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posledela
3 years ago
9

Find the surface area. 13.5 in 9 In 9 in. 10 in.

Mathematics
2 answers:
n200080 [17]3 years ago
3 0

Answer:

486 in

Step-by-step explanation:

hsndbdndidien$ytgnxeyuiiw82usbbdbsk

alexandr402 [8]3 years ago
3 0
486 in is the surface area
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Salma made 6 identical necklaces, each having beads and a pendant. The total cost of the beads and pendants for all 6 necklaces
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Answer:

$3.30

Step-by-step explanation:

2.60*6= $15.60 beads per necklace

35.40-15.60= $19.80 total pendant

19.80/6= $3.30 per pendant

8 0
2 years ago
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What is the slope between 8,-7 and 5,-3
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-4/3 I believe is your answer.
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3 years ago
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The correct and best answer will be marked as brainiest
marta [7]

Answer:

x=10

m=3

Step-by-step explanation:

The angles are the same since the sides are the same length (isosceles triangle)

55 = 5x+5

Subtract 5

55-5 =5x+5-5

50 = 5x

Divide by 5

50/5 = 5x/5

10=x

The altitude is a perpendicular bisector so

5m-3 = 2m+6

Subtract 2m from each side

5m-3-2m = 2m+6-2m

3m-3 = 6

Add 3 to each side

3m-3 +3 =6+3

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Divide by 3

3m/3 = 9/3

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8 0
3 years ago
What is x squared 6x - 7 factorised?
lilavasa [31]
The factors would be (x +7) and (x - 1)
3 0
3 years ago
Below are the range and standard deviation for a set of data. Use the range rule of thumb and compare it to the standard deviati
Liula [17]

Solution: We are given:

Range =2.76

Standard-deviation=0.807

Now let's find the estimated value of standard deviation using the range rule of thumb. According to range rule of thumb, the estimate of standard deviation is:

S\approx \frac{2.76}{4}= 0.690

Therefore the estimated standard deviation is 0.690

is this an acceptable​ approximation?

Answer: c. Yes​, because the error of the range rule of​ thumb's approximation is less than​ 15%.

Explanation:

The difference between estimated standard deviation and actual standard deviation is:

0.807 - 0.690 = 0.117

Now let's find the percentage of error

\frac{0.117}{0.807} \times 100= 14.50\%.

Therefore, the error of the range rule of​ thumb's approximation is less than​ 15%.

4 0
3 years ago
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