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miss Akunina [59]

3 years ago

11

Using the completing-the-square method, find the vertex of the function f(x) = 5x2 + 10x + 8 and indicate whether it is a minimu

m or a maximum and at what point. (2 points)

1 answer:

jekas [21]3 years ago

5 0

The vertex of the function f(x) = 5x² + 10x + 8 is (-1, 3). the function has a minimum value at 3.

hope this helps, God bless!

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How many 50 cents coins are there in $10:50

larisa86 [58]

Question:- how many 50 cents coins are there in $10.50

Answer:-

Total amount-> $ 10.50

So amount in cents

$ 1 is equal to 100 cents

$10.50 is equal to 1050 cents

According to the question

$Number \: of \: the \: 50 \: cents= \frac{ Total \: cents}{ 50 \: cents } \\$

$Number \: of \: the \: 50 \: cents = \frac{1050}{50} \\ Number \: of \: the \: 50 \: cents = 21 \:$

6 0

2 years ago

(CO 4) In a sample of 15 stuffed animals, you find that they weigh an average of 8.56 ounces with a standard deviation of 0.09 o

Masja [62]

Answer:

92% Confidence Interval = [8.515, 8.605]

Step-by-step explanation:

The number of samples given is 15,this less than 30, hence, we use the t score confidence Interval

= Mean ± t score × Standard deviation/√n

Mean = 8.56 ounces

Standard deviation = 0.09 ounces

n = 15

We find the degrees of freedom = n - 1

= 15 - 1 = 14

Using the T score table

T score for 92% confidence interval with degrees of freedom 14

= 1.8875

Hence:

Confidence Interval =

= 8.56 ± 1.8875 × 0.09/√15

= 8.56 ± 0.0454010035

Confidence Interval

8.56 - 0.0454010035

= 8.5145989965

≈ 8.515

8.56 + 0.0454010035

= 8.6054010035

≈ 8.605

92% Confidence Interval = [8.515, 8.605]

7 0

2 years ago

What composition of rigid motions maps PQR to XZY?

Lapatulllka [165]

Answer:

Step-by-step explanation:

translated 8 units to the right and 2 units up then flipped

7 0

3 years ago

Identify PR rounded to the nearest tenth. Please help asap!!

kicyunya [14]

Trigonometric Functions:

$S\frac{O}{H} C\frac{A}{H} T\frac{O}{A}$

$Sine\frac{Opposite}{Hypotenuse} Cos\frac{Adjacent}{Hypotenuse} Tan\frac{Opposite}{Adjacent}$

You have the angle and the adjacent. You need to find the hypotenuse (PR). Therefore, you use cos.

$Cos(26)=\frac{13}{H}$

Rearrange the formula to find H (PR):

$H = \frac{13}{Cos(26)}$

14.463 ~ 14.5

<h2>14.5°</h2>

5 0

2 years ago

What is the <img src="https://tex.z-dn.net/?f=%5Csqrt%7B10%7D" id="TexFormula1" title="\sqrt{10}" alt="\sqrt{10}" align="absmidd

morpeh [17]

6.32455532 is what my calculator says.

4 0

2 years ago