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tatiyna
2 years ago
10

Find all positive and negative integers b such that x^2+bx+9 factors.

Mathematics
1 answer:
NNADVOKAT [17]2 years ago
3 0

Answer:

4x + b

Step-by-step explanation:

The derivative of a polynomial is the sum of the derivative of it's terms. The derivative of a constant term is 0. The derivative of the ( ax to the n) is ( nax to the n-1 )

2 x 2x(²minus¹ )+ bx(¹minus¹)

multiple 2x2

4x²–¹ + bx¹–¹

subtract 1 from 2

4x¹ + bx¹–¹

subtract 1 from 1

4x¹ + bx⁰

for any term t, t¹ = t

4x + bx⁰

for any term t except 0

t⁰ = 1

4x + b x 1

for any term t, t x 1 = t

and 1t = t

4x + b

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Consider the sequence 8, 6.2, 4.4.2.6. ... The function that describes the sequence is y(x) = 9.8 - 1.8(x). What is f(5)
Keith_Richards [23]
F(5)=9.8-1.8(5)
F(5)=9.8-9
F(5)=9
3 0
2 years ago
I need to do 41,43,45,and 47
SSSSS [86.1K]
41.=30°
43.=60°
45.=60°
47.=30°
7 0
3 years ago
Simplify the expression below: 4+2×[(3+1)×5] (show work please need it for review)
____ [38]

Answer:

44

Step-by-step explanation:

Parenthesis

Exponents

Multiply

Divide

Add

Subtract

First we need to do the work inside the parenthesis that are in the boxed parenthesis

3 + 1 = 4

4 * 5 = 20

Now we multiply

20 * 2 = 40

Now we add

40 + 4 = 44

Best Of Luck,

- I.A. -

5 0
3 years ago
A triangle has an area of 50cm its base is four times the height what is the height?
babunello [35]
So area=1/2 base times height
50=1/2 base times height
multiply both sides by 2
100=base times height
base=4height
100=4height times height
100=4height^2
divide 4
25=height^2
squarer root
5=height

subisute
base=4(5)
base=20

height=5


7 0
3 years ago
For a left-tailed test, the critical value of z so that a hypothesis test would reject the null hypothesis at 1% significance le
mars1129 [50]

Answer:

C.-2.33

Step-by-step explanation:

We are given that

Significance level, \alpha =1%=0.01

We have to find  the critical value of z  for a left-tailed test.

To find the critical value , we will use the z-table at significance level 0.01 for left-tailed test.

By using the z-table at significance level 0.01 for left-tailed test

The critical value of z at  1% significance level for left-tailed test

=-2.33

We get p-value by using z-critical value

P-value=0.0099<0.01

So, hypothesis  test would be reject the null hypothesis at  at 1% significance level.

Hence, the critical value of z=-2.33

Option C is true.

8 0
3 years ago
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