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Alika [10]
3 years ago
14

15+15+15=45 7+7+7=21 4+4+4=12 4+15×7=?​

Mathematics
1 answer:
vesna_86 [32]3 years ago
3 0

Answer:

109

Step-by-step explanation:

15+15+15= 45

7+7+7=21

4+4+4=12

4+15×7=109

I hope this helps!

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There are 44 students going to see a movie. Each row holds 8 people. How many rows do they fill up?
melomori [17]

Answer:

5.5 or 5 1/2

Step-by-step explanation:

44 students ÷ 8 rows = 5.5

6 0
3 years ago
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If a shape is being dilated with a scale factor of 5 will be larger or smaller than original figure
Valentin [98]

Answer:

Larger

Step-by-step explanation:

It will Be larger because a factor lower then 5 will make the dilatetion become smaller

8 0
2 years ago
Maths<br><br> Pls help me!!!!
Leokris [45]

9514 1404 393

Answer:

  P(0, 4), Q(-3, 0)

Step-by-step explanation:

To find the y-coordinate of P, replace x with 0 and solve for y:

  3y = 12

  y = 4 . . . . . divide by 3

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To find the x-coordinate of Q, replace y with 0 and solve for x:

  -4x = 12

  x = -3 . . . . . divide by -4

Then the intercepts are P(0, 4) and Q(-3, 0). The line is drawn through those points for the indicated values of x.

8 0
3 years ago
The height, h, in feet of a rock above the ground is given by the equation h = -16t^2 + 24t + 16, where t is the time in seconds
boyakko [2]

The rock will hit the ground at 2 seconds.

Explanation:

Given that the height, h, in feet of a rock above the ground is given by the equation h=-16t^2+24t+16, where t is the time in seconds after the rock is thrown.

We need to determine the time at which the rock will hit the ground.

To determine the time, let us equate the height h = 0 in the equation h=-16t^2+24t+16, we get,

0=-16t^2+24t+16

Switch sides, we have,

-16 t^{2}+24 t+16=0

Let us solve the equation using the quadratic formula.

Thus, we have,

t=\frac{-24 \pm \sqrt{24^{2}-4(-16) 16}}{2(-16)}

Simplifying, we get,

t=\frac{-24 \pm \sqrt{576+1024}}{-32}

t=\frac{-24 \pm \sqrt{1600}}{-32}

t=\frac{-24 \pm 40}{-32}

Hence, the two values of t are

t=\frac{-24 + 40}{-32}   and   t=\frac{-24 -40}{-32}

Simplifying the values, we get,

t=\frac{16}{-32}  and  t=\frac{-64}{-32}

Dividing, we get,

t=-\frac{1}{2}  and  t=2

Since, t cannot negative values, we have,

t=2

Thus, the rock will hit the ground at 2 seconds.

8 0
3 years ago
–5(–2) = <br> please help :) :D
ioda

Answer:

10

Step-by-step explanation:

-5 * -2 = 10

cuz - * - = +

and 5 * 2 = 10

hence 10

3 0
2 years ago
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