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AleksAgata [21]
4 years ago
15

Find the measure of CD

Mathematics
2 answers:
sasho [114]4 years ago
7 0
I think the answer is 30
maksim [4K]4 years ago
6 0
The answer that I got is 30
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find the measure of each angle acute angle in a right triangle where the measure of one acute angle is twice the difference of t
Marina86 [1]

Answer:

The measures of the acute angles are 38 and 52 degrees.

Step-by-step explanation:

In a right triangle, there are three angles, a right angle and two acute angles. In every traingle, the sum of the measures of the angles is 180 degrees. Let's call the acute angles a and b.

a + b +90 = 180

The problem also says that one angle is twice the difference of the other angle and 12. That would look like this:

a = 2(b-12)

Now we have two equations. If we simplify them, we get these:

\left \{ {{a=90-b} \atop {a=2b-24}} \right.

Now you can substitute a in the first equation for a in the second equation

90-b=2b-24

Add b to both sides of the equation

90 = 3b-24

Add 24 to both sides

114 = 3b

Divide both sides by 3

38 = b

Now, you can substitute 38 for b in the first equation and simplify.

a = 90-38

a=52

Therefore,

a=52, and b=38

Don't forget to like and make it the brainliest!

3 0
3 years ago
Read 2 more answers
A cylinder with a diameter of 10 inches (in.) and a cube are shown.
Scorpion4ik [409]

Answer:

C

Step-by-step explanation:

the volume of the cylinder is 3769.91

the volume of the cube is 1000

so the cylinder's volume is clearly larger than the cube's volume.

7 0
3 years ago
Area of square floor is 100 square centimeters,and the scale of the drawing is 1 centimeter:2ft,what is the area of the actual f
Taya2010 [7]
100 square centimeters means the dimensions are 10x10
but the actual floor will be 1cm:2ft
so 10cm=20feet
making the dimensions 20feetx20feet
the area of the actual floor is 400 feet
4 0
4 years ago
For problem number four on the paper I’m confused I don’t know how to do the table with decimals can someone please explain how
Lostsunrise [7]

Answer:

$7.00

Step-by-step explanation:

2.10 \div 6 = 0.35

4a) 1 oz of coffee is equal to 0.35c, which is consistent with everything in the table.

4b)Knowing this, if we have 20 oz of coffee, and we multiply it by 0.35, we will get how much it costs for this cup.

20*0.35 = 7.00

Hope this makes sense and feel free to ask questions!

6 0
2 years ago
Evaluate: 5-3[2+(-5)]2-8
trasher [3.6K]

Answer:

15

Step-by-step explanation:

5 - 3[ 2 + (-5)] 2 - 8

Subtract 5 from 2 to get −3.

5 - 3 (-3) × 2 - 8

Multiply 3 and −3 to get −9.

5 - (-9 × 2) - 8

Multiply −9 and 2 to get −18.

5 - (-18) - 8

The opposite of −18 is 18.

5 + 18 - 8

Add 5 and 18 to get 23.

23 - 8

Subtract 8 from 23 to get 15.

15

Hope it helps and have a great day! =D

~sunshine~

7 0
2 years ago
Read 2 more answers
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