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Mashutka [201]
2 years ago
7

Evaluate ab for a = 2 3/4 and b = 4/5.

Mathematics
2 answers:
ikadub [295]2 years ago
7 0

Answer:7 1/2

Step-by-step explanation:

Crazy boy [7]2 years ago
6 0

Rewrite a as an improper fraction:

2 3/4 = 11/4

Now you have 11/4 x 4/5

Multiply the two top numbers together and the two bottom numbers together.

11x4 / 4x5 = 44/20 now rewrite as 2 4/20 which can simplify to 2 1/5

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5x+3(x-1) = 8(x + 2) - 10
Levart [38]

Answer:

9

Step-by-step explanation:

5x+3x-3= 8x+16-10

5x+3x-8x=16-10+3

8x-8x=9

= 9

5 0
2 years ago
What linear function represents the line given by the point slope equation y+7= 2/3(x+6)?
aleksandrvk [35]

Answer:

The graph of the line in the attached figure

Step-by-step explanation:

we have

y+7=\frac{2}{3}(x+6)

This is the equation of a line into point slope form

The slope is m=\frac{2}{3}

The line pass through the point (-6,-7)

To graph the line find the y-intercept

Remember that

The y-intercept of the line is the value of y when the value of x is equal to zero

so

For x=0

y+7=\frac{2}{3}(0+6)

y+7=\frac{2}{3}(6)

y+7=4

y=4-7=-3

The y-intercept is the point (0,-3)

with the point (-6,-7) and (0,-3) plot the line

see the attached figure

8 0
3 years ago
A family has a yearly income of $40,000. They want to spend no more than 30% of their income on rent for their house. How much i
Stells [14]

Answer:

$1,000

Step-by-step explanation:

30% of $40,000 is total spendable for year

0.3*40000=12,000 yearly for rent - need to divide by 12 for monthly rent

$12,000/12 =$1000 per month maximum.

6 0
2 years ago
How did we transform from f(x) =x2 to g(x) = -3x2
Oksi-84 [34.3K]

Answer:

  f(x) is reflected over the x-axis and vertically scaled by a factor of 3

Step-by-step explanation:

If you compare the two functions, you see that ...

  g(x) = -3f(x)

Multiplication by -1 effects a reflection over the x-axis. (All y-values are transformed to their opposite.)

Multiplication by 3 is a vertical scaling by a factor of 3.

Taken together, f(x) is reflected over the x-axis and vertically scaled by a factor of 3.

7 0
3 years ago
Use the given conditions to write an equation for each line in point-slope form and slope-intercept form.
elixir [45]

Answer:

y = 1/3x        y - 0 = 1/3 (x - 0)

Step-by-step explanation:

slope intercept: y = 1/3x

point slope: y - 0 = 1/3 (x - 0)

6 0
3 years ago
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