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jek_recluse [69]
3 years ago
14

If f(x)=2x+5 and g(x)=x²+5, evaluate the functions:

Mathematics
2 answers:
Allushta [10]3 years ago
4 0

Answer:

f(-3) = -1

g(-3) = 14

Step-by-step explanation:

f(x) = 2x+5

f(-3) = 2(-3) + 5

f(-3) = -6 + 5

f(-3) = -1

g(-3) = -3^2 + 5

g(-3) = 9 + 5

g(-3) = 14

Ostrovityanka [42]3 years ago
3 0

Answer:

f(-3) = -1

g(-3) = 14

Step-by-step explanation:

plug -3 for x to get the answer

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23) Find 12 1/2% of 2 dozen​
Ipatiy [6.2K]

Answer:

3

Step-by-step explanation:

To find 12.5% of 2 dozen

We convert 2 dozen into a number which would be:

2×1 dozen (1 dozen = 12)

2×12=24

12.5% of 24 will be

10% of 24 will be 24÷10=2.4

2.5% will be 1/4 of 10%

2.5% = 2.4÷4

2.5%=0.6

12.5%=0.6+2.4

12.5%=3

5 0
2 years ago
Jennifer had a 7/8- foot board. She cut off a 1/4 foot piece that was for a project. In feet, how much of the board was left
Tems11 [23]

Answer: There was 5/8 of a foot of board left.

Step-by-step explanation:

Step 1. We need to subtract 1/4 from 7/8. To do this make it where both fractions have the same denominator.

Step 2. The easiest way to do this is to multiply 1/4 by 2.

1/4*2/2=2/8.

Step 3. Now all you got to do is subtract 2/8 from 7/8.

7/8-2/8= 5/8.

7 0
4 years ago
A regression analysis was performed to determine the relationship between the costs of a product (y), the time to make the produ
Ne4ueva [31]

Answer:

D) 205

Step-by-step explanation:

Given : Cost = 83 - 2 (time taken) + 6 (materials) + 1.1 (marketing cost)

Relationship Equation : y = 83- 2x1+ 6x2 + 1.1x3

Given, time (x1) = 5 , materials (x2) = 4 , marketing cost (x3) = 100

So, putting values, Cost : y = 83 - 2 (5) + 6 (4) + 1.1 (100)

= 83 - 10 + 24 + 110 = 207  

The closest to this calculated estimated figure ie 207, is 205.

4 0
3 years ago
The equation of the graphed line in slope point form using the point (2,-1 ) is blank and it’s equation in slope intercept is bl
valkas [14]

Answer:

y=\frac{1}{4}x-\frac{3}{2} (Slope intercept form)

y+1=\frac{1}{4}(x_-2) (Slope point form)

Step-by-step explanation:

The slope of the line can be calculated as following:

m=\frac{-1-(-2)}{2-(-2)}=1/4

The the equation of the line in slope point form is:

y-y_1=m(x_-x_1)

Where (x_1,y_1) is a point of the line.

Then you must susbtitute the point given and the slope and you obtain:

y+1=\frac{1}{4}(x_-2)

The intercept form is:

y=mx+b

Where b is the y-intercept.

Solve for y from the equation of the line in slope point form obtained above, then:

y+1=\frac{x}{4}-\frac{2}{4}\\y=\frac{1}{4}x-\frac{2}{4}-1\\y=\frac{1}{4}x-\frac{3}{2}

8 0
3 years ago
What is the value of x?<br>​
loris [4]

31°

Angles in the same segment are similar.

I'm not too sure how to explain, but in a circle when two "triangles" are formed from two same points on the circumference, the angle of the vertexes formed are the same (like in the picture)

6 0
3 years ago
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