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3 years ago

Heyyy.... can someone help plz thx

Mathematics

2 answers:

olga_2 [115]3 years ago

6 0

3 and -4

Step-by-step explanation:

hope this helps!

blagie [28]3 years ago

4 0

Answer:

When a point gets reflected across the x-axis, the sign of its y-coordinate changes so the coordinates of Q' are (3, 4).

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One fifth of the runs made in a cricket match

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3 years ago

The expression 4g gives the number

jeka57 [31]

Answer: 16 quarts.

Step-by-step explanation:

1 quart = 1/4 gallon.

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4 x 4 = 16.

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3 years ago

Suppose a flare is shot from the top of a 120 foot building at a speed of 160 feet per second. The equation h = ?16t + 160t + 12

insens350 [35]

Answer:

The time taken for the flare to hit the ground is approximately 10.7 seconds.

Step-by-step explanation:

Given : Suppose a flare is shot from the top of a 120 foot building at a speed of 160 feet per second. The equation $h =- 16t^2+ 160t + 120$ models the h height at t seconds of the flare.

To find : How long will it take for the flare to hit the ground?

Solution :

The equation $h =- 16t^2+ 160t + 120$ models the h height at t seconds of the flare.

The flare to hit the ground when h=0.

Substitute in the equation,

$-16t^2+ 160t + 120=0$

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

Where, a=-16, b=160 and c=120

$x=\frac{-160\pm\sqrt{160^2-4(-16)(120)}}{2(-16)}$

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$x=\frac{-160+182.42}{-32},\frac{-160-182.42}{-32}$

$x=−0.70,10.70$

Reject the negative value.

Therefore, the time taken for the flare to hit the ground is approximately 10.7 seconds.

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3 years ago

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3 years ago

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Parker was able to pay for 60% of his college tuition with his scholarship. The remaining $10,000 he paid for with a student loa

irga5000 [103]

Answer: The cost of Parker's tuition was $25000

Step-by-step explanation:

Let x represent the cost of Parker's tuition.

Parker was able to pay for 60% of his college tuition with his scholarship. This means that the amount of his college tuition that he was able to pay is 60/100 × x = 0.6×x = 0.6x

The remaining $10,000 he paid for with a student loan. The amount remaining is x - 0.6x = 0.4x. This means that

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3 years ago

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