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3 years ago

What's the ratio if you have 3.5 to 17

Mathematics

1 answer:

lukranit [14]3 years ago

3 0

=3.5:17
3.5×10 to remove decimal point then u multiply 17 by 10 too
=35:170
then you simply yo get 7:34

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Finger [1]

$(2x^2 -13x+7)-(1-12x)=\\
2x^2-13x+7-1+12x=\\
2x^2-x+6$

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3 years ago

A local charity is selling seats to a baseball game. Seats cost $24 each, and snacks cost an additional $6 each. The charity nee

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Answer:

They could sell 10 people one seat and 2 snacks each.

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Step-by-step explanation:

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2 years ago

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3 years ago

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Travka [436]

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3 years ago

Sandra throws an object straight up into the air with initial velocity of 38 ft per square from platform that is 30 ft above the

expeople1 [14]

Answer:

3 seconds.

Step-by-step explanation:

We have been given that Sandra throws an object straight up into the air with initial velocity of 38 ft per second from platform that is 30 ft above the ground.

To find the time it will take for object to hit the ground, we will use formula:

$h(t)=-16t^2+v_0t+h_0$ , where, $v_0$ represents initial velocity and $h_0$ represents initial height.

Upon substituting our given initial velocity and initial height, we will get:

$h(t)=-16t^2+38t+30$

We know that object will hit the ground, when height will be 0, so we will equate object's height equal to 0 and solve for t as:

$-16t^2+38t+30=0$

Divide by 2:

$-8t^2+19t+15=0$

Upon using quadratic formula, we will get:

$t=\frac{-b\pm\sqrt{b^2-4ac}}{2a}=\frac{-19\pm\sqrt{19^2-4(-8)(15)}}{2(-8)}$

$t=\frac{-19\pm\sqrt{361+480}}{-16}=\frac{-19\pm\sqrt{841}}{-16}$

$t=\frac{-19\pm29}{-16}$

$t=\frac{-19-29}{-16},t=\frac{-19+29}{-16}$

$t=\frac{-48}{-16},t=\frac{10}{-16}$

$t=3,t=-\frac{5}{8}$

Since time cannot be negative, therefore, it will take 3 seconds for object to hit the ground.

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3 years ago