All categories

2 years ago

HELP ASAP PLEASE!!!

Mathematics

2 answers:

Varvara68 [4.7K]2 years ago

7 0

Answer:

Step-by-step explanation:

The answer is B. If you use this site called Desmos Graphing Calculator. Type out all the possible answers, and use the process of elimination.

Mariana [72]2 years ago

7 0

Answer:B

Step-by-step explanation:

When you add to x, it goes up

subtract from x and it goes down

in this case, you wanna add to x, and add 3

You might be interested in

What is the value of p so the expression 5/6 - 1/3n is equivalent to p(5-2n )

PtichkaEL [24]

Im pretty sure your answer is 1/6

6 0

2 years ago

Equivalent expression of 5(y+4) =

Andrew [12]

Answer:

5y + 20

Step-by-step explanation:

5 (y+ 4) =

5(y) + 5(4) =

5y + 20

<em>Hope that helps!</em>

<em>-Sabrina</em>

6 0

2 years ago

Read 2 more answers

What is the area of a prism

Yanka [14]

Answer:

A. =ph+2B since i answerd yours can you answer my new one

Step-by-step explanation:

6 0

2 years ago

A nutrition laboratory tested 25 "reduced sodium" hotdogs of a certain brand, finding that the mean sodium content is 310 mg wit

inessss [21]

Answer:

The 95% confidence interval is $295.9 < \mu< 324.1$

A 95% level of confidence mean that there is 95% chance that the true population mean will be in this interval

Step-by-step explanation:

From the question we are told that

The sample size is $n = 25$

The mean is $\= x = 310 \ mg$

The standard deviation is $\sigma = 36 \ mg$

Given that the confidence level is 95% then the level of significance is mathematically represented as

$\alpha = 100 - 95$

=> $\alpha = 5\%$

=> $\alpha = 0.05$

Next we obtain the critical value of $\frac{\alpha }{2}$ from the normal distribution table , the value is

$Z_{\frac{\alpha }{2} } =Z_{\frac{0.05 }{2} } = 1.96$

Generally the margin of error is mathematically represented as

$E = Z_{\frac{\alpha }{2} } * \frac{\sigma }{\sqrt{n} }$

substituting values

$E = 1.96 * \frac{36 }{\sqrt{25} }$

$E = 14.1$

The 95% level of confidence interval is mathematically represented as

$\= x - E < \mu$

substituting values

$310- 14.1 < \mu< 310+ 14.1$

$295.9 < \mu< 324.1$

The 95% level of confidence mean that there is 95% chance that the true population mean will be in this interval

6 0

3 years ago

Find the area of each sector.

sergey [27]

Answer:

D. $\frac{525\pi}{8}$ m²

Step-by-step explanation:

Area of the sector = ½*r²∅

Where,

Radius (r) = 15 m

Angle in radians (∅) = $\frac{7\pi}{12}$

Plug in the values into the equation

Area of sector = $\frac{1}{2} * 15^2 * \frac{7\pi}{12}$

Area of sector = $\frac{1}{2} * 225 * \frac{7\pi}{12}$

Area of sector = $\frac{1*225*7\pi}{2*12}$

Area of sector = $\frac{1,575\pi}{24}$

Simplify

Area of sector = $\frac{525\pi}{8}$

5 0

2 years ago