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olya-2409 [2.1K]
2 years ago
8

PLZZ HELP ME WORTH 35 POINTS

Mathematics
2 answers:
postnew [5]2 years ago
5 0

Answer: what grade is this math

Step-by-step explanation:

Vitek1552 [10]2 years ago
3 0

Answer:

3.2

Step-by-step explanation:

8/100×40=3.2. This is how to find the sales tax.

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Rewrite x+2y=-4 in slope intercept
barxatty [35]

Answer:

y= - 1/2 x-2 ( SEE IMAGE BELOW)

Step-by-step explanation:

FYI you can use the app photo math, you just take a pic of the problem and it gives you the answer and explains the steps and it is free.

5 0
3 years ago
Read 2 more answers
Find the total area the regular pyramid.<br><br> T. A. =
lorasvet [3.4K]

Answer:

T.A. = 16√3 units²

Step-by-step explanation:

∵ The total area = the area of the four faces

∵ The four faces are equilateral triangles with side length 4

∵ Area of the equilateral Δ = 1/4 s² √3

∴ T.A. = 4 × 1/4 × 4² × √3 = 16√3 units²

5 0
3 years ago
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Explain what is the difference between (-6) to the power of 2 and -6 to the power of 2.
Allisa [31]

Answer:

Step-by-step explanation:

(-6)² = -6*-6

(-6)² = 36

-(6)² = -(6*6)

-(6)² = -36

The sign is affected by potency

8 0
2 years ago
a family walked 240 miles in 4 hours yesterday at this rate how many hours will it take to walk another 150 miles ​
alekssr [168]

Answer:

2.5 hours. my bed if it wrong

Step-by-step explanation:

3 0
2 years ago
Find the surface area of the prism. 6 cm, 9 cm, 3cm
pishuonlain [190]

Answer: 198cm

Step-by-step explanation:

We are given the dimensions of a rectangular prism;

3cm 9cm and 6cm

We are required to determine its surface area;

We need to know that;

Surface area of a rectangular prism is given by;

A = 2(WL+HL+WH)

Where L, W and H are length , width and height respectively;

Assuming;

Width is 3 cm

Length is 9 cm, and

Height is 6 cm

Then;

Area = 2 ( (3×9) + (6×9) + (3×6))

       = 2(99)

      = 198 cm²

Therefore, the area of the rectangular prism is 198 cm²

3 0
2 years ago
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