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nataly862011 [7]
3 years ago
11

If a stem and leaf has no number on one side what do you do

Mathematics
1 answer:
iVinArrow [24]3 years ago
8 0
You just leave it blank
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Find the measure of the indicated angle to the nearest degree.
fredd [130]

Step-by-step explanation:

Let the measure of required angle be x degree

\therefore \tan \: x =  \frac{33}{56}  \\  \\ \therefore \tan \: x =  0.589285714  \\  \\ \therefore  \: x =   {\tan}^{ - 1} (0.589285714)  \\  \\  \therefore  \: x =   {\tan}^{ - 1} ( \tan \: 30.510237394 \degree) \\  \\    \huge \red{ \boxed{\therefore  \: x =   31\degree}}

Thus, first option is the correct answer.

3 0
3 years ago
Expand the following - (-3x + y + z) square​
lbvjy [14]

Answer:

9x square + y squared + z squared

Step-by-step explanation:

Multiply all the numbers by '-'. Then square them all

3 0
3 years ago
SV is angle bisector of
DochEvi [55]

Answer:

<h3>Sv is angle bisector of rst.</h3>
8 0
2 years ago
How many integers are there that consist of four digits (from 1000 to 9999) where the first digit is a 5 or an 8 and the third d
Ostrovityanka [42]

Answer:

1600 integers

Step-by-step explanation:

Since we have a four digit number, there are four digit placements.

For the first digit, since there can either be a 5 or an 8, we have the arrangement as ²P₁ = 2 ways.

For the second digit, we have ten numbers to choose from, so we have ¹⁰P₁ = 10.

For the third digit, since it neither be a 5 or an 8, we have two less digit from the total of ten digits which is 10 - 2 = 8. So, the number of ways of arranging that is ⁸P₁ = 8.

For the last digit, we have ten numbers to choose from, so we have ¹⁰P₁ = 10.

So, the number of integers that can be formed are 2 × 10 × 8 × 10 = 20 × 80 = 1600 integers

5 0
3 years ago
Given tan θ = 2 and sin θ &lt; 0. Find cos(θ +pi/4)
Lera25 [3.4K]

Answer:

√10 / 10

Step-by-step explanation:

tan θ > 0 and sin θ < 0, so θ is in quadrant III.  That means cos θ < 0.

cos(θ + π/4)

Use angle sum formula.

cos θ cos(π/4) − sin θ sin(π/4)

½√2 cos θ − ½√2 sin θ

Factor.

½√2 cos θ (1 − tan θ)

½√2 cos θ (1 − 2)

-½√2 cos θ

Write in terms of secant.

-½√2 / sec θ

Use Pythagorean identity (remember that cos θ < 0).

-½√2 / -√(1 + tan²θ)

-½√2 / -√(1 + 2²)

½√2 / √5

√10 / 10

5 0
3 years ago
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