What is the value of
2x2 + 3x + 12, when x = 7?

Answer:

7.5

Step-by-step explanation:

there is 1.5 cups of sugar for each cup of flour

1.5x5=7.5

Answer:

7.5 cups of sugar

Step-by-step explanation:

3/2 = 1.5 (this means there is 1.5 cups of sugar for every one cup of flour)

5 * 1.5 = 7.5

Answer:

51.8

Step-by-step explanation:

20+18.2=38.2

90-38.2=51.8

Answer:

8.3

Step-by-step explanation:

(20)²=(18.2)²+x²

400=331.24+x²

400-331.24=x²

68.76=x²

√68.76=x

8.3=x

Given:

The graph of two function f(x) and g(x).

To find:

The value of f(4) and the value of x if g(x)=2.

Solution:

In the given graph red curve is the graph of f(x) and the blue curve is the graph of g(x).

From the given graph it is clear that the value of the function f(x) at x=4 is -10. So,

[tex]f(4)=-10[/tex]

From the given graph, it is clear that the value of function g(x) is 2 at x=0. So,

[tex]g(x)=2,x=0[/tex]

Therefore, the value for the first blank is -10 and the value for the second blank is 0.

Answer:

B- 18

Step-by-step explanation:

it occured twice and the rest occurred only once.

Have a great day.

brainiest is appreciated!

Answer:

Its i think 549

Step-by-step explanation:

Answer:

100 Minutes.

Step-by-step explain:

25 divided by 3 = 8.33333333333, So, 8.3 minutes to paint one section at a time. So, 8.3 x 12 = 99.6. So, 99.6 rounded since the last number is higher than 5 it would go to the next number. So, rounded its 100 minutes.  100 minutes for Angela to paint 12 sections.

Answer:

The answer is A, the first one 3÷1/3 =9

9514 1404 393

Answer:

Step-by-step explanation:

1. The horizontal asymptote is the y-value the function approaches, but does not reach. That value is y = 0. This equation is the equation of that asymptote.

__

2. The domain is the horizontal extent of the graph. It covers "all real numbers." (A)

__

3. The range is the vertical extent of the graph. As we said in part 1, the value y = 0 is never reached, so the vertical extent (range) is y > 0 (E).

__

4. The graph extends upward indefinitely as x extends to the left indefinitely. That is, y → infinity.

Answer:

D. ∆ABC ~ ∆DEF

Step-by-step explanation:

The triangles given shows that the three corresponding angles of both triangles are congruent to each other. This means that they have the same shape but different size.

Triangles that are congruent to each other have the same shape and the same size while triangles that have the same shape but different size are similar to each other.

Therefore, ∆ABC is similar to ∆DEF (∆ABC ~ ∆DEF).

Answer:

the selling price of the office equipment is R3040

Step-by-step explanation:

original price of the office equipment, C = R3800

discount for the selling price, d = 20% = 0.2

Discounted amount = 0.2 x R3800

                                 = R760

The selling price of the office equipment is calculated as follows;

The selling price = original price - discounted amount

The selling price = R3800 - R760

                             =  R3040

Therefore, the selling price of the office equipment is R3040

Answer:

b. 15.39 L

Step-by-step explanation:

Given;

reacting mass of the Nitrogen gas N₂, m = 42 g

pressure of the gas, P = 2 atm

temperature of the gas, T = 250 K

molar mass of Nitrogen, N = 14 g/mol

molar mass of Nitrogen gas N₂, M = 28 g/mol

number of moles of the given Nitrogen gas;

[tex]n = \frac{Reacting \ mass}{Molar \ mass} = \frac{m}{M} \\\\n = \frac{42 \ g}{28 \ g/mol} = 1.5 \ mol.[/tex]

The volume occupied by the Nitrogen gas can be calculated from Ideal gas law;

PV = nRT

where;

V is the volume of the gas

R is ideal gas constant = 0.0821 atm.L / mol.K

From the equation above, make V the subject of the formula;

[tex]V = \frac{nRT}{P} \\\\V = \frac{1.5\ mol. \ \times \ 0.0821 \ atm.L/mol.K \ \times \ 250 \ K}{2 \ atm} \\\\V = 15.39 \ L[/tex]

Therefore, the volume occupied by the Nitrogen gas is 15.39 L

Answer:

D.)  4

Step-by-step explanation:

Here,

1.25(4x-10)=7.5

5x-12.5=7.5

5x=7.5+12.5

x=20/5

x=4

Answer:So, the prime factors of 90 are 2 × 3 × 3 × 5 or 2 × 32 × 5, where 2, 3 and 5 are the prime numbers.

Step-by-step explanation:

Answer:

x/sin35=24/sin90

24sin35=xsin90

x=24×0.5736

x=13.7658

to the nearest tenth=13.8

Answer:

0 Days: 100

1 Day: 135

2 Day: 170

3 Day: 205

Step-by-step explanation:

When they originally rent the car, it only costs 100 dollars.

Though each day forward, you pay 35 more dollars

Answer:

Day Zero: $100

Day One: $135

Day Two: $170

Day Three: $205

Step-by-step explanation:

You have to pay thirty-five dollars more for every day renting, plus the one-hundred dollar starting fee. By adding thirty-five dollars to the equation for every day the car is used, you will find your answer.

Answer:

32

Step-by-step explanation:

you have to find how many min in a hour so 20 divided by 5 is 4 then 4x8 is 32

1.  2/16

2. 3/24

3. 4/32

4. 8/64

I hope they are helpful

Answer:

2/16 3/24 4/32 5/40

Step-by-step explanation:

Answer:

1/20

Step-by-step explanation:

1/10x5/10=5/100=1/20

Step-by-step explanation:

3×10-(16/2)

30-8

the answer is 22

Answer:

g≥-20

Step-by-step explanation:

The quotient of a number g and -4 is expressed as;

g/-4

If the quotient of a number g and -4 is at most 5, this is expressed as;

g/-4 ≤ 5

Multiply both sides by -4

g/-4 * -4 ≤ 5 * -4

g *  ≥ -20

Hence the required solution is g≥-20

Answer:

Step-by-step explanation:

Answer:

circumference (c) = 43.96cm

Area (A) = 615.44cm²

Step-by-step explanation:

Here,

Radious (r) = 7 cm

circumference (c) = [tex]2\pi r[/tex]

                            = 2×3.14×7

                            =43.96cm

Area (A) = [tex]4\pi r^{2}[/tex]

              = 4×3.14×7²

               =12.56×49

               = 615.44cm²

Answer:

area:153.86m²

circumfrence:43.96m

Step-by-step explanation: