3 years ago

Are 8,17 and 3,11 proportional

Mathematics

1 answer:

Rom4ik [11]3 years ago

8 0

No bc if u use cross multiplication 8 times 11 is not equal to 17 times 3.

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Paige has 4 more balloons than Zoee. Emma has 2 more balloons than Paige. Altogether they have 100 balloons. How many does each

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3 years ago

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Elenna [48]

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3 years ago

2. A sphere has surface area 16π. Find the radius of the sphere.

KiRa [710]

Answer:

The answer to your question is: 2.29 units

Step-by-step explanation:

Data

Volume = 16π

radius = ?

Formula

V = $\frac{4}{3}π r^{3}$

Process

16 π = $\frac{4}{3}π r^{3}$

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3 years ago

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Tomtit [17]

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Solve x^2 +14x=15 by completing the square

ivanzaharov [21]

Answer:

x = -15 and x = 1

Step-by-step explanation:

Since we have to use the complete the square method, we first need to rewrite the equation in the form $x^{2}+2ax+a^{2}=(x+a)^{2}$ .

This results in $x^{2} + 14x + 7^{2} = 15 + 7^{2}$ .

Next, we simplify the equation to get $x^{2} +14x+7^{2} = 64$ .

Factoring the left side gives us $(x+7)^{2} = 64$ .

Finally we solve the equations: $x+7=\sqrt{64}$ and $x+7=-\sqrt{64}$ .

This gives us x=1, and x=-15

6 0

3 years ago

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