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Elena-2011 [213]
3 years ago
11

Write an expression for the calculation double 2 and then add 5

Mathematics
2 answers:
valina [46]3 years ago
7 0

Answer:


Step-by-step explanation:


ankoles [38]3 years ago
6 0

The expression could be 2(2) + 5, or 2 squared + 5, as well.

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Solve: X^3 = 27 it's solve for X <br><br> I just need some help
Leokris [45]

Answer:

X = 3

Step-by-step explanation:

3^3 = 9, 9^3 = 27.

5 0
2 years ago
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What is the amplitude of the sinusoid's graph? y = -4 sin 3x
GrogVix [38]

Answer:

Amplitude = 4

Step-by-step explanation:

The general form of a sine curve would be  y=ASin(bx)  where A is the <u>"amplitude"</u>, or the "tallness" or "shortness" of the graph.

Technically, amplitude is the absolute value of the number that is multiplied in front of "Sin". So the amplitude is 4.

<u>Note:</u> The negative sign in front of 4 plays the role of "flipping" the curve upside down.

6 0
3 years ago
A pool is filled with 2,980 quarts of water. How many gallons of water are in the pool?.
Vladimir [108]

Answer:

B. 745 gallons

Step-by-step explanation:

<em><u>4 quarts = 1 gallon</u></em>

There are may ways to solve this, the easiest way is to divide the number of quarts by 4 (there are 4 quarts in a gallon).

2980 quarts /4  quarts = 745 gallons

8 0
3 years ago
Which system of linear inequalities is represented by the graph x+5y&gt;5 y&lt;2x+4
grandymaker [24]

Answer:

The lines represent the inequalities .

Further explanation:

The linear equation with slope m and intercept c is given as follows.

The formula for slope of line with points   and   can be expressed as,

Given:

The inequalities are as follows.

a. x – 5y < –5 and y < –2x – 4

b. x + 5y > 5 and y < 2x + 4

c. x – 5y < –5 and y < –2x + 4

d. x + 5y > 5 and y < 2x – 4

Step-by-step explanation:

The blue line intersects y-axis at , therefore the y-intercept is 4.

The blue line intersect the points that are  and .

The slope of the line can be obtained as follows.

The slope of the line is m = 2.

Now check whether the inequality included origin or not.

Substitute  in equation y=x+1.

0 is not greater than 1 which means that the inequality doesn’t include origin.

Therefore, the blue line is y < 2x + 4.

The orange line intersects y-axis at , therefore the y-intercept is 1.

The orange line intersect the points that are  and  .

The slope of the line can be obtained as follows.

The slope of the line is m =  .

Now check whether the inequality included origin or not.

Substitute  in equation y > .

0 is not greater than 1 which means that the inequality doesn’t include origin.

Therefore, the orange line is y > .

Solve the equation y > .

The equation of orange line is 5y + x > 5.

Option (a) is not correct as it satisfy the inequalities of the graph.

Option (b) is correct as it satisfy the inequalities of the graph.

Option (c) is not correct as it satisfy the inequalities of the graph.

Option (d) is is not correct as it satisfy the inequalities of the graph.

Hence,  is correct.

7 0
3 years ago
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2x^2+28x+98=0 factor completely
Julli [10]
2(x+7)^2=0 would be your answer :)
4 0
3 years ago
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