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leva [86]
3 years ago
10

-7 over 8 ÷ 7 over -4

Mathematics
2 answers:
Vlad1618 [11]3 years ago
7 0

Answer:

1/2

Step-by-step explanation:

neonofarm [45]3 years ago
6 0

Answer:

1/2

Step-by-step explanation:

−7/8÷7/−4=?

In the second fraction, move the negative sign from the denominator to the numerator and the value remains the same.

The equivalent equation is

−7/8÷−7/4=?

Dividing two fractions is the same as multiplying the first fraction by the reciprocal (inverse) of the second fraction.

Take the reciprocal of the second fraction by flipping the numerator and denominator, leaving the negative sign on the numerator, and changing the operation to multiplication. Then the equation becomes

−7/8×−4/7=?

For fraction multiplication, multiply the numerators and then multiply the denominators to get

−7×−4/8×7=28/56

This fraction can be reduced by dividing both the numerator and denominator by the Greatest Common Factor of 28 and 56 using

GCF(28,56) = 28

28÷28/56÷28=1/2

Therefore:

−7/8÷7/-4=1/2

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Answer:

41.89

explanation:

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hope that helps :)

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3 years ago
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Which equation should be used to calculate the 43rd partial sum for the arithmetic sequence.
MariettaO [177]

Answer: First Option : Sₙ= n/2(a₁ + aₙ)

Step-by-step explanation:

The nth partial sum of an arithmetic sequence or the sum of the first n terms of the arithmetic series can be defined as the sum of a finite number of term in an arithmetic sequence.

It is calculated using the formula:

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6 0
2 years ago
James is considering buying a home priced at $104,000. If the current market
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$106,000

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3 years ago
The area of a square is A = s², where s is the length of one side of the square. What is the side length s for each square? Drag
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3. if kx² + 2x + k = -kx have equal roots, find the values of k.<br>​
crimeas [40]

Answer:

k = - \frac{2}{3} , k = 2

Step-by-step explanation:

Using the discriminant Δ = b² - 4ac

The condition for equal roots is b² - 4ac = 0

Given

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kx² + 2x + kx + k = 0 , that is

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k - 2 = 0 ⇒ k = 2

5 0
4 years ago
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