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Rzqust [24]
3 years ago
8

Will mark brainliest question is in attachment

Mathematics
2 answers:
galben [10]3 years ago
8 0

Answer:

m<CBD = 68 degrees

Step-by-step explanation:

Add both of the given angle measures and set them equal to 90 degrees.

4x + 52 + 8x - 10 = 90    Combine like terms

12x + 42 = 90

      - 42  - 42                  Subtract 42 from both sides

12x = 48                           Divide both sides by 12

x = 4

Now plug this into the equation for m<CBD

4(4) + 52       Multiply

16 + 52          Add

68 degrees

If this answer is correct, please make me Brainliest!

Alinara [238K]3 years ago
6 0

Answer:

68 degrees

Step-by-step explanation:

You might be interested in
How do I find the measure of these two supplementary angles using algebra?
nikdorinn [45]

Answer:

70 and 110

Step-by-step explanation:

The two angles add to 180 degrees since they form a straight line

2x+10 +3x+20 =180

5x+30 = 180

Subtract 30 from each side

5x+30-30 =180-30

5x = 150

Divide by 5

5x/5 =180/5

x = 30

The left angle is 2x+10 = 2*30+10 = 60+10 =70

The right angle is 3x+20 = 3*30 +20 = 90+20 = 110

7 0
4 years ago
Two people are standing on opposite sides of a hill. Person A makes an angle of elevation of 65° with the top of the hill and pe
Artyom0805 [142]
The rest of the question is as following
What is the distance from person B to the top of the hill?
===================================================
Answer;
The attached figure represents the explanation of the problem.
So, it is required to find the distance BH
It will be calculated as following
∠A = 65°  and ∠B = 80°
∴ ∠H = 180° - (65° + 80° ) = 35°
But the side AB = 45
So, we can use the sine rule to find the side BH
\frac{AB}{sin \ H} = \frac{BH}{sin \ A}
BH =  \frac{sin \ A}{sin \ H} * AB
BH =  \frac{sin \ 65}{sin \ 35} * 45

∴ BH ≈ 71.1  feet

∴ The distance from person B to the top of the hill ≈ 71.1 feet

7 0
3 years ago
Read 2 more answers
A punch recipe has a ratio of 3 pints of sparkling water to 5 pints of fruit juice. How much sparkling water is there for each p
podryga [215]

The ratio of the problem is 3:5.

To solve for 5, divide both sides by 5.

3/5 = .60

5/5 = 1

The ratio is .60:1.

There are .60 pints of water for every 1 pint of fruit juice.

4 0
4 years ago
4.
miss Akunina [59]

Answer:  A. inverse variation; xy = 20

ANSWER

Step-by-step explanation:  Brainly

B) xy=20

Inverse because it is of the form y=k/x, intuitively you can see that as x increases y decreases, hence "inverse variation".

...............................................................................................................................................

Answer:

Option B is correct

Inverse variation , xy = 20

Step-by-step explanation:

Inverse variation states:

If  

then the equation is in the form of:

or

xy = k            ....[1]

As per the statement:

Given the data:

x : 2 4 8 12

y : 10 5 5/2 5/3

Let any value of x and y to find k:

x = 4 and y = 5

Substitute in [1] we have;

⇒20 = k

or

k = 20

then we get;

xy = 20

Check:

Substitute x = 12  and y = 5/3

⇒ true.

Therefore, the the data in the table represent a inverse variation and an equation to model the data in the table is, xy = 20

7 0
3 years ago
What is the median of the data set 30 52 68 65 69 61 68 75 85 78
Lera25 [3.4K]
Median is the number in the middle when all the numbers are put in order.
Let's do that first.
30 52 61 65 68 68 69 75 78 85
Now if there's 10 numbers, 2 numbers are in the middle.
By counting in 4 on both sides, we know the two numbers are both 68, so 68 is the median.
4 0
3 years ago
Read 2 more answers
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