2 years ago

What is 80 divided by 7640

Mathematics

2 answers:

Ira Lisetskai [31]2 years ago

7 0

Answer:

0.01047

Step-by-step explanation:

GenaCL600 [577]2 years ago

3 0

Answer:

7640/80=95.5 or 80/7640=0.01047120418

Step-by-step explanation:

I used a calculator.

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Please help me with algebra part B and C. attachment below. Will mark as brainslist. 25 points.

miv72 [106K]

Answer:

C. $(-7x+60)(x+4)$

Step-by-step explanation:

Consider the expression $-7x^2+32x+240.$

First, note that

$a=-7\\ \\b=32\\ \\c=240$

Find the discriminant

$D=b^2-4ac=32^2-4\cdot (-7)\cdot 240=1,024+6,720=7,744\\ \\\sqrt{D}=\sqrt{7,744}=88$

Now,

$x_1=\dfrac{-b+\sqrt{D}}{2a}=\dfrac{-32+88}{2\cdot (-7)}=-4\\ \\x_2=\dfrac{-b-\sqrt{D}}{2a}=\dfrac{-32-88}{2\cdot (-7)}=\dfrac{60}{7}$

Write the factored form:

$-7x^2+32x+240=-7(x-(-4))\left(x-\dfrac{60}{7}\right)=(x+4)(-7x+60)$

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bazaltina [42]

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3 years ago

saul85 [17]

Answer:

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4 years ago

What’s the x intercept and y intercept of 6x-5y=20

oksano4ka [1.4K]

Answer:

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3 years ago

Write an equation for a line that passes through (-4,8) and 8,-1

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Slope is change in y over change in x.

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Answer -2/3

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3 years ago