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3 years ago

7 is added to 1/2 of h

Mathematics

1 answer:

ryzh [129]3 years ago

6 0

Answer:

14+h

Step-by-step explanation:

7 + 1/2 × h

7 + 1h/2

find the LCM of 1 and 2

the LCM =2

multiply via by their LCM

14 + h

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A moving walkway at an airport moves at a piece of 1.75 ft./s. if you stand on the walkway as it moves how long will it take to

Helga [31]

It says that a piece of one 1.75 ft./s. means 1.75x, and when it says, "how long will it take to transfer you to 280ft," its telling you to plug in 280 to 1.75 which is multiplying 1.75(280),

which the answer is: 490 seconds

Hope it helped :)

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2 years ago

Please help

Mnenie [13.5K]

Given:

Given that the radius of the sphere is 9 cm

We need to determine the volume of the sphere.

Volume of the sphere:

Let us determine the volume of the sphere.

The volume of the sphere can be determined using the formula,

$V=\frac{4}{3} \pi r^3$

where r is the radius of the sphere.

Substituting r = 9 in the above formula, we get;

$V=\frac{4}{3} \pi (9)^3$

$V=\frac{4}{3} \pi (729)$

$V=\frac{2916}{3} \pi$

$V=972 \pi$

Thus, the volume of the sphere is 972π cm³

Hence, Option B is the correct answer.

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2 years ago

(-4x^2)^3 Please answer this and explain to me how you got the answer.

riadik2000 [5.3K]

(-4x^2)^3
= (-4)^3 x^6
= - 64x^6

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2 years ago

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Which of the following options have the same value as 20% of 45?

kherson [118]

Answer:

$B. \: \frac{1}{5} \cdot 45$

$E.\: 0.2 \cdot 45$

$D. \: \frac{20}{100}\cdot 45$

Step-by-step explanation:

% means /100

$20\% = \frac{20}{100} \\\\20/100 =0.2\\= 0.2\cdot 45\\\\\frac{20}{100}=\frac{1}{5} \\\\= \frac{1}{5} \cdot 45$

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2 years ago

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Which of the binomials below is a factor of this trinomial 4x^2-4x-120

tatyana61 [14]

4x^2-4x-120
=4(x^2 - x - 30)
=4(x-6)(x+5)

answer
B.x-6

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2 years ago

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