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2 years ago

MARKING BRAINLIEST

Mathematics

1 answer:

wlad13 [49]2 years ago

6 0

Answer:

$(x+y+z)^2$

Step-by-step explanation:

$x^2+2x(y+2)+(y+2)^2$

there is a factoring rule where

$a^2+2ab+b^2=(a+b)^2$

So,

a = x

b = y + z

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The regular price of a child's entry ticket to a water park is $6 less than that for an adult's. The park offers half off all en

Anestetic [448]

The price is just 50 dollars

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3 years ago

Last weekend,Mandy collected 4 times as many shells as Cameron.Together how many shells did Mandy collect?write an equation and

shutvik [7]

Answer:

4x=y

Step-by-step explanation:

Mandy collects 4 times the amount that Cameron has, so Cameron's amount x 4 = Mandy's amount

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3 years ago

Directions: Find the volume of each figure. Round to the nearest tenth if necessary.

balu736 [363]

Answer:

Step-by-step explanation:

square-based pyramid:

volume V = (⅓)b²h

= (⅓)7²·16

≅ 261.3 ft³

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Can't help with question 3. I haven't learned triangle-based pyramids.

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cone:

volume V = ⅓πr²h

= ⅓π17²·20

= 6052.8 yd³

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can't help with question 7. Never did this kind of pyramid.

3 0

2 years ago

BRAINLYYYY PLUS 100 PointsThe difference between two numbers is 84 and their sum is 278. What are the numbers? Hint( answer is x

den301095 [7]

Answer:

x = 181 and y = 97

Step-by-step explanation:

let called the first number is x

the second number would be called y

We are given that:

x + y = 278 (1)

x = y + 84 (2)

Let change x in (2) into (1):

y + 84 + y = 278

2y + 84 = 278

Subtract 84 from both side, we got:

2y + 84 - 84 = 278 - 84

2y + 0 = 194

Divide both side by 2, we got:

2y / 2 = 194 / 2

y = 97

Because y = 97 and x + y = 278 so x would equal:

x + 97 = 278

Subtract 97 from both side, we got:

x + 97 - 97 = 278 - 97

x + 0 = 181

x = 181 and y = 97

Hope this helped :3

4 0

2 years ago

Neptune is an average distance of 4.5 × 10^9 km from the Sun. Estimate the length of the Neptunian year using the fact that the

zlopas [31]

Answer:

164.32 earth year

Step-by-step explanation:

distance of Neptune, Rn = 4.5 x 10^9 km

distance of earth, Re = 1.5 x 10^8 km

time period of earth, Te = 1 year

let the time period of Neptune is Tn.

According to the Kepler's third law

T² ∝ R³

$\left ( \frac{T_{n}}{T_{e}} \right )^{2}=\left ( \frac{R_{n}}{R_{e}} \right )^{3}$

$\left ( \frac{T_{n}}{1} \right )^{2}=\left ( \frac{4.5\times10^{9}}}{1.5\times10^{8}}} \right )^{3}$

Tn = 164.32 earth years

Thus, the neptune year is equal to 164.32 earth year.

Step-by-step explanation:

3 0

3 years ago

*MARKING BRAINLIEST*

MARKING BRAINLIEST