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3 years ago

Need some help with this question

Mathematics

1 answer:

Aliun [14]3 years ago

4 0

3 1/3, 7-3 2/3=3 1/3, use absolute value

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Sue at 30 cherries. She ate 5 times as many cherries as bob. How many cherries did bob eat

Fantom [35]

Answer:

Step-by-step explanation:

6 times 5 is 30. You would've divided 30 by 5

7 0

3 years ago

Read 2 more answers

The line through (6,-6) with slope 1/2 in point-slope form ?

aleksandrvk [35]

Answer: $y + 6 = \frac{1}{2}(x - 6)$

Step-by-step explanation:

Point-slope formula: $y - y1 = m(x - x1)$

Plug in the numbers: $y - -6 = \frac{1}{2}(x-6)$

Clear the double negatives: $y + 6 = \frac{1}{2}(x - 6)$

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3 years ago

Margie is standing on a bridge looking at the river below. She throws a rock over the bridge with an initial

Marina CMI [18]

<h2>Explanation:</h2><h2></h2>

Here we know that Margie is standing on a bridge looking at the river. She throws a rock over the bridge with an initial velocity of 60 ft/sec. The height, h, of the rock at the rime t seconds after it was thrown can be modeled by the equation:

$h(t) = -16t^2+60t+72$

To calculate how long will it take for the rock to reach the surface of the water, we need to set $h(t)=0$ . So:

$0 = -16t^2+60t+72 \\ \\ \\ \text{Using quadratic formula}: \\ \\ t=\frac{-b \pm \sqrt{b^2-4ac}}{2a} \\ \\ \\ a=-16 \\ \\ b=60 \\ \\ c=72 \\ \\ \\ t=\frac{-60 \pm \sqrt{60^2-4(-16)(72)}}{2(-16)} \\ \\ t=\frac{-60 \pm \sqrt{60^2-4(-16)(72)}}{2(-16)} \\ \\ t=\frac{-60 \pm \sqrt{8208}}{-32} \\ \\ t_{1}=4.70 \\ \\ t_{2}=-0.95$

Given that time can't be negative, we just choose the positive value. Therefore, <em>it will take 4.70 seconds for the rock to reach the surface water.</em>

6 0

3 years ago

Start at -3 and add 10 number sequence

galben [10]

Answer:

-3,7,17,27,37,47,57,67,77,87,97,107

Step-by-step explanation:

You add 10 to -3 which gives you 7. You continue adding. This sequence goes on forever. You just keep adding 10.

I hope this helps!

5 0

2 years ago

What are the roots of the polynomial function? F(x) = x3 + 3x2 - 9x + 5

QveST [7]

The roots are 1, 1 again, and -5

3 0

3 years ago