Who know this answer to this question

Answer:

f(3) = 0

Explanation:

To find f(3) substitute x = 3 in the equation.

Given equation:

f(x) = -2x + 6

By substituting x = 3:

f(3) = -2(3) + 6

f(3) = -6 + 6

f(3) = 0

Answer:

297 cm^2

Step-by-step explanation:

297 centimeters squared

The requried area of the shaded sector is 296.73 cm², which is closest to option D: 297 cm².

The area of a sector is the fractional part of the area of a full circle that is enclosed by the central angle of the sector. To find the area of a sector, we can use the formula:

Area of sector = (θ/360) x πr^2

Here,
To find the area of the shaded sector, we need to first find the area of the whole circle and then multiply it by the fraction of the circle that is shaded.

The area of a circle with a radius of 18 cm is given by A = πr², where r is the radius. So, the area of the whole circle is:

A = πr² = π(18 cm)² = 324π cm²

To find the fraction of the circle that is shaded, we need to find the central angle of the sector. The central angle of the sector is given as 105°. The fraction of the circle that is shaded is equal to the central angle of the sector divided by the total central angle of the circle (which is 360°):

Fraction of circle shaded = Central angle of sector / Total central angle of a circle

= 105° / 360°

= 7/24

Therefore, the area of the shaded sector is:

Area of shaded sector = Fraction of circle shaded x Area of the whole circle

= (7/24) x (324π cm²)

≈ 296.73 cm²

So, the approximate area of the shaded sector is 296.73 cm², which is closest to option D: 297 cm².

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Answer:

There is not sufficient proof to support the claim.This is a type II error.

Step-by-step explanation:

This is the type II error where the null hypothesis is wrong. But as you have failed to reject the null hypothesis and would not accept the alternate hypothesis it is type II error.

It means that there is not enough statistical evidence to prove your alternative claim.Your claim cannot be accepted or supported through given statistical data.

There is not sufficient proof to support the claim.

When null hypothesis is false then the wrong decision gives a type II error.

Answer:7

Step-by-step explanation:

1st,
g(x) = 5-x
g(4) = 5-4 = 1

then
f(x) = x^2+6x
(fg)(4) = f(g(4)) = 1^2+6(1) = 1+6 = 7

you can ask questions for clarification

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Work Shown:

For each store, divide the cost over the size to get the unit price.

Round each result to the nearest penny. We see that Eat Right Grocery has the lowest unit price, or price per pound.

----------------------

Further explanation:

Let's look at the first row of the table. This says that 2 pounds of rice cost 2.32 dollars. We can form an equation of sorts

2 pounds = 2.32 dollars

Divide both sides by 2 to turn that "2 pounds" into "1 pound". This is because "price per pound" really means "price per 1 pound" or "price for each 1 pound"

So we get

2 pounds = 2.32 dollars

2/2 pounds = 2.32/2 dollars

1 pound = 1.16 dollars

Telling us the unit cost for Eat Right Grocery is $1.16 per pound. The other stores unit prices are calculated the same way.

Answer: Numbers that are in opposite positions on the number line. Such as −6 and +6. Or −150 and +150. When we add opposite numbers we get 0.

Step-by-step explanation:

Answer:

first one all the way to the left because they are each increasing at a constant rate

Step-by-step explanation:

Answer:

You have to pay close attention to the Order of Operations.

10(6+4)/2. Grouping symbols first.

6+4=10.

10(10)/2

10*10=100.

100/2.

50 is your answer

Step-by-step explanation:

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Answer:

θ = 55° (Approx)

B = 16.5 (Approx)

Step-by-step explanation:

Given:

In Δ first;

H = 7

B  = 4

Cos θ = B/H

Cos θ = 4 / 7

Cos θ = 0.57

θ = 55° (Approx)

Given:

In Δ second;

B = x

P = 8

θ = 26°

Tan θ = P / B

Tan 26° = 8 / x

0.4877 = 8 / x

x = 16.5 (Approx)

B = 16.5 (Approx)

Answer:

c

Step-by-step explanation:

9514 1404 393

Answer:

  graphs left to right have a=1, a=0.25, a=-1

Step-by-step explanation:

A negative value of 'a' makes the parabola open downward, so the rightmost graph goes with a=-1.

A value of 'a' less than 1 flattens the graph, so the middle graph goes with a=0.25.

A value of 1 gives a standard open-upward parabola, corresponding to the leftmost graph.

Answer: it’s already in the correct order.

Step-by-step explanation:

Answer: 10 miles

Step-by-step explanation:

46.30 = 4.25x + 3.80    -   Subtract 3.80 from both sides

42.50 = 4.25x                -   Divide both sides by 4.25

10 = x

Step-by-step explanation:

so, to translate the first 2 paragraphs into math notation :

200 + 14×x < 3000

that transforms then to

14x < 2800

and then

x < 2800/14 = 200

so, x < 200

the number of attending people must be under 200.

therefore up to 199 people can attend.

FYI : the request was that the costs must be under the $3000 budget. therefore, we used "<".

if we were allowed to actually reach (and empty) the full budget, then we would have used "<=" (less than our equal), and 200 people could attend.

Answer:

18

Step-by-step explanation:

basic math .... hopefully it helped

Answer:

18

Step-by-step explanation:

Answer:

47.1 cm

Step-by-step explanation:

The circumference of a circle is denoted by C = 2πr, where r is the radius.

Here, we see that the given radius is 7.5, so r = 7.5 cm. We also are given that we need to use the approximation 3.14 for π, so plug all these into the formula:

C = 2πr

C = 2 * 3.14 * 7.5 = 47.1

To round this to the nearest hundredth... well, there's no hundredth place, so we can leave this as is or just write 47.10 cm.

Thus, the circumference is 47.1 cm.

Answer:

x

−

3

x

−

2

Step-by-step explanation:

Answer:

Yes, because her calculation should be 70% of 240.

Step-by-step explanation:

69% can be estimated to 70% and

242 can be rounded off to 240.

70% of 240 = 0.7 * 240

                   = 168

Answer:

Answer is "X=42"

Step-by-step explanation:

Answer:

21 and 96

Step-by-step explanation:

Let x and y be the two numbers such that x>y.

As the sum of both the numbers is 96.

x+y=96...(i)

As the larger number is nine less than four times the smaller number,

So, x=4y-9

From equation (i),

4y-9+y=96

5y=96+9=105

So, y=105/5=21

By using equation (i),

x=96-y=96-21=75

Hence, both the numbers are 21 and 96.

Answer:

After 2 years the account worth will be $3225

Step-by-step explanation:

Initial Deposit (Principal Amount P) = $3000

Rate r = 4.1% = 0.041

Compounded quarterly = n = 4

Time t = 2 years

We need to find future value A

The formula used is: [tex]A=P(1+\frac{r}{n})^{nt}[/tex]

Putting values in formula and calculating A

[tex]A=P(1+\frac{r}{n})^{nt}\\A=3000(1+\frac{0.041}{4})^{4*2} \\A=3000(1+0.01025)^{8} \\A=3000(1.01025)^8\\A=3000(1.085)\\A=3225[/tex]

So, After 2 years the account worth will be $3225

The number do the contents of the cell which represent 7.688E + 7 is 76,880,000

A number is written in scientific notation when a number between 1 and 10 is multiplied by a power of 10.

Given:

7.688E + 7

which also can be written as

=7.688 * 10^7

=7.688 * 10000000

=76,880,000

Hence, the number do the contents of the cell is  76,880,000

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The equations that could be used to determine the dollar amount of phone sales will be:

0.07x + 0.03y = 85

y = 2x

Let x represent the total dollar amount of the phone sales she makes.

Let y represent the total dollar amount of the computer sales she makes.

Colton earns a 10% commission on the total dollar amount of all phone sales she makes, and earns a 4% commission on all computer sales. If she earned a total of $162 in commission, it means that

0.07x + 0.03y = 85

She had twice as much in computer sales as she had in phone sales. This means that y = 2x.

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Answer:

210 boys

Step-by-step explanation:

the ratio is 7 boys to 5 girls. There are 150 girls at the school. Divide 150 by 5 to get your answer which is 30. We know that we have to divide because the ratio answer is a simplified version of 150, like if we were doing fractions. Then multiply 30 times 7 and you will get 210. So there are 210 boys at the school.

Answer: 3.4

Step-by-step explanation:

[tex]\sqrt{9}[/tex]=3

[tex]\sqrt{16}[/tex]=4

16-9=7

12-9=3

3/7 ==> 0.4

[tex]\sqrt{12}[/tex]=

[tex]\sqrt{9+3}[/tex]=

[tex]\sqrt{9}+0.4[/tex]=

3+0.4=3.4

Answer: first off the first is 240 2. is 320 in total so its the 2cnd one

Step-by-step explanation: ez math if you get wrong LOL R I P YOU

Answer:

They are Alternate Interior angles

Step-by-step explanation:

The reson for this is because both Angel's are inside the parallel lines, and on Alternate sides.

^^

Answer:

4/3

Step-by-step explanation:

I used a slope calculator to solve