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3 years ago

John is gliding along on his scooter at a speed of 2.8 m/s when

Mathematics

1 answer:

user100 [1]3 years ago

3 0

Answer:

18.67 m/s²

Step-by-step explanation:

a = ∆v/ t

a= v - u/t

a = 2.8 - 0 / 0.15

a = 2.8 / 0.15

a = 18.67 m/s²

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I don’t remember learning this, need some help!

puteri [66]

Answer:

Step-by-step explanation:

(y+2)²=[(-4)+2]²

=(-4+2)²

=-2²

5 0

3 years ago

Which block has a volume of 90 cm3?

jeyben [28]

Answer:

The volume of c. figure is equal to 90 cm³

Step-by-step explanation:

These are the cuboids

The volume of a cuboid = l×b×h

A. 2×6×5

=> 60 cm³

B. 8×2×4

=> 64 cm³

C. 5×6×3

=> 90 cm³

D. 3×7×2

=> 42 cm ³

so, the volume of c. cuboid is equal to 90 cm ³

4 0

3 years ago

A circle of a certain radius has an area which is numerically 5 times the value of the circumference. What is the radius of the

patriot [66]

We have been given that a circle of a certain radius has an area which is numerically 5 times the value of the circumference. We are asked to find the radius of the circle.

We know that area of circle with a radius of r units is $\pi r^2$ .

We know that circumference of a circle is $2\pi r$ .

5 times the value of circumference would be $5(2\pi r)=10\pi r$ .

Now we will equate 5 times circumference with area as:

$\pi r^2 = 10\pi r$

Let us solve for r.

$\pi r\cdot r = 10\pi r$

$\frac{\pi r\cdot r}{\pi r}=\frac{10\pi r}{\pi r}$

$r=10$

Therefore, the radius of the circle would be 10 units.

5 0

4 years ago

Help need plz thx ASAP

pychu [463]

Choose D
Because negative times negative =positive

8 0

4 years ago

Solve the system by graphing x+y=2 and x-3y=18

erik [133]

(6,-4) that’s what I assume

3 0

3 years ago