Evaluate 2x^3 + 5x^2 + 4x + 8 when x = -2

Answer:

It is

Step-by-step explanation:

Using Pythagoras 51^2 = 50^2 + b^2

b=10.0499  

Answer:

1/20 and 0.05 :)

Step-by-step explanation:

Answer:

[tex] = 3 \frac{4}{5} \\ [/tex]

Step-by-step explanation:

[tex] 1\frac{1}{2} + 2 \frac{3}{10} \\ \frac{3}{2} + \frac{23}{10} \\ \frac{15 + 23}{10} \\ = \frac{38}{10} \\ = 3 \frac{8}{10 } \\ = 3 \frac{4}{5} [/tex]

hope this helps

brainliest appreciated

good luck! have a nice day!

Answer:

6π cm

Attached is the missing image

Step-by-step explanation:

The circumference of a circle can be expressed as;

C = 2πr

The length of an arc with angle ∅ (in radian) can be expressed as;

Arc Length = radius × radian angle

L = r∅

Given; from the attached image

Radius r = 18 cm

Radian angle ∅ = π/3 radians

Substituting the values;

Arc length L = 18cm × π/3 = 18/3 π cm

Arc length L = 6π cm

Answer:

its A

Step-by-step explanation:

6 CM

Answer:

Look below

Step-by-step explanation:

Since the opposite sides are congruent then the figure is a parallelogram.

Answer:

c

Step-by-step explanation:

C because your looking for y*48 which is 48y. It is c because (y*40)+(y*8) gives you 40y+8y which equals 48y.

Answer:

C.

Step-by-step explanation:

(y•40)+(y•8)

40y+8y

48y

48•y

Answer: log1= 1

not sure about Mk

Answer:

k*log_10M

Step-by-step explanation:

take the k and put it in front of the equation and it cannot be further simplified.

Answer:

  3

Step-by-step explanation:

f(x) has the variable in the exponent, so is an exponential function.

The base is 3.

__

The base is what is being raised to the power of x.

Answer:

82.45

Step-by-step explanation:

The price of the purse is 75.99 and tax is 8.5%

Tax = price  time tax rate

tax = 75.99*.085

tax =6.45915

Rounding to the nearest cent

tax = 6.46

Add this to the price of the purse

total cost = 75.99+6.46

                  82.45

Answer:

Option 4.

Step-by-step explanation:

The information is that the points G and H are the midpoints of ED and EF.

For example G will be  (5 + (-2))/ 2 , (4 - 0) / 2 which is  (1.5, 2).

If we calculate H it is (6.5, -3).

The answer is option 4.

Answer:

1619

Step-by-step explanation:

I = 180 - 43 - 26 = 111

using sine rule

[tex]\frac{i}{sin 111} = \frac{760}{sin 26}[/tex]

i = 1618.5 = 1619

Answer:

Step-by-step explanation:

Answer:

The 95% confidence interval for the overall noncompliance proportion is (0.0387, 0.1169).

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of [tex]\pi[/tex], and a confidence level of [tex]1-\alpha[/tex], we have the following confidence interval of proportions.

[tex]\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]

In which

z is the zscore that has a pvalue of [tex]1 - \frac{\alpha}{2}[/tex].

For this problem, we have that:

[tex]n = 180, \pi = \frac{14}{180} = 0.0778[/tex]

95% confidence level

So [tex]\alpha = 0.05[/tex], z is the value of Z that has a pvalue of [tex]1 - \frac{0.05}{2} = 0.975[/tex], so [tex]Z = 1.96[/tex].

The lower limit of this interval is:

[tex]\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.0778 - 1.96\sqrt{\frac{0.0778*0.9222}{180}} = 0.0387[/tex]

The upper limit of this interval is:

[tex]\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.0778 + 1.96\sqrt{\frac{0.0778*0.9222}{180}} = 0.1169[/tex]

The 95% confidence interval for the overall noncompliance proportion is (0.0387, 0.1169).

Answer:

Step-by-step explanation:

If we let c and p represent the cups of cheese and plates of nachos, we have ...

  c = 2/3p . . . . . each plate of nachos requires 2/3 cups of cheese

Solving for p, we find ...

  (3/2)c = p . . . . . multiply by 3/2

Then for 5 cups of cheese, we have ...

  (3/2)(5) = p = 15/2 = 7 1/2 . . . . plates of nachos

5 cups of cheese will make 7 full plates of nachos.

__

For 9 plates of nachos, we need ...

  c = 2/3(9) = 6 . . . . . . cups of cheese

Since we have 5 cups of cheese, we need 1 more cup of cheese to make 9 plates of nachos.

Answer:

the number is 65.

Step-by-step explanation:

n-16=49

n=65

Therefore, the number is 65.

Answer:

126

Step-by-step explanation:

this is because you have 3 angles so its a triangle you have 360 degrees so 360 - 108 = 252 you need to divide it by 2 as there are 3 angles so you get 126 i hope it helps

Answer:

A = 1/2 b*h

b = 6

h = 6

A = 1/2*36

A = 18 cm^2

The answer is 18 cm^2.

Hope this helps

Answer:

-3n+31

Step-by-step explanation:

ok

The nth term of the sequence 28, 25 ,22, 19, 16 is aₙ=31-3n.

Sequence is an enumerated collection of objects in which repetitions are allowed and order matters.

The given sequence is 28, 25 ,22, 19, 16

Twenty eight comma twenty five comma twenty two comma nineteen comma sixteen.

The sequence is an arithmetic sequence as there is a common difference between consecutive terms.

The first term is a=28

Common difference =25-28=-3

aₙ=28+(n-1)(-3)

aₙ=28-(n-1)(3)

aₙ=28-3n+3

aₙ=31-3n

Hence the nth term of the sequence 28, 25 ,22, 19, 16 is aₙ=31-3n.

To learn more on Sequence click:

https://brainly.com/question/21961097

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Answer:

Step-by-step explanation:

79+80+92+92+81+100+88+98+71+100+91+90

=1,062/12 = 88.5

Answer:

Option C

Step-by-step explanation:

Add all grades together:

79 + 80 + 92 + 92 + 81 + 100 + 88 + 98 + 71 + 100 + 91 + 90 = 1062

Divide the total by the number of grades in the set:

1062/12 = 88.5

The average of the grades is 88.5%, therefore Option C should be the correct answer.

Answer:

3000

Step-by-step explanation:

Just mulitiply 400 by 750 and you get 300000

then you put back the decimal place

3000.00

so it is 3000

Answer:

11.2

Step-by-step explanation:

Because

x-20%=11

x-0.2=11

x=11.2

Answer:

5.6

Step-by-step explanation:

We want to find the value of x, which is part of the segment that includes the length 10.

We need to use Power of Points, one property of which essentially says that if we have two intersecting chords such that they are each cut into two parts to make a and b, and c and d, then ab = cd (see attachment).

Here, we can say that a = 10, b = x, c = 7, and d = 8. Plug these in:

ab = cd

10 * x = 7 * 8

10x = 56

x = 56/10 = 5.6

The answer is 5.6.

Each diagonal has two parts (a, b, c, and d).

The formula is ab = cd

We have the values:

a = 10

b = x

c = 8

d = 7

Put these in the formula:

10x = (8)(7)

Solve for x.

10x = (8)(7)

10x = 56

10x/10 = 56/10

x = 5.6

Therefore, the answer is x = 5.6

Best of Luck!

Answer:

[tex]2\frac{4}{10}=\frac{24}{10}=\frac{12}{5}[/tex]

Step-by-step explanation:

Here we have a number in the ones place, 2, and a number in the tenths place, 4.

Here our whole number is 2, the numerator is 4, and it is in the tenths place, so our denominator will be 10

Our fraction becomes [tex]2\frac{4}{10}[/tex] which then turns into the improper fraction [tex]\frac{24}{10}[/tex] and then simplifying if needed becomes [tex]\frac{12}{5}[/tex] after dividing the fraction by 2

Answer:

1.05 radians

Step-by-step explanation:

Given that Vanessa is skiing along a circular ski trail that has a radius of 2.5 km. She starts at the 3-o'clock position and travels in the Counter Clockwise direction.

She stops skiing when she is 1.244 km to the right and 2.169 km above the center of the ski trail.

This can be represented as (1.244, 2.169) on a circle of radius 2.5 km.

From the coordinate point (1.244, 2.169) derived, x=1.244 and y=2.169.

By the definition of tangent,

[tex]\tan \theta =\frac{y}{x} \\\\\tan \theta =\dfrac{2.169}{1.244}\\\\ \theta=\arctan \dfrac{2.169}{1.244}\\\\\\ \theta=1.05006[/tex]

Vanessa swept out approximately 1.05 radians since she started skiing.

Answer:

I think it's 3+(-1) sorry if it's wong.

Step-by-step explanation:

Answer:

A or C

Step-by-step explanation:

[tex]\dfrac{y+1}{y+2}+\dfrac{y+8}{y+9}=\dfrac{y+2}{y+3}+\dfrac{y+7}{y+8}[/tex]

Write all fractions in terms of a common denominator:

[tex]\dfrac{y+1}{y+2}=\dfrac{(y+1)(y+9)(y+3)(y+8)}{(y+2)(y+9)(y+3)(y+8)}[/tex]

[tex]\dfrac{y+8}{y+9}=\dfrac{(y+8)^2(y+2)(y+3)}{(y+2)(y+9)(y+3)(y+8)}[/tex]

[tex]\dfrac{y+2}{y+3}=\dfrac{(y+2)^2(y+9)(y+8)}{(y+2)(y+9)(y+3)(y+8)}[/tex]

[tex]\dfrac{y+7}{y+8}=\dfrac{(y+7)(y+2)(y+9)(y+3)}{(y+2)(y+9)(y+3)(y+8)}[/tex]

Then move all fractions to one side and simplify the numerator:

[tex]\dfrac{(y+1)(y+9)(y+3)(y+8)+(y+8)^2(y+2)(y+3)-(y+2)^2(y+9)(y+8)-(y+7)(y+2)(y+9)(y+3)}{(y+2)(y+9)(y+3)(y+8)}=0[/tex]

The numerator dictates when the fraction reduces to 0. The denominator can never be 0, so we know that y cannot take any of the values -2, -9, -3, nor -8.

So the equation reduces to

[tex](y+1)(y+9)(y+3)(y+8)+(y+8)^2(y+2)(y+3)-(y+2)^2(y+9)(y+8)-(y+7)(y+2)(y+9)(y+3)=0[/tex]

Expand the left side; you would end up with

[tex]-6(2y+11)=0[/tex]

[tex]2y+11=0[/tex]

[tex]2y=-11[/tex]

[tex]\implies\boxed{y=-\dfrac{11}2}[/tex]

hey!!!

Here's your answer;

The word trigonometry is derived from two Greek words trigon and metron. Trigono means triangle and metron means measurement. Therefore in literal terms trigonometry is the measurement of the angles of a triangle. The application of trigonometry is very vast.It is used in measuring eight and distance, surveys,Map making, astronomy, engineering etc.

The longest side,which is the opposite side of right angle is the hypotenuse.There are two other side's,the opposite and the adjacent.The naming of these sides depends upon which angle is involved.The opposite is the side opposite the angle involved and it is called the perpendicular.

The adjacent is the side next to the angle involved(but not the hypotenuse) and it is called base.

Answer:

Step-by-step explanation:

The question is incomplete. The missing part is:

(A) We can use the geometric distribution with n = 100, k = 10, and p = 0.24 to calculate this probability. (B) We can use the binomial distribution with n = 10, k = 100, and p = 0.24 to calculate this probability. (C) We cannot calculate this probability using the binomial distribution since whether or not one flight is delayed is not independent of another. (D) We can use the binomial distribution with n = 100, k = 10, and p = 0.24 to calculate this probability

Solution:

In binomial probability, the assumption is that there is only one outcome for each trial. This is because the probability of success or failure is constant. Each trial is also independent of the other trial. This means that the probability of event A happening does not depend on the outcome of event B.

In the given scenario, the probability of a flight being delayed depends on the probability of the previous flight being delayed. It means that the outcomes are not independent. In geometric probability, a trial is repeated until success is achieved. The outcomes are also independent. Therefore, the correct option is

(C) We cannot calculate this probability using the binomial distribution since whether or not one flight is delayed is not independent of another.

The statement that is correct would be:

C). We cannot calculate this probability using the binomial distribution since whether or not one flight is delayed is not independent of another.

In the case of binomial probability, it is assumed that the outcome occurring for every trial would remain 1 only because there is consistency in terms of success or defeat.

This implies that the outcome of one will not impact the other's result.

Since the third statement shows that there is no possibility of estimating the probability by employing the method of binomial distribution as one flight's taking off or delay will not impact the other and they remain independent.

Thus, option C is the correct answer.

Learn more about "Probability" here:

brainly.com/question/795909

The options are missing in the question. They are provided as follows:

(A) We can use the geometric distribution with n = 100, k = 10, and p = 0.24 to calculate this probability.

(B) We can use the binomial distribution with n = 10, k = 100, and p = 0.24 to calculate this probability.

(C) We cannot calculate this probability using the binomial distribution since whether or not one flight is delayed is not independent of another. (D) We can use the binomial distribution with n = 100, k = 10, and p = 0.24 to calculate this probability

Answer: (BRAINLIEST PLEASE)

120 g.

Step-by-step explanation:

Answer:

1/4 of a pound

Step-by-step explanation: