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2 years ago

Coach Kelly brought 28 L of water to the

Mathematics

1 answer:

Leviafan [203]2 years ago

4 0

Answer:

Step-by-step explanation:

it one times one pllus the 100 blus thewendy

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How to solve 89x92 using the proper steps to get to the answer

LekaFEV [45]

Answer: ${8188}$

Step-by-step explanation:

1. USING MULTIPLICATION

FIRST 2\times 9=18

SECOND 2\TIMES 8=16

THIRD 9\TIMES 9=81

FOURTH 9\TIMES 8=72

6 0

3 years ago

If 8 counters is the whole, how many counters make 1/4

Gala2k [10]

Answer: 2

each counter is 1/8, so two is 2/8 which is equivalent to 1/4

4 0

3 years ago

Read 2 more answers

I need help with this question

Murrr4er [49]

The number of cows is given by

$14\cdot 2^{\frac{y}{5}}$

So, after $k$ years, the number of cows will be

$14\cdot 2^{\frac{y+k}{5}}$

We want this number to be twice as much as the original:

$14\cdot 2^{\frac{y+k}{5}} = 2(14\cdot 2^{\frac{y}{5}})$

First of all, we can cancel 14 from both sides:

$2^{\frac{y+k}{5}} = 2\cdot 2^{\frac{y}{5}}$

Finally, on the right hand side, we can use the exponent rule

$a^b\cdot a^c=a^{b+c}$

to get

$2^{\frac{y+k}{5}} = 2^{\frac{y}{5}+1}$

To solve this equation, we must impose that the two exponents are the same:

$\dfrac{y+k}{5} = \dfrac{y}{5}+1 \iff \dfrac{y+k}{5} = \dfrac{y+5}{5}$

And clearly this is true if and only if $k=5$ . So, it will take 5 years for the cow heard to double in number.

You can do the exact same steps to find the doubling time for the sheeps.

8 0

3 years ago

12. How much more energy is released by an earthquake with a magnitude of 8.0

Nadusha1986 [10]

Answer:

Lets conside the order of magnitude
We have a different of 8.0- 6.0=2.0
An 8 magnitude has 63.09 ×10^15 joules
A 6 magnitude has 63.09×10^12 J
Which is 1000 times more energy
Your answer choices are incorrect
I do quizzes and exams if your interested

7 0

3 years ago

<img src="https://tex.z-dn.net/?f=4%20%5Csqrt%7B40%7D%20%20%2B%207%20%5Csqrt%7B160%7D%20" id="TexFormula1" title="4 \sqrt{40} +

dmitriy555 [2]

Answer:

36 $\sqrt{10}$

Step-by-step explanation:

Using the rule of radicals

$\sqrt{a}$ × $\sqrt{b}$ ⇔ $\sqrt{ab}$

Simplifying the radicals in the expression

$\sqrt{40}$

= $\sqrt{4(10)}$

= $\sqrt{4}$ × $\sqrt{10}$ = 2 $\sqrt{10}$

$\sqrt{160}$

= $\sqrt{16(10)}$

= $\sqrt{16}$ × $\sqrt{10}$ = 4 $\sqrt{10}$

Thus

4 $\sqrt{40}$ + 7 $\sqrt{160}$

= 4 × 2 $\sqrt{10}$ + 7 × 4 $\sqrt{10}$

= 8 $\sqrt{10}$ + 28 $\sqrt{10}$

= 36 $\sqrt{10}$

5 0

3 years ago

Read 2 more answers