The grades on a geometry midterm at Oak have a mean of u = 74 and a
standard deviation of o = 4.0.
Nadia scored 70 on the exam.
Find the z-score for Nadia's exam grade. Round to two decimal places.

Answers

Answer 1

Answer:

-1.00

Step-by-step explanation:

khan


Related Questions

Deacon has a Best Buy gift card with a $75 balance. He bought new headphones that cost $9.99 each. After his purchase, his gift card balance was $15.06. Write and solve an equation to find how many headphones, x, he bought.

Answers

Answer:

6 pairs of headphones

Step-by-step explanation:

$75.00 Balance

75 - 15.06 = 59.94

59.94/9.99 = 6

x = 6

Hope this helps :)

What is the value of the expression 3^2 +5^3-2^5?
A. 14
B. 34
C. 102
D. 166

Answers

C. 102 is the answer

Answer:

102

Step-by-step explanation:

3^2 +5^3-2^5

9+125-32

9+93

102

So 102 is the answer

find the exact length of the third side .

Answers

Answer:

a=9.8

Step-by-step explanation:

a(2)+2(2)=10(2)

2×2=4 10×10=100

subtract 4 from 4 and 100

a(2)=9.6

use the two buttons on the scientific caculator. Click 2nd, then click x2(close to bottom left)

you will get a bunch of numbers only put down the first 3. (9.79)

ROUND THIS

9.79=9.8

a=9.8

Evaluate the following expression if x = 4 and y =2

2x + 3y

Answers

Answer:56

Step-by-step explanation: because if you add the x to the two you get 24 and if you add the y to the three you get 32

Answer: 14

2x + 3y
2(4) + 3(2)
8 + 6
= 14

hope this helps :)

90 POINTS help ASAP.

What is the solution of x=2+ VX-2?
x = 2
O x= 3
x = 2 or x = 3
no solution

Answers

Answer:

x=2

Step-by-step explanation:

2-2=0

square root of 0 is 0

0+2=2

and 2=2 so its 2

The answer is, X = 3, 2

I hope it helps.

help now asap please ​

Answers

Answer: they are called constrains

Answer:

Called constraints

Step-by-step explanation:

7
Which table describes a relationship that can be represented in the form y = ax?

Answers

Answer:

The last one.

Step-by-step explanation:

The last table because y = 5x   ( a = 5):

0 = 0*5

25 = 5*5

75 = 15*5

250 = 50 *5

The proportion of Americans who have frequent migraines is 15.2% according to the CDC. An acupuncturist claims that her treatment can reduce this figure significantly. A random sample of 189 Americans is administered the acupuncturists treatment and 28 report experiencing migraines.

Answers

Answer:

Look It Up

Step-by-step explanation:

Jessie filled a container of water with 200 milliliters. Zaria filled a different container with 400 milliliters. There are 1000 milliters in a liter. How much more water did Zaria have, in liters?

Answers

Answer: zaria only had 20000 more that jessie in liters

Step-by-step explanation:

200 mill would be 20000

400 mill would be 40000

Find the slope containing the pair of points. (3,-3) (9,-1)

Answers

Answer:

1/3

Step-by-step explanation:

-3 - -1= -2

3-9 = -6

-2/-6 = 2/6 = 1/3

Answer: 1/3

Step-by-step explanation:

slope = change in y / change in x

= (-3 - -1) / (3 - 9)

= -2 / -6

= 2/6

=1/3

On December 13, 2007, one South African rand was worth 0.15 U.S. dollars.

(a) On that date, how many rand was 23.39 dollars worth? Round your answer to the nearest hundredth of a rand.

(b) On that date, how many dollars was 175.89 rand worth? Round your answer to the nearest hundredth of a dollar.

Answers

Answer:  

153593.3333 rounded is 153593.3300

then part b

1172.60 - 1172.60

Step-by-step explanation:

Factor the quadratic expression p^2 - 5p - 14*

Answers

Answer:

(p+2)(p-7)

Step-by-step explanation:

Which graph represents the compound inequality?
n<-2 or n > 4

Answers

Yes the answer is C. -2 to the left with open circle and 4 to the right with closed circle

10-3v-1)=5(9-v) solve for v please show work

Answers

Answer:

v=18

Step-by-step explanation:

10-3v-1=5(9-v)

first open the bracket

10-3v-1=45-5v

5v-3v=45-9

2v=36

v=18

Find the equation of the line with​ y-intercept 5 and slope 5/9

Answers

Answer:

y=5/9x+5

Step-by-step explanation:

The formula is y=mx+b with m being the slope and b being the y intercept so just plug in the values.

The equation of a straight line can be written by the equation y = mx + b, where m is the slope and b is the y-intercept.

Substitute in your values:

y = 5/9x + 5

Therefore the equation of your line with the information given would be:

y = 5/9x + 5

find the ratio a:b if given a+b=4a

Answers

Answer:

a:b = 1/3 = 0.333

Step-by-step explanation:

a+b=4a

a/b +b/b =4a/b

-3a/b = -1

a:b = 1/3 = 0.333

Four-fifths x minus StartFraction 1 Over 10 Endfraction = StartFraction 3 Over 10 EndFraction

Answers

Answer:

hi heres the answer for x

x= 1/2

x=0.5

Answer:

1/2 or 2.5. that is the answer that i got and i got it right by the way

A 2-pound package of hamburger costs $7.00, and you pay
$10.50 for a 3-pound package of hamburger. Use a double
number line to complete the table.
3
4
5
Weight (lb) 2
Cost ($) 7.00
14.00
17.50
What is the unit rate in this relationship?

Answers

Answer:

14. 00 $

Step-by-step explanation:DIVIDE – 3 ½ ÷ ¼ = 14 hamburgers

Answer:

$14.00

Step-by-step explanation:

DIVIDE –

3 ½ ÷ ¼

= 14

How are the statements "I see what I eat" and "I eat
what I see" different?
They both describe two actions, seeing food and eating
the food.
Which statement correctly says that if you see food,
then you eat it?
I see what I eat
I eat what I see

Answers

Answer:

I eat what I see.

Step-by-step explanation:

Answer:

I see what i eat

Step-by-step explanation:

if i see what i eat you would look at it befor seeing it exaple i see the hamburger then i see it

If i eat what i see i would eat what i see. example i eat the hamburger then i look at it

that is why i see what i eat is corrct

Restate 15 + (-3) by applying the commutative property.

Answers

Answer:

3m = $30

Step-by-step explanation:

Hope this helps

Which expression means 5 less than the product of 9 and a number w

Answers

Answer:

9 x w = x

x - 5= y

Step-by-step explanation:

9 x w = x                                  w = a variable that equals the second multiplier.

                                                x = a variable that equals the product of 9 and x.

x - 5 = y                                     y = a variable that  equals the end value.

Each side of a 7-sided shape is 3 feet long. What is the perimeter of this shape?

Answers

Answer:

21 feet

Step-by-step explanation:

You could either do

3 + 3 + 3 + 3 + 3 + 3 + 3 = 21

or

3 x 7 = 21

Answer:

21ft

Step-by-step explanation:

3ft times 7 is 21

What the answer to this?

Answers

Answer:

Angle 5 is also 130 degrees

Step-by-step explanation:

Corresponding angles

Im not so sure about this. I need help making a proof that is 9 steps long. (See image)

Answers

Step-by-step explanation:

Not entirely sure, but I believe something like this:

∠1 + ∠2 = 180° since they are a linear pair;

Since ∠1  = ∠2, we can say:

∠1 + ∠1 = 180°

2(∠1) = 180°

∠1 = 90°

And since:

∠1 = ∠2

∠2 = 90°

So the angle between t and s is 90°;

An angle of 90° means t and s are perpendicular (⊥)

If g(x) = -2x - 2, find g(-2x).​

Answers

Answer:

2

Step-by-step explanation:

You would replace the x with -2x so you would end up with -2×-2 and that is 4 then minus 2 is 2.

- A car is originally worth $34,450. It takes 13 years for this car to totally depreciate. How long will it take for the car to be worth half its value

Answers

Answer:

If the car depreciates each year by the same amount, it will depreciate yearly by $2650 dollars

Step-by-step explanation:

$12 saved after 2 weeks ; $36 saved after 6 weeks

Answers

That is correct. Were you meant to link a picture?

Answer:

6$ a week or 12$ Every 2 weeks

Step-by-step explanation:

Ryan needs to drive 25 miles to work. So far, he has driven 4.2 miles. How many more miles must he drive?

Answers

[tex]{\underline{\orange{\textsf{\textbf{ Answer : }}}}}[/tex]

➡ He must drive 20.8 miles now.

Answer:

21.8 Miles

Step-by-step explanation:

If you are to subtract 4.2 from 25 it equals to 21.8 miles. And to Check your work add 21.8 miles and 4.2 miles it equals 25 miles.

Have I nice day! UwU

The half-life of a radioactive substance is 200 years. There are 8000 grams of the substance initially. How many grams of the substance are left after 300 years?
a) 5039.684g
b) 2828.427g
c) 3000g
d) 2000g

Answers

Answer:

There are 2,000 grams left after 300 years.

Step-by-step explanation:

Giving the following information:

The half-life of a radioactive substance is 200 years. There are 8000 grams of the substance initially.

First, we need to calculate the reduction of the substance each year:

Yearly reduction= 8,000/400= 20 grams per year

Now, for 300 years:

300 year reduction= 20*300= 6,000

There are 2,000 grams left after 300 years.

Use the equation below to find y, if m=8, x=4, and b=3.
y=mx+b
y =
Ú
Х
?

Answers

Answer:

y = 35

Step-by-step explanation:

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