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3 years ago

What type of line is the graph of 4x + y = −3?

Mathematics

2 answers:

Lostsunrise [7]3 years ago

6 0

Linear graph because its x is not squared.
If it is squared, then it is quadratic... (parabola)

AURORKA [14]3 years ago

3 0

That would be a is a linear line

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1. Which solid has one base that is a rectangle and four lateral surface that are triangles?

Ber [7]

1. Triangular prism
2. Sphere i think

7 0

2 years ago

An automobile company wants to determine the average amount of time it takes a machine to assemble a car. A sample of 40 times y

aksik [14]

Answer:

A 98% confidence interval for the mean assembly time is [21.34, 26.49] .

Step-by-step explanation:

We are given that a sample of 40 times yielded an average time of 23.92 minutes, with a sample standard deviation of 6.72 minutes.

Firstly, the pivotal quantity for finding the confidence interval for the population mean is given by;

P.Q. = $\frac{\bar X-\mu}{\frac{s}{\sqrt{n} } }$ ~ $t_n_-_1$

where, $\bar X$ = sample average time = 23.92 minutes

s = sample standard deviation = 6.72 minutes

n = sample of times = 40

$\mu$ = population mean assembly time

Here for constructing a 98% confidence interval we have used a One-sample t-test statistics because we don't know about population standard deviation.

So, a 98% confidence interval for the population mean, $\mu$ is;

P(-2.426 < $t_3_9$ < 2.426) = 0.98 {As the critical value of z at 1% level

of significance are -2.426 & 2.426}

P(-2.426 < $\frac{\bar X-\mu}{\frac{s}{\sqrt{n} } }$ < 2.426) = 0.98

P( $-2.426 \times {\frac{s}{\sqrt{n} } }$ < ${\bar X-\mu}$ < $2.426 \times {\frac{s}{\sqrt{n} } }$ ) = 0.98

P( $\bar X-2.426 \times {\frac{s}{\sqrt{n} } }$ < $\mu$ < $\bar X+2.426 \times {\frac{s}{\sqrt{n} } }$ ) = 0.98

98% confidence interval for $\mu$ = [ $\bar X-2.426 \times {\frac{s}{\sqrt{n} } }$ , $\bar X+2.426 \times {\frac{s}{\sqrt{n} } }$ ]

= [ $23.92-2.426 \times {\frac{6.72}{\sqrt{40} } }$ , $23.92+2.426 \times {\frac{6.72}{\sqrt{40} } }$ ]

= [21.34, 26.49]

Therefore, a 98% confidence interval for the mean assembly time is [21.34, 26.49] .

7 0

3 years ago

Help me please I beg of you

S_A_V [24]

Answer:

Simplify

A ⋅ 13−oz.

−oz+13 A

Simplify

a⋅20+0z.

20a

List all of the solutions.

A⋅13−oz=−oz+13A 78=−oz+13a⋅20

3 0

2 years ago

45x to the 3rd power y divided by 9xy

earnstyle [38]

45x to the 3rd power y divided by 9xy

5x to the 3rd power y

3 0

3 years ago

Andre constructs the image of line n under a dilation centered at point O that is not on line n. Becca construct a different ima

GenaCL600 [577]

I think that both lines will show only 1 line because 1 line will be on top of the other. I believe this because both lines are dilated with its center at point O which does not lie on line n. Whatever dilation Andre uses may also be the dilation used by Becca since their lines centered at point O. Both lines will have the same slope and share the same coordinates.

6 0

3 years ago