What is the value of y?130"Answer:

Hi I’m new can someone help me on this (PLZ NO LINKS)

Ymorist [56]

Complementary angles add up to 90 degrees.
So to find A you would need to add A and B together and equal it to 90 (3x+25+5x-7=90)
Combine like terms together (8x+18=90)
Subtract 18 from night sides (8x=72)
Divide by 8 on both sides (x=9)
Then to find A substitute x into its equation (3(9)+25)=(27+25)=52

A=52 I think

7 0

3 years ago

Average sales for an online textbook distributor were $67.63 per customer per purchase. Assume the sales are normally distribute

Fynjy0 [20]

Answer:

(a)P(x>85.55)=0.02275

(b) $P(x$

Step-by-step explanation:

We are given that

Average sales for an online textbook distributor per customer per purchase

, $\mu=$ $67.63

Standard deviation of the amount spent on textbooks, $\sigma=$ $8.96

(a) We have to find probability for a randomly selected customer spent more than $85.55 per purchase.

$P(x>85.55)=P(\frac{x-\mu}{\sigma}>\frac{85.55-67.63}{8.96})$

= $P(Z>2)$

= $1-P(Z\leq 2)$

= $1-0.97725$

P(x>85.55)=0.02275

(b)We have to find probability for a randomly selected customer spent less than $76.59 per purchase

$P(x$

$P(x$

6 0

3 years ago

This is uhh due by 8 tommorow mornin please help me

Ira Lisetskai [31]

1 Simplify

1

3

x

3

1

x to

x

3

x

.

x

3

+

5

≤

−

4

3

x

+5≤−4

2 Subtract

5

5 from both sides.

x

3

≤

−

4

−

5

3

x

≤−4−5

3 Simplify

−

4

−

5

−4−5 to

−

9

−9.

x

3

≤

−

9

3

x

≤−9

4 Multiply both sides by

3

3.

x

≤

−

9

×

3

x≤−9×3

5 Simplify

9

×

3

9×3 to

27

27.

x

≤

−

27

x≤−27

I hope this help you

6 0

3 years ago

Which expression uses the associative property to make it easier to evaluate 14(3/2 . 1/4)

DaniilM [7]

Answer:

An easy way to do this problem is to follow PEMDAS if you don't know what that is it is P=() E I forgot M=Mutliply D=Division A=addition S=Sabtraction

But to do this problem first do the problem in the (3/2. 1/4) I hope this helps please reward brainlist.

8 0

3 years ago

Becky wants to buy some fish for her aquarium she has $20 to spend and the fish cost $2.50 each write and solve an inequality to

STatiana [176]

2.50x must be equal or less than 20

x=8

8 fish

8 0

4 years ago