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Marysya12 [62]
3 years ago
6

100 POINTS AND BRAINLIEST!! PRE CALC!

Mathematics
1 answer:
Elenna [48]3 years ago
3 0

Refer to the pic above.

Concepts used :

1. Trigonometric Properties

2. Domain limitation

3. assumption

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Find the
irinina [24]

Answer:

x = 32 degrees

Angle ABC (left one): 153 degrees

Angle CBD (right one): 27 degrees

Step-by-step explanation:

We know that the total angle will be 180 degrees, as it's a continuous straight line.

We can set the sum of our 2 angles equal to 180 degrees and solve for x.

(4x + 25) + (x - 5) = 180

4x + 25 + x - 5 = 180

4x + x + 25 - 5 = 180

5x + 20 = 180

5x = 160

x = 160/5 = 32

x = 32

Angle ABC:

4x + 25 = 4 * 32 + 25 = 128 + 25 = 153

153 degrees

Angle CBD:

x - 5 = 32 - 5 = 27

27 degrees

We can confirm this by adding the 2 angles together. We should get 180 degrees.

153 + 27 = 180

Checks out!

6 0
3 years ago
Read 2 more answers
What’s the difference
Alex

A. In 8,326, the 8 is in the thousands place, while in 840,210, the 8 is in the hundred-thousands place.

B. In 2,008, the 8 is in the ones place, while in 28,420, the 8 is in the thousands place.

C. In 284, the 8 is in the tens place, while in 32.098, the 8 is in the thousandths place.

D. In 48.97, the 8 is in the ones place, while in 32.80, the 8 is in the tenths place.

4 0
3 years ago
A score that is 7 under par in golf
andrezito [222]
The score for 7 under par is -7
8 0
4 years ago
Sara is a drummer in her school is marching band she wants to make a geometrically similar model of a snare drum for her stuffed
strojnjashka [21]

Answer:

Option B.

Step-by-step explanation:

Let the radius of the snare drum = r

and radius of the model = R

Ratio of the dimensions of the snare drum and the model = 1 : 4

So, \frac{r}{R}=\frac{1}{4}

Now as per question, dimensions of the snare drum is multiplied by a scale factor of \frac{1}{2}

Radius of the snare drum = \frac{r}{2}

Ratio of the radius of the snare drum and cylindrical model ,

\frac{\frac{r}{2}}{R} =\frac{1}{4}

\frac{r}{2R}=\frac{1}{4}

\frac{r}{R}=\frac{1}{2}

Therefore, the cylinder with Sara's dimensions will be geometrically similar but the scale factor will be 1 : 2

Option B is the answer.

6 0
3 years ago
Justine filled quart jars with 248 pints of juice. <br><br> How many quart jars did Justine need?
Marrrta [24]
1 pint is the same as half a quart. This means she will fit 2 pints in every jar. 248/2=124. She needs 124 jars.
3 0
3 years ago
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