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3 years ago

What is this |7| = suppose to mean

Mathematics

2 answers:

romanna [79]3 years ago

4 0

Answer:

Step-by-step explanation:

|7|

The bars on the outside means absolute value

It means calculate what is on the inside and then take the positive value

The positive value of 7 is 7

If we had | 3-7| We would find 3-7 = -4 then take the positive value = 4

Anestetic [448]3 years ago

3 0

Answer:

It is meaning basically the absolute value.

Step-by-step explanation:

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How can proportional reasoning help solve a problem

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3 years ago

Write the equation of the circle graphed below

Serjik [45]

Given:

Given that the circle is graphed with center (-1,1)

We need to determine the equation of the circle.

Radius:

To determine the radius of the circle, let us simply count the number of units between the center point to any point on the circle.

Hence, from the figure, it is obvious that there are 5 units between the center and any point on the circle.

Thus, radius of the circle is 5 units.

Equation of the circle:

The standard form for the equation of the circle is given by

$(x-h)^{2}+(y-k)^{2}=r^{2}$

where the center is (h,k) and radius is r.

Substituting the center (-1,1) and r = 5 in the above formula, we get;

$(x+1)^{2}+(y-1)^{2}=5^{2}$

$(x+1)^{2}+(y-1)^{2}=25$

Thus, the equation of the circle is $(x+1)^{2}+(y-1)^{2}=25$

7 0

3 years ago

Pls instruct me on this.

Levart [38]

For x = ay - bz:

Add bz to both sides:

ay = x + bz

Divide a on both sides:

y = (x + bz)/a

For xy + yz = 10:

Distribute y from the left side:

y * (x + z) = 10

Divide by x + z:

y = 10/(x + z)

For (ab - ac)/z = x:

Multiply by z on both sides:

ab - ac = xz

Take out a from the left side:

a * (b - c) = xz

Divide by b - c on both sides:

a = xz/(b - c)

8 0

3 years ago

How many cups of sorbet are needed to make 8 cups of punch?

lana66690 [7]

The answer is 1.2 cups

8 0

3 years ago

Read 2 more answers

A bag contains 13 pieces of candy. In how many ways can five pieces be selected?

Whitepunk [10]

Five pieces can be selected in 1287 ways

Step-by-step explanation:

When the selection has to be made without considering the order of selection, combinations are used.

The formula for combination is:

$C(n,r) = \frac{n!}{r!(n-r)!}$

Here

Total candies = n = 13

Candies to be selected = r = 5

Putting the values in the formula

$C(13,5) = \frac{13!}{5!(13-5)!}\\=\frac{13!}{5!8!}\\=1287\ ways$

Five pieces can be selected in 1287 ways

Keywords: Combinations, selection

Learn more about combinations at:

#LearnwithBrainly

3 0

3 years ago