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3 years ago

Help me pleaseee thankss

Mathematics

1 answer:

GuDViN [60]3 years ago

5 0

A.) 2k-7
B.)7t+10 I’m not 100% sure but I suck at math and I have to answer questions so sorry if it’s wrong but good luck and try ur best <3

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Hermina cut a 10 by 15 piece of cardboard down the diagonal

katen-ka-za [31]

Answer:

$\sqrt{325}$

Step-by-step explanation:

This is because you use Pythagorean theorem. a^2 + b^2 = c^2.

8 0

3 years ago

The height of a cylinder is 10 and the area of a base is 36 pi square units. What

ollegr [7]

Answer:

1130.97336 units^3

Step-by-step explanation:

The volume of a cylinder can be found using:

$v=\pi r^2h$

We have the area of the base, but not the radius

$a=\pi r^2$

We know the area is $36\pi$ , so we can substitute that in for a

$36\pi =\pi r^2$

We want to find r, so we need to isolate it

Divide both sides by pi

36=r^2

Take the square root of both sides

6=r

Now we know the radius, and can substitute it into the volume formula, and we can substitute the height (10) in

$v=\pi r^2h$

$v=\pi 6^210$

Solve the exponent

$v=\pi 36(10)$

$v=\pi 360$

v=1130.97336

The volume is 1130.97336 units^3

6 0

4 years ago

Katie can walk at a rate of 4 miles per hour. Her total distance in t hours is d.

postnew [5]

Answer:

4t miles per hour

Step-by-step explanation:

Distance refers to the amount of space an object can cover within a period of time. It can be calculated by multiplying speed and time.

Distance= speed × time

Speed is the rate of movement of an object from one place to another.

Speed= Distance/Time.

Time= distance/speed.

If Katie walks at the rate of 4miles per hour.

Her total distance in the hours is d

Total distance= speed× time

Her speed=4miles per hour

Time= t

Katie's total distance=4 miles per hour× t

=4t miles per hour

7 0

3 years ago

Please answer quickly :’)

Virty [35]

check below for labels,

Full line is referred as diameter.

Half of diameter or from centre touching the circle is called radius.

5 0

3 years ago

Calculate the area of the rectangle whose length:breath=3:2, perimeter =40cm

Mazyrski [523]

Answer:

let 3:2 be 3x& 2x

perimeter =40

2(l+b)=40

2(3x+2x)=40

5x=40/2

x=20/5=4cm

length=3x=3×x=3×4=12cm

breadth =2x=2×4=8cm

area of rectangle =l×b=12×8=96cm²

8 0

3 years ago