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Alex17521 [72]
3 years ago
10

Can someone please help me extra points

Mathematics
1 answer:
Maslowich3 years ago
3 0

Answer:

4) m: 1.25   b: 6         Equation: y= 1.25x + 6

5) m: 20      b: 10     Equation: y= 40x + 10

6) m: -2       b: 0       Equation: y= -2x + 0

7) m: 1/5      b: 1       Equation: y= 1/5x + 1

8) -8.7 = 1.3x + 0

I really hope this helps!

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A cylinder has a radius of 6 centimeters and a height of 18 centimeters. A smaller cylinder has linear dimensions that are one-t
vlabodo [156]

Answer:

the larger cyclinder has a surface area which is 9 times the surface area of the smaller cyclinder.

Step-by-step explanation:

Surface area of larger cyclinder

Radius = 6cm

Height = 18cm

A = 2πrh + 2πr^2

= 2*3.14*6*18 + 2*3.14*6^2

= 678.24 + 226.08

= 904.32 cm

Smaller cyclinder (1/3 of the larger cyclinder)

Radius = 2cm

Height = 6cm

A = 2πrh + 2πr^2

= 2*3.14*2*6 + 2*3.14*2^2

= 75.36 + 25.12

= 100.48 cm

Comparing the surface area of the larger cyclinder and the smaller cyclinder

= 904.32 cm / 100.48 cm

= 9

This means, the larger cyclinder has a surface area which is 9 times the surface area of the smaller cyclinder.

5 0
3 years ago
Each side of a square barn is 9 meters long. What is the barn's area?
mina [271]

Step-by-step explanation:

a) barn area = 9 × 9 = 81 m^2

b) perimeter = 9 × 4 = 36m or

= 9+9+9+9 = 36m

7 0
4 years ago
Y=3x² + 7x - 10<br>y- 19x= 22​
balu736 [363]

Answer:

Step-by-step explanation:

Step1: Solvex+y=7for x:

x+y=7

x+y+−y=7+−y(Add -y to both sides)

x=−y+7

Step2: Substitute−y+7forxinx+2y=11:

x+2y=11

−y+7+2y=11

y+7=11(Simplify both sides of the equation)

y+7+−7=11+−7(Add -7 to both sides)

y=4

Step3: Substitute4foryinx=−y+7:

x=−y+7

x=−4+7

x=3(Simplify both sides of the equation)

x=3 and y=4

7 0
4 years ago
How many pounds of raisins worth $3 per pound must be mixed with 19 pounds of peanuts worth $2.40 per pound to produce a mixture
erastova [34]

Answer:

I hav this stupid glitch on my laptop that forces me to answer this or i hav to shut down my laptop. I'm sorry

Step-by-step explanation:

5 0
3 years ago
En un parc que ocupa una superfície rectangular s'han construït un camí que el travessa en diagonal. Si les dimensions del parc
Fofino [41]
Could you translate it to English in the comments so I could better understand what your asking :)
3 0
3 years ago
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