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Darina [25.2K]
4 years ago
6

Do you add or subtract functions?

Mathematics
1 answer:
mestny [16]4 years ago
6 0
You can both add and subtract fractions, but before you do, you need to fin a common denominator. This means that you have to get the bottom number the same In both fractions by multiplying. But whatever you do to the denominator, you also have to do to the numerator. For example, 4/5+2/3. you have to find a number that both the bottom numbers(denominators) can multiply into such as, in this case, 15. so now you have 4/15+2/15, but you need to do the same thing that you did to the denominator to the numerator. Since we multiplied 5 by 3 to get 15 in 4/5 then you have to multiply the 4 by 3 as well  which gets 12/15. Now you have to do the same with the other fraction, since we multiplied 3 by 5 to get 2/15 we have to multiply the 2 by 5 as well which comes up to 10/15. Now you can add the fractions 12/15 and 10/15 to get 22/15 or 1-7/5. follow the same steps with subtraction.
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Using the ratio of perfect squares method, what is square root of 79 rounded to the nearest hundredth?
beks73 [17]
In the most common sense,
 8.88 would be your answer 
i believe that that t\answer is correct. if it is not please tell me. 

also, please mark me brainliest. i want to up my rank
really hope
i helped



thnx


5 0
3 years ago
A Iine passes through the point (9,-8) and has a slope of
baherus [9]

Answer:

y = 2/3x + b

(Find b first with the steps below)

Step-by-step explanation:

The equation is y = mx + b and m is the slope. You were already given the slope and you were even given a point. All you have to do is graph the point and use the slope until it intercepts the y-axis.

  1. Plot the point (9,-8)
  2. Go up 2, left 3 spots until the line hits the y-axis (the vertical one)
  3. That point is what b will be equal to in y = mx + b
5 0
4 years ago
Solve the equation <br> r/3=7
nika2105 [10]

\dfrac r3 = 7 \\\\\implies r = 3 \times 7 = 21

4 0
3 years ago
Read 2 more answers
The table below represents a linear function f(x) and the equation represents a function g(x):
Elza [17]

Answer:

(a) The slope of f(x) is greater than the slope of g(x)

(b) f(x) has a greater y intercept

Step-by-step explanation:

Given

\begin{array}{cc}x & {f(x)} & -1&-9&0&-1&1&7 \ \end{array}

g(x) = 3x - 2

Solving (a): Compare the slopes

The slope (m) of f(x) is calculated as;

m = \frac{f(x_2) - f(x_1)}{x_2 - x_1}

This gives:

m = \frac{f(0) - f(1)}{0 - 1}

m = \frac{f(0) - f(1)}{- 1}

Substitute values for f(0) and f(1)

m = \frac{-1 - 7}{- 1}

m = \frac{-8}{- 1}

m = 8

The slope of g(x) can be gotten using the following comparison

g(x) = mx + b

m \to slope

So:

g(x) = 3x -2

m = 3

m_{f(x)} > m_{g(x)}

Solving (b): Compare the y intercept

y intercept is when x = 0

From the table of f(x)

f(0) = -1

From the equation of g(x)

g(x) = 3x -2

g(0) = 3*0-2

g(0) =-2

<em></em>f(0) > g(0)<em></em>

6 0
3 years ago
II need help ill give brainliest
DanielleElmas [232]

Answer:

1/4

Step-by-step explanation:

Based off the data we can determine that there are 4 different types of items. Since any of them can be checked out next, the probability is 1/4.

5 0
2 years ago
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