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2 years ago

Anyone good at Linear Equations and Intercepts if so please help. This stuff makes me feel stupid.

Mathematics

1 answer:

Anettt [7]2 years ago

6 0

If I can offer a suggestion ... You ought to look back in your book, or notes,
or homework, and recall what "intercept" means, and what one looks like.

The "y-intercept" of an equation is the point where
the graph crosses the y-axis.
On this graph, the line crosses the y-axis at y=5 .

The "x-intercept" of an equation is the point where
the graph crosses the x-axis.
On this graph, the line never crosses the x-axis at all.
(That DOESN't mean the x-intercept is zero. It means there isn't any.)

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olga nikolaevna [1]

Answer:

Step-by-step explanation:

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2 years ago

Jack bought 3 protein bars for a total of $4.26 which equation could be used to find the cost c on dollars of each protein bar

kramer

Answer: (C)

<u>Solution:</u>
Jack bought 3 bars for $4.26 thus the cost of each bar can be defined as:

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3 years ago

Express the equation x = 10 and y = -3 as a linear equation in two variables

34kurt

Answer:

For x = 10:

$x + 0y - 10 = 0$

For y = - 3:

$0x + y + 3 = 0$

Step-by-step Explanation:

Before we start let's recall the formula for the linear equations.

$ax + bx = c$

So first let's solve for x=10:

$x = 10$

Move 10 to the other side.

$x - 10 = 0$

As there is no y given we will simply write 0y.

$x + 0y - 10= 0$

Now let's solve for y=-3:

$y = - 3$

Move -3 to the other side.

$y + 3 = 0$

As there is no x given we will simply write 0x.

$0x + y + 3 = 0$

If this answer helped you, give this answer a heart, rate it and if you could then please mark it brainliest. Thanks!

8 0

1 year ago

The director of a state agency believes that the average starting salary for clerical employees in the state is less than $35 c

MrRissso [65]

Answer:

There is not enough evidence to conclude that average starting salary for clerical employees in the state is less than $35,000 per year.

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 35,000 dollars per year

Sample mean, $\bar{x}$ = 34,700 dollars per year

Sample size, n = 100

Alpha, α = 0.10

Population standard deviation, σ = 3,500 dollars per year

First, we design the null and the alternate hypothesis

$H_{0}: \mu = 35,000\text{ dollars per year}\\H_A: \mu < 35,000\text{ dollars per year}$

We use one-tailed z test to perform this hypothesis.

Formula:

$z_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{\sigma}{\sqrt{n}} }$

Putting all the values, we have

$z_{stat} = \displaystyle\frac{34700 - 35000}{\frac{3500}{\sqrt{100}} } = -0.8571$

Now, $z_{critical} \text{ at 0.10 level of significance } = -1.28$

Since,

$z_{stat} > z_{critical}$

We fail to reject the null hypothesis and accept the null hypothesis.

Thus, there is not enough evidence to conclude that average starting salary for clerical employees in the state is less than $35,000 per year.

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3 years ago

What is the additive inverse of 3x - 6

Naddika [18.5K]

Answer:

-18

Step-by-step explanation:

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2 years ago