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ankoles [38]
3 years ago
14

Which multiplication problem is modeled on the number line? 2(– 4) 4(2) 2(4) 4(– 2)

Mathematics
2 answers:
ivann1987 [24]3 years ago
8 0

4(-2) is modeled on the number line.

Step-by-step explanation:

Step 1:

The multiplication problem's answer is -8, so first, we need to determine which options actually equal the answer.

We individually determine how much each of the options equal.

Step 2:

2(-4)= -8, option 1 equals -8, so it could be the answer.

4(2)=8, option 2 does not equal -8, so it cannot be the answer.

2(4)=8, option 3 also does not equal -8, so it cannot be the answer.

4(-2)= -8, option 4 does, so it could be the answer.

Step 3:

In the number line, 4 arrows are equalling -2 every time. So the answer is option 4. 4(-2).

OleMash [197]3 years ago
6 0

Answer:

4(-2) is modeled on the number line.

Step-by-step explanation:

because you have to do the same thing .so you start on negative 2 and jump 4 spaces to the right

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Pam and Amanda and Mike work at different clothing stores. Amanda made twice what Pam earned and Julie
Dmitriy789 [7]

Answer:

Pam: $181

Amanda: $362

Julie: $452

Step-by-step explanation:

(What does Mike have to do with this problem?)

Let a = Amanda's pay

Let p = Pam's pay

Let j = Julie's pay

"Amanda made twice what Pam earned"

a = 2p

"Julie made $90 more than Amanda"

j = a + 90

j = 2p + 90

Pam earned p

Total salary

a + p + j = 2p + p + 2p + 90

Total salary

$995

2p + p + 2p + 90 = 995

5p = 905

p = 181

a = 2p = 2(181) = 362

j = 2p + 90 = 362 + 90 = 452

Answer:

Pam: $181

Amanda: $362

Julie: $452

8 0
3 years ago
Find the vertex of the quadratic function: y= 2x^2 - 12x + 9
masha68 [24]

Answer:

6+_3√2/2

Step-by-step explanation:

y=2x²-12x+9

y=6+3√2/2

4 0
4 years ago
Can someone please help me?
denis-greek [22]

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B

Step-by-step explanation:

Use a graphing calculator like desmos and youll find the answer

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3 years ago
Put it in slope intcercept form<br> 4x + 3y = -9
Vlada [557]

Answer:

y = -4/3x - 3

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Lauren drew a triangle. Its sides were 7\text{ mm}7 mm7, start text, space, m, m, end text, 9\text{ mm}9 mm9, start text, space,
kkurt [141]

Answer: The triangle has two angles of 49.99° and one angle of 80.02°

Step-by-step explanation:

We have a triangle with sides of 7mm, 9mm and 7mm

The triangle has two equal sides, so this means that this is a Isosceles triangle.

The angles are

The base of this triangle is the side with 9mm, and the two base angles are equal.

We can find the base angles by drawing a line from the middle of the base to the top vertice, then we will have a triangle rectangle with a hypotenuse of 7mm, a adjacent cathetus of 4.5 mm, and with this two things we can find the base angle by using the relation

cos(a) = adjacent cathetus/hypotenuse = 4.5mm/7mm

a = Acos(4.5/7) = 49.99°

Then in our isosceles triangle we have two base angles of 49.99°

To find the other angle we can use the fact that the 3 inner angles of a triangle adds up top 180°

Then

49.99° + 49.99° + A = 180°

A = 180° - 2*49.99° = 80.02°

8 0
3 years ago
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