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nataly862011 [7]
3 years ago
14

Can someone please help me I really need help

Mathematics
2 answers:
attashe74 [19]3 years ago
6 0
THE CORRECT  ANSWER IS X10

HOPE THIS HELPS

antoniya [11.8K]3 years ago
4 0
It should be X < 25/52
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Draw a number line model to determine -9 + (-2)
belka [17]
The answer would be -11
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HELP ME PLEASE.
Mrac [35]

Answer:$51.2

Step-by-step explanation:

We have been given that at the restaurant, the cost of the meal before tax was $40. The tax is 8.5%.

The cost after tax would be .

Sheri wants to leave at least an 18% tip. The cost of meal after tip would be .

Therefore, the total cost of the dinner would be $51.2.

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3 years ago
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The equation d=0.05v2+1.1v models the distance, d, that it takes are car traveling v miles per hour to come to a complete stop.
liq [111]

Answer:

  • <u>Hannah was not speeding because her speed was about 61 mph, which is below the speed limit.</u>

Explanation:

Just to correct some typos, this is the complete question:

<em />

<em>The equation d=0.05v² +  1.1v models the distance, d, that it takes a car traveling at a speed of v miles per hour to come to a complete stop. If Hannah’s car stopped after travelling 250 feet on a highway with a speed limit of 65 mph, was Hannah speeding? Explain using math whether she was speeding and how you know.</em>

<em />

<h2>Solution</h2>

<em />

To find whether Hannah was speeding, you must find the velocity that is solution for the equation:

  • 250=0.05v² +  1.1v

<em />

Write it in standard form:

  • 0.05v² +  1.1v - 250 = 0

Use the quadratic formula:

       v=\dfrac{-1.1\pm\sqrt{(1.1)^2-4(0.05)(-250)}}{2(0.05)}

      v=\dfrac{-1.1\pm 7.1561}{0.1}

       v=60.6\text{ or }v=-82.6

The speed can only be positive; thus, it is about 61 miles per hour, which is below the speed limit of 65mph.

In conclusion, she was not speeding.

5 0
3 years ago
The table shows the prices of pairs of socks from different clothing stores.
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The store that has the lowest price would be Young army
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3 years ago
Consider the equation -5\cdot e^{10t}=-30−5⋅e
yulyashka [42]

The approximate equation is n = (ln 6)/10 and approximate value is n = 0.179.

<h3>What is Exponential equation?</h3>

In mathematics, an exponential function is a function of form f (x) = aˣ, where “x” is a variable and “a” is a constant which is called the base of the function and it should be greater than 0.

Here, given equation; (we are using n in place of t)

          -5.e¹⁰ⁿ = -30

      On dividing -5 both sides, we get

           -5.e¹⁰ⁿ/-5 = -30/-5

                e¹⁰ⁿ  = 6

 Taking 'ln' on both side, we get

             10n = ln 6

              n = (ln 6)/10

              n = 1.791759/10

              n = 0.179

Thus, the approximate equation is n = (ln 6)/10 and approximate value is n = 0.179.

Learn more about exponential function from:

brainly.com/question/14355665

#SPJ1

4 0
3 years ago
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