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4 years ago

A triangle has side lengths measuring 20 cm, 5 cm, and n cm. Which describes the possible values of n?

Mathematics

2 answers:

Nuetrik [128]4 years ago

4 0

Answer:

D. 15 < n < 25 is the answer on edge

DENIUS [597]4 years ago

3 0

The answer is D. 15 < n < 25.

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7. B) please! i’m not sure i quite understand how to do it

aleksley [76]

Answer:

3cm

Step-by-step explanation:

those double hashes on those 5 sides mean they are equal. so essentially you have 5 sides that measure 3/10cm and one side that measures 1 1/2cm.

3/10 * 5 = 15/10 = 1 1/2cm

1 1/2cm + 1 1/2cm = 3cm

7 0

3 years ago

13a+9+9b+12a-7b Combine like terms for each expression

Lana71 [14]

Answer:

13a9 + 12a + 2b

Have a nice day!

(this answer is wrong, please do not use)

Step-by-step explanation:

6 0

3 years ago

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Easy way to solve volume of cone

Zinaida [17]

A cone always contain a right angle.

To solve for the volume of a cone, we need to get the radius of the cone and its height.

Volume of a cone = π r² h/3

radius is the line from the center of the circle of the cone going to the edge of the circle.

height is the measurement of the cone from its pointy tip going downward.

Assuming the radius of the cone is 3 in. and its height is 6 inches.

Volume of a cone = π * r² * h/3
V = 3.14 * (3in)² * 6in/3
V = 3.14 * 9in² * 2in
V = 56.52 in³

8 0

4 years ago

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What is the value for x on a triangle if one side is 13 and one side 12

dlinn [17]

The Value of X is 10.
KhanAcademy.org has some great explanation videos on their website and they have a YouTube channel.
Here is an explanation for the answer.

6 0

3 years ago

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How do I solve this question?

zubka84 [21]

Answer:

$f(x) = \frac{108}{7} (\frac{7}{6})^x$ or $f(x) = 15.429(1.167)^x$

Step-by-step explanation:

No need for a calculator.

Assuming that the equation is in the form $y = ab^x$ , we can plug in points to get our equation. For ease, let's use (1,18) and (2,21). When plugging these points in, we get $18 = ab^1, 21 = ab^2$ . Now let's divide the equations to get rid of $a$ : $\frac{21 = ab^2}{18 = ab^1} = \frac{21}{18} = \frac{7}{6} = b$ . Now that we have $b$ , we can plug in the value we just calculated to solve for $a$ : $18 = a(\frac{7}{6} )^1$ , and solving for $a$ , we get $a = \frac{108}{7}$ .

So the $f(x) = (\frac{108}{7})(\frac{7}{6} )^x$

This equation in decimal form (rounded to the nearest thousandth) is $f(x) = 15.429(1.167)^x$ .

hope this helped! :)

4 0

2 years ago