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mestny [16]
3 years ago
7

Estimate by rounding or using compatible numbers show how estimated 4×24

Mathematics
1 answer:
Nikitich [7]3 years ago
7 0
Answer: 100

Explanation:

24 x 4 = 96

Ehen rounded, it is 100
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A driveway is shaped like a parallelogram with a base of 28 ft and a height of 17 ft. covering the driveway with crushed stone w
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1309 should be the anwser
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4 years ago
The heights of a maple tree and a cherry tree have a ratio of 5:2. If the maple tree grew 20 cm and 20 cm was cut off the top of
elena-14-01-66 [18.8K]
Let x be the <span>heights of a maple tree and y be the height of the cherry tree.
We know: 
</span>\frac{x}{y} = \frac{5}{2}
<span>The new ratio is obtained like this:
</span>\frac{x+20}{y-20} = \frac{3}{1}.
From the above equation we get x= (y-20)\frac{3}{1} -20.
then \frac{ (y-20)\frac{3}{1} -20}{y} = \frac{5}{2}
Solving the above equation for y we get: y=160
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3 years ago
Please help me with this geometry problem
Natalka [10]
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4 years ago
Write the equation of the line from the given information. slope 1/2, through (4,-3)
wariber [46]

Answer:

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Step-by-step explanation:

We can write the equation in point slope form

y-y1 = m(x-x1)

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3 years ago
4x^2-21x-18=0<br> Find the discriminate
SpyIntel [72]

a = 4, b = -21, c = -18

to keep from getting "mixed up", evaluate the discriminant first ...

b<sup>2</sup> - 4ac = (-21)<sup>2</sup> - 4(4)(-18) = 729

sqrt(729) = 27

x = (21 +/- 27)/8

x = -3/4, x = 6

since the discriminant is a perfect square, the original quadratic will factor ...

4x<sup>2</sup> - 21x - 18 = 0

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6 0
3 years ago
Read 2 more answers
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