PLEASE HELP!!
if y(x) = 5x-2 and g(x) = 2x + 1, find (f + g)(x).

Answer:

5x =10

Step-by-step explanation:

The rate of change of the function is -4.

The slope of a line indicates the direction and the steepness of the line. The formula for the slope of a line passing through the points (x₁,y₁) and (x₂, y₂) is m = (y₂-y₁)/(x₂-x₁).

Consider the two points (1,15) and (2,11).

The rate of change of the function is nothing but the slope of the line passing through the points (1,15) and (2,11) which is:

m = (11 - 15)/(2 -1)

m = -4

Hence, the rate of change of the function is -4.

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Answer:

5/4 page

Step-by-step explanation:

5/8 * 2 = 10/8 = 5/4

Answer:

b=-5

Step-by-step explanation:

Divide by -9 to eliminate the -9 on -9b

(Since -9b is the same thing as -9 times b we can use the inverse of multiplication which is division to eliminate the -9 from b but we need to do it on both sides to make it balance)

-9b/-9=45/-9

b=-5

Answer:

(-3x)^2 = (-3)^2(x^2)

=9x^2

Let me know if this helps!

creo que quieres decir la suma

si es la suma eso da 2.8

Answer:360

Step-by-step explanation:g-g5

The rate of interest will be 0.35.

Compound interest is the interest calculated on the principal and the interest accumulated over the previous period.

[tex]CI = P(1+\frac{r}{n}) ^{nt} -P[/tex]

and, the Amount is given by

[tex]A = P(1+\frac{r}{n} )^{nt}[/tex]

Where,

A is amount

P is principal

r is rate of interest

n is number of times interest is compounded per year

t is time

According to the given question

Principal, P = $210

Amount, A = $250

Time, t = 5 years

n = 1

Therefore, the interest rate is given by

Amount = [tex]P(1+\frac{r}{n}) ^{nt}[/tex]

⇒[tex]250 = 210(1+\frac{r}{1}) ^{5}[/tex]

⇒[tex]\frac{250}{210} =(1+r)^{5}[/tex]

⇒[tex]1.19 = (1+r)^{5}[/tex]

⇒[tex]\sqrt[5]{1.19} = 1+r\\[/tex]

⇒ 1.035 = 1 + r

⇒ r = 1.035 - 1

⇒ r = 0.35

Hence, the interest rate is o.35.

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Answer:

There will be close to 30 football players but probably not exactly 30 football players who get a popsicle.

Step-by-step explanation:

Its correct on Khan Academy

Answer:

C.6 squared

Step-by-step explanation:

Answer:

40

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Puedes resolverlo simplificando la ecuación.

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You can solve it by simplifying the equation.

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Answer:

50 - 8 - 30 + 28 =

(50 + 28) - (8 + 30) =

78 - 38 =

40

Its much easier to solve 78 - 38 than 50 - 8 - 30 + 28, which is why you simplify the question before calkylating it.

sorry i dont know Spanish...

but hope i could help :D

Answer:

A (29)

Step-by-step explanation:

If it's a parallelogram, then opposite sides are parallel.  This means that

20=x-9.  Add 9 to both sides and the you get x=29.  

Answer:6. 7 8.22 10.24 7.12 9.22 11.9

Step-by-step explanation:

Answer:

6y=7

7x=12

8m= 22

9 n= 22

10 x= 24

11 y=9

Answer:

B. h(d) = 0.5d +12; 15 days

Step-by-step explanation:

here they want to write an equation to describe the growth of the plant.  set y = height of the plant (in cm).  set x = days (since planting).  the plant was planted on day 0 (x=0).  We know that the plant was 12 cm tall when it was first planted, so we know that y(0) = 12 cm.  y(0) just means the value of the equation y when x = 0, or y(x=0), or just y(0).  Every day the plant grows .5 cm so we know the value of y will increase at .5cm for every x days, or .5x.  Add the initial value of y (where x=0) and you have the equation y = 12 + .5x  (in cm).  usually we write equations in meters and not cm, so you can change it to y = .12 +.005x (in meters).  

now just set your equation equal to .185 meters and solve for x

.185 = .12 + .005x

.065 = .005x

x = 13 days

Answer

(a) Find out the  a rule to describe the function.

To prove

Let us assume that the days be represted by d .

Let us assume that the height of plant be represted by y.

As given

A zucchini plant in Darnell’s garden was 12 centimeters tall when it was first planted.

it has grown approximately 0.5 centimeter per day.

Than the function becomes

y = 12 + 0.5 × d

y = 12 + 0.5d

(b) Find out after how many days will the zucchini plant be 0.195 meter tall .

To prove

Let us assume that the days be represted by d .

As given

A zucchini plant in Darnell’s garden was 12 centimeters tall when it was first planted.

it has grown approximately 0.5 centimeter per day.

As

1meter = 100cm

0.195 meter convert into centimeter.

= 19.5cm

Than the equation becomes

12 + 0.5d = 19.5

0.5d = -12 + 19.5

0.5d = 7.5

d = 15 days

Therefore 15 days will the zucchini plant be 0.195 meter tall .

a) 12 + 0.5d               d=day

b) 0.195/0.5=0.39d

Answer:

15 days will the zucchini plant be 0.195 meter tall .

Step-by-step explanation:

(a) Find out the  a rule to describe the function.

To prove  

Let us assume that the days be represted by d .

Let us assume that the height of plant be represted by y.

As given

A zucchini plant in Darnell’s garden was 12 centimeters tall when it was first planted.  

it has grown approximately 0.5 centimeter per day.

Than the function becomes

y = 12 + 0.5 × d

y = 12 + 0.5d

(b) Find out after how many days will the zucchini plant be 0.195 meter tall .

To prove  

Let us assume that the days be represted by d .

As given

A zucchini plant in Darnell’s garden was 12 centimeters tall when it was first planted.

it has grown approximately 0.5 centimeter per day.

As

1meter = 100cm

0.195 meter convert into centimeter.

= 19.5cm

Than the equation becomes

12 + 0.5d = 19.5

0.5d = -12 + 19.5  

0.5d = 7.5

d = \frac{7.5}{0.5}

d = 15 days  

Therefore 15 days will the zucchini plant be 0.195 meter tall .

Answer: 60 miles

Step-by-step explanation:

On a map, Indy and Fort Wayne are 19 centimeter apart while Kokomo and Indy are 9.5 cm apart on the map.

In real life, Indy and Fort Wayne are actually 120 miles apart, the distance between Indy and Kokomo in real life would then be:

= 9.5 × 120/19

= 120/2

= 60 miles

Indy and Kokomo are 60 miles apart in real life.

Answer:

x= 3 hope it helps thanks

Answer:

you just multiply normaly and the decimals get multiplied too

Step-by-step explanation:

4.6*8.3=38.18 4*8= 38 and 6*3= 18 so the answer is 38.18

Answer:

Infinite solitutions

Step-by-step explanation:

The expressions are the exact same, so there are infinite solutions.

Answer:

infinite solutions

Step-by-step explanation:

Answer:

(-2, 0) and (8, 0)

Step-by-step explanation:

x2 - 6x - 16 = 0

(x - 8)(x + 2) = 0

x = -2, 8.

Answer:

54 square millimeters

Step-by-step explanation:

Answer:

Is a surface area a volume? Because if so its 27. And if its just the flat surface then its 9.

Answer:

$324.46

Step-by-step explanation:

$405 × 0.05= $20.25 is how much it is marked up if the original price is $405.

$405 +$ 20.25 = $425.25 is the new total of the clarinet

Now 30 % of $425.25... $425.25×0.30= $127.58 is what 30% is.

You have to subtract th $127.58 from $425.25 to get the discounted price.

$425.25 - $127.58 = $297.67

Next you have to calculate for the 9% and add it to the discounted price.

$297.67 × .09 = $26.79

$297.67 + $26.79= $324.46

$324.46 is the cost of the clarinet.

Answer:

It would be 123

Step-by-step explanation:

Answer:

a) C

b) 4.5[tex]cm^{2}[/tex]

Step-by-step explanation:

Use the formula:

Apply this to triangle A

Solve.

Apply this to triangle B

Solve.

Apply this to Triangle C

Solve

As you can see, Triangle C has the greatest area.

Answer:

1. 2/5s + 8

2. -24

Step-by-step explanation:

1.

2/5(s + 20)

(2/5)(s) + (2/5)(20)

2/5s + 8

2.

-6(12 - 8)

(-6)(12) - (-6)(-8)

-72 + 48

-24

Answer:

5% increaseeee

Answer:

1

Step-by-step explanation:

12/15 can be simplified as 4/5, 4/5 can be rewritten as 8/10, or 80%. 0 is of course 0%, 1/2 is 50%, and 1 is 100%. 80% is closest to 100%, so 12/15 is closest to 1.

Answer:

$2968

Step-by-step explanation:

First, converting R percent to r a decimal

r = R/100 = 4%/100 = 0.04 per year,

then, solving our equation

I = 2650 × 0.04 × 3 = 318

I = $ 318.00

The simple interest accumulated

on a principal of $ 2,650.00

at a rate of 4% per year

for 3 years is $ 318.00.

Answer:

In 11 months, the number of DVDs sold and Blue-Ray discs sold will be same, 791 of each.

Step-by-step explanation:

In the equation d = 923-12t, substitute 505+26t (from the second equation) for 'd'. We get

505 + 26t = 923 - 12t

-505 + 12t   -505 + 12t

38t     =       418

t=11

d = 923-12(11) = 791

d = 505+26(11) = 791

After 11 months, selling 791 of each.

Hope this helps.

Answer:

791

Step-by-step explanation:

        The answer is option two