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kompoz [17]
4 years ago
5

Two times a number plus four is 22. What is the number

Mathematics
2 answers:
Artist 52 [7]4 years ago
8 0
2n + 4 = 22
      -4   -4
    2n = 18
   n=9
LiRa [457]4 years ago
4 0
Use the expression to solve for the number.

2n + 4 = 22
2n = 22 - 4
2n = 18
n = 18/2
n = 9

The number is 9.

Hope this helps :)
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Find the slope of the tangent to the graph of the given function at the indicated point. HINT [Recall that the slope of the tang
Mrac [35]

f'(x)

=  8{x}^{7}

slope

8 {( - 8)}^{7}  =  -  {8}^{8}

6 0
3 years ago
Solve this equation! Please Help!<br><br> √3 x 66.15/4.41<br><br> (SHOW YOUR WORK)
finlep [7]
Hi Jessica,
<span>Remember PEMDAS (Parenthesis, Exponents, Multiplication & Division, Addition & Subtraction).

√3 x 66.15/4.41 {Exponents/Cube & Square Roots First}

1.73 x 66.15 ÷ 4.41 {Multiplication}

114.4395 ÷ 4.41 {Division}

25.95 {Final Answer}

Cheers,
Izzy</span>
7 0
3 years ago
(07.03 MC)
Umnica [9.8K]

The probability of pulling a blue marble and the coin landing tails up is 360/2500

<h3>How to determine the probability?</h3>

The tables of values are given as:

Color     Times

Blue        18

Green     20

Yellow    12

Heads    Tails

20          30

The probability of obtaining a blue marble is:

P(Blue) = 18/50

The probability of landing tails up is:

P(Tail) = 20/50

The required probability is:

P = P(Blue) * P(Tail)

This gives

P = 18/50 * 20/50

Evaluate the product

P = 360/2500

Hence, the probability of pulling a blue marble and the coin landing tails up is 360/2500

Read more about probability at:

brainly.com/question/25870256

#SPJ1

8 0
2 years ago
How many times does the graph of the function below intersect touch the x-axis? y= -3x^2 + x + 4
inessss [21]

Answer:

2 times

Step-by-step explanation:

Well let's first graph the quadratic equation,

Look at the image below ↓

By looking at the image below we can tell that the graph touches the x axis 2 times at,

<u>(-1,0)</u>

<u>(1 1/3,0)</u>

<em />

<em>Thus,</em>

<em>the parabola touches the x axis twice.</em>

<em />

<em>Hope this helps :)</em>

6 0
3 years ago
(CO 3) A survey indicates that shoppers spend an average of 22 minutes with a standard deviation of 8 minutes in your store and
padilas [110]

Answer: 0.60

Step-by-step explanation:

Given: Mean : \mu = 22\text{ minutes}

Standard deviation : \sigma = 8\text{ minutes}

The formula to calculate z is given by :-

z=\dfrac{x-\mu}{\sigma}

For x= 20 minutes

z=\dfrac{22-20}{8}=0.25

The P Value =P(z

Hence, the probability that a randomly selected shopper will spend less than 20 minutes in the store= 0.60

5 0
3 years ago
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