All categories

3 years ago

Can somebody help me. Will Mark brainliest.

Mathematics

1 answer:

klasskru [66]3 years ago

8 0

Answer:

choice 2

Step-by-step explanation:

You might be interested in

Which 2 square numbers make a difference of 51

insens350 [35]

100 and 49 make a difference of 51.

100 - 49 = 51

10 x 10 = 100
7 x 7 = 49

5 0

3 years ago

12 in

dybincka [34]

5 thousand with alot of zeros

4 0

3 years ago

What is 24 + p = 54?<br> what is w − 16 = 28?<br> what is 18 = t + 2?

noname [10]

Answer:

P=30

W=12

T=16

Step-by-step explanation:

6 0

3 years ago

Please help me, thanks :)

vitfil [10]

There are 8 divisions on this number line between 0.08 and 0.40, so the width of each div. is 0.32/8, or 0.04.

Starting with 0.08, fill in the boxes as follows: 0.12, 0.16, 0.20, .... 0.28, 0.32, 0.63, ... , and 0.44.

4 0

3 years ago

a rectangle is 8cm longer then it is wide, and it’s area is 153cm^2. Find the dimensions of the rectangle.

Stolb23 [73]

Answer:

Width of 9cm and length of 17cm.

Step-by-step explanation:

To calculate an area of a rectangle, use the formula A=l*w. We know the length is 8cm longer than the width. So l = 8 + w. So the area is A= (8+w)*w.

We also know the area is 153. Substitute this value for A and solve.

$153 = (8+w)(w)\\153 = 8w+w^2\\w^2+8w-153 = 0$

To solve the quadratic, use the quadratic formula:

$\frac{-b+/-\sqrt{b^2-4ac} }{2a}$

Here a=1, b=8 and c=-153.

$w=\frac{-b+/-\sqrt{b^2-4ac} }{2a} \\w=\frac{-8+/-\sqrt{8^2-4(1)(-153)} }{2(1)} \\w=\frac{-8+/-\sqrt{64+612} }{2} \\w=\frac{-8+/-\sqrt{676} }{2} \\w=\frac{-8+/-26 }{2} \\w=\frac{-8+26 }{2}=\frac{18}{2}=9 \\and\\w=\frac{-8-26 }{2} =\frac{-34}{2}=-17$

Since w=9 or w=-17, substitute this value for w in l= 8+w to find l.

l = 8+9 = 17

l=8+-17 = -9

Since length cannot be positive, it must be l=17 and w=9.

8 0

3 years ago