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Murljashka [212]
3 years ago
10

In a race, Car #1 went an average of

Mathematics
1 answer:
Nostrana [21]3 years ago
8 0
I think the mile is 10 miles per hour
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An account with an initial balance of $4000 earns 6.5% interest for 5 years.
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Answer:

Try 32.5 hope this helps

Step-by-step explanation:

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IDENTIFY and EXPLAIN 5 strategies you can use to determine whether your answer is right or wrong for 20-2.34
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A landscaper is designing a flower garden in the shape of a trapezoid. She wants the shorter base to be 3 yards greater than the
wariber [46]

The formula for the area of a trapezium is as follows:

<span>area=<span>12</span>(a+b)h

</span> Let a be the shorter base. Then a = h + 3.
Let b be the longer base. Then b = h + 7.

Substituting these values for a and b in the general formula gives: <span>
area = 225 = <span>12</span>(h+3+h+7)h = <span>h^2</span>+5h</span>

So you need to solve the following quadratic:

<span><span>h^2</span>+5h−225=0</span>


Step 1: Use quadratic formula with a=1, b=5, c=-225.

<span>h=<span><span><span>−b</span>±<span>√<span><span>b2</span>−<span><span>4a</span>c</span></span></span></span><span>2a</span></span></span><span>h=<span><span><span>−<span>(5)</span></span>±<span>√<span><span><span>(5)</span>2</span>−<span><span>4<span>(1)</span></span><span>(<span>−225</span>)</span></span></span></span></span><span>2<span>(1)</span></span></span></span><span>h=<span><span><span>−5</span>±<span>√925</span></span>2</span></span><span><span>h=<span><span><span>−5/</span>2</span>+<span><span><span><span>5/2</span><span>√37</span></span><span> or </span></span>h</span></span></span>=<span><span><span>−5/</span>2</span>+<span><span><span>−5/</span>2</span><span>√37

</span></span></span></span>Answer:<span><span>h=<span><span><span>−5/</span>2</span>+<span><span><span><span>52</span><span>√37</span></span><span> or </span></span>h</span></span></span>=<span><span><span>−5/</span>2</span>+<span><span><span>−5/</span>2</span><span>√<span>37</span></span></span></span></span>
4 0
3 years ago
What is the product of 4 2/7 and 11 1/4 ?
kolbaska11 [484]

Answer:

(4 2/7) x (11 1/4) = 48 3/14

Step-by-step explanation:

5 0
1 year ago
A roll of tape has a circumference of 19 centimeters. The circumference decreases 4 centimeters after you use some of the tape.
olga_2 [115]

Answer:

4.77 cm correct to the nearest hundredth.

Step-by-step explanation:

The new circumference = 19 - 4 = 15 cm.

Circumference C = π * diameter

So the diameter =  C/π = 15/π = 4.7746 cm

8 0
1 year ago
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