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NemiM [27]
4 years ago
11

Factor the trinomial 3x2 + 16x + 21

Mathematics
2 answers:
Stells [14]4 years ago
3 0

Answer:

(3x+7)(x+3)

Step-by-step explanation:

Factors 3x^2+16x+21

3x^2+16x+21

=(3x+7)(x+3)

pentagon [3]4 years ago
3 0

Answer:

3 {x}^{2}  + 16x + 21 \\ 3 {x}^{2}  + 9x + 7x + 21 \\ 3x(x + 3) + 7(x + 3) \\ =  (3x + 7)(x + 3)

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The amount of money Jose spends on movie tickets varies directly with the number of tickets he purchases.
zzz [600]

7 movie tickets :)

First, we must find the unit price:

20.25/3=6.75

Now we divide:

47.25/6.75=7

I hope you are having a great day, buddy :)

Please mark me as brainliest:)

7 0
3 years ago
Solve each equation for the variable
motikmotik

Answer:

X= -50

Step-by-step explanation:

Remove the parenthesis

multiply both sides by two

x - 6 =  -56

Move the 6 to the other side

x = -56 + 6

x = -50

6 0
4 years ago
The school that Jennifer goes to is selling tickets to a play. On the first day of ticket sales the
sweet [91]

Answer:

Adult ticket = $11

Children ticket = $9

Step-by-step explanation:

Let the price of adult tickets be x and let the price of children's ticket be y

For the first day, the equation of sales can be put as

3x + 12y = 141..........1

For the second day, the equation of sales can be put as:

13x + 6y = 197............2

We then take these two equations together and solve simultaneously.

3x + 12y = 141.......1

13x + 6y = 197........2

Solving by elimination method, we Multiply through equation 1 by 13 and multiply through equation 2 by 3.

39x + 156y = 1833.........3

39x + 18y = 591..............4

Then subtract equation 4 from equation 3

138y =1242

y = 9

Substitute "y=9" into equation 1 to find x

3x + 12(9) =141

3x + 108 = 141

3x = 141 - 108

3x = 33

x = 11

Hence,

Price of adult ticket = $11

Price of children ticket = $9

6 0
4 years ago
Please answer quick!!!
Sidana [21]

Answer:

A. 30

Step-by-step explanation:

The interquartile range for a box and whiskers plot, is the value from the right side of the box minus the value of the left side of the box.

In this case at the far right side of the box it is at 130, at the far left side of the box it is at 100.

130-100=30

4 0
3 years ago
Read 2 more answers
Write an equation of the line in slope-intercept form given the graph below.
Elza [17]

Answer:

y=-1/3x-1

Step-by-step explanation:

1. Find the slope.

Start from the point on the y-axis and count down and over until you get to the other point marked on the graph. This gets you -1/3

Slope is -1/3

2. Find where the line crosses the y-axis. This is the y-intercept. On this graph, the line crosses the y-axis at (0,-1). The y-value is the intercept.

3. Put the equation in slope-intercept form. Slope intercept form is y=mx+b with mx being the slope and b being the y-intercept.

y=-1/3x-1

4 0
3 years ago
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