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svetoff [14.1K]
2 years ago
11

7 less than three times m is n

Mathematics
2 answers:
Deffense [45]2 years ago
4 0
If it's 4 less than 2 times a number if would be 
<span>2x - 4</span>
UkoKoshka [18]2 years ago
3 0
Your answer is 3m-7=n

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For the function h(x)= 4x^2-5x, what is the value of h(-3)?
sleet_krkn [62]

Answer:

h(-3) = 51

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right

<u>Algebra I</u>

  • Function Notation

Step-by-step explanation:

<u>Step 1: Define</u>

h(x) = 4x² - 5x

h(-3) is x = -3

<u>Step 2: Evaluate</u>

  1. Substitute:                    h(-3) = 4(-3)² - 5(-3)
  2. Exponents:                   h(-3) = 4(9) -  5(-3)
  3. Multiply:                        h(-3) = 36 + 15
  4. Add:                              h(-3) = 51
3 0
2 years ago
A single die is rolled once. Find the probability of rolling a number less than 7.
Jobisdone [24]

Answer:

1/6

Step-by-step explanation:

The die is rolled once, so it is 1 out of the total number on the die ie 6, as a die has only faces or sides so its obvious out of these 6 faces only one will show.

4 0
3 years ago
Alli rolls a standard -sided die twice. What is the probability of rolling integers that differ by on her first two rolls?
Virty [35]
Okay lol i lol i i lol lol lol just said that he’s not
3 0
2 years ago
scores on the act college entrance exam follow a bell-shaped distribution with mean 18 and standard deviation 6. Wayne's standar
WITCHER [35]

Answer:

His actual score is 15

Step-by-step explanation:

Here, we are interested in calculating Wayne’s actual score on the ACT

when we say the scores have being standardized, it means the score was reported in terms of the z-score and not the initial raw scores.

Now, mathematically, for the scores to have a negative z-score, it means it is actually below the mean.

The formula for the z-score or standard score is given below;

z-score = (x - mean)/SD

where in this case, x = ? which is the score we are looking for , z-score = -0.5 , mean score = 18 and standard deviation of the scores = 6

So, substituting these values into the z-score equation, we have;

-0.5 = (x-18)/6

x-18 = 6(-0.5)

x -18 = -3

x = -3 + 18

x = 15

7 0
3 years ago
A 150-N bird feeder is supported by three cables. Find the tension in each cable.
Irina-Kira [14]
X axis : -t1 cos 60 + t2 cos 60 = 0
 
            t2 cos 60   = t1 cos 60    ; t2   = t1

Y axis : t1 sin 60  + t2 sin 60 - 150 = 0

since t2 = t1

2t1 sin 60 =  150

t1 ( sqrt(3)/2)  = 150/2

t1   = 50 [sqrt(3)]

t2 = 50 [sqrt(3)]

t3 = 150 N

hope this helps


6 0
3 years ago
Read 2 more answers
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