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adoni [48]
4 years ago
11

Find B. Round to the nearest tenth!!!!! please help ASAP!!!!!!! trigonometry!!!!!​

Mathematics
1 answer:
neonofarm [45]4 years ago
4 0

Answer:  56.0°

<u>Step-by-step explanation:</u>

Use the Law of Cosines:

b² = a² + c² - 2ac · cos B

20² = 22² + 18² - 2(22)(18) · cos B

400 = 484 + 324 - 792 · cos B

400 = 804 - 792 · cos B

-404 = - 792 · cos B

0.5151 = cos B

cos ⁻¹ (0.5151) = B

55.99 = B

56.0 ≈ B

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How many times as great as the value of the digit 3 in 47,235 is the value of the digit 3 in 2,438,017
pashok25 [27]

Answer:

10^{3} times

Step-by-step explanation:

The value of 3 in 47,235 is 30 (ignoring the number that follows, 5)

The value of 3 in 2,438,017 is 30,000 (ignoring the numbers that follow)

The value of digit 3 in 2,438,017 is \frac{30,000}{30} = 10^{3} times greater than the value of 3 in 47,235

8 0
4 years ago
Which number rounds to 260 when rounded to the nearest 10?
mylen [45]
I looked it up and  got this........

What is 260 rounded to the nearest ten?
Here we will tell you what 260 is rounded to the nearest ten and also show you what rules we used to get to the answer. First, 260 rounded to the nearest ten is:
260
Remember, we did not necessarily round up or down, but to the ten that is nearest to 260.
When rounding to the nearest ten, like we did with 260 above, we use the following rules:
A) We round the number up to the nearest ten if the last digit in the number is 5, 6, 7, 8, or 9.
B) We round the number down to the nearest ten if the last digit in the number is 1, 2, 3, or 4.
C) If the last digit is 0, then we do not have to do any rounding, because it is already to the ten.

3 0
3 years ago
PLEASE help me with this problem and explain the steps you used.
Bad White [126]
I hope this helps you




14= 2/3 (9y-15) divided 2 each sides



7= 9y-15/3


7.3= 9y-15


21+15= 9y


36= 9y


y= 4

7 0
4 years ago
Determine the value of y, if x is –9.<br> y = |x|-7
iren [92.7K]
Answer:

y=|x|-7
If x=-9 then...
y=|-9|-7
First get the absolute value of -9
y=9-7
Subtract, and your answer is...
y=2
7 0
3 years ago
A bakery makes 40 different flavors of muffins. 25% of the flavors have chocolate as one of the ingredients. Draw a tape to show
kobusy [5.1K]

Answer:

10

Step-by-step explanation:

A bakery makes 40 different flavors of muffins.

25% of the flavors have chocolate as one of the ingredients.

Convert 25% to fraction:

25\%=\dfrac{25}{100}=\dfrac{1}{4}

So, there are

40\cdot \dfrac{1}{4}=10

muffins which have chocolate as one of the ingredients.

In attached tape diagram:

green - with chocolate

blue - without chocolate

6 0
3 years ago
Read 2 more answers
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