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Arte-miy333 [17]
3 years ago
14

Can I get some help ​

Mathematics
1 answer:
Cloud [144]3 years ago
4 0
The answer should be B.
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Helpp plsssss my sis needs it
harkovskaia [24]

Answer:

10÷7 = 1 3/7

3÷15= 1/5

3÷5= 3/5

7÷10= 7/10

Step-by-step explanation:

8 0
2 years ago
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Vanessa draws one side of equilateral AABC on the coordinate plane at points A(-2, 1) and B(4,1). What are the possible coordina
natulia [17]

Answer:

Step-by-step explanation:

Answer E is the only one that is close

7 0
3 years ago
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Nu is designing a rectangular sandbox.The bottomm is 16 square feet.Which dimensions require the least amount of materail for th
zzz [600]

Given Information:  

Area of rectangle = 16 square feet

Required Information:  

Least amount of material = ?

Answer:

x = 4 ft and y = 4 ft

Step-by-step explanation:

We know that a rectangle has area = xy and perimeter = 2x + 2y

We want to use least amount of material to design the sandbox which means we want to minimize the perimeter which can be done by taking the derivative of perimeter and then setting it equal to 0.

So we have

xy = 16  

y = 16/x

p = 2x + 2y

put the value of y into the equation of perimeter

p = 2x + 2(16/x)

p = 2x + 32/x

Take derivative with respect to x

d/dt (2x + 32/x)

2 - 32/x²

set the derivative equal to zero to minimize the perimeter

2 - 32/x² = 0

32/x² = 2

x² = 32/2

x² = 16

x = \sqrt{16} = 4 ft

put the value of x into equation xy = 16

(4)y = 16

y = 16/4

y = 4 ft

So the dimensions are x = 4 ft and y = 4 ft in order to use least amount of material.

Verification:

xy = 16

4*4 = 16

16 = 16 (satisfied)

7 0
3 years ago
Simplify the expression and then evaluate it for the given value of the variable:
skad [1K]

Answer:

25.9

Step-by-step explanation:

12+7x−(1−3) (evaluate parentheses first)

= 12+ 7x - (-2)

= 12+ 7x + 2

= 14+ 7x

When x = 1.7, equation becomes

14+ 7(1.7)

= 14 + 11.9

= 25.9

7 0
3 years ago
Huan's wage increases by 10%. His original wage is £10.40 per hour. What is his new hourly<br> wage?
Schach [20]

Answer:

(pound sign) 11.44

Step-by-step explanation:

4 0
3 years ago
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