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3 years ago

What is the slope of the line that contains the point (-1,8) and (5,-4) answer.com?

1 answer:

5 0

THE SLOPE IS -2

if we have the coordinates of two points on a line, we can find the slope with this formula:
$s = \frac{y2 - y1}{x2 -x1} = \frac{y1 - y2}{x1 - x2}$
so the slope is
$\frac{8 - ( - 4)}{ - 1 - 5} = \frac{12}{ - 6} = - 2$
the answer is -2

good luck

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If the m∠1=123° m ∠ 1 = 123 ° and m∠2= (2x+7)° m ∠ 2 = ( 2 x + 7 ) ° , determine the value of x that supports l∥m l ∥ m . Show y

Georgia [21]

Answer:

Step-by-step explanation:

Let us assume that m<1 nad m<2 are supplementary. Since the sum of supplementary angles is 180degrees, hence;

<1 + <2= 180

123+2x+7 = 180

130+2x = 180

2x = 180 - 130

2x = 50

x = 50/2

x = 25

Hence the value of x is 25

5 0

2 years ago

If 1 candy bar weighs 3 ounces what is the weight of 11 candy bars

Vera_Pavlovna [14]

Answer:

33 ounces

Step-by-step explanation:

Just multiply. If one weights 3 ounces 11x3=33

6 0

3 years ago

Read 2 more answers

A sweater originally costing $80 is now on sale for $60. determine the percent decrease.30% %

aliya0001 [1]

Let x = discount rate
Equate:
$80(1-x) = $60
Solve for x:
1-x = 60/80
1-x = 3/4
x = 1 - 3/4
x = 1/4 or 0.25
x = 25%

6 0

2 years ago

Saige's spaceship traveled 588588588 kilometers (\text{km})(km)left parenthesis, start text, k, m, end text, right parenthesis i

lesantik [10]

Answer:

A is proportional

B and C are NOT proportional

Step-by-step explanation:

First, simplify 588 and 60:

588 divided by 6

60 divided by 6

= 98

Simplify them again by dividing them both by 2

= 49

Let's look at A:

441 and 45

Simplify by dividing by 9

= 49

It's pretty obvious that A is proportional because the simplified values are exactly the same.

Next, let's check B:

215 and 25

Simplify by dividing by 5

= 43

Now that its simplified you can compare

43 is smaller than 49

5 5

B is not proportional

Finally, let's check C:

649 and 110

Simplify by dividing by 11

= 51

Make 51 and 49 have the same denominator so we can compare them

10 5

51 can stay the same because 5 times 2 equals 10

49 times 2

5 times 2

= 98

Now that the denominators are the same we can compare

51 is much smaller than 98

10 10

Therefore, C is also not proportional.

Hope that helps :D

8 0

3 years ago

Read 2 more answers

A family has a huge array of solar panels to make electricity. If each month they sell back 420 kWh for $0.07 per kWh, how much

lana66690 [7]

Answer:

$352.80

Step-by-step explanation:

We have been given a family sell back 420 kWh for $0.07 per kWh each month.

First of all, we will find monthly income of family from solar panels by multiplying 420 by $0.07.

$\text{Monthly income of family from solar panels}=420\text{ kWh}\times \frac{\$0.07}{\text{kWh}}$

$\text{Monthly income of family from solar panels}=420\times\$0.07$

$\text{Monthly income of family from solar panels}=\$29.40$

To find the money earned by the family is one year, we will multiply monthly income by 12 as 1 year equals to 12 months.

$\text{Annual income of family from solar panels}=\$29.40\times 12$

$\text{Annual income of family from solar panels}=\$352.80$

Therefore, the family could make $352.80 in a year from solar panels.

3 0

3 years ago