______
skad [1K]
T - 76 = 0

If you switch it around, it becomes:

0 + 76 = t

0 + 76 = 76

t = 76

~Hope this helped~
6 0
3 years ago
$13.45 on 5 pounds of cheese. How much would it cost to buy 2 pounds of cheese?
raketka [301]
It would cost 5.38 to buy 2 pounds of cheese. 
7 0
3 years ago
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