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2 years ago

Please help me it would mean a lot thanks!

Mathematics

2 answers:

marishachu [46]2 years ago

7 0

Answer:

the answer would be -20

Step-by-step explanation:

Yuki888 [10]2 years ago

5 0

Answer:

1/8

Step-by-step explanation:

First you substitute b for -6.

-6 + 7 = -1

Then you substitute a for -4

2× -4 = -8

Now you have -1/-8, but because they are both negative the solution becomes positive

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-12b +6b -4b was the answer yo

Helen [10]

$- 10b$

when we add -12 and 6 we get -6

after that we subtract -6 from -4 to get -10

3 0

2 years ago

Read 2 more answers

Write the point-slope form of an equation of the line through the points (-7, 7) and (4, 1).

seraphim [82]

Answer:

Choice B. $\displaystyle y - 7 = -\frac{6}{11} \, (x + 7)$ .

Step-by-step explanation:

Start by finding the slope of this line. Let $(x_1,\, y_1)$ and $(x_2,\, y_2)$ represent two distinct points on a line on a Cartesian Plane. (That is, $x_1 \ne x_2$ .) The slope of this line would be:

$\displaystyle \frac{y_2 - y_1}{x_2 - x_1}$ .

For the line in this question:

$x_1 = -7$ ,
$y_1 = 7$ ;

$x_2 = 4,$
$y_2 = 1$ .

Indeed, $x_1 \ne x_2$ . The slope of this line would thus be $\displaystyle \frac{1 - 7}{4 - (-7)}$ , which is equal to $\displaystyle -\frac{6}{11}$ .

On a Cartesian Plane, the point-slope form of a line that has a slope of $m$ and includes the point $(x_0,\, y_0)$ can be written as:

$y - y_0 = m\, (x - x_0)$ .

(Note the minus signs in this form.)

For the line in this question, $m = \displaystyle -\frac{6}{11}$ . There are two equivalent expressions for its point-slope form:

Using the first point, $y - 7 = \displaystyle -\frac{6}{11}\, (x - (-7))$ . This equation is equivalent to $y - 7 = \displaystyle -\frac{6}{11}\, (x + 7)$ .
Using the second point, $y - 1 = \displaystyle -\frac{6}{11}\, (x - 4)$ .

7 0

3 years ago

Rhonda had a piece of ribbon that was 5 feet 3 inches long. She removed a 5-inch piece to use in her art project. What is the le

nikitadnepr [17]

Answer:

4 feet 10 inches

5 0

3 years ago

Read 2 more answers

The balance on Taylor's credit card is $2000. It has an interest rate of 12.5%. She wants to compare the difference between payi

-Dominant- [34]

Answer: kindly check Explanation

Step-by-step explanation:

The balance on card = $2000

Interest rate = 12.5%

Therefore, monthly rate = 12.5% / 12 = 0.0104167

Paying $75 of monthly balance :

Interest amount on 2000 = 0.0104167 × 2000 = $20.83

Therefore,

Principal amount payed = 75 - 20.83 = 54.17

Balance = ($2000 + $20.83) - $75 = 1945.83

Interest on balance = 0.0104167 × 1945.83 = $20.2691

Paying $100 of monthly balance :

Interest amount on 2000 = 0.0104167 × 2000 = $20.83

Therefore,

Repayment = 100 - 20. 83 = $79.17

Balance = ($2000 + $20.83) - $100 = 1920.83

Interest on balance = 0.0104167 × 1920.83 = $20.0087

Interest saved by paying $100 instead of $75

$20.27 - $20.00 = $0.27 = 27 cent

3 0

3 years ago

The width of a rectangle is a whole number of centimetres. a The length of the rectangle is 9 cm longer than its width. The peri

musickatia [10]

Answer:

let w = the width of the rectangle

let w- 9=the length of the rectangle

A= L×W

220=w(w-9)

220=w^-9w

w^-9w-220=0

(w-20)(w+11)=0

w-20=0 or w+11=0

w=20cm or x-11 illogical answer

6 0

2 years ago