3 years ago

I don't know how to solve these two types of questions: (x+y)(x-y)=20 and (z+z)(z+z)=63

Mathematics

1 answer:

Ksju [112]3 years ago

7 0

3 fdjfjddjdnsnfjdjfjdjdjdjdjdnekvidijrrjen ekfodi sifu shav csjrejfjejejjfjdffjdjdj

You might be interested in

Find the area of the circle round your answer to the nearest hundred

kompoz [17]

Answer:

what are the numbers shown?

3 0

3 years ago

Read 2 more answers

Solve the following proportion 9/x = 3/12 A. 36 B. 6 C. 24

GaryK [48]

Answer:

Step-by-step explanation:

$\frac{9}{x}=\frac{3}{12}\\\\$

Cross multiply,

9*12 = x*3

$\frac{9*12}{3}=x$

x = 3*12

x = 36

3 0

3 years ago

Plz help me!!(ᗒᗣᗕ)՞ Plz!

uysha [10]

Answer:

A) 64 cm²

Step-by-step explanation:

Trapezoid area formula:

$A=\frac{a+b}{2} h$

Given:

a = 6

b = 10

h = 8

Work:

$A=\frac{a+b}{2} h\\\\A=\frac{6+10}{2} *8\\\\A=\frac{16}{2} *8\\\\A=8*8\\A=64$

5 0

3 years ago

Use the graph to determine the correct relationship between the mean and median. A) mean < median B) median < mean C) medi

ioda

Answer:

B) median < mean

Step-by-step explanation:

To find the median, take away one of the frequencies until you have only one left. The median is 6.

To find the mean add up all of the numbers and divide by how many numbers are used. 3 + 4(3) + 6(8) + 8(3) + 10(2) + 11 = 118/17 = 6.94

This means that the mean is greater than the median.

If this answer is correct, please make me Brainliest!

8 0

3 years ago

Read 2 more answers

A = 4 and b = 2 whoever answers first gets brainliest and 50 points

ankoles [38]

Answer:

Step-by-step explanation:

6 0

3 years ago