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marishachu [46]
4 years ago
8

(08.05)

Mathematics
1 answer:
Readme [11.4K]4 years ago
5 0
The mistake is in step 3:

I: −2m =−12 − 2n
II: 2m = 8 + 8n

the student set both right sides of the equations equal (−12 − 2n = 8 + 8n), but the left sides aren't equal: first equation has -2m, second has +2m so the signs of one of the equations must be inverted first
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It’s an emergency help!
Anettt [7]

Answer:

24m^2

Step-by-step explanation:

to get the length, we have to follow this equation:

2W + 2L = P

2(4) + 2L = 20

8 + 2L = 20

8 + 2(6) = 20

to get the area from this information, we have to follow this equation:

A = W • L

A = 4 • 6

A = 24m^2

lol also isn’t there a time limit on quizizz ?

5 0
3 years ago
How do get this answer?
Debora [2.8K]

Answer:

A line is at a degree of 180, so the line 170 is on can give you the degree of the smallest angle: 10. A traingel has a total degree of 180, so 125 + 10 = 135. Take 180 and subtract 135 to get x = 45º

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
PLEASE TELL ME THE ANSWER IM CONFUSED
emmainna [20.7K]

Answer:

A=150.72 m^2

Step-by-step explanation:

Using the formula for the surface area of a cylinder

A=2\pi rh+2\pi r^2

As we know that r=3, h=5, and \pi =3.14 we can substitute in these values into the equation and then solve it

A=2(3.14)(3)(5)+2(3.14)(3)^2\\\\A=94.20+56.52\\\\A=150.72

3 0
3 years ago
A student can eat 1/8 of a pizza If there are 40 students in Ms. Leila's class, how many pizzas does Ms. Leila need
Serjik [45]
She would need 5 pizzas

The explanation is 40/8=5
8 0
3 years ago
Read 2 more answers
How do I find two integers whose sum is -6
3241004551 [841]
You can use two negative numbers and add them to get -6. An example can be -4+-2=-6
5 0
4 years ago
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