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wel
3 years ago
12

Estimate the sum by rounding each number to the nearest half or whole.

Mathematics
1 answer:
alexdok [17]3 years ago
6 0
If you add them together the sum is 8 1/8 and if you round it it’s 8
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Solve the missing side. Find the missing side. Round to the nearest tenth. Please show the work. Part 2. #5-8​
enyata [817]

Answer:

5. 6.1 units

6. 29.4 units

7. 12.8 units

8. 29.1 units

Step-by-step explanation:

5. We have the opposite and adjacent sides here for angle 21 degrees. So we need to use tangent, which is opposite / adjacent:

tan(21)=x/16

x=16*tan(21) ≈ 6.1 units

6. We have the opposite and hypotenuse sides here for angle 33 degrees. So we need to use sine, which is opposite / hypotenuse:

sin(33)=16/x

x=16/sin(33) ≈ 29.4 units

7. We have the opposite and adjacent sides here for angle 37 degrees. So we need to use tangent, which is opposite / adjacent:

tan(37)=x/17

x=17*tan(37) ≈ 12.8 units

8. We have the opposite and hypotenuse sides here for angle 31 degrees. So we need to use sine, which is opposite / hypotenuse:

sin(31)=15/x

x=15/sin(31) ≈ 29.1 units

Hope this helps!

4 0
3 years ago
Read 2 more answers
Emily Runs 10 ft./s Jake runs 334 feet and 26 seconds Katie runs 1 mile in 596 seconds and Stephanie runs 580 feet in one minute
shutvik [7]

Jake runs fastest

Step-by-step explanation:

The given is:

  • Emily Runs 10 ft./s
  • Jake runs 334 feet in 26 seconds
  • Katie runs 1 mile in 596 seconds
  • Stephanie runs 580 feet in one minute

We need to find who runs fastest

To solve the problem we must to find the unit rate of each one in feet per second

∵ Jake runs 334 feet and 26 seconds

- To find the unite rate divide 334 feet by 26 seconds

∴ Jake's rate = 334 ÷ 26 = 12.85 ft./s

∵ Katie runs 1 mile in 596 seconds

- Change the mile to feet

∵ 1 mile = 5280 feet

∴ Katie runs 5280 feet in 596 seconds

- To find the unite rate divide 5280 feet by 596 seconds

∴ Katie's rate = 5280 ÷ 596 = 8.86 ft./s

∵ Stephanie runs 580 feet in one minute

- Change the minute to seconds

∵ 1 minute = 60 second

∴ Stephanie runs 580 feet in 60 seconds

- To find the unite rate divide 580 feet by 60 seconds

∴ Stephanie's rate = 580 ÷ 60 = 9.67 ft./s

∵ Emily's rate is 10 ft./s

∵ Jake's rate is 12.85 ft./s

∵ Katie's rate is 8.86 ft./s

∵ Stephanie's rate is 9.67 ft./s

- The fastest one who has the greatest rate

∵ Jake's rate is the greatest

∴ Jake runs the fastest

Jake runs fastest

Learn more:

You can learn more about the word problems in brainly.com/question/1634276

#LearnwithBrainly

6 0
3 years ago
The intersection of two planes (in geometry) that do not collide (if it exists) is what
butalik [34]

Answer:

It's called a line in math

4 0
4 years ago
Which of the following is the best estimate of square root <br> 90
valkas [14]
The answer should be 9
3 0
3 years ago
F(x)= x+3<br> h(x)= x^2+4<br><br> Find (f•h)(x)
Dmitrij [34]

Answer:

x³+3x²+4x+12

Step-by-step explanation:

you are going to write both equations and distribute. if there are like terms, combine them and then put it order.

(x + 3) × (x² + 4)

x³ + 4x + 3x² + 12

when putting in order, you want the highest power to the left and then the lowest power to the right.

so

x³+3x²+4x+12

4 0
3 years ago
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