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2 years ago

How do graphs help you understand the data?

Mathematics

1 answer:

Juli2301 [7.4K]2 years ago

8 0

Answer:

Sometimes, data can be better understood when presented by a graph than by a table because the graph can reveal a trend or comparison.

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Solve for x: y = a + cx

sergey [27]

Answer:

$\large{x=\frac{y-a}{c}}$

Simplified

$\large{x=\frac{y}{c}-\frac{a}{c}}$

You can either choose simplified or the first one. Both solutions work.

Step-by-step explanation:

First, we have to isolate x-term.

$\large{y=a+cx}$

This form of equation is called "Literal Equation" where y-term is currently isolated. Now we are going to isolate x-term by subtracting both sides by a-term.

$\large{y-a=a+cx-a}\\\large{y-a=cx}$

We can say that we simply move the term to the another side and change the sign to the opposite (From plus to minus)

The next thing we are going to do is to divide the whole equation by c-term. Remember, we do not just divide y-term or a-term. We divide the whole expression.

$\large{\frac{y-a}{c}=\frac{cx}{c}}\\\large{\frac{y-a}{c}=x}$

Finally, the x-term is isolated and thus been solved.

The form of $\large{\frac{y-a}{c}}$ can be simplified to $\large{\frac{y}{c}-\frac{a}{c}}$

5 0

3 years ago

Read 2 more answers

Sophie uses 18 beads to make a neckalace , 3/6 of the beads are purple

valentinak56 [21]

Answer:

9 beads are purple

Step-by-step explanation:

we know that

To find out how many beads are purple, multiply the total beads by the fraction of the beads that are purple

therefore

9 beads are purple

Another way to solve the problem is convert the fraction in percentage

we have

If the total are 18 beads

50% is 9 beads

therefore

9 beads are purple

4 0

3 years ago

Solve 7w^2+28=84, where w is a real number

juin [17]

Answer:

2 square root of 2 and -2 square root of 2

Step-by-step explanation:

6 0

4 years ago

In an equilateral triangle, each angle is represented by 5y+3. What is the value of y?

mylen [45]

Answer:

y= 11.4

Step-by-step explanation:

In an equilateral triangle, each angle is the same

180/3=60

So each angle equals 60

5y+3 =60

Subtract 3 from each side

5y +3-3 = 60-3

5y = 57

Divide by 5

5y/5 = 57/5

y = 11.4

7 0

4 years ago

24. Ninety-four percent of NCSU transfers feel that their college adequately prepared them to handle upper-division coursework a

s2008m [1.1K]

Answer:

The answer is " $0.99999340657 \sim 1$ ".

Step-by-step explanation:

$Sucess \ probability \ (p) = 94\% \ or\ 0.94\\\\Sample\ numbers\ n = 14\\$

Using formula:

$P(X=r)= ^n C_r \times p^r \times (1-p)^{n-r}$

Let

$\to r=8,9,10,11,12,13 \ or\ 14\\\\$

Substituting the value for all r:

$P(X=8)= 0.00008540547\\\\P(X=9)= 0.00089201264\\\\P(X=10)= 0.00698743233\\\\P(X=11)= 0.03980719025\\\\P(X=12)= 0.15591149513\\\\P(X=13)= 0.37578668058\\\\P(X=14)= 0.42052319017\\$

Therefore,

$P(X>7)= P(X=8)+P(X=9)+....P(X=14)\\\\= 0.99999340657 \sim 1.$

7 0

3 years ago