Mathematics College

a line that includes the points (-1,-2) and (a,-10) has a slope of 4. What is the value of a?​

Answers

Answer 1
equation of slope: (y2-y1)/(x2-x1)
(-10 - -2) / (a - -1)
(-10 + 2) / (a + 1)
(-8) / (a + 1)

set this equal to 4 since the slope is given:
4 = -8/(a+1)
multiply (a+1) to both sides
4(a+1) = -8
distribute
4a + 4 = -8
subtract 4 from both sides
4a = -12
divide both sides by 4
a = -3

ANSWER: a = -3

Related Questions

median number for 46,58,72,85,93​

Answers

when u all those 5 numbers together u get 354 so:
354/5= 70.8
70.8 is ur median

Answer:

72

Step-by-step explanation:

You line them up from biggest to smallest and then cross off a number from both sides equally and then get your median;

46,58,72,85,93​

58,72,85  (cross off 46 and 93)

72 (Cross off 58 and 85)

And then you get your answer 72

I hope this helps!!!!!

A ball dropped a height from 100 m
Each time it hits the ground, it bounces 3/5 of the height it fell from.
How high did it bounce
A) on a first bounce?

B)on a second bounce?

Answers

the first should be 60, the second should be 36!

What is the measure of angle 6? Question is in the jpg. Please help :(

Answers

Answer:

38

Step-by-step explanation:

Your welcome

Answer:

158

Step-by-step explanation:

angles 3 and 4 are 90. angle 2 is 68. 180-90-68=22.

180-22 = 158

Relation between an event and a second event, where the second event is understood as a consequence of the first. which one
Group of answer choices

Exponential Growth

Rate of Change

Causation

Correlation

2. The value the item has changed to. Also known as the finished value (after).
Group of answer choices

Rate of Change

New Value

Skewed Distributions

Original Value

Answers

Answer:new value

Step-by-step explanation:

A(n)
has both a magnitude and a direction.
A. scalar
B. vector
C. angle
D. component

Answers

Answer:

vector

Step-by-step explanation:

a p e x

mara is raking leaves. She fills up 7 large bags with them in 3 hours. At this rate, how many bags could she fill in 9 hours?

Answers

Answer:

5

Step-by-step explanation:

branliest????

If there are 36 boys and 60 girls in a room, fill out all of the possible ratios of boys to girls that could be made.

Answers

Answer:

You have the two numbers, so 36/60 is the ratio of boys to girls.

Step-by-step explanation:

You will want to simplify those numbers (reduce to lowest terms).

Answer:

One of them is 6 - 10

Step-by-step explanation:

36/6 = 6

60/6 = 10

6 boys - 10 girls

write 1/6 as a percent

Answers

Answer: 16.666%

Step-by-step explanation:

WILL GIVE BRAINLEST !
hAVE A GOOD DAy :)!

Answers

Answer:

1, 2 * 3^3 * 17

2, 8

Step-by-step explanation:

64 is perfect sqr root 8*8 = 64

Arthur is a car salesman whose salary is $2,750 a month. He also receives a 5% commission on his car sales. For the month of February, he sells $86,500 in cars. How much money did Arthur earn in commission.

Answers

Answer:

4,325.00

Step-by-step explanation:

The question doesn't care what his base salary is, it is asking how much in commission, so total sales of 86,500 X 5% commission = 4,325.00

Find the equation of the line with slope m=1 that contains the point (7,5).

Answers

Answer:

y = x - 2

Step-by-step explanation:

y = mx + b

5 = 1 (7) + b

5 = 7 + b

b = -2

So...

y = x - 2

When Regina throws darts at a dart board, she hits the bullseye 20% of the time. If she throws 25 darts, how many times can she be expected to hit the bullseye?​

Answers

Answer:

5

Step-by-step explanation:

20% of 25 = 5

Hope this helps! If it did, please mark it as brainliest! It would help me out a lot! :D

AA
SSS
SAS
Not Similar

Answers

Answer:

vertically opposite angles and alternate pair

so by aa similarity they are similar

15 divided by 1/7 work out the problem

Answers

Answer:

105

Step-by-step explanation:

15÷1/7 = 15/1 x 7/1 = 105

Seema runs 5 miles more per week than her sister Padma. If Seema runs 17 miles per week, which equation could be used to find the number of miles Padma runs each week? Writ

Answers

Answer:

12

Step-by-step explanation:

because 17-5=12 so the answer is 12

PLEASE HELP QUICK If the bill is $47.96 and you leave a 15% tip, what is the tip amount?

Answers

$7.19
Because 15% equals 0.15 so 47.96x0.15=$ 7.19

What is x equal to in the following equation:

3^x=81
x=?

A. 2
B. 3
C. 4
D. 5

Answers

Answer:

3^4

Step-by-step explanation:

X = 4 or C

because, 3 x 3 x 3 x 3 = 81

Find such a coefficient a for the linear equation ax –y=4, so that the graph of the equation would pass through the point M (3, 5).
PLEASE ANNOTATE SOME IMAGE AND SEND ME IM DESPERATE CORRECT ANSWER GETS LE BRAINLY

Answers

this is a PICTURE

i HOPE IT'S HELP

Can you plz help me plz

Answers

I’m pretty sure it’s G

What is the inverse equation for f(x)=x+6

Answers

Answer:

y^-1 = x - 6

Step-by-step explanation:

change f(x) to 'y'

switch 'x' and 'y'

solve for 'y'

Answer:

Step-by-step explanation:

y = x + 6

x = y + 6

y + 6 = x

y = x - 6

f^-1(x) = x - 6

What’s the answer? I need help I don’t like similar triangles

Answers

I think the answer is 1
Explanation:2x+2=x+3
Subtract the 2 and the x from both sides
1x=1
Divide by one then you get 1
i think it is one hope this helps

y = 5 4x+6y= 62 Solve forx​

Answers

Answer:

x = 8

Step-by-step explanation:

4(8) + 6(5) = 62

32 + 30 = 62

62 = 62

Answer:

x = 8

Step-by-step explanation:

y = 5 and 4x + 6y = 62

4x + 30 = 62

Subtract 30 from each side:

4x + 30 - 30 = 62 - 30

4x = 32

Divide each side by 4:

4x ÷ 4 = 32 ÷ 4

x = 8

The Lorax can sell his Tuffla for $ .25 per pound. How much money will he earn if he sells 50,265 pounds?​

Answers

Answer:

$12566.25

Step-by-step explanation:

because .25 is 1/4 of $1 all you have to do is divide 50,265 by 4 and that's your answer

you could also just multiply .25 by 50,265 to make it simpler and it'll come with the same answer

Find the side length, a.
Round to the nearest tenth.

A=29°
b=4
c=10

a=[?]

Answers

Answer:

a = 6.8

Step-by-step explanation:

Apply the Law of Cosines

a² = b² + c² - 2bc*Cos A

A = 29°

b = 4

c = 10

Plug in the values

a² = 4² + 10² - 2*4*10*Cos 29

a² = 116 - 69.9696

a² = 46.0304

a = √46.0304

a ≈ 6.8

273 to the nearest 100

Answers

Answer:

300

Step-by-step explanation:

7 rounded would make it higher

hope it helps

Answer:

300 is the answer

Step-by-step explanation:

I hope this helps!

Find the measure of the numbered angles in each kite

Answers

Angle 1 is 90° and angle two is 60°

Which rectangular prism has the largest volume?

Answers

the one with the 3 x 3 x 3 dimensions

1x6x2 = 12
2x4x2 = 16
4x4x1 = 16
3x3x3 = 27 cm^3

Which of the following is the balance for a single $2,635 deposit in an account with an APR of 2.79% that compounds interest monthly and is invested for 37 years?

Answers

I believe the answer is $83,190,062.78

The length of a rectangle is twice as long as the width of the rectangle.
The area of the rectangle is ||32|| cm||^2||.
Find the dimensions of the rectangle.
(2 marks)
cm
~ Width =
cm
O Height =
Submit Answer
Skip for Now
ㅇ
a
1
in here to search​

Answers

Answer: length = 8cm

Width = 4cm

Step-by-step explanation:

Let the width of the rectangle be represented by x.

Since the length of a rectangle is twice as long as the width of the rectangle, then the length will be: = 2 × x = 2x

Note that, Area of a rectangle = Length × Width

Therefore,

2x × x = 32

2x² = 32

Divide both side by 2

2x²/2 = 32/2

x² = 16

x = ✓16

x = 4

Therefore, width = 4cm

Since length = 2x

Length = 2 × 4cm = 8cm

Check: length × width = Area

8cm × 4cm = 32cm²

The angle are supplementary find the missing angle measure
I give you brainiest if you answer correct

Answers

1st angle is 50 degrees next one 41

Answer:

12. 50

13.41

Step-by-step explanation:

To find the supplement, subtract the number from 180. For instance for 13. Do 180-139 to find the supplement.

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