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bezimeni [28]
3 years ago
8

A construction company is digging a hole for a swimming pool.The hole will be 12 yards Long 7 yards wide and 3 yards deep how ma

ny cubic yards of dirt will the company need to remove
Mathematics
1 answer:
Elan Coil [88]3 years ago
6 0

Answer:

252 cubic yards

Step-by-step explanation:

So to find the volume, we need to multiply the width, length and height. So we have 12*7*3 or 84*3 or 252.

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1+1000000000000000000000
solniwko [45]

Answer:

1000000000000000000001

Step-by-step explanation:

Done. You're welcome

4 0
3 years ago
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HELPPPPPPPP! Which is true regarding secants and chords?
cricket20 [7]

Answer:

Chords and secants intersect the perimeter of a circle twice. Chords are segments entirely within a circle, while secants are lines or rays that extend through a circle.

Explanation:

A line intersecting a circle in two places is referred to as a secant.  The portion of the secant contained within the circle is called a chord.

This means that both chords and secants intersect the perimeter of a circle twice, chords are entirely inside the circle, and secants extend through a circle to the outside.

3 0
3 years ago
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1/5 (4-3x) = 1/7 (3x - 4) pls solve
natulia [17]

\huge \boxed{\mathfrak{Question} \downarrow}

  • \large\sf\frac{1}{5} (4 - 3x) =  \frac{1}{7} (3x - 4) \\

\large \boxed{\mathfrak{Answer \: with \: Explanation} \downarrow}

\frac{1}{5} (4 - 3x) =  \frac{1}{7} (3x - 4) \\

Use the distributive property to multiply 1/5 by 4-3x.

\frac{1}{5}\times 4+\frac{1}{5}\left(-3\right)x=\frac{1}{7}\left(3x-4\right)  \\

Multiply 1/5 and 4 to get 4/5.

\frac{4}{5}+\frac{1}{5}\left(-3\right)x=\frac{1}{7}\left(3x-4\right)  \\

Multiply 1/5 and -3 to get -3/5.

\frac{4}{5}+\frac{-3}{5}x=\frac{1}{7}\left(3x-4\right)  \\

Use the distributive property to multiply 1/7 by 3x-4.

\frac{4}{5}-\frac{3}{5}x=\frac{1}{7}\times 3x+\frac{1}{7}\left(-4\right)  \\

Multiply 1/7 and 3 to get 3/7 & 1/7 × -4 to get -4/7.

\frac{4}{5}-\frac{3}{5}x=\frac{3}{7}x-\frac{4}{7}  \\

Subtract \frac{3}{7}x\\ from both sides.

\frac{4}{5}-\frac{3}{5}x-\frac{3}{7}x=-\frac{4}{7}  \\

Combine -\frac{3}{5}x\\ and -\frac{3}{7}x\\ to get -\frac{36}{35}x\\.

\frac{4}{5}-\frac{36}{35}x=-\frac{4}{7}  \\

Subtract 4/5 from both sides.

-\frac{36}{35}x=-\frac{4}{7}-\frac{4}{5}  \\

The least common multiple of 7 and 5 is 35. Convert -4/7 and 4/5 to fractions with denominator 35.

-\frac{36}{35}x=-\frac{20}{35}-\frac{28}{35}  \\

Because -\frac{20}{35} \\ and \frac{28}{35}\\ have the same denominator, subtract them by subtracting their numerators.

-\frac{36}{35}x=\frac{-20-28}{35}  \\

Subtract 28 from -20 to get -48.

-\frac{36}{35}x=-\frac{48}{35}  \\

Multiply both sides by -\frac{35}{36}\\, the reciprocal of -\frac{36}{35}\\.

x=-\frac{48}{35}\left(-\frac{35}{36}\right)  \\

Multiply -\frac{48}{35}\\ by -\frac{35}{36}\\ by multiplying the numerator by the numerator and the denominator by the denominator.

x=\frac{-48\left(-35\right)}{35\times 36}  \\

Carry out the multiplications in the fraction \frac{-48\left(-35\right)}{35\times 36}\\.

x=\frac{1680}{1260}  \\

Reduce the fraction 1680/1260 to its lowest terms by extracting and cancelling out 420.

\huge \boxed{ \boxed{ \bf \: x=\frac{4}{3}  \approx \: 1.33}}

3 0
3 years ago
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A group of 300 housewives was interviewed to determine if there is a preference for one of two detergents. Detergent A was favor
san4es73 [151]

Answer: Using Chi-square.

Step-by-step explanation: To check if the provided data show any differences in preference for the two detergents (i.e., two variables), a Chi-square can be deployed, as it is used to test the goodness of fit, and test if two variables are related.

If the value obtained is less than 0.05, it means that there is statistical difference between the preference for the two detergents.

However, if the obtained value is higher than 0.05, it translates that there is no statistical difference between the preference for the two detergents.

3 0
3 years ago
Find the measure of angle x in the figure below:
Olenka [21]
The two triangles are the same.

Find the third angle of the triangle on the bottom.

All 3 angles of a triangle add up to 180.

65 + 65 = 130

Now subtract it from 180:

180 - 130 = 50

So 'x' is equal to 50 degrees.
3 0
3 years ago
Read 2 more answers
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