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kari74 [83]
4 years ago
15

Help please I’m stressed and tired only do circled ones

Mathematics
1 answer:
Aleks04 [339]4 years ago
5 0

Answer:

10. 48 degrees 11. Use explanation below. 12. 25 degrees 13.Use explanation below. 14. 63 degrees 15. Use explanation below. 16. 130.5 17. A. 48 degrees B. 90 degrees and C. 42 degrees 18. Explain

Step-by-step explanation:

10. All triangles angles add up to 180 degrees, so 100+32=132 and 180-132=48

11. Use the explanation above.

12. Using the rule above 88+57=145 and 180-145= 25

13. Use explanation above.

14. Add the two answers from 10 and 12. 48+25= 63

15. Use explanation above.

16. Using the triangle 180 degrees rule add 90 degrees (Angle a is a right angle which is always 90 degrees) to 40.5 degrees. 40.5 + 90= 130.5

17. You have angle A (48) angle B is a right angle aka 90 degrees and using the rule 90+ 48= 138 and 180-138= 42

18. I think you can explain it now (I hope)


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Evaluate the expression when x = 4.<br> 6(x + 8)
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Answer:

6x+48

Step-by-step explanation:

6(x+8)

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Charlie made the following table to record the height of each person in his family.
IRISSAK [1]

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4

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Since the question does not specify if you are rounding up or down, just round down to four from 4 1/6. 4 1/6 is closer to 4 than it is to 4 3/6 or 4 1/2.

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What is the area of the composite figure whose vertices have the following coordinates? (−1, 5) , (3, 5) , (7, 3) , (3, 0) , (−1
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We can see the figure as two triangles and a square.
 We have then:
 Area of the square:
 
A1 = (4) * (4)
 A1 = 16
 Area of the small triangle:
 
A2 = (1/2) * (4) * (1)
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 Area of the big triangle:
 
A3 = (1/2) * (5) * (4)
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At = A1 + A2 + A3
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 Answer:
 
The area of the figure is:
 
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Note: see attached image

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4 years ago
What is the shape of the cross section parallel to the base of the triangular pyramid?
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Convert the scientific notation into a standard form number, <br> 1.23 x 10-5
marusya05 [52]

Step-by-step explanation:

a^{-n}=\dfrac{1}{a^n}\\\\\text{therefore}\ 10^{-5}=\dfrac{1}{10^5}=\dfrac{1}{100000}=0.00001\\\\1.23\cdot10^{-5}=1.23\cdot0.00001=0.0000123

a\cdot10^{-n} - move the decimal point <em>n</em> place to the left

a\cdot10^n - move the decimal point <em>n</em> place to the right

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1.2\cdot10^5=1\underbrace{20000}_{5\to}=120,000\\\\1.2\cdot10^{-5}=0\underbrace{.00001}_{\leftarrow5}2=0.000012

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3 years ago
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