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3 years ago

Given the graph below, what is the y-intercept(s)? Give your answer(s) as an ordered pair.

Mathematics

1 answer:

Irina18 [472]3 years ago

5 0

Answer:

(0, 4)

General Formulas and Concepts:

Algebra I

The y-intercept is the y value when x = 0. Another way to reword that is when the graph crosses the y-axis.

Step-by-step explanation:

According to the graph, the line passes the y-axis at y = 4. Therefore, our y-intercept is (0, 4).

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Last one 15 points!!!!!

Soloha48 [4]

Answer:

5 Days

Step-by-step explanation:

Step 1: Make an expression

150 - 7.50x = 112.50

Step 2: Solve the expression for x

150 - 7.50x = 112.50

150 - 7.50x - 150 = 112.50 - 150

-7.50x / -7.5 = -37.5 / -7.5

x = 5

Answer: 5 Days

3 0

3 years ago

Read 2 more answers

A study is performed in a large southern town to determine whether the average weekly grocery bill per four-person family in the

OLga [1]

Answer:

The average weekly grocery bill per four-person family in the town is significantly different from the national average.

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = $100

Sample mean, $\bar{x}$ = $103.23

Sample size, n = 25

Alpha, α = 0.05

Sample standard deviation, s = $8.82

First, we design the null and the alternate hypothesis

$H_{0}: \mu = 100\text{ dollars}\\H_A: \mu \neq 100\text{ dollars}$

We use Two-tailed t test to perform this hypothesis.

Formula:

$t_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{s}{\sqrt{n}} }$

Putting all the values, we have

$t_{stat} = \displaystyle\frac{103.23- 100}{\frac{8.82}{\sqrt{25}} } = 1.831$

Now,

$t_{critical} \text{ at 0.05 level of significance, 24 degree of freedom } = \pm 2.063$

Since,

$t_{stat} < t_{critical}$

We accept the null hypothesis.

We accept the null hypothesis and determine that the average weekly grocery bill per four-person family in the town is significantly same to the national average.

4 0

3 years ago

Read 2 more answers

HELP PLEASE!

PolarNik [594]

B) 7n−3=n+4

In this case, 'n' is used in place of the word 'number'. 'Product' refers to multiplication, so we multiply n by 7. 3 LESS refers to subtraction, so we subtract 3 from 7n. Then, we know that the solution to that is four more than what the actual number is. MORE refers to addition, so we add 4 to n.

6 0

3 years ago

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How long is the arc subtended by an angle of 7π/5 radians on a circle of radius 25 cm?

aev [14]

There are 2pi radians in circle

so

circumference times arcinradians/2pi=areclength
c=2pir
c=2pi25
c=50pi

arc in radians=7pi/5
c times arcrad/2pi=
50pi times (7pi/5)/2pi=
50pi times 7/10=
35pi

it is 35pi cm or aprox 109.95574287564276334619251841478 cm

8 0

3 years ago

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A worker's salary is increased by 12%. If the worker's original salary is represented by s, which two expressions represent the

andreyandreev [35.5K]

Step-by-step explanation:

Given that

A worker's salary is increased by 12%.

Let the worker's original salary is represented by s. It means, the new salary of the person is given by :

New salary = 12% of s

So,

$N=\dfrac{12}{100}\times s\\\\=0.12s$

Hence, this is the required solution.

7 0

3 years ago