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3 years ago

How do you multiply

Mathematics

2 answers:

Irina-Kira [14]3 years ago

6 0

Answer

The way you multiply is basically add the same number over and over

Step-by-step explanation:

like 3 * 7 would be the same as 7 + 7 + 7

Or 9 * 4 is the same as 4 + 4 +4 + 4 + 4 + 4 + 4 + 4 + 4

However, Multiplying is a Commutative Property, which means which ever order you put the numbers it will have the same sum (Answer)

Example :

4 * 8 = 8 * 4

DedPeter [7]3 years ago

5 0

Answer:

Step-by-step explanation: FIRST YOU PUT THE NUMBER AND THEN X AFTER THAT YOU PUT THE NEXT NUMBER.

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The formula for the volume sphere is V=4/3pie r^3 what is the formula solved for r?

oksian1 [2.3K]

Answer:

$r = \sqrt[3]{\frac{3V}{4 \pi}}$

Step-by-step explanation:

From the formula of volume of a sphere we have to isolate "r" on one side of the equation i.e. we have to make "r" the subject of the equation.

$V=\frac{4}{3} \pi r^{3}\\\\ \text{Multiplying both sides by 3/4 we get}\\\\\frac{3V}{4} = \pi r^{3}\\\\ \text{Dividing both sides by } \pi \\\\ \frac{3V}{4 \pi} = r^{3}\\\\\text{Takeing cube root of both sides}\\\\\sqrt[3]{\frac{3V}{4 \pi}} = r$

Therefore:

$r = \sqrt[3]{\frac{3V}{4 \pi}}$

3 0

3 years ago

Read 2 more answers

Convert 35 kilometers to miles

Finger [1]

Answer:

The answer would be 21.248 miles

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3 years ago

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Calculate the area of quadrilateral ABCD.<br> State the units of your answer.

cluponka [151]

Answer:

158.76 cm²

Step-by-step explanation:

Quadrilateral ABCD is composed of 2 right triangles

Construct the line BD, then

Δ ABD and Δ BCD are the 2 right triangles.

The area (A) of a triangle is calculated using

A = $\frac{1}{2}$ bh ( b is the base and h the perpendicular height )

Δ ABD with b = 18 and h = 7.5

A = $\frac{1}{2}$ × 18 × 7.5 = 9 × 7.5 = 67.5 cm²

Δ BCD with b = 15.6 and h = 11.7

A = $\frac{1}{2}$ × 15.6 × 11.7 = 7.8 × 11.7 = 91.26 cm²

Thus

area of ABCD = 67.5 + 91.26 = 158.76 cm²

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3 years ago

Which phrase represents the algebraic expression 5x-9

Gre4nikov [31]

the product of five times a number and nine the difference of nine times a number and five the sum of five times a number and five the difference of five times a number and nine

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3 years ago

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Find h(x) +g(x). h(x)=x^2+6x and g(x)=-2x-3

AURORKA [14]

Answer:

$h(x) + g(x) = x^{2} + 4x - 3$