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Harman [31]
3 years ago
14

Simplify the expression help

Mathematics
2 answers:
kolezko [41]3 years ago
7 0

Answer:

225/(7-4)^2-15

225/(3)^2-15

225/9-15

25-15

10

Step-by-step explanation:

natita [175]3 years ago
5 0

The answer is 10.

Hope this helps!

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15y+31=61 how do I solve this
Setler79 [48]
15y + 31 = 61
15y = 61 - 31
15y = 30
y = 30 ÷ 15
<u>y = 2</u>
6 0
3 years ago
River C is 100 miles longer than River D. If the sum of their lengths is 5,500 miles, what is the length of River D?
ryzh [129]
2,200 is how long river D is
8 0
3 years ago
Read 2 more answers
Use rounding to estimate the product
sdas [7]

Answer:

The estimate of the product is about 35 answer C

Step-by-step explanation:

- We use rounding to estimate the product of two fractions

- The mixed number has whole number and fraction

- To round the mixed number we look to the fraction

- If the numerator is half or greater than half the denominator, then we

  add the whole number by 1 and cancel the fraction

- If the numerator is less than half the denominator, then we keep the

  whole number as it and cancel the fraction

- Ex: If the mixed number is 2\frac{3}{4}, 3 is more than

 half 4 then we will add 2 by 1 and cancel the fraction part, the

 mixed number 2\frac{3}{4} after rounding is 3

- Ex: If the mixed number is 5\frac{1}{4}, 1 is less than

 half 4 then we will keep 5 as it and cancel the fraction part, the

 mixed number 5\frac{1}{4} after rounding is 5

* Lets solve the problem

∵ In the part 4\frac{3}{4} 3 is more than half 4

∴ The rounding value of 4\frac{3}{4} is 5

∵ In the part 7\frac{2}{17} 2 is less than half 17

∴ The rounding value of 7\frac{2}{17} is 7

∴ 4\frac{3}{4}*7\frac{2}{17}=5*7=35

* <em>The estimate of the product is about 35</em>

6 0
3 years ago
What is y-x=2x-2/3y in slope intercept form
Gelneren [198K]
Y - x = 2x - 2/3y 
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y = 1.8x 
8 0
3 years ago
Please answer with steps​
egoroff_w [7]

9514 1404 393

Answer:

  n = 99

Step-by-step explanation:

The sum of logarithms is the log of a product. Here, the sum of terms is ...

  log(2/1) +log(3/2) +log(4/3) + ... +log((n+1)/n)

  = log((2/1)(3/2)(4/3)×...×((n+1)/n)) = log(n+1)

So, the question reduces to ...

  log(n+1) = 2

Taking antilogs, we have ...

  n +1 = 10^2 = 100

  n = 99

The value of n that makes the sum 2 is 99.

7 0
3 years ago
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