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3 years ago

Subtract a+b from a-b

Mathematics

1 answer:

Anestetic [448]3 years ago

8 0

Answer:

Step-by-step explanation:

EX: a=4

b=2

4-2-4+2=0

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Look at the geometry question and solve for X.

zubka84 [21]

Answer:

The value of x = 24.4 units.

Step-by-step explanation:

Given

a = 14

b = 20

c = x

For a right-angled triangle with sides a and b, the hypotenuse c is defined as

$c=\sqrt{a^2+b^2}$

substituting c = x, a = 14 and b = 20

$c=\sqrt{14^2+20^2}$

$c=2\sqrt{149}$

$c = 24.4$ units

Therefore, the value of x = 24.4 units.

6 0

3 years ago

Use long division to find a repeated decimal equivalency for the fraction. Upload all of your work as part of your final answer.

Rama09 [41]

Answer:

0.88

Step-by-step explanation:

You first multiply the fraction by 11 which is 88/99. Then, from common knowledge, you'll know that anything over 99 is repeating itself so it is 0.88 repeating.

8 0

4 years ago

Read 2 more answers

Alex is paid $30/hr at full rate, and $20/hr at a reduced rate. The hours of work are paid at a ratio of 2:1, full rate : reduce

Roman55 [17]

Answer:

$106.67

Step-by-step explanation:

Using the example, for 3 hours work, Alex would be paid ...

(2 hr)($30/hr) +(1 hr)($20/hr) = $60 +$20 = $80

At the same rate of pay, for 4 hours work, the pay would be ...

pay/(4 hr) = $80/(3 hr)

pay = $80(4/3) ≈ $106.67

Alex's pay for 4 hours of work is $106.67.

4 0

4 years ago

If r = 18 and t = 6, what is the value of the following expression?<br> r + 42 ÷ t · 5

AleksAgata [21]

Answer:

Step-by-step explanation:

42/6=7

7*5=35

18+35=53

4 0

3 years ago

What is the approximate area of the regular pentagon?

Anastasy [175]

Area of the pentagon: 342 cm2

Step-by-step explanation:

The figure of the pentagon is missing: find it in attachment.

The area of the pentagon can be seen as the area of 5 equal triangles, each of them having a base equal to the length of the side of the pentagon,

L = 14.1 cm

and the height of each triangle can be found by using Pythagorean's theorem:

$h=\sqrt{12^2-(\frac{L}{2})^2}=\sqrt{12^2-(\frac{14.1}{2})^2}=9.7 cm$

The area of each of the 5 triangles is

$A'=\frac{1}{2}Lh$

Therefore, the area of the pentagon is 5 times this area:

$A=5A'=\frac{5}{2}Lh=\frac{5}{2}(14.1)(9.7)=342 cm^2$

Learn more about area of regular figures:

brainly.com/question/4599754

brainly.com/question/3456442

brainly.com/question/6564657

#LearnwithBrainly

7 0

3 years ago

Read 2 more answers