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bekas [8.4K]
2 years ago
5

Please help ASAP!!!!

Mathematics
2 answers:
Mariana [72]2 years ago
8 0

Answer:

D

Step-by-step explanation:

(f+g(x)= -7x2 - 3 + 4x - 6

Simplify like terms

Answer should be -7x^2 + 4x - 9

LuckyWell [14K]2 years ago
5 0

Answer:

D

Step-by-step explanation:

(-7x^2 - 3) + (4x - 6)

-3 - 6 = -9

-7x^2 + 4x - 9

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Solve for x: 3 < x + 3 < 6 45 points.
irinina [24]

Answer:

0 < x < 3

Step-by-step explanation:

3 < x + 3 < 6    (Subtract 3 from all terms)

0 < x < 3    (The third option is the answer)

3 0
3 years ago
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F(x) = -x² - 7x - 5<br>Find f(-5)​
irga5000 [103]

Answer:

5

Step-by-step explanation:

f(-5)=-(-5)^2 - 7(-5) - 5

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f(-5) = -25 +30

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2 years ago
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Which of the following is NOT a requirement of testing a claim about a population proportion using a formal method of hypothesis
Pie

Answer:

A. The lowercase​ symbol, p, represents the probability of getting a test statistic at least as extreme as the one representing sample data and is needed to test the claim.

Step-by-step explanation:

The conditions  required for testing  of a claim about a population proportion using a formal method of hypothesis​ testing are:

1) The sample observations are a simple random sample.

2) The conditions for a binomial distribution are satisfied

3) The conditions np5 and nq5 are both satisfied. i.e n: p≥ 5and q≥ 5

These conditions are given in th options b,c and d.

Option A is not a condition for testing  of a claim about a population proportion using a formal method of hypothesis​ testing.

8 0
2 years ago
Use quadratic regression to find
vovangra [49]

Answer:

y = 6x² -13x -5

Step-by-step explanation:

(1,-12) (2,-7) (5,80)

y = ax² + bx + c

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-7 = 4a + 2b + c    (2)

80 = 25a + 5b + c   (3)

(2)-(1): 3a + b = 5    (4)

(3)-(2): 21a + 3b = 87   (5)

(4)*3:     9a + 3b = 15    (6)

(5)-(6):  12a = 72      a = 6

(4)                             b = -13

(2)                             c = -5

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3 years ago
What is the name of a shape with two parallel sides and four right angles
Sonja [21]
A square has two parallel sides and four right angles.
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2 years ago
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