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3 years ago

Can someone do these for me and list the number because I’m struggling rn. And I’m having a breakdown lol.

Mathematics

1 answer:

Nostrana [21]3 years ago

3 0

Answer:

Step-by-step explanation:

First remove the parentheses.

As the sign outside the second parentheses is a + then the signs of the terms inside stay the same.

So the first one + (-3x +2) is just -3x + 2.

All the others on the left column are answered in the same way.

No. 4:

(-2x + 10 + (-8x - 1) Just remove the parentheses, we get:

-2x + 10 - 8x - 1 (we leave out the + before the second parentheses).

= -2x - 8x + 10 - 1

= -10x + 9

6. 8x + 8 + ( -6x - 1)

= 8x + 8 - 6x - 1

= 8x - 6x + 8 - 1

= 2x + 7.

- the other expressions on the right side column are solved in the same way.

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Martin is an artist who molds plaster into unique shapes.

defon

Step-by-step explanation:

the volume of this object is the sum of the volume of the 2 blocks.

the large block is a cube of 4×4×4 = 64 ft³

the small block is 1×1×2 = 2 ft³

so, in total, he can fit 64+2 = 66 ft³ of plaster into the mold.

8 0

2 years ago

Help due in 30 min!!!!!!!!!!!!!!!

kvasek [131]

The answer is no bc they all have the same x coordinate and therefore fail the vertical line test

6 0

3 years ago

What is the equation of the line that is parallel to the line y = -1/3x+4

RUDIKE [14]

Answer:

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

y = - $\frac{1}{3}$ x + 4 ← is i slope- intercept form

with slope m = - $\frac{1}{3}$

Parallel lines have equal slopes, thus

y = - $\frac{1}{3}$ x + c ← is the partial equation

To find c substitute (6, 5) into the partial equation

5 = - 2 + c ⇒ c = 5 + 2 = 7

y = - $\frac{1}{3}$ x + 7 ← equation of parallel line

8 0

3 years ago

A line that includes the point (-9, 1) has a slope of 1. What is its equation in

SVETLANKA909090 [29]

Answer:

y=x+10

Step-by-step explanation:

1.) y-1=1(x+9)

2.) y-1=x+9

3.) y=x+10

8 0

3 years ago

URGENT!!!

Makovka662 [10]

Answer:

Train A - 50 miles per hour

train B - 30 miles per hour

Step-by-step explanation:

Let x mph be the speed of the train B, then the speed of the train A is (x+20) mph.

In 3 hours,

train A travels 3(x+20) miles
train B travels 3x miles

In total, they covered the distance of 240 miles, so

$3(x+20)+3x=240\ \ \ \text{[Divide by 3]}\\ \\x+20+x=80\\ \\2x=80-20\\ \\2x=60\\ \\x=30\ mph\\ \\x+20=30+20=50\ mph$

8 0

3 years ago