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Luden [163]
3 years ago
12

I need help on this it is a fraction subtract another fraction which is negative thx to whoever helps 5/7-(-1/7)

Mathematics
1 answer:
Sav [38]3 years ago
6 0

Answer:

\frac{5}{7}-(-\frac{1}{7})=\frac{6}{7}

Step-by-step explanation:

To evaluate :

\frac{5}{7}-(-\frac{1}{7})

Solution:

Two negatives multiply to become a positive.

Thus, we can remove parenthesis by reversing the signs of the fraction by multiplying the negative outside.

⇒ \frac{5}{7}+\frac{1}{7}

Since the denominators are same for both fractions, so we simply add the numerators.

⇒ \frac{5+1}{7}

⇒ \frac{6}{7}  (Answer)

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There are several large bowls containing various amounts of tangerines
Valentin [98]

Answer:

4

Step-by-step explanation:

7 0
3 years ago
4(x-4)-3x=10 what is the answer
max2010maxim [7]

Answer:

26

Step-by-step explanation:

4(x-4)-3x=10

  • Rule = a(b + c) = ab + ac
  • Rule = a(b - c) = ab - ac

4(x-4) = 4x - 16

4(x-4)-3x=10

4x - 16 - 3x = 10

x - 16 = 10

x -16 +16 = 10 +16

x = 26

Hope this helps ^-^

6 0
3 years ago
Hello, I need this question for today but I dont get it.. Can someone please help me?​
Bas_tet [7]

Answer:

<em>A = 32²cm</em>

Hope this helped!

Step-by-step explanation:

<h3>A = lw/2</h3>

<u>We know that the width is 8cm, and that the length of the rectangle and triangle combined is 14cm.</u>

<u />

How we find the length of the triangle itself is 14cm - 6cm, since 6cm is the rectangles length (which we know because it gives it to us at the top!)

14cm - 6cm = 8cm

<h3>Now we can plug into our formula and solve</h3>

A = 8(8)/2

A = 64/2

<h3><em>A = 32²cm</em></h3>
3 0
2 years ago
A triangle has the length 11 and 4. What is the smallest possible whole number length for the third side?
kap26 [50]

Answer:

We know that the sum of the first two sides is greater than the largest side.

7 + 11 > x

x is the third side.

18 > x

x < 18

The sides of the triangle are 7, 11, and 17.

The product = 7 × 17 = 119

3 0
3 years ago
2. In a random sample of 130 World Campus students, 92 were employed full-time.
liberstina [14]

Answer:


Step-by-step explanation:

Given that sample size is 130 >30.  Also by central limit theorem, we know that mean (here proportion) of all means of different samples would tend to become normal with mean = average of all means(here proportions)

Hence we can assume normality assumptions here.

Proportion sample given = 92/130 = 0.7077

The mean proportion of different samples for large sample size will follow normal with mean = sample proportion and std error = square root of p(1-p)/n

Hence mean proportion p= 0.7077

q = 1-p =0.2923

Std error = 0.0399

For 95% confidence interval we find that z critical for 95% two tailed is 1,.96

Hence margin of error = + or - 1.96(std error)

= 0.0782

Confidence interval = (p-margin of error, p+margin of error)

= (0.7077-0.0782,0.7077+0.0782)

=(0.6295, 0.7859)

We are 95% confident that average of sample proportions of different samples would lie within these values in the interval for large sample sizes.

7 0
3 years ago
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