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irakobra [83]
2 years ago
10

Does anyone know this?

Mathematics
2 answers:
olga_2 [115]2 years ago
6 0

Answer:

f(9)= -59

Step-by-step explanation:

First, put 9 into x; which gives you...

f(9)= (-9)^2+9+13

f(9)= -81+9+13

f(9)= -59

tresset_1 [31]2 years ago
4 0

Answer:

f(x) = -x^2 + x + 13 find f(9) = -59

Hope this helps :)

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Tom and Jerry went out for dinner. They ordered a nice meal and their bill was $300 . They also paid 15% tax on there bill. What
ELEN [110]
45, right? 300 plus the 15 percent which is .15, so we multiply that to 300 and we get 45. So in total they paid 345. Was Jerry Tom's snack?
7 0
3 years ago
Find the value of x to the power of 2 when x = 5
Minchanka [31]

Answer:

32

Step-by-step explanation:

2^5=?

2x2=4x2=8x2=16x2=32

3 0
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VikaD [51]

Answer:

A

Step-by-step explanation:

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7 0
2 years ago
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Question 2 help please
m_a_m_a [10]

Answer:

The measure of the vertex angle is 94 degrees ⇒ A

Step-by-step explanation:

  • In any triangle, the sum of the measures of its interior angle is 180°
  • In the isosceles triangle, the two base angles are equal in measures

∵ In an isosceles triangle, the measure of the base angle = (2x + 5)

∵ The base angles of the isosceles triangles are equal in measures

∴ The measures of the base angles are (2x + 5), (2x + 5)

∵ The measure of the vertex angle = (5x - 1)

∵ The sum of the measure of the three angles = 180°

∴ (2x + 5) + (2x + 5) + (5x - 1) = 180

→ Add the like terms in the left side

∵ (2x + 2x + 5x) + (5 + 5 + -1) = 180

∴ 9x + 9 = 180

→ Subtract 9 from both sides

∴ 9x + 9 - 9 = 180 - 9

∴ 9x = 171

→ Divide both sides by 9 to find x

∴ x = 19

→ Substitute the value of x in the measure of the vertex angle to find it

∵ The measure of the vertex angle = 5x - 1

∴ The measure of the vertex angle = 5(19) - 1

∴ The measure of the vertex angle = 95 - 1

∴ The measure of the vertex angle = 94°

∴ The measure of the vertex angle is 94 degrees

6 0
3 years ago
Slope mystery message answer
Oksanka [162]

Answer:

I can't answer this unless you give more information to the question.

4 0
3 years ago
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