3 years ago

Please help question 1. 1/2 + 2/5 question 2. 5/12 + 7/9

Mathematics

1 answer:

Andrews [41]3 years ago

6 0

Answer:

1. is 0.9 or 9/10. 2. is 43/36 or 1.19

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Answer:

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Step-by-step explanation:

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3 years ago

Complete the equation, and tell which property you used.<br><br> 8 x (14+7) = _________+ (8 x 7)

melamori03 [73]

By distributive property, 8 x (14 + 7) = (8 x 14) + (8 x 7)

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4 years ago

Find the tenth term of the geometric sequence, given the first term and common ratio.

Natalija [7]

Answer:

$a_{10}=\dfrac{1}{128}$

Step-by-step explanation:

In the geometric series:

$a_1=4\\ \\r=\dfrac{1}{2}$

The nth term of the geometric sequence can be calculated using formula

$a_n=a_1\cdot r^{n-1}$

In your case, n = 10, then

$a_{10}\\ \\=4\cdot \left(\dfrac{1}{2}\right)^{10-1}\\ \\=4\cdot \left(\dfrac{1}{2}\right)^9\\ \\=2^2\cdot \dfrac{1}{2^9}\\ \\=\dfrac{1}{2^{9-2}}\\ \\=\dfrac{1}{2^7}\\ \\=\dfrac{1}{128}$

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3 years ago

Round the following to the nearest cent: $16.997

Paul [167]

$\$16.99\underbrace{7}_{>5}\approx\$17.00$

7 0

3 years ago

Help can somone help please.

disa [49]

Answer:

0.7

Step-by-step explanation:

5(9n-6)

5×9n-5×6

45n-30

45n/45 -30/45

or 45n÷45-30÷45

n= 0.6666

0.7

hope dis helps!!!!!

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2 years ago