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frosja888 [35]
3 years ago
15

Let g(x)=x^2+bx+11. The point (-1,8) lies on graph of g. Find value of b.​

Mathematics
1 answer:
ikadub [295]3 years ago
6 0

Answer:

b=4

Step-by-step explanation:

g(x)=x^2+bx+11

When x = -1  g(x) = 8

8 = (-1)^2 +b(-1) +11

8 = 1 -b+11

Combine terms

8 = 12-b

Subtract 12 from each side

8-12 = 12-b-12

-4 = -b

Multiply by -1

4 = b

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Please help me with this question!!!!!
Naddika [18.5K]

Answer:

7/25

Step-by-step explanation:

θ lies in quadrant ii

so 2θ lies in quadrant iv

csc θ=5/3

sin θ=3/5 (sin θ=1/csc θ)

[cos(α+β)=cosαcosβ-sinαsinβ]

cos (2θ)=cos(θ+θ)=cos θ cos θ-sin θ sin θ=cos² θ-sin ²θ=1-sin²θ-sin²θ=1-2sin²θ

=1-2 (3/5)²

=1-2(9/25)

=1-18/25

=(25-18)/25

=7/25

5 0
3 years ago
If a tower casts a shadow 11 feet long the distance from the top of the tower to the end of the shadow is 61 feet .. How many fe
Svetach [21]
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8 0
3 years ago
What is the surface area of this rectangular prism?
dybincka [34]

Answer:

256 ft²

Step-by-step explanation:

4 lateral faces + 2 bases

The total area

=2 \times (12 \times 4) + 2 \times (12 \times 5) + 2 \times (5 \times 4)

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3 0
3 years ago
Is 65 and 66 numbers
svlad2 [7]

Answer: yes?

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
Can you help me !!!!!
kari74 [83]

Answer:


Step-by-step explanation:

Okay, so hopefully my crude diagram helps you visualize the problem. When in doubt, always draw a picture.

All I did was graph the points and formed a line.

Slope: It's going to be 0 because it doesn't change at all (no different y values)

(y2-y1)/(x2-x1) = (6-6) / (4-2) = 0/2 = 0


Y intercept is where the line crosses the y axis- this is also where x=0 (find it in your chart!)

Equation is y= 6; I don't know how to explain this, but trust me, it's right

8 0
3 years ago
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