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3 years ago

F(x)=x^2+14x+40 Enter the quadratic function in vertex form

Mathematics

1 answer:

Mademuasel [1]3 years ago

4 0

Easy very easy
y=(x+7)^2-9

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A horticulturist working for a large plant nursery is conducting experiments on the growth rate of a new shrub. Based on previou

Jet001 [13]

Answer:

Test statistic = - 3.354

We reject H0 and conclude that the growth rate of the new shrub is less than 3cm per week.

Step-by-step explanation:

H0 : μ = 3

H1 : μ < 3

The test statistic = (xbar - μ) / (s/ √n)

Xbar = 1.50

μ = 3

s = 3

n = 45

Test statistic = (1.5 - 3) / (3/ √45)

Test statistic = - 1.5 / 0.4472135

Test statistic = - 3.354

Pvalue, using the Pvalue from Z score calculator :

Pvalue = 0.00039826

α = 0.05

Pvalue < α ; We reject H0 and conclude that the growth rate of the new shrub is less than 3cm per week.

8 0

3 years ago

17.5% of 120 can be worked out using the following method find 10% of 120=12 then 5% of 120=6 then 2.5% of 120=3. Adding 17.5% o

Oliga [24]

Answer:

17.5% of 360 = 63

Step-by-step explanation:

We are given a process of finding 17.5% of 120. Following the same process we have to determine the 17.5% of 360.

17.5% can be break down as 10% + 5% + 2.5%

Thus,

STEP 1 : Find 10% of 360 , we get,

$\frac{10}{100} \times 360=36$

STEP 2 : find 5% of 360, we get,

$\frac{5}{100} \times 360=18$

STEP 3: find 2.5% of 360 , we get,

$\frac{2.5}{100} \times 360=9$

STEP 4: 17.5% of 360 = 10% of 360 + 5% of 360 + 2.5% of 360

⇒ 17.5% of 360 = 36 + 18 + 9

⇒ 17.5% of 360 = 63

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3 years ago

Which of the following equations has only one solution?

Daniel [21]

X^2-6x+9=0 has only one solution
Hope this helps

4 0

3 years ago

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Instant Oats cost $4.89 for 10 servings. What is the cost per 1 serving

tester [92]

Look at the attached picture⤴

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3 years ago

What is x in the equation28=8+5x?

mote1985 [20]

Answer:

Step-by-step explanation:

28=8+5x

20=5x

four is your answer

5 0

4 years ago

F(x)=x^2+14x+40 ​ Enter the quadratic function in vertex form

F(x)=x^2+14x+40 Enter the quadratic function in vertex form