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1 year ago

Please help me with this math question

Mathematics

2 answers:

Arturiano [62]1 year ago

5 0

Answer:

145

Step-by-step explanation:

168-23 = 145

i hope this helps :)

katen-ka-za [31]1 year ago

5 0

Answer:

145

Step-by-step explanation:

168-23 = 145

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I think the answer is letter B.80

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3 years ago

A football thrown by a quarterback follows a path given by hx=-0.0095x2+x+7, where h is the height of the ball in feet and x is

Wewaii [24]

Answer:

The ball can be knocked down at a horizontal distance of 3.09 feet or 102.17 feet from the marshal.

Step-by-step explanation:

We have the function that represents the height h (x) of the ball $h(x) = -0.0095x^2 + x + 7$

Where x is the horizontal distance of the ball.

We want to find the horizontal distance the ball is at (horizontal distance between the field marshal and the ball) when it is at a height of 10 feet.

To do this, we must do h (x) = 10

$10 = -0.0095x^2 + x + 7\\0 = -0.0095x^2 + x -3$

Now we must solve the second degree equation. For this we use the formula of the resolvent:

$\frac{-b + \sqrt{b ^ 2 - 4 * a * c}}{2a}$

and

$\frac{-b - \sqrt{b ^ 2 - 4 * a * c}}{2a}$

$\frac{-1 + \sqrt{1 ^ 2 - 4 * (- 0.0095)(-3)}} {2 (-0.0095)} = 3.09$ ft

and

$\frac{-1 - \sqrt{1 ^ 2 - 4 * (- 0.0095)(-3)}} {2 (-0.0095)} = 102.17$ ft

Then, the ball can be knocked down at a horizontal distance of 3.09 feet or 102.17 feet from the marshal.

7 0

3 years ago

(PLEASE HELP!!)

Flauer [41]

Answer:

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

I really need help with this question it’s the only one i’ve failed , someone mind lending a hand ??

Svetach [21]

All are congruent segments. Beacuse congruent segments are two segments that are equal in length.

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3 years ago

There are 7 boxes stacked on the floor in the math department supply closet. Each box has a height of 10 inches or 8 inches. The

Orlov [11]

Answer:

5 of the 7 boxes are 8 inches in height

Step-by-step explanation:

Mathematically;

1 ft = 12 inches

So, 5 ft will measure 5 * 12 = 60 inches

So from what we have ,

We want to combine 8 and 10 inches to give 60 inches total

Let the number of 10 inches be x and the number of 8 inches be y

Mathematically;

x + y = 7 •••••(i)

10x + 8y = 60 ••••(ii)

From equation i, x = 7-y

Put this in equation ii

10(7-y) + 8y = 60

70-10y + 8y = 60

70-60 = 10y-8y

2y = 10

y = 10/2

y = 5

5 0

3 years ago