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2 years ago

Some people want peace and quiet, i want world peace and quiet...

Mathematics

1 answer:

zlopas [31]2 years ago

5 0

Answer:

same here too much ppl dieing

Step-by-step explanation:

You might be interested in

Which two numbers have a product of 18 and a sum of -11?

ValentinkaMS [17]

Answer:

X=-8

Y=10

Step-by-step explanation:

5 0

2 years ago

How to do factor each expression 63 + 81

Katyanochek1 [597]

Answer:

$9(7 + 9)$

Step-by-step explanation:

To factor an expression you have to first find the highest common factor (HCF) of the numbers in the expression. You divide them by their HCF, bracket it and place the HCF outside the bracket.

$63 + 81 = \\ 9(\frac{63}{9} + \frac{81}{9}) = \\ 9(7 + 9)$

To check if it is factored properly you can do the opposite of what you just did by clearing the bracket.

9 (7 + 9)

(9 x 7) + (9 x 9)

= 63 + 81

6 0

1 year ago

Find the difference of (2x+5)(2x-5)

san4es73 [151]

Answer:

4x2−25

Step-by-step explanation:

(2x+5)(2x−5)

=(2x+5)(2x+−5)

=(2x)(2x)+(2x)(−5)+(5)(2x)+(5)(−5)

=4x2−10x+10x−25

4x2−25

3 0

3 years ago

Consider the net of a triangular prism where each unit on the coordinate plane represents five feet. If a can of spray paint cov

Lera25 [3.4K]

Answer:

B) 7 cans

Step-by-step explanation:

First task is to determine how many square units we have.

With the rectangle spanning 2 units on the X-axis and 3 unites on the Y-axis, we know that it has an area of 6 square units.

The two triangle shapes sum up to one unit total, since a triangle's area is (base * height) / 2. Both have a base of 1 unit, and a height of 1 unit... so (1 * 1) / 2 = 1/2 for each triangle. Together, they occupy 1 unit.

So, total is 7 square units. Let's imagine it as a 7-unit by 1-unit rectangle, it will be easier to calculate. Each unit is 5 feet. So, this rectangle measures 35 (7 * 5) feet long, by 5 (1 * 5) feet wide... for a total of 175 (35 * 5) sq feet.

Since a can of paint can cover 25 sq feet, he'll need 7 cans (175 / 25).

7 0

3 years ago

Richard goes on a 6-mile jog one morning. He jogs the first two miles at an average speed of 6 mph. He progressively slows down;

uysha [10]

Answer:

Average speed = 4 mph

Step-by-step explanation:

Given as

Total distance to travel = 6 mile

now, for first 2 mile the avg speed = 6 mph

for next 2 mile the avg speed = 4 mph

and for rest 2 mile the avg speed = 3 mph

so, the average speed of the Richard = $\frac{3}{\frac{1}{6}+\frac{1}{4}+ \frac{1}{3} }$

Total Avg speed = $\frac{3}{\frac{9}{12} }$

Or, = $\frac{3}{9}$ ×12

= 4

So the total Average speed = 4 mph (Answer)

7 0

2 years ago