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3 years ago

Y=2/7x - 3 a. m=2/7, b=-3 b. m=-3, b=2/7 a or b

Mathematics

1 answer:

telo118 [61]3 years ago

8 0

Answer:

A (The second Choice)

Step-by-step explanation:

Credit: The person who couldn't "[...]answer for some reason"

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Dexter's electricity company charges customers for how much electricity they use based on whether the customer's power lines are

8_murik_8 [283]

Answer:

Step-by-step explanation:

The rate for power lines on poles, the one that Dexter uses, is $41.16 then the equation for what he owes that depend on the number of watts he uses is:

Y(what he owes)= $41,16*x(number of watts)

Y= $41,16x

If Dexter do not use the power lines underground, then we should not include this on the equation for what he owes.

8 0

4 years ago

Please help question 4

Burka [1]

Answer:

40 miles

Step-by-step explanation:

let distance be d and time be t

Since d varies directly with t, then the equation relating them is

d = kt ← k is the constant of variation

To find k use the condition d = 75 when t = 3

k = $\frac{d}{t}$ = $\frac{75}{3}$ = 25

d = 25t ← equation of variation

when t = 1.6, then

d = 25 × 1.6 = 40 miles

3 0

3 years ago

Felicia invested $25,000 into an account earning 3% interest compounded annually. She makes no other deposits into the account a

madam [21]

The formula is
A=p (1+r)^t
A future value?
P present value 25000
R interest rate 0.03
T time 9 years

A=25,000×(1+0.03)^(9)
A=32,619.33

7 0

3 years ago

Find the coordinate A if M (-5,-9) is the midpoint of AB and B has coordinate of (3,-5)

rodikova [14]

The coordinates of Point A are (-13,-13)

Step-by-step explanation:

The formula for mid-point of two points (x1,y1) and (x2y2) is given by:

$M = (\frac{x_1+x_2}{2} , \frac{y_1,y_2}{2})$

Given

M = (-5,-9)

B(x2,y2) = (3,-5)

Putting the values

$(-5,-9) = (\frac{x_1+3}{2} , \frac{y_1-5}{2})$

Comparing respective elements

$\frac{x_1+3}{2} = -5\\x_1+3 = -5 * 2\\x_1+ 3 = -10\\x_1 = -10-3\\x_1 = -13\\AND\\\frac{y_1-5}{2} = -9\\y_1-5 = -9 * 2\\y_1-5 = -18\\y_1 = -18+5\\y_1 = -13$

Hence,

The coordinates of Point A are (-13,-13)

Keywords: Coordinate geometry, mid-point

Learn more about mid-point at:

#LearnwithBrainly

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4 years ago

What is a rectangle but not paraelogram

Otrada [13]

A parallelogram<span> is a quadrilateral with 2 pairs of opposite, equal </span>and<span> parallel sides</span>

6 0

4 years ago