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3 years ago

Please could you show me how to work this out?

Mathematics

1 answer:

Molodets [167]3 years ago

8 0

Answer:

Line b would be undefined and line a would just have no slope

Step-by-step explanation:

line A:it would have no slope because originally the equation is y=mx+b, but there is no m so the equation would be y= 0x+b,

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9. Change the given equation to the form y = mx + b. Give the values of b and m.

rosijanka [135]

X+4y=16
subtract x
4y = -x+16
divide 4 from 4y and divide by 4 on other side too
(4y/4) = (-x/4) + (16/4)

y=-1/4x+4
M=-1/4
B=4

8 0

2 years ago

Andrea has 18 yards of fabric. How many 4-inch pieces can she cut from her original piece?

Mrac [35]

Answer:

162 pieces

Step-by-step explanation:

Andrea has 18 yards

How many 4 inch pieces can she get?

Convert

1 yard = 3 feet

18 yards = 54 feet

1 foot = 12 inches

54 feet = 648 inches

Divide

648 inches ÷ 4 inches = 162 pieces

Hope this helps :)

6 0

3 years ago

Read 2 more answers

Evaluate: -30 ÷ 2 a. 10 b. 15 c. -15 d. -10

faust18 [17]

C......................

7 0

2 years ago

Read 2 more answers

Which expression is equivalent to 3\tfrac{1}{3}-8\tfrac{2}{3}3

Sholpan [36]

Answer:

and yeah ikr I don't understand why

3 0

2 years ago

g If a snowball melts so that its surface area decreases at a rate of 4 cm2/min, find the rate (in cm/min) at which the diameter

maks197457 [2]

Answer:

Rate of change of the diameter is equal to 0.053cm/min

Step-by-step explanation:

A snowball is of the shape of a sphere

Surface area of Sphere (S)= $4*pi*R^2$

Rate of change of surface area

dS/dt = -4 $cm^2/min$

the negative sign indicates the surface area is decreasing.

Radius = d/2 where d represents diameter

using this is the surface area equation

S = $4*pi*(d/2)^2$

= $pi*d^2$

dS/dt = 2*pi*d*d(d)/dt

4 = 2*pi*d*(d)/dt

d(d)/dt = 2/12*pi= $\frac{1}{6pi}$ cm/min

so the rate of change of the diameter is equal to 0.053cm/min

5 0

2 years ago