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Svetllana [295]
3 years ago
14

PLEASE HELP The perimeter of a square is directly proportional to the length of one of its sides. The perimeter is 28 when the l

ength of a side is 7. What is the constant of proportionality?
Mathematics
1 answer:
Varvara68 [4.7K]3 years ago
7 0
28/7=4. As a result, the constant of proportionality is 4. Hope it help!
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Write the equation of a line that passws through the point (1,7) and is perpendicular to y=1/2x-5
Firdavs [7]

Answer:

y=-2x+5

Step-by-step explanation:

For one line to be perpendicular to another, their slopes must multiply to -1. So, we really want the line with slope $-1/(1/2)$ = -2$ that passes through the point (1, 7).

Recall the point-slope form of a line. If you have a point $(x_{1}, y_{1})$ and a slope m, the line through that point with the given slope is $y-y_{1}=m(x-x_{1})$. Plugging in our given point and slope gives our line: y-7=-2(x-1)(point-slope form).

We can convert this line to slope-intercept form, the most common form by expanding the right side and adding 7 to get y by itself:

y-7=-2x+2

y=-2x+5

5 0
3 years ago
Rectangles A and B have the same perimeter but are different shapes Rectangle S is 5 inches long and 3 inches wide. Rectangle B
koban [17]
We know that
perimeter rectangle A=2*[5+3]-----> 16 in

let
x------> length side rectangle B
y-------> width  side rectangle B
so
x=6+y-------> equation 1
16=2[x+y]------> equation 2
<span>I substitute 1 in 2
</span>16=2*[6+y+y]-------> 16=2*[6+2y]-----> 16=12+4y-----> 4y=16-12
y=4/4--------> y=1 in
x=6+1---->x=7 in

the answer is
the dimensions of rectangle B are
length side is 7 in
width  side is 1 in

4 0
4 years ago
Jackson borrows $400 with an interest rate of 1.5%.How much interest will he pay after 4 years?
mafiozo [28]

Answer:

24 interest after 4 years

Step-by-step explanation:

I just took 400 and multiplied it to 1.5%(.015) to get 6 and then multiplied that to 4 to get 24 and you could it if you want. Ask if you have a question.

6 0
3 years ago
Help pleaseee is for nowwww
kykrilka [37]

Answer:

your bo**bs are so far wooooooooooooooooow!!!!

6 0
3 years ago
FREEE POINTSSS!!!!!! x + 6 = -11
katrin2010 [14]

Answer:

x = -11 - 6 = -17

4 0
3 years ago
Read 2 more answers
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