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ratelena [41]
3 years ago
14

Evaluate 6a +3ab, when a=4 and b=5

Mathematics
1 answer:
Gwar [14]3 years ago
8 0
To evaluate this, plug in the number 4 for the variable a and the number 5 for the variable 5.

6a + 3ab
6(4) + 3(4)(5)

To solve this multiply then add.
Multiply from left to right and don't add until everything has been multiplied.
Basically, 6(4) + 3(4)(5) = (6 • 4) + (3 • 4 • 5).
6 • 4 = 24
3 • 4 = 12
12 • 5 = 60

Now we have 24 + 60.
Just add and you have your answer!
24 + 60 = 84

So when a is 4 and b is 5, <span>6a + 3ab is equal to 84.

Hope this helps!</span>
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Blizzard [7]
The answer is <span>1.16 thank you</span>
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3 years ago
What is the x-intercept (-5,-5) (10,-2)
Andre45 [30]

Answer:

(20,0)

Step-by-step explanation:

slope = (y2 - y1) / (x2 - x1)

(-5,-5).....x1 = -5 and y1 = -5

(10,-2)...x2 = 10 and y2 = -2

slope = (-2 - (-5) / (10- (-5) = (-2 + 5) / (10 + 5) = 3/15 = 1/5

y = mx + b

slope(m) = 1/5

use either point, I will use (10,-2)...x = 10 and y = -2

now we sub

-2 = 1/5(10) + b

-2 = 2 + b

-2 - 2 = b

-4 = b

so the equation for this line is : y = 1/5x - 4

to find the x intercept, sub in 0 for y and solve for x

y = 1/5x - 4

0 = 1/5x - 4

-1/5x = -4

x = -4 * -5

x = 20.......so ur x intercept is (20,0) <====

6 0
3 years ago
Using the illustration, type the equivalent fraction.​
Katen [24]
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gavmur [86]

Answer:

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Step-by-step explanation:

Before rounding: 0.07230693556

After rounding: 0.1

Hope this helps!!!!

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3 years ago
What is Point-Slope Form? What is Slope Intercept Form? What is the Slope Formula?
kipiarov [429]

Answer:

For the first part

1.) Negative

2.)zero

3.) undefined

4.) positive

The point slope formula is y-y1=m(x-x1). It is best to use if you already know the slope and one other point on the line. It is used to find another point on the line.

The slope-intercept form is used to show a line. To use this form, you need to know the slope and the y-intercept.

The slope formula is y=mx+b. M is the slope while b is the y-intercept.

8 0
3 years ago
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