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yuradex [85]
3 years ago
15

What's 5y^-1+7x^2+8y^2 ? help plz id appreciate it .

Mathematics
1 answer:
luda_lava [24]3 years ago
3 0

Answer:

The answer is zero

Step-by-step explanation:

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In a local ice sculpture contest, one group sculpted a block into a rectangular based pyramid. The dimensions of the base were 3
Natasha_Volkova [10]

Answer:

87.6m²

Step-by-step explanation:

From the above question, we are given the following information

The dimensions of the base were 3 m by 5 m:

Length = 3m

Width = 5m

The pyramid was 3.6 m high

Height = 3.6m

To calculate the amount of ice needed for this sculpture, we would have to find the Surface Area of the Rectangular Prism

This is calculated as:

Surface Area =2(wl+hl+hw)

= 2(3 × 5 + 3.6 × 3 + 3.6 × 5)

= 2(15 + 10.8 + 18)

= 2(43.8)

= 87.6m²

The amount of ice needed for this sculpture is 87.6m²

6 0
3 years ago
What is the value of x in 2.5(6x-4)=10+(1.5+0.5)
Alecsey [184]

Answer:

x = 22/15

Step-by-step explanation:

2.5(6x-4)=10+(1.5+0.5)

Combine like terms

2.5(6x-4)=10+(2)

2.5(6x-4)=12

Divide each side by 2.5

6x-4 = 4.8

Add 4 to each side

6x = 8.8

Divide by 6

6x/6 = 8.8/6

x = 88/60

x = 22/15

5 0
3 years ago
1. Find the value of x in each of the giving your answer correct to 3 significant figures.​
Marta_Voda [28]

Answer:

a) tan40°=X÷3

3tan40°=x

x=2.517

3 0
2 years ago
What is the approximate area of the shaded region under the standard normal curve below? Use the portion of the standard normal
kotegsom [21]

This region as the same area as the one in your previous question.

Pr[1 < <em>Z</em> < 2] = Pr[-2 < <em>Z</em> < -1] ≈ 0.14

5 0
3 years ago
At what rate per cent per annum will $400 yield an interest of $78 in 1 1/2 years?
Y_Kistochka [10]

Use language that's easy-to-understand. If there's a piece of vocabulary that you feel needs clarifying, define it!   23

Step-by-step explanation:

5 0
2 years ago
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