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2 years ago

Complete the square to make a perfect square trinomial. Then, write the result as a binomial squared.

Mathematics

1 answer:

neonofarm [45]2 years ago

5 0

Answer:

Step-by-step explanation:

c2+2c+4

(c+2)^2

^ is the exponent

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The heights of a certain type of tree are approximately normally distributed with a mean height p = 5 ft and a standard

arsen [322]

Answer:

A tree with a height of 6.2 ft is 3 standard deviations above the mean

Step-by-step explanation:

⇒ $1^s^t$ statement: A tree with a height of 5.4 ft is 1 standard deviation below the mean(FALSE)

an X value is found Z standard deviations from the mean mu if:

$\frac{X-\mu}{\sigma} = Z$

In this case we have: $\mu=5\ ft$ $\sigma=0.4\ ft$

We have four different values of X and we must calculate the Z-score for each

For X =5.4\ ft

$Z=\frac{X-\mu}{\sigma}\\Z=\frac{5.4-5}{0.4}=1$

Therefore, A tree with a height of 5.4 ft is 1 standard deviation above the mean.

⇒ $2^n^d$ statement:A tree with a height of 4.6 ft is 1 standard deviation above the mean. (FALSE)

For X =4.6 ft

$Z=\frac{X-\mu}{\sigma}\\Z=\frac{4.6-5}{0.4}=-1$

Therefore, a tree with a height of 4.6 ft is 1 standard deviation below the mean .

⇒ $3^r^d$ statement:A tree with a height of 5.8 ft is 2.5 standard deviations above the mean (FALSE)

For X =5.8 ft

$Z=\frac{X-\mu}{\sigma}\\Z=\frac{5.8-5}{0.4}=2$

Therefore, a tree with a height of 5.8 ft is 2 standard deviation above the mean.

⇒ $4^t^h$ statement:A tree with a height of 6.2 ft is 3 standard deviations above the mean. (TRUE)

For X =6.2\ ft

$Z=\frac{X-\mu}{\sigma}\\Z=\frac{6.2-5}{0.4}=3$

Therefore, a tree with a height of 6.2 ft is 3 standard deviations above the mean.

6 0

3 years ago

For f(x) = -4x+2 find f(x) when x = -1 A. -2. B. 6 C. -4 D. 2

djverab [1.8K]

Answer:

The answer is letter B which is 6.

f(x) = -4x+2

f(x)=-4(-1)+2

f(x)=4+2

f(x)=6

5 0

2 years ago

Fill in the table.<br>Input Values = 0, 2,4<br>Rule: subtract 3<br>Input<br>Output

jarptica [38.1K]

Answer:

Input: 0, 2, 4

Output: 3, -1, 1

Step-by-step explanation:

0-3= -3

2-3= -1

4-3= 1

3 0

3 years ago

Please help me with this problem please?

Alex

Answer:

Lily would spend on each type of activity would be 222 minutes.

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers

Which is the best way to solve the equation x2 = n?

Gnom [1K]

$n$ - no solutions in real numbers

$n=0 \Rightarrow x=0$

$n>0 \Rightarrow x=\sqrt n \vee x=-\sqrt n$

7 0

2 years ago