3 years ago

PLEASE HELP ASAPPPP!!!

Mathematics

1 answer:

deff fn [24]3 years ago

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X/9 × 4 what is the number of X? Im very confused.

german

Since x/9•4 is a multiple step problem you could do it one of two ways you could either divide 4 since you are multiplying four or you can multiply by nine since you are dividing by nine

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3 years ago

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Find two numbers such that the sum of their squares is 100. The square of the larger number is equal to the sum of the product o

Shtirlitz [24]

Answer with Step-by-step explanation:

Let x and y are two numbers

According to question

$x^2+y^2=100$ ....(1)

Suppose x is larger than y

$x^2=x(4y+8x)$

$x=4y+8x$

$x-8x=4y$

$-7x=4y$

$y=-\frac{7}{4}x$

Substitute the value of y

$x^2+(-\frac{7}{4}x)^2=100$

$x^2+\frac{49}{16}x^2=100$

$\frac{16x^2+49x^2}{16}=100$

$\frac{65}{16}x^2=100$

$x^2=\frac{16\times 100}{65}$

$x=\sqrt{\frac{1600}{65}}=\frac{40}{\sqrt{65}}=\frac{40}{65}\sqrt{65}=\frac{8}{13}\sqrt{65}$

$y=-\frac{7}{4}\times \frac{8}{13}\sqrt{65}=-\frac{14}{13}\sqrt{65}$

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3 years ago

Convert the quadratic equation, <br>f (x) = 2(x - 3)2 +1, into standard form.

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Step-by-step explanation:

........4x-y=11........

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3 years ago

5c+16.5=13.5+10c PLease answer quicly

frosja888 [35]

Remember you can do anything to an equation as long as you do it to both sides

5c+16.5=13.5+10c
minus 5c both sides
16.5=13.5+5c
minus 13.5 from both sides
3=5c
divide both sides by 5
3/5=c

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2 years ago

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The volume of a cube is 729 cubic inches, what is the area of each face of the cube

ivann1987 [24]

81 square inches
9*9*9=729
729/9(height of cube)=81(length and width of cube=area of cube)

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2 years ago