2 years ago

Help me please i need step by step explanation to please

Mathematics

2 answers:

OleMash [197]2 years ago

8 0

This answer is 7(x + 9). You factorize it by dividing 7 to 63 which is 9.

Stells [14]2 years ago

3 0

the answer is 7(x+9) because when expanded you get 7x +63

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$900 that he gained in December +$500 that he gained in January-$300 that he lost=$1100

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A parabola intersects the x-axis at x = 3 and x = 9.

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If 4/3divided by 1/6 then the value of p is between which of the following pairs of numbers

Lerok [7]

Answer:

7 and 9

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3 0

3 years ago

Suppose j varies jointly with g and v, j=1 when g=6 and v=3. Find j when g=8 and v=11

Lady bird [3.3K]

j=4.88 when g=8 and v=11

Further explanation:

When the increase/decrease in one quantity cause increase/decrease in other quantity, it is called direct variation.

Variation is always accompanied by a variation constant.

<u>Given</u>

g and v vary directly with j

IT can be written as:

j∝gv

Putting the variation constant k

j = kgv

Putting g = 6 and v=3

$j = kgv\\1 = k * 6 * 3\\1 = 18k\\k = \frac{1}{18}$

So the value of k is 1/18 which makes the equation

$j = \frac{1}{18}gv\\ Putting\ g=8\ and\ v=11\\j = \frac{1}{18} * 8 * 11\\j = \frac{88}{18}\\ j =4.88$

So, j=4.88 when g=8 and v=11

Keywords: Variation, Direct Variation

Learn more about variation at:

#LearnwithBrainly

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3 years ago