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polet [3.4K]
3 years ago
8

Consider the expression 4x-3 what is the value of the expression when x=7. What is the value of the expression when x=22

Mathematics
2 answers:
galben [10]3 years ago
7 0

Answer:

multiply by 4 and subtract by the 3

Step-by-step explanation:

allsm [11]3 years ago
6 0
You just plug in both numbers in the x of the equation and then multiply by 4 and subtract by the 3
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Jim’s total bill for lunch is $20. The cost of his drink is 15% of the bill. What is the percent of the total food cost? What wa
dem82 [27]

Answer:

Percent of the total food cost: 85%

Cost of the food: $17

Step-by-step explanation:

If the drink is 15% of the bill, then the other 85% is the cost of the food.

85% of 20 is 17

Stay safe! <3

6 0
3 years ago
Which exponential function is graphed here?
jek_recluse [69]

Answer:

y = 5^x

Step-by-step explanation:

y= b*(a)^x + c

c could = 1 but then you would not have an exponential function. c = 0 because the graph follows the x axis up until x = -2. Suppose c = 1. The the graph would follow y = 1 up until x = - 2

When x = 0, y = 1 which means that b. If b is anything but 0 or 1 then the y intercept would be stretched to a different place. If be = 0 then y would = 0.

So the graph is of the form y = a^x

Now when x = 0 the graph, the y intercept is y = a^0  or y = 1 So the y intercept is (0,1)

Now the next point is thing to solve for is a.

When x = 1, y = 5  (read the graph)

y = a^x

5 = a^1

5 = a because a^1 is a.

Answer

y = 5^x.

5 = a^1

4 0
3 years ago
The slope of the line below is 2. Use the coordinates of the labeled point to find a point-slope equation of the line.
stich3 [128]

Answer:

Option: D is the correct answer.

The equation of line in point-slope form is given by:

y-9=2(x-1)

Step-by-step explanation:

We know that the point-slope equation of a line is given by:

y-b=m(x-a)

where (a,b) is the point from which the line passes and m is the slope of the line.

Here we are given that:

The line passes through (1,9) and slope of the line is given to be 2.

Hence,

(a,b)=(1,9) and m=2

Hence, the equation of line is given by:

y-9=2(x-1)

Therefore, the point slope intercept equation of the line is: D

3 0
2 years ago
Linear Equations In Any Form. Help ASAP Please
Ronch [10]

The answer is y = 3/4 x + 2



<em>Explanation:</em>


Basically, the formula for a linear equation is y = mx + b

b = y-intercept

mx = slope


slope = rise/ run (pos.)

it can also be fall/ crawl (neg.)


In the graph the line meets at the y-int. at 2, the line rises 3 and goes right 4 each time.

8 0
3 years ago
Type this number in decimal form. (6×1000)+(2×100)+(1×10)+(7×1)+(8×110)+(5×1100)
Vesna [10]

Answer:

979, 717

Step-by-step explanation:

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3 years ago
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