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3 years ago

Introduction to addition or subtraction of fractions with different denominator 3/4-1/8

1 answer:

7 0

The denominator must be the same, so just think of the LEAST COMMON MULTIPLE, The LCM here is 8, because you can multiply 4 by 2 to get 8.
so when you multiply, you multiply both on the top and on the bottom, so this would be:
3 x 2 / 4 x 2 = 6 / 8
Now you can add or subtract: 6/8 - 1/8 = 5/8

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Please, help with this question. For some reason I get really confused

vivado [14]

(6,21)
This is because the top (x) is going up by two each time and the bottom row (y) is adding seven

5 0

3 years ago

10/2i?<br>(dividing complex numbers)

Lostsunrise [7]

Note that; i = √-1

Divide using the rule

10/2i = -5i

Best of Luck!

5 0

3 years ago

Can you help please thank you

Nostrana [21]

Counterclockwise is a rotation towards the left, as in the triangle will move to the position before it.

The correct answer is the fourth option, triangle DEF.

Hope this helps! :)

3 0

3 years ago

Find the sum of first 20 to terms of an ap in which d is equal to 7 and 20 second term is 149

GuDViN [60]

Answer:

1370

Step-by-step explanation:

<h3>Given</h3>

AP with d= 7 and a₂₂ = 149

Sum of first 20 terms

<h3>Solution</h3>

<u>First, let's get the value of the first term:</u>

aₙ = a + (n-1)d
a₂₂ = a + 21d
149 = a + 21*7
a = 149 - 147
a= 2

<u>Next, let's find the sum of the first 20 terms</u>

Sₙ = 1/2n(2a+ (n-1)d)
S₂₀ = 1/2*20(2*2 + 19*7) = 10(4 + 133) = 10*137 = 1370

<u>Answer is</u> 1370

6 0

3 years ago

Read 2 more answers

What is the solution set for the given inequality if the replacement set for r is {5, 6, 7, 8, 9, 10}?

tangare [24]

Answer:

{6,7,8,9,10}

Step-by-step explanation:

Solve the inequality using inverse operations.

$3r\leq 4r-6\\3r-4r\leq -6\\-r\leq -6\\r\geq 6$

This solution means values equal to or larger than 6 from the set are solutions. This means 6, 7, 8, 9, and 10 are the solution set.

8 0

3 years ago