3 years ago

Need help on this asap pleaase

Mathematics

1 answer:

makkiz [27]3 years ago

6 0

I think it’s 2, -2 but I am not completely sure. Sorry if it’s wrong if it right pls mark branliest

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write a unit rate for the situation. round to the nearest hundredth if necessary traveling 216 miles in 5 hours

katen-ka-za [31]

There are always two possible unit rates.
Either way, you just divide to find it.

(5 hours) / (216 miles) = 0.023 hours per mile .

(216 miles) / (5 hours) = 43.2 miles per hour .

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3 years ago

Which expression is equal to 42⋅48? 416 410 46 4−6

krek1111 [17]

Answer:

I think it is the last one 4-6

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Which properties did he use?

baherus [9]

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3 years ago

4^x-4^x-1=24,then find (2x)^x

DENIUS [597]

Answer: 5²⁻⁵

Step-by-step explanation:

$4^x-4^{x-1}=24\\\\\\3(4^{x-1})=24\\\\\\4^{x-1}=8\\\\\\2^{2(x-1)}=2^3\\\\\\2(x-1)=3\\\\\\x-1=\dfrac{3}{2}\\\\\\x=\dfrac{5}{2}\quad \rightarrow x=2.5$

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3 years ago

Determine whether the set can be sides of a right triangle. Use the Pythagorean theorem: 14, 28, 50

Keith_Richards [23]

Answer:

No, this isn't a right triangle.

Step-by-step explanation:

First of all, the hypotenuse is the longest side (in this case that is 50), so that's what we're working for.

The formula for the Pythagorean theorem is :

$a^{2} +b^{2} =c^{2}$

14 squared equals 196, and 28 squared equals 784. Add these and you get 980. The square root of 980 is not 50, so we know that this is not a right tryangle.

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2 years ago