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2 years ago

Help plzzzzzzzzzzzz

Mathematics

2 answers:

julsineya [31]2 years ago

5 0

Answer:

with what theres nothing

Step-by-step explanation:

Allushta [10]2 years ago

5 0

Answer:

86.64cm^2 (cm squared)

Step-by-step explanation:

So! This is a cube, a 6-sided shape. All the side lengths will be equal, which makes it really easy to calculate the surface area.

Since you calculate surface area by length x width, you do that once and then multiply it by six to find the total surface area.

So it'd be 3.8cm x 3.8cm = 14.44cm

and then 14.44 cm x 6 = 86.64cm^2, or cm squared.

You might be interested in

If -3(x + 6) = x - 2, then x = -4.

Anon25 [30]

3(x + 6) = x - 2

3(-4+6)= -4-2

mutiply the bracket by 3

(3)(-4)= -12

(3)(6)= 18

-12+18= -4-2

6= -4-2

6= -6

Answer:

No solution

4 0

2 years ago

A ball is thrown into the air with an upward velocity of 36 ft/s. Its height h in feet after t seconds is given by the function

FinnZ [79.3K]

Answer:

The ball reaches a height of 29.25 ft after 1.125 seconds

Step-by-step explanation:

The maximum height of a parabola can always be found by looking for the vertex. You can find the x value (or in this case the t value) of a vertex by using -b/2a in which a is the coefficient of x^2 and b is the coefficient of x.

-b/2a

-(36)/2(-16)

-36/-32

1.125 seconds

Now to find the height, we input that value in for t

h = -16t^2 + 36t + 9

h = -16(1.125)^2 + 26(1.125) + 9

29.25 feet

6 0

3 years ago

Read 2 more answers

If the area of a circle is 58 square feet, find the circumference. A. 42.5 ft. B. 4.25 ft. C. 22.35 ft. D. 26.99 ft.

PSYCHO15rus [73]

Answer: OPTION D.

Step-by-step explanation:

The formula for calculate the circumference of a circle is:

$C=2r\pi$

Where r is the radius.

The formula for calculate the area of a circle is:

$A=r^2\pi$

Where r is the radius.

Solve for r from $A=r^2\pi$ to calculate it:

$r=\sqrt{\frac{A}{\pi}}\\r=\sqrt{\frac{58ft^2}{\pi}}\\r=4.296ft$

Subsitute the radius into $C=2r\pi$ . Then:

$C=(2)(4.296ft)\pi=26.99ft$

3 0

3 years ago

Read 2 more answers

Pls help me i will mark brainliest if you are right !

tekilochka [14]

Answer:

second option

Step-by-step explanation:

diameter= 22 cm

radius = diameter/2

=22/2

11 cm

volume of a sphere = $\frac{4}{3}*pie* r^3$

= $\frac{4}{3} * 3.14 *11^3$

=4.186666 * 1331

=5572 . 5 cubic centimeters (cm^3)

5 0

2 years ago

Round 81065 to the nearest ten thousand, hundred, ten, and thousand

brilliants [131]

Ten thousand-80000
hundred-81100
ten-81070
thousands-81000

6 0

2 years ago

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Help plzzzzzzzzzzzz