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1 year ago

Which of the following is an example of a quadratic equation?

Mathematics

1 answer:

WARRIOR [948]1 year ago

8 0

Answer: B

Step-by-step explanation:

A quadratic equation has degree 2.

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Daniel wanted to know his approximate score on the final exam for his mathematics class. His professor hinted that his score was

Marizza181 [45]

Answer:

The raw score for his exam grade is 99.69.

Step-by-step explanation:

Given : The professor announced that the mean for the class final exam was 88 with a standard deviation of 7. Given Daniel's z score of 1.67.

To find : What is the raw score for his exam grade?

Solution :

The formula use to find the z-score is

$z=\dfrac{x-\mu}{\sigma}$

Where, z=1.67 is the z-score

$\mu=88$ is the means

$\sigma=7$ is the standard deviation

x is the raw score for his exam grade

Substitute the values,

$1.67=\dfrac{x-88}{7}$

$1.67\times 7=x-88$

$11.69=x-88$

$x=88+11.69$

$x=99.69$

Therefore, the raw score for his exam grade is 99.69.

7 0

3 years ago

The value of a bicycle was recorded over a period of five years. Based on how the plot of the residuals

slamgirl [31]

Answer =yes, the residuals would tend to be one sided

8 0

3 years ago

Mathematical phrases

Reil [10]

Answer:

Sum

Difference

product

square root

Quotient

7 0

2 years ago

Read 2 more answers

What is 2x+8y=12 in slope intercept form <br>as well as x-2y=0 in slope intercept form

earnstyle [38]

$the \ slope \ intercept \ form \ is : \\ \\ y= mx +b \\ \\ 2x+8y=12 \ \ |-2x \\ \\8y=-2x+12\ \ /:8\\ \\y=-\frac{2}{8}x+\frac{12}{8}$

$y=-\frac{1}{4}x+\frac{3}{4}\\ \\ m=-\frac{1}{4}$

$x-2y=0 \ \ | -x \\ \\-2y=-x \ \ /:(-2)\\ \\y=\frac{1}{2}x \\ \\ m= \frac{1}{2}$

8 0

3 years ago

Read 2 more answers

Jimmy has 50 candies. He ate 24. How much does he have left?

Alex777 [14]

Answer:

26 candies.

Step-by-step explanation:

Jimmy will have 26 candies left, because 50 - 24 = 26. Or, in other words, 24 subtracted (or ate) from 50 means 26 candies left.

Hope this helped!

8 0

3 years ago