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3 years ago

14

How to do this question

1 answer:

umka2103 [35]3 years ago

8 0

-C=-4 $x^{2}$ +4 $x$ $+3$

This question is easy with some simple logic!

Hope this helps

:D

From Kenny

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3 3/4 / 2/5 = what? I'm struggling

Soloha48 [4]

Lets convert 3 3/4 into improper fraction first.

$3\frac{3}{4} = \frac{3 \times 4 + 3}{4} \\ = \frac{15}{4}$

$\frac{3\frac{3}{4} }{ \frac{2}{5} } \\ = \frac{15}{4} \div \frac{2}{5} \\ = \frac{15}{4} \times \frac{5}{2} \\ = \frac{75}{6} \\ = \frac{25}{2} \: or12 \frac{1}{2} or \: 12.5$

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3 years ago

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3 years ago

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Fred has 155 orange balloons Fred has 31 times more orange balloons than Dan how many orange balloons does Dan have?

olga2289 [7]

Answer:

5

Step-by-step explanation:

since Fred has 31 times more balloons then Dan, and Fred has 155, 155/31=5

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3 years ago

Bailey draws a circle on a large piece of paper. Then she cuts out the circle, cuts along the radius of the circle, and tapes th

Andre45 [30]

Answer:

The required equation shows the formula solved for h is $h=\frac{3V}{\pi r^2}$

Step-by-step explanation:

Consider the provided information.

The formula of volume of cone is: $V=\frac{1}{3}\pi r^2h$

Where V, is the volume of the cone with radius, r, and height, h.

Bailey knows the volume and radius of her cone, and she wants to determine the height.

In order to find the height of the cone Bailey need to solve the equation for h.

$V=\frac{1}{3}\pi r^2h$

Multiply both the sides by 3.

$3V=\pi r^2h$

Divide both the sides by πr².

$\frac{3V}{\pi r^2}=h$

$h=\frac{3V}{\pi r^2}$

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4 years ago

Help me with this, it's Pythagorean theorem.

Blizzard [7]

Step-by-step explanation:

Let x represent the missing side length.

By Pythagoras' Theorem,

We have x² + 12² = 13².

Therefore x² = 13² - 12² = 25 and x = 5.

(x = -5 is rejected as side lengths are positive)

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3 years ago

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