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Zanzabum
4 years ago
12

What is 79.7 rounded to the nearest ten?

Mathematics
2 answers:
eduard4 years ago
7 0
80.0


Для этого надо будет

Shalnov [3]4 years ago
5 0

Answer:

80

Step-by-step explanation:

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What is the mad of the data set?
victus00 [196]
Standard Deviation: 3.5637059362411 Mean:(Average) 9.8 Mad:(Mean Absolute Deviation) 2.4 So the answer is 2.4
5 0
4 years ago
A florist was looking at her flower order. The ratio of roses to sunflowers was 4 to 9. When she was done, she realized there we
IRINA_888 [86]

Answer:

52 roses and 117 sunflowers

Step-by-step explanation:

Since the ratio of roses to sunflowers is 4:9, we can represent how many there are of each as 4x and 9x, respectively. We know that there are 65 more sunflowers than roses, so we can set up the following equation to solve for x:

4x+65=9x

Solving for x, we get:

4x+65=9x

4x+65-4x=9x-4x (Subtract 4x from both sides of the equation to isolate x)

65=5x (Simplify)

5x=65 (Symmetric Property of Equality)

\frac{5x}{5}=\frac{65}{5} (Divide both sides of the equation by 5 to get rid of x's coefficient)

x=13 (Simplify)

Therefore, since x=13, we know that there are 4x=4*13=52 roses and 9x=9*13=117 sunflowers. Hope this helps!

4 0
3 years ago
You are given that cos(A)=−5/13, with A in Quadrant II, and sin(B)=7/25, with B in Quadrant II. Find cos(A+B). Give your answer
blsea [12.9K]

The value of cos(A+B) is 36/325.

<h3>What is Trigonometry?</h3>

The branch of mathematics concerned with specific functions of angles and their application to calculations.

Given:

cos(A)=−5/13

sin(B)=7/25

Now Using identity,

sin²A + cos² A= 1

sin A= √1 - cos² A

sin A = √1- 25/169

sin A= √144/169

sin A= 12/13

Again,

sin²B + cos² B= 1

cos B= √1 - sin² B

cos B = √1- 49/625

cos B= √576/625

cos B= -24/25

Now,

cos (A +B) = cos A cos B - sin A sin B.

= -5/13* (-24/25) - 12/13* 7/25

=  120/325 - 84/325

= 36/325

Hence, the value of cos (A + B) is 36/325.

Learn more about this concept here:

brainly.com/question/17056960

#SPJ1

3 0
2 years ago
3. What unit would you use to measure the weight of a school bus? *
larisa [96]

Answer:

Tons

Step-by-step explanation:

A school bus should be weighed in tons due to the fact that it definitely weighs more than a few pounds.

4 0
3 years ago
What number is halfway between 8.270 and 8.280? The answer is 8.275 hope this helps
Lilit [14]

Answer:

8.275

Step-by-step explanation:

Thanks bro!

5 0
3 years ago
Read 2 more answers
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