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Zielflug [23.3K]

3 years ago

15

I know this is easy but im stuck on two answers and im getting confused.. The first one that answer this correctly gets a BRANLI

ST

1 answer:

evablogger [386]3 years ago

5 0

I don’t know the gap at the beginning but the answer is c

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it's asking to write an equation in slope-intercept form for the line with slope -4 and y-intercept 7. then graph the line. plea

LuckyWell [14K]

Answer:

Equation = y = -4x+7

See the graph below

Step-by-step explanation:

The equation of the line in slope intercept form is expressed as;

y = mx+c

Given

slope m = -4

y-intercept c = 7

Substitute

y = -4x + 7

Get the x intercept.

at y = 0

0 = -4x + 7

4x = 7

x = 7/4

x = 1.75

The x coordinate (1.75, 0)

Get the y intercept

at x = 0;

y = -4(0)+7

y = 0+7

y = 7

The y coordinate is (0, 7)

5 0

3 years ago

Five years from now, the sum of the ages of a women and her daughter will be 40 years. The difference in their present age is 24

Tomtit [17]

Answer:

Daughter age = 3 years

Step-by-step explanation:

Let x be the age of the women and y be the age of the daughter.

Given:

After five year the sum of the women and daughter age = 40

$(x+5)+(y+5)=40$

At present the sum of the women and daughter age

$x+5+y+5=40$

$x+y+10=40$

$x+y=40-10$

$x+y=30$ --------------(1)

So the sum of the present age is $x+y=30$

The difference in their present age is 24 years.

$x-y=24$

$x=24+y$

Now we substitute x value in equation 1.

$(24+y)+y=30$

$24+2y=30$

$2y=30-24$

$2y=6$

$y=\frac{6}{2}$

$y=3\ years$

Therefore, the daughter age is 3 years.

7 0

3 years ago

Simplify the expression. Explain each step.<br> - q•3

Sveta_85 [38]

Answer:

-3q

Step-by-step explanation:

-q is actually -1q so you just divide 3 by -1 and get -3q

8 0

3 years ago

write an equation in point slope form of the line that passes through the point (0,1) and has a slope if -3/2

DochEvi [55]

Step-by-step explanation:

<u>y</u> - <u>1</u> = <u>-</u><u>3</u>

x - 0 2

2y - 2 = -3x

2y = -3x + 2

7 0

3 years ago

What’s the radius of a circle with an area of 123 square feet

Katyanochek1 [597]

Answer:

6.25716517287

Step-by-step explanation:

Area of circle = π × r²

→ 123 = π × r²

⇒ Divide both sides by π

→ 39.1521160006 = r²

⇒ Square root both sides

→ 6.25716517287 = r

7 0

3 years ago