would you solve this by multiplying the second equation by 2 or -2 and why?

Answers

Answer 1

What’s the equation?

Answer 2

Umm can you take a screen shot of the question???

Related Questions

Matteo was told he could spend AT MOST $80 to spend at the mall. He bought lunch for $25. He wants to buy phone cases for his friends. If the phone cases cost $5. How many phone cases can he buy?
Write and solve the inequality for each word problem

Answers

80 - 25 = 55. 55 divided by 5 = 11 phone cases.

You start with $80 and you buy lunch so you subtract 80-25=55. The phone cases are $5 each. 55 divided by 5= 11 phone cases

Hope it helps

A table of values of a linear function is shown below. Find the output when the input is n. Type your answer in the space provided.

Answers

i think -3 if n is the y int

Answer:

-13

Step-by-step explanation:

Which of the following equations is true?

A. 12x + 3 = 4x + 10
B. 12x + 3 = 7x + 1
C. 7x + 1 = 6x + 5
D. 7x + 1 = 4x + 10

Answers

All expect A , i am in 8th grade now so i barely even know but i found out and it’s all expect a !

I think it’s D

Correct me if I’m wrong

Please help meh i really need help

Answers

Answer B is 56 thats all i know

Step-by-step explanation:

part a) scale factor = dividing by two

part b) 5.5 feet

Need help with question 4 :(

Answers

The first one because it has a 6 the others have a 3

How many cubes with side lengths of 1/2 cm does it take to fill the prism?
Length:3
Width: 1
Height: 1

Answers

Answer:

3???

Step-by-step explanation:

hope this helps

Select the TWO answer choices that apply.

Answers

D and B

Sum means the solution to an addition problem

Answer:

B and D! :D

Step-by-step explanation:

Determine whether the two expressions are equivalent. If so, tell what property is applied. If not, explain why.
1. 8 x (4 x 3) and (8 x 4) x 3
2. 17 + 12 and 12 + 17

Answers

1. yes, because pemdas.
2. yes, because commutative property.

Please help with these questions!!!

Q1:

Show all work to factor x^4 − 5x^2 + 4 completely.

Q2:

Show all work to solve 3x^2 − 5x − 2 = 0.

Q3:

Two functions are given below: f(x) and h(x). State the axis of symmetry for each function and explain how to find it.

f(x) h(x)

f(x) = −4(x − 8)^2 + 3 graph of negative 1 times the quantity of x minus 3 squared, plus 2

Q4:

The functions f(x) = (x + 1)^2 − 2 and g(x) = −(x − 2)^2 + 1 have been rewritten using the completing-the-square method. Apply your knowledge of functions in vertex form to determine if the vertex for each function is a minimum or a maximum and explain your reasoning.

Answers

Answer:

Step-by-step explanation:

Q1: (x-1) * (x+1) * (x-2) * (x+2)

Q2: x'1 = -1/3, x'2 =2

Q3: i dont get this one sry

SOMEONE PLEASE HELP PLSSS WILL MARK BRAINLIEST

Answers

Answer:sorry

Step-by-step explanation: I don’t know

I WILL GIVE BRAINLIEST!!!! ANSWER CORRECTLY OR YOU'RE GETTING REPORTED/BANNED!

Answers

Answer:

96 degrees

Step-by-step explanation:

The three angles in a triangle add up to 180 degrees. if angle one is 42 the the opposite angle is also 42. 42+42= 84 . Then 180-84 = 96 which would be the last remaining angle. Since the bottom and top triangle are the same the same is true for the bottom triangle.

I think it’s 96 degrees but I’m not to sure :)

the scale of the building plans is 1in. = 4ft. a room that is 6 inches long in the drawing is actually how many feet long?

Answers

9514 1404 393

Answer:

24 ft

Step-by-step explanation:

Multiply the given ratio by 6 to see.

1 in = 4 ft

6 in = 24 ft

The room is actually 24 feet long.

It’s actually 24 ft because 6 • 4=24

Please help ASAP ASAP ASAP ASAP ASAP

Answers

hope this helps!!! :)

the answer is 1 remainder 1 at the top and the bottom numbers are 8 and 1 lol

which go together? please help!

Answers

Answer:

It looks to me like you have them all in the correct order!

Step-by-step explanation:

Sorry if I'm wrong!

Can someone solve all of this for me (100 FOR BRAINLIEST)

Answers

Answer:

1. 24

2. 52

3. 11

4. 200

5. 48

6. 96

7. 18.75

8. 171

9. 48

10. 84

11. 14

12. 85

13. 2250

14. 75

15. 200

16. 26.75

Suppose you send about 12 text messages a day, and your older sister sends more text messages than you do. Together, you send a total of about 26 messages per day. About how many text messages does she send a day? Write an equation and solve for the unknown value. (2 points)

Answers

The answer is 14 you should do 26=12=14

Answer: 14

Step-by-step explanation: x=26-12

When it says square 5, does that mean 5^2 or does it mean [tex]\sqrt{5}[/tex]

Answers

it means the 2nd one .. i cant put that symbol but it is the second one you put

Answer:

what i mostly understand by square 5 is [tex]\sqrt{5}[/tex] because 5^2 would be 5 squared.

PLEASE HELP ME BRAINLISET FOR RIGHT ANSWER!!

Answers

Answer:

1. No, Student 1 did not make any errors. However, their use of a ruler, or lack of thereof, could result in a lack of accuracy.

2. The student manually found the points and connected them together, doing so for both A and B and thus finding the intersection.

3. Since there is no formula used, the result may not be accurate. The student can only guess the position of the intersection, not know exactly (i.e. when the points are positioned at decimal numbers.)

Answer:

for answer 1 its no

for 2 the person found the points and connected them

for 3 no formula so its not accurate

my brother is in high school and this is what he told me it was if its wrong im sorry my brother is an idiot lol

i hope u have an amazing day and i hope this helps and i hope this is right :)

A Barrel in the Shape of a Cylinder is cut in half lengthwise to make the water trough for horses.

Answers

B (don’t mind this I need 20 characters

What are the values of A, B, and C in the equation –4x – 5y = 8?

Answers

Answer: A.Slope = 1.600/2.000 = 0.800

B. x-intercept = 8/4 = 2

C. y-intercept = 8/-5 = -1.60000

Step-by-step explanation:

Answer:

A = -4

B = -5

C = 8

Step-by-step explanation:

The distance from a driveway to the closest house is 12,672 feet. How far is that in miles? (1 mile = 5280 feet)
A) 2.2 miles
B) 2.4 miles
C) 4.2 miles
D) 12 miles

Answers

B) 2.4 miles
12,672 ft/ 5,280 ft = 2.4miles

B I think because um smart nah I’m playing but i think it’s B

PLEASE HELP THIS ASSIGNEMNT IS TIMED

Two trains, Train A and Train B, weigh a total of 417 tons. Train A is heavier than Train B. The difference of their weights is 249 tons. What is the weight of each train?

Answers

208.5. What is did is because u said the total weight is 417 I just divided that by two. Hope this helps

please help me out i don't understand this question thanks!

Answers

Answer:

try using radius i think

Step-by-step explanation:

Answer:

Use radius

Step-by-step explanation:My teacher says so

Select all the expressions which have 3 as the greatest common factor of the terms. Pick two
b + 3 + 6c
27n + 66p
38 – 9j + 6k
12x + 75y + 21
–32 – 24z

Answers

im not sure about this one but it could be 12x+75y+21 and b+3+6c / disclaimer may be wrong. have a good day!

Please help me with this! I will give brainliest!

Answers

1.
radius= 10
diameter= 20

circumference formula: C = 2•pi•r
circumference: 62.8

area formula: A = pi•r^2
area: 314

2.
radius= 6
diameter= 12

circumference formula: C = 2•pi•r
circumference: 37.68

area formula A = pi•r^2
area: 113.04

hope this helps!

Write the equation of the line in slope-intercept form using y=mx+b

Answers

Answer:
y=2x+0

Explanation:
To find the “b” of this equation you simply see where the line hits the y- intercept , in this case it will be 0. And to find the “m” of this equation you find the rise over run . Hope that helps.

If you can help with this problem I'll give u brainliest. You can only use each number once and there's no need to give an in-depth explanation, just where each number goes.

Answers

Answer:

a concave lens is exactly the opppostie with outer surfaces curving inward, so it makes parallel light rays curve outward or diverge. That's why concave lenses are sometimes called diverging lenses. ... The distance from the center of the lens to the focal point is, again, the focal length of the lens.

Step-by-step explanation:

please help with 6 , 9 , & 10

Answers

9514 1404 393

Answer:

6. 15/22

7. 1/12

9. 1/16

10. 0

Step-by-step explanation:

6. 10 of the 12 tiles are "not P", so the probability of a "not P" on the first draw is 10/12 = 5/6. After drawing a "not P" on the first draw, 9 of the remaining tiles are "not P". The probability of drawing one of those is 9/11. So, the joint probability of drawing two "not P" tiles is ...

(5/6)(9/11) = (5·9)/(6·11) = 15/22

7. The probability of drawing a tile worth 3 points is 3/12 = 1/4. The probability of drawing a tile worth 1 point is 4/12 = 1/3. So, the joint probability of drawing a 3-point tile, then a 1-point tile is ...

(1/4)(1/3) = 1/12

9. There are 3 of the 12 tiles worth more than 4 points. The probability of drawing one of them is 3/12 = 1/4. The probability of doing it again is also 1/4, so the probability of doing it twice is ...

(1/4)(1/4) = 1/16

10. The probability of drawing a Z is 1/12. Having drawn a Z, the probability of drawing a 10-point tile is 0/11. The joint probability of drawing a Z twice is ...

(1/12)(0/11) = 0

_____

Additional comment

We revisited problem 7 because we needed that answer for problem 9.

David worked seven hours and earned $117.25. If he earned $670, how many hours did he work?

Answers

I believe the answer is 78557.5 hours

Answer:

40 hours

Step-by-step explanation:

$117.25 / 7 hours = $16.75 an hour

$670 / $16.75 = 40 hours

giving brainliest!!!!!!!!!!!!!!

Answers

Answer:

Step-by-step explanation:

The mean is figured out by using this formula: sum/size. The mean here is 4

The median is basically the middle number. The middle number here is 5.

5 > 4 The median is greater than the mean, 4.

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