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Volgvan
3 years ago
13

What is the quotient of a-3 over 7 divided by 3-a over 21

Mathematics
1 answer:
stepan [7]3 years ago
3 0

Answer:

=−3

Step-by-step explanation:

=17a+−37−121a+17

=21(a−3)7(−a+3)

=−3

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In 1999 Daniel was 146 cm tall. He grew to be 176 cm by the year 2006. What was Daniel's rate of growth over this period of his
andreyandreev [35.5K]

Answer:

he grows by 5 cm every year between 1999 and 2006

Step-by-step explanation:

This is a arithmetic progression problem with the formula;

T_n = a + (n - 1)d

We are told that In 1999 Daniel was 146 cm tall. He grew to be 176 cm by the year 2006.

Thus;

a = 146

d = 2006 - 1999 = 7

Thus;

176 = 146 + (7 - 1)d

176 - 146 = 6d

30 = 6d

d = 30/6

d = 5 cm

Thus, he grows by 5 cm every year between 1999 and 2006

3 0
3 years ago
Estimate 49.419-27.276 by first rounding each number to the nearest thousand.
Wewaii [24]

Answer:

22.143

Step-by-step explanation:

49.419-27.276=22.143

6 0
3 years ago
Hey mate answer te question please ​
andrezito [222]

Answer:

7 \frac{37}{55}

Step-by-step explanation:

In order to solve an equation like this, you'll need to find a common denominator for your Fraction.

7 \frac{2}{5} + \frac{3}{11}

7 \frac{22}{55} + \frac{15}{55}

7 \frac{37}{55}

4 0
4 years ago
What is the slope of slope =12;(7,84)
snow_tiger [21]

Answer:

e

Step-by-step explanation:

e

8 0
3 years ago
How do you convert decimals between standard and expanded form
nordsb [41]

Answer:

Heres how:

Step-by-step explanation:

Example, 7.831 , here you can see that there are 3 numbers relating to a decimal. the 1 by itself is 0.1000, 3 by itself is 0.300, and the 8 by itself is 0.80 . If you add this, you get 0.831. now add the whole number, Seven. if there is more digits in the decimal, then just add another zero.

7 0
2 years ago
Read 2 more answers
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