All categories

2 years ago

Look at this graph: What are the coordinates of the vertex?

Mathematics

2 answers:

ZanzabumX [31]2 years ago

7 0

Answer:

The vertex is located at (-1,-1)

asambeis [7]2 years ago

5 0

Answer:

-1, -1

Step-by-step explanation:

You might be interested in

A professor at a local university noted that the exam grades of her students were normally distributed with a mean of 73 and a s

Umnica [9.8K]

Answer:

88.51 is the minimum score needed to receive a grade of A.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 73

Standard Deviation, σ = 11

We are given that the distribution of exam grades is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

We have to find the value of x such that the probability is 0.0793.

$P( X \geq x) = P( z \geq \displaystyle\frac{x - 73}{11})=0.0793$

$= 1 -P( z \leq \displaystyle\frac{x - 73}{11})=0.0793$

$=P( z \leq \displaystyle\frac{x - 73}{11})=0.9207$

Calculation the value from standard normal z table, we have,

$P(z \leq 1.410) = 0.9207$

$\displaystyle\frac{x - 73}{11} = 1.410\\x =88.51$

Hence, 88.51 is the minimum score needed to receive a grade of A.

3 0

2 years ago

A car travels 480 miles on 15 gallons of gasoline. How many miles does the car travel per gallon?

ElenaW [278]

You take 480 and divide it by 15, because it says per gallon. so then if the car goes 480 miles with 15 gallons, you have to figure out how to find per gallon. you divide 480/15 and your answer is 32

5 0

2 years ago

Read 2 more answers

Find the product of the expression. (6qr2) • (2qr)

zaharov [31]

here it is my answer

hope it is right

5 0

3 years ago

Elliot and Katy both bought the same lunchbox for $6. Elliot lives in Oklahoma and pays 4.5% in sales tax, while Katy lives in S

olasank [31]

The answer is <span>A.$0.09!

</span>

3 0

3 years ago

Read 2 more answers

What is the area of this figure?

Paraphin [41]

Area of square
= 7x7
=49
Area of triangle
=0.5x 7x12
=42
Total area of figure
=49+42
=91

Hence, answer is D

6 0

3 years ago