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Travka [436]
3 years ago
15

Need help please!! I’m confused

Mathematics
1 answer:
trapecia [35]3 years ago
4 0

Answer:

y = -0.2x + 3.8

Step-by-step explanation:

it states it has been 7 weeks. 0.2 x 7 is 1.4. That means they started with 2.4 + 1.4 meters thick of ice sheet, which is 3.8, which is the number they started with. So, b = 3.8 and it says it melts 0.2 so it's a negative, which is -0.2 as slope. So, y = -0.2x + 3.8

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Mathematics question
Nimfa-mama [501]

Step-by-step explanation:

area of rectangle (a1)=b×h

  • 20×30
  • 600in²

area of triangle=1/2 ×b×h

  • 1/2×40×30
  • 600in²

total area of arrow=a1+a2

  • 600+600
  • 1200in²

<h3>stay safe healthy and happy.</h3>
8 0
3 years ago
What is the constant of variation, k, of the line y=kx through (3,18) and (5,30)
Sav [38]
K= change in y/ change in x
K= (30-18)/(5-3)
K=12/2
K=6
4 0
3 years ago
(a) (4,4) is a point on a locus whose equation is y2 = kx. Show that (16,8) is another point on the locus.
Vlad [161]

Step-by-step explanation:

plug the coordinate points into the equations and solve for the remaining variable.

b) (2,3) - 5(2) + b(3) = 16

10 + 3b = 16. 3b= 6. b = 2

(0,8) - 5(0) + 2(8) = 16. 0+ 16 = 16. ☆

a) (4,4) assume based on results you meant y squared. (y^2)

(4)^2 = 4k. 16 = 4k. k = 4

(8)^2 = 4(16). 64 = 64. ☆

6 0
3 years ago
Read 2 more answers
What is .40 = .25 X​
leva [86]

Answer:

x=1.6

Step-by-step explanation:

.40=.25x

you move .25 to the other side which would look like this .40/.25=x and then you solve for x, which you would get 1.6.

5 0
3 years ago
A brownie recipe asks for three and one half times as much sugar as chocolate chips. If four and two thirds cups of sugar is use
Svetradugi [14.3K]

Answer:

1 1/3 chocolate chips

Step-by-step explanation:

you have to divide 4 2/3 ÷ 3 1/2

change mixed number to improper fraction

14/3÷7/2

KFC-Keep Flip Change

14/3 × 2/7 = 28/21

28÷21= 1 1/3

4 0
3 years ago
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