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IRISSAK [1]
3 years ago
9

writing to explain the table shows the average speed in kilometers per hour for two different racers A and B. in 12 hours ,how m

uch farther will car B go than car A SHOW YOUR WORK!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! please
Mathematics
1 answer:
I am Lyosha [343]3 years ago
8 0
Okay so because we are talking about the rate of km per hour. This means that car A is going 208km per hour. We are trying to find out how many km at 12 hours so we are going to multiply:
208x12= 2496km
Now we have to do the same for car B:
215x12= 2580km
Next we have to figure out how many km more did car B drive than car A so we have to subtract:
2580-2496= 84km
Hope this helps(;
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How to solve for a and b
murzikaleks [220]
\bf \begin{cases}
3=a\cdot b^0\\
75=a\cdot b^2
\end{cases}\qquad b^0=1\implies 
\begin{cases}
3=a\cdot 1\implies 3=a\\
----------\\
75=a\cdot b^2\implies 75=3\cdot b^2\\\\
\frac{75}{3}=b^2\implies 25=b^2\\\\
\pm \sqrt{25}=b\implies \pm 5 = b
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recall, anything raised to the 0, zero, power, is 1, with the sole exception of 0
8 0
4 years ago
What is the answer, explain
aniked [119]
The value is 100,000
7 0
3 years ago
Please help quickly −2/9−(−1/3÷3/5)
amid [387]

Answer:

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Step-by-step explanation:

3 0
3 years ago
Factor completely. (x^2 – 4)(x^2 + 6x + 9)<br>​
sertanlavr [38]
<h3>Answer:   (x-2)(x+2)(x+3)(x+3)</h3>

This is the same as (x-2)(x+2)(x+3)^2. The order of the factors doesn't matter.

===============================================

Explanation:

x^2-4 factors to (x-2)(x+2) after using the difference of squares rule

x^2+6x+9 factors to (x+3)(x+3) after using the perfect square trinomial factoring rule

So overall, the original expression factors to (x-2)(x+2)(x+3)(x+3)

We can condense this into (x-2)(x+2)(x+3)^2 since (x+3)(x+3) is the same as (x+3)^2

-------------------

Side notes:

  • Difference of squares rule is a^2 - b^2 = (a-b)(a+b)
  • The perfect square trinomial factoring rule is a^2+2ab+b^2 = (a+b)^2
8 0
3 years ago
John brought a jacket for $30. The sales tax is 7%. How much does John pay for the jacket with taxes included (Total Price)?
vaieri [72.5K]

Answer:

$32.10

Step-by-step explanation:

Okay to find any price included with tax is 100% plus the tax.

The tax is 7%. So in decimals its 1.07.

Lets multiply. 30 x 1.07 = $32.10

8 0
3 years ago
Read 2 more answers
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