Explain answer !!

( WILL GIVE BRAINLEST)

Answer:find the solution to the system of equations below.start by adding the equation

{-2x+2y=-8

{2x+y=5

Step-by-step explanation:The given system of equation are:

1----  y= x -4

2----- y=4 x+2

Equation (1) - Equation (2)

→0= x -4 - (4 x+2)

→0=  -3 x -6-----[Adding and subtracting like terms]

Adding 3 x on both sides

→3 x= -6

Dividing by 3 on both sides

→x = -2

→Substituting the value of x in equation 1, we get

y= -2 -4

y =-6

→Solution set =(x,y)=(-2, -6)

Don't used the graph to find the solution.

Consider a 95 percent confidence interval constructed for the difference between two population
proportions PR and Ps. The interval for PR - Ps is given as (-0.05, 0.15). Which of the following is an
appropriate interpretation of the confidence level?
In repeated random sampling with the same sample size, êr - Ộs will be contained in
the interval approximately 95 percent of the time.
In repeated random sampling with the same sample size, PR will be contained in the
interval approximately 95 percent of the time.
In repeated random sampling with the same sample size, Ôr will be contained in the
interval approximately 95 percent of the time.
The probability is 0.95 that the difference in the sample proportions PR - Ổs is between
-0.05 and 0.15
In repeated random sampling with the same sample size, approximately 95 percent of the
intervals will capture the difference in population proportions, PR - Ps.

5) A book is sold at $152.50 and a discount of 9% is given for students.
Find the cost of the book.
13

A, B, and C are polynomials, where: A = 3x – 4 B = x + 7 C = x2 + 2 What is A2 – (B + C) in simplest form?
8x2 – 25x + 7
8x2– 25x + 11
10x2 – 25x + 7
10x2 – 25x + 11

Please help!!
“ which of the following is equivalent to 4/9 “

Plsssss help plssss ASAP plssss I beg u plsssssssssssssssssssss it’s so hard :((((
Which situation is a true statement about payment options?

CLEAR CHECK

A) An advantage of online banking is that you do not need to keep detailed records when paying bills.

B) Paying with a credit card means the amount you spend will be deducted from your checking account.

C) Keeping track of your debit card transactions will help avoid charges resulting from insufficient funds.

D) To avoid paying interest on your credit card purchases, pay only part of your balance each month.

I need help please please help

A cylinder is sliced horizontally, parallel
to its base, and vertically. Which of
the following could represent cross
sections of the cylinder?
Circle and triangle
Circle and rectangle
Circle and hexagon
Circle and sphere

-8h+z/7
Use z=21 and h=4

#17. The height, H metres, of a certain species of Fir
tree can be estimated from the formula.
h= 35d , where d metres is the diameter at the
base. use the formula to determine the approximate
height of a fir tree with base diameter 3.2 m.

Select all the ratios that are equivalent to 8 : 6. *

4:3
6 to 8
16:12
10:8
7 to 5

3/4r+2r+1/2



Plssss help and hurry thanks!

9.Patients who are addicted to cocaine are sometimes using the drug to combat
depression. As such, sometimes addicts are given antidepressant medications to
prevent relapse. A three-year study compared the effects of two such medications,
lithium and desipramine, along with a placebo for 72 cocaine users wishing to break
the habit. The patients were put into 3 groups of 24, and given 1 of the 3 treatments at
random. This two-way table illustrates the results.
Treatment Relapse No relapse Total
Desipramine 10 14 24
Lithium 18 6 24
Placebo 20 4 24
Total 48 24 72
According to the table, 48 of the addicts relapsed regardless of the treatment given.
This number is an example of a
A. relative frequency
B. marginal frequency.
C. conditional relative frequency.
D. joint frequency

what is 4 divided by 3/4?

Simplify the expression to a polynomial in standard form:

(3x+5)(2x^2+x+5)

Y multiplied by 2 1/2

What is the solution to the equation 3 square root x+4+3 square root 2x+8=0? x = –12 x = –4 x = 4 x = 12

Shannon drank 1/5 cup of milk
and 3/4 cup of water. How much
did she drink altogether?
Answer

Estimate 32.79 dived by 8.1

Please help me answer this!!!

A 440-yard race had ten athletes which ran for the following times (in seconds): 46.9, 48.9, 46.7, 46.2, 46.5, 47.2,47.5,46.1, 48.9, and 46.4 . What is the mean of the three fastest runners?

(25m + 22) + (9m) = ?​

Find -1/9(-27) show your work

5 x 2^x= 40 What is the value of x?

Write an expression 12×4 in words

In a pet shelter that is occupied by 55% dogs and 45% cats, 60% of the animals are brought in by concerned people who found these
animals in the streets. If 90% of the dogs are brought in by concerned people, what is the percent of cats that are brought in by
concerned people?

i just started taking a math class today and i'm really rusty. my question is
simplify 28-(6+4)=(4-2)

PLZ HELP ITS DUE TONIGHT
Because two pairs of angles are congruent, the triangles are similar by
the (select)
QR=

Which one? I’ll mark brainliest

Jessica has an account with a credit union. Her account earns 2.6% simple interest yearly. Exactly a year and a half ago, she opened her account with $900.

How much interest has she earned so far?
A.
$35.10
B.
$2,340.00
C.
$46.80
D.
$28.08
pls someone help im very confused

help i need help on this​