3 years ago

HELP DUE SOON PICK ONE

Mathematics

1 answer:

konstantin123 [22]3 years ago

4 0

No this the answer to your question

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How to solve this problem?

cluponka [151]

have you tried 42 because it's a 90 degree triangle and 30+18+42 equals 90

7 0

3 years ago

Find the area of the figure.

Sergio039 [100]

Answer:

24 units^2

Step-by-step explanation:

bc=6

ab=8

area of a triangle: b*l/2

6*8/2=24

3 0

2 years ago

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The points A BC :(2, 2,1), :(1,1,3), :(2,0,5) − are the vertices of a right triangle. The radius of the sphere with center at th

ElenaW [278]

Answer:

r=1

Step-by-step explanation:

First we need to know the length of each side of the triangle, so we use the formula of the vector modulus:

$|AB|= \sqrt{(b_{1}-a_{1})^{2}+(b_{2}-a_{2})^{2}+(b_{3}-a_{3})^{2}$

By doing so, we find:

$|AB|=\sqrt {6}\\|BC|=\sqrt {6}\\|AC|=2\sqrt {5}$

With this we know that the triangle is not right, but, we assume the longest side as the hypotenuse of the problem.

As we have two equal sides, we know that the line between point |AB| and the center of the hypotenuse is perpendicular, therefore, we can calculate it using Pythagoras theorem:

$|BC|^{2}=r^{2}+(\frac{|AC|}{2})^{2}\\\\r^{2}=|BC|^{2}-(\frac{|AC|}{2})^{2}\\\\r^{2}=(\sqrt{6})^{2}- (\frac{2\sqrt{5}}{2})^{2}\\\\r^{2}=6-5=1\\r=1$

4 0

2 years ago

A concrete mix calls for 3 buckets of sand for every gallon of water. How much water is needed for 1 bucket of sand?

mojhsa [17]

Step-by-step explanation:

Write a proportion:

3 buckets / 1 gallon = 1 bucket / x gallons

Cross multiply and solve:

3x = 1

x = 1/3

You need 1/3 of a gallon of water.

8 0

3 years ago

The perimeter of a square is 2 feet. how many inches long is each side of the square?

Yuki888 [10]

Perimeter of a square=4*side length
2=4*side length
2/4=side length
.5 or 1/2=side length

Hope this helps!

4 0

3 years ago

Read 2 more answers