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3 years ago

I need help on How to do it

Mathematics

1 answer:

Sloan [31]3 years ago

5 0

200g × 0.9 × 1/2 = 90 g

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Find area and perimeter pls show work

Ksivusya [100]

Step-by-step explanation:

ok so first you can split the object into 2 different shapes like the first picture.

next you can start with shape labeled 1

and the perimeter of that would be 5+5+4+4 =14

so the perimeter is shape 1 is 14

the area would be5×4 which is 20

now shape 2 the perimeter of that would be 8+8+2+2 which is 20

the area would be 8×2 which would be 16

so then you add the are and perimeter of each shape together

p= 14+20=34

a= 20+16= 36

5 0

3 years ago

Line contains the points (0,4) and (2,0). Show that the points (-25,81) does or does not lie on line

Annette [7]

Answer:

(- 25, 81) does not lie on the line

Step-by-step explanation:

We can use the slope m to determine if (- 25, 81) lies on the line or not

to calculate m use the gradient formula

m = ( y₂ - y₁ ) / ( x₂ - x₁ )

with (x₁, y₁ ) = (0, 4) and (x₂, y₂ ) = (2, 0)

m = $\frac{0-4}{2-0}$ = $\frac{-4}{2}$ = - 2

now if (- 25, 81) lies on the line then the slope between (- 25, 81) and either of the 2 points on the line should equal - 2

(x₁, y₁ ) = (- 25, 81) and (x₂, y₂ ) = (2, 0)

m = $\frac{0-81}{2+25}$ = $\frac{-81}{27}$ = - 3

The slopes are not equal hence (-25, 81) does not lie on the line

5 0

4 years ago

Read 2 more answers

A sports broadcaster predicts a basketball team will score 88 points in the next game. If the team actually scored 98 points, wh

Evgesh-ka [11]

Well 88 is 88% and 98% but if you round 88 would turn into 90% and 98 would become 100%. and 100% minus 90% is 10% so the broadcaster had about a 10% error.
I am sure not 100% right because i don't quite know percents yet.
So good luck.
Mark me the Brainiest please.
Tessadog Out

6 0

4 years ago

What is the equation of the line that is parallel to the line y - 1 = 4(x + 3) and passes through the point (4, 32)?

Gnesinka [82]

Answer:

4x +16 the slope is 4 because its parallel to the other equation

8 0

4 years ago

Kevin designs a sprinkler system for his yard. One rotation of the the sprinkler waters a circle with an area of 255pie square f

pantera1 [17]

The area of a circle can be found using:
pi x r^2 (where r is the radius)

If the area of the circle is 255pi, then:
pi x r^2 = 255pi

Now we need to make r the subject:

r^2 = 255 (cancel the pi on both sides)

r = square root of 255

r = 15.96871942

Answer: 15.96871942 feet
Hope the answer helps :)

8 0

3 years ago