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kvasek [131]
3 years ago
8

Help please this is due soon! I need you to show the work as well <3 pic below

Mathematics
1 answer:
Dafna1 [17]3 years ago
7 0

Answer:

perimeter: 4x+2 area: x^2+x

Step-by-step explanation:

for perimeter, you add x+x+x+x+1+1, which is 4x+2

for area, you multiply x*x+1, which would be x^2+x

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9. Find the area of the shaded region below,
Mumz [18]

Answer:

80

Step-by-step explanation

12x12 divided by 9 x 5

7 0
3 years ago
A hypothesis regarding the weight of newborn infants at a community hospital is that the mean is 6.6 pounds. A sample of seven i
Elenna [48]

Answer:

The alternate hypothesis is that newborn infants has a mean weight of 7.56 pounds.

Step-by-step explanation:

Let's find an alternate hypothesis by using the formula:

mean=(sum of all data)/(number of data points) so:

sum of all data=9.0+7.3+6.0+8.8+6.8+8.4+6.6=52.9 and:

number of data points=7 so:

mean=52.9/7=7.56 pounds

The alternate hypothesis is that newborn infants has a mean weight of 7.56 pounds.

4 0
3 years ago
WILL MARK BRAINLIEST PLS HELP ITS DUE
Shalnov [3]

Step-by-step explanation:

The volume of cement in cubic feet that the crew needs to fill the patio is 55 cubic feet.

I am pretty sure

4 0
3 years ago
Read 2 more answers
A cylindrical metal pipe has external diameter of 6cm and internal diameter of 4cm. Calculate the volume of metal in a pipe of l
ArbitrLikvidat [17]

Answer:

volume is 1570 cm³

mass is 12560 g

Step-by-step explanation:

1m = 100 cm

the volume is :

1/4 x \pi x 6² x 100 - 1/4 x \pi x 4² x 100

= 900 \pi - 400 \pi              { v = 1/4 \pi d²h }

= 500 \pi

= 500 x 3.14

= 1570 cm³

the mass of the pipe is:

1570 x 8 = 12560 grams

5 0
2 years ago
Find the value of 1÷3x when X=1​
Keith_Richards [23]

1÷3x when x=1

1÷3×1=1÷3≈0.67

8 0
3 years ago
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