3 years ago

Can someone please help with my math :I !!

Mathematics

1 answer:

sleet_krkn [62]3 years ago

4 0

Answer:

go to the right 2 and up 6

Step-by-step explanation:

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The difference between 783 and 529

erastovalidia [21]

Answer:

254

Step-by-step explanation:

If you subtract both numbers, you will find the answer is 254

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3 years ago

A bulldozer does 30,000 joules of work to push another boulder a distance of 20 meters. how much force is applied to push the bo

svet-max [94.6K]

You divide the distance (20 meters) and 30,000 joules and youll get the force. therefore the answer will be 1500 newtons

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3 years ago

Which of the following are solutions to 2x2 – 8x - 90? Select all that apply.

Bond [772]

Answer:

x=-5, x=9

Step-by-step explanation:

we know that

The formula to solve a quadratic equation of the form

$ax^{2} +bx+c=0$

is equal to

$x=\frac{-b\pm\sqrt{b^{2}-4ac}} {2a}$

in this problem we have

$2x^{2} -8x-90$

equate to zero

$2x^{2} -8x-90=0$

$2=-1\\b=-8\\c=-90$

substitute in the formula

$x=\frac{-(-8)\pm\sqrt{-8^{2}-4(2)(-90)}} {2(2)}$

$x=\frac{8\pm\sqrt{784}} {4}$

$x=\frac{8\pm28} {4}$

$x=\frac{8+28} {4}=9$

$x=\frac{8-28} {4}=-5$

therefore

The solutions are x=-5, x=9

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What is the measure of A

IgorC [24]

Answer: it is about 80%

Step-by-step explanation:

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Answer:

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