1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
GaryK [48]
3 years ago
9

Solve for x 8x+2=42 what is the answer?

Mathematics
2 answers:
marta [7]3 years ago
4 0

<h3>Answer :</h3>

x = 5

Step-by-step explanation:

<h3>: Given equation </h3><h3> • 8x + 2 = 42 </h3><h3> 8x = 42 – 2</h3><h3> 8x = 40</h3><h3> x = 40/8 = 5</h3><h3> x = 5</h3>
nata0808 [166]3 years ago
4 0

Answer:

Hi, There! I'm here to help! :)

<u><em>The Correct Answer is x = 5</em></u>

<u><em /></u>

Step-by-step explanation:

Here's your Equation below <3

8x + 2 = 42

8x = 42 – 2

8x = 40

x = 40/8 = 5

x = 5

<em>Hope this helps!</em>

<em />

<em />*Baka*<em />

You might be interested in
Sandy is working with a carpenter to frame a house. They are using 8-foot-long boards, but each board must be cut to be 94.6 inc
shtirl [24]
7 foot is the answer...
7 0
3 years ago
1.) what does X equal 4x = -12 <br> 2.)
Eddi Din [679]

Answer:

-3

Step-by-step explanation:

this is x equals to -3

we can divide the 4 to other side

7 0
3 years ago
Read 2 more answers
The number of dogs compared to the number of cats owned by the residents of an apartment complex is represented by the model bel
vesna_86 [32]

Answer:

Where is the model ?

Step-by-step explanation:

3 0
3 years ago
A new cell tower is being constructed and needs a guy-wire connected 180 feet up the tower and it needs to make an angle of 52°
nevsk [136]

Answer:

228.42 ft

Step-by-step explanation:

To solve for this question, we would be applying the Trigonometric function of Sine.

Sin theta = Opposite/Hypotenuse

Theta = 52°

Opposite = 180ft

Hypotenuse = Length of the wire = x

Hence:

sin 52 = 180/x

x = 180/sin 52

x = 228.42327871 ft

Approximately = 228.42 ft

6 0
2 years ago
Suppose that the sample standard deviation was s = 5.1. Compute a 98% confidence interval for μ, the mean time spent volunteerin
NISA [10]

Answer:

The 95% confidence interval would be given by (5.139;5.861)  

Step-by-step explanation:

1) Previous concepts

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".

The margin of error is the range of values below and above the sample statistic in a confidence interval.

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

\bar X represent the sample mean for the sample  

\mu population mean (variable of interest)

s represent the sample standard deviation

n represent the sample size  

2) Confidence interval

Assuming that \bar X =5.5 and the ranfom sample n=1086.

The confidence interval for the mean is given by the following formula:

\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}   (1)

In order to calculate the critical value t_{\alpha/2} we need to find first the degrees of freedom, given by:

df=n-1=1086-1=1085

Since the Confidence is 0.98 or 98%, the value of \alpha=0.02 and \alpha/2 =0.01, and we can use excel, a calculator or a table to find the critical value. The excel command would be: "=-T.INV(0.01,1085)".And we see that t_{\alpha/2}=2.33

Now we have everything in order to replace into formula (1):

5.5-2.33\frac{5.1}{\sqrt{1086}}=5.139    

5.5+2.333\frac{5.1}{\sqrt{1086}}=5.861

So on this case the 95% confidence interval would be given by (5.139;5.861)    We are 98% confident that the mean time spent volunteering for the population of parents of school-aged children is between these two values.

5 0
3 years ago
Other questions:
  • A moving van charges a flat rate of $25 per day plus $0.12 per mile for every mile over 100 driven. If Millie’s bill was $29.46
    9·1 answer
  • Please help with these one variable linear inequalities
    15·1 answer
  • Amy thinks that 5 to the power of 3 is 3x 3 x 3, or 27. Explain what Amy is doing wrong.
    8·1 answer
  • Matrices and determinants What is 4c?
    10·2 answers
  • What is the surface area?<br> 1 mm<br> 7 mm<br> 3 mm<br> square millimeters
    5·1 answer
  • Estimate and then compute each product. Check that your answer is reasonable.<br> 531<br> X 47
    12·1 answer
  • Consider the two expressions representing the degree measures of the labeled angles.
    8·1 answer
  • Pipe A can fill 3 tanks in 8 minutes. Pipe B can fill 5 tanks in 10 minutes. How long will it take for them to fill a single tan
    5·1 answer
  • There are seven quarters in the bottom of a tote bag. Three of those quarters were minted in 2019, two were minted in 2001, and
    12·1 answer
  • Find the surface area of the pyramid. The side lengths of the base are equal.<br><br> pls help D:
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!