2 years ago

Drag a figure into each blank space so that the two figures in the row match the description.

Mathematics

1 answer:

LUCKY_DIMON [66]2 years ago

7 0

What’s the description?

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X - Зу = -2<br> X - Зу = 16

Stells [14]

Answer: x - 3y = -2
x = -2 + 3y

x - 3y = 16
x = 16 + 3y

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2 years ago

Trisha was making muffins from scratch. She scooped out 2 cups of all-purpose flour and estimated that it weighed 250 grams. Whe

Mice21 [21]

Answer:

first, she should have measured one cup of flower then estimated how much another one would weigh, and added the results together.

Step-by-step explanation:

hope it helps have a good day

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2 years ago

A rectangle has a perimeter of 54 cm. It has a length of 15 cm. What is its area? *

d1i1m1o1n [39]

the area is 180 cm. to find the perimeter you would do 15+15+14+14 to get 54 cm. So for area you do (l×w) which is 15×14=180.

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2 years ago

Neptune is 4.5 billion kilometers from the<br> sun. Represent this number in scientific<br> notation

Tanya [424]

Answer:

4.5 x 10 ^9

Step-by-step explanation:

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3 years ago

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When the area in square units of an expanding circle is increasing twice as fast as its radius in linear units

alexira [117]

Answer:

r=1/π

Step-by-step explanation:

Area of the circle is defined as:

Area = πr²

Derivating both sides

$\frac{dA}{dr}$ =2πr

$\frac{dA}{dt}$ = $\frac{dA}{dr}$ x $\frac{dr}{dt}$ = 2πr $\frac{dr}{dt}$

If area of an expanding circle is increasing twice as fast as its radius in linear units. then we have : $\frac{dA}{dt}$ =2 $\frac{dr}{dt}$

Therefore,

2πr $\frac{dr}{dt}$ = 2 $\frac{dr}{dt}$

r=1/π

5 0

3 years ago

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