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kramer
3 years ago
15

Which inequality is true for 50pts​

Mathematics
2 answers:
shepuryov [24]3 years ago
8 0

Answer:

B. (5+2)^{2} > 5^2 + 2^2

Step-by-step explanation:

The inequality "B" is correct because when you simplify it, you can see that it holds true:

7^{2} > 25 + 4

49 > 29

49 is indeed greater than 29, making this inequality true.

enot [183]3 years ago
8 0

Answer:

B. (5+2)^{2} > 5^2 + 2^2

The inequality "B" is correct because when you simplify it, you can see that it holds true:

Step-by-step explanation:

7^{2} > 25 + 4

49 > 29

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8 Darpan runs a distance of 12 km and then cycles a distance of 26 km. His running speed is x km/h and his cycling speed is 10 k
Sonja [21]

The equation in terms of x, for the total time he takes in hours would be 2.48 = 12/x  + 26/10x

<h3>What is speed?</h3>

Speed can be calculated as the ratio of distance traveled to the time taken

Darpan runs a distance of 12 km and then cycles a distance of 26 km.

Total distance = 12 + 26 = 38km

The running speed is x km/h

A = x

The cycling speed is 10 km/h faster than his running speed

B = 10x

He takes a total time of 2 hours and 48 minutes.

So, the total time he takes

Time = Distance x speed

2.48 = 12/x  + 26/10x

10x(2.48) = 120 + 26

24.8x = 146

x = 5.8

Learn more about speed here;

brainly.com/question/7359669

#SPJ1

8 0
2 years ago
Pls I need help I'm soooooooooooo confused on my question also please no links because I can't get to them!
saul85 [17]

Answer:

divide the least common denominator by the original denominator

6 0
3 years ago
Read 2 more answers
Simplify <img src="https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7BX-10%7D" id="TexFormula1" title="\frac{1}{X-10}" alt="\frac{1}{X-10}
mr Goodwill [35]

In the second fraction, factorize the denominator:

x^2-9x-10=(x-10)(x+1)

Then we have, as long as x\neq10,

\dfrac1{x-10}\div\dfrac{9x}{x^2-9x-10}=\dfrac{\frac1{x-10}}{\frac{9x}{(x-10)(x+1)}}=\dfrac1{\frac{9x}{x+1}}=\dfrac{x+1}{9x}

which you could also write as

\dfrac{x+1}{9x}=\dfrac x{9x}+\dfrac1{9x}=\dfrac19+\dfrac1{9x}

4 0
3 years ago
Please help and explain very easy good luck
Mars2501 [29]

Answer:

-76

Step-by-step explanation:

A positive digit multiplied by a negative digit will result as a negative digit.

So,

6 · -8 = -48

Now if there is a problem where a number is added by a negative digit number, you turn the "plus" sign into a "negative" sign.

So,

- 48 + (- 28)

-48 - 28

If you subtract a negative by a negative, the answer will be negative BUT you have to ADD those two negative digits together and put the negative sign after.

- 48 - 28 = -76

7 0
3 years ago
Read 2 more answers
−1/2(7z+4)+1/5(5z−15)
Tanya [424]

Answer:

Step-by-step explanation:

-7z/2 - 2 + z -3

=-5 - 5z/2

5 0
3 years ago
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