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3 years ago

Which statement about the equation y = 5x – 8 is correct?

Mathematics

2 answers:

kati45 [8]3 years ago

8 0

Answer:

Option A

Step-by-step explanation:

It is a straight line which is in the form y = mx + b

lbvjy [14]3 years ago

7 0

9514 1404 393

Answer:

A. The equation represents a linear function because the equation is in the form y = mx + b

Step-by-step explanation:

A linear function does not have to be in the form y = mx + b, but if a function is in that form, it is a linear function.

choice A is appropriate

A function may have two variables, x and y, and not be a linear function. For example, y = x² is not a linear function. The fact that it has two variables is not what makes it linear.

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Explain whether a bar graph double bar graph or circle graph is the best way to display the following set of data

erica [24]

I would say a circle graph would be best to use

8 0

3 years ago

The average value of a function f over the interval [−2,3] is −6 , and the average value of f over the interval [3,5] is 20. Wha

Xelga [282]

Answer:

The average value of $f$ over the interval $[-2,5]$ is $\frac{10}{7}$ .

Step-by-step explanation:

Let suppose that function $f$ is continuous and integrable in the given intervals, by integral definition of average we have that:

$\frac{1}{3-(-2)} \int\limits^{3}_{-2} {f(x)} \, dx = -6$ (1)

$\frac{1}{5-3} \int\limits^{5}_{3} {f(x)} \, dx = 20$ (2)

By Fundamental Theorems of Calculus we expand both expressions:

$\frac{F(3)-F(-2)}{3-(-2)} = -6$

$F(3) - F(-2) = -30$ (1b)

$\frac{F(5)-F(3)}{5-3} = 20$

$F(5) - F(3) = 40$ (2b)

We obtain the average value of $f$ over the interval $[-2, 5]$ by algebraic handling:

$F(5) - F(3) +[F(3)-F(-2)] = 40 + (-30)$

$F(5) - F(-2) = 10$

$\frac{F(5)-F(-2)}{5-(-2)} = \frac{10}{5-(-2)}$

$\bar f = \frac{10}{7}$

The average value of $f$ over the interval $[-2,5]$ is $\frac{10}{7}$ .

4 0

2 years ago

Riley is building a garden box for his backyard. He wants the perimeter to be 32

babunello [35]

The length of the garden box would be 10ft if the width is 6ft.

7 0

3 years ago

Estimate Four over five subtracted by 1/2

Valentin [98]

Answer:

Exact form : 3/10

Decimal form : 0.3

Step-by-step explanation: To subtract fractions, find the LCD (Least Common Denominator) and then combine.

Hope this helps you out! If you need anymore help with math, let me know and I will be more than happy to help you out! ☺

-Karleif Jonsi-

3 0

3 years ago

The mean age of 9 women in an office is 27 years old.

Veronika [31]

26 to nearest year

We require the total of the sums of ages for both groups before calculating the mean for all 16

using mean = $\frac{sum}{count}$

Women

27 = $\frac{sum }{9}$ ( cross- multiply )

sum = 9 × 27 = 243

Men

25 = $\frac{sum}{7}$ ( cross- multiply )

sum = 7 × 25 = 175

Total sum of all 16 = 243 + 175 = 418

mean = $\frac{418}{16}$ = 26 ( to nearest year )

6 0

3 years ago

Read 2 more answers