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Zielflug [23.3K]
2 years ago
15

What is the vaule of -2 1/6 - 1 1/4 + 1 3/4? A. -1 2/3 B. -1 1/3 C. 2 1/3 D. 2 2/3

Mathematics
2 answers:
Scorpion4ik [409]2 years ago
8 0

Answer: A. -1 2/3

-2 1/6 - 1 1/4 + 1 3/4 (convert from mixed numbers to improper fractions)

= -13/6 - 5/4 + 7/4 (multiply to have the same LCD)

= -26/12 - 15/12 + 21/12

= -20/12 (convert back to a mixed number)

= -1 8/12 (simplify the mixed number)

= -1 2/3

riadik2000 [5.3K]2 years ago
6 0

Answer: A. -1 2/3

Step-by-step explanation:

-2 1/6 - 1 1/4 + 1 3/4 = -1 8/12 = -1 2/3

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Is 3/8 bigger than 4/10
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Answer:

no 4/10 is bigger than 3/8

Step-by-step explanation:

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3 years ago
How many feet is in 215 yards
Lilit [14]
645 feet.

Explanation:
We know that are 3 feet in a yard, so let's set up a proportion to solve this

x215
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We are solving for n. To get from 1 to 215, we multiply by 215. So to get from 3 to the answer, we must multiply by 215 as well. 3 x 215 = 645, therefore that is the answer.
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3 years ago
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You want to make a rectangular banner that is 18ft. Long with a trim around the entire border of the banner . You have no more t
lys-0071 [83]

Answer:

6 ft

Step-by-step explanation:

Given that:

Length of rectangular banner = 18 ft

Total trim of banner available = 48 ft

To find:

Possible widths of the banner = ?

Solution:

Maximum trim available of the banner around the entire border of the banner = 48 ft

i.e. we are given the total perimeter of the rectangular banner.

Formula for perimeter of a rectangle is given as:

Perimeter = 2 \times (Length + Width)

Putting the values of perimeter and length to find the value of width.

48 = 2 \times (18 + Width)\\\Rightarrow 48 =36+2 \times Width\\\Rightarrow 2 \times Width = 48-36\\\Rightarrow 2 \times Width = 12\\\Rightarrow \bold{Width = 6\ ft}

So, width possible is <em>6ft.</em>

3 0
3 years ago
Riley has collected surveys for her final thesis project. One one question, 46.1% of respondents said that conditions were impro
ira [324]

Answer:

The maximum value of the confidence interval for this set of survey results is 51.73%.

Step-by-step explanation:

A confidence interval has two bounds, a lower bound and an upper bound.

These bounds depend on the sample proportion and on the margin of error.

The lower bound is the sample proportion subtracted by the margin of error.

The upper bound is the margin of error added to the sample proportion.

In this question:

Sample proportion: 46.1%

Margin of error: 5.63%.

Maximum value is the upper bound:

46.1+5.63 = 51.73

The maximum value of the confidence interval for this set of survey results is 51.73%.

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If f(x)=x+2 and g(x)=x^2 , what is (g•f)(0)?
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Exact value of that equation is 4
4 0
3 years ago
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