4c-2d÷c elvauate for c= 2 and d=5. Enter your numerical number

Answer:

The height of the squirrel is 31 feet.

Step-by-step explanation:

You need to know your Right Triangle Trigonometry to do this problem.

Rt Triangle trig is all about ratios. Angles and ratios.

In your question, there is a rt triangle. The side measure given, 28 is next to the angle. The math word for "next to" is "adjacent" You know the adjacent side. The squirrel's height is the opposite side. The ratio that puts together adjacent and opposite is tangent.

tan Angle = opposite/adjacent

tan 48° = x/28

multiply both sides by 28

28•tan48° = x



You have to use a calculator that has trig functions. It will have buttons that say "sin", "cos", and "tan"



Enter 28 × tan48° =

It will return 31.0971504152

Your question asks you to round to the nearest whole.

x = 31

The squirrel's height in the tree is 31ft.

Answer:

Step-by-step explanation:

1.11

The expected value for the number of siblings of a randomly chosen student is 1.11.

The correct answer is C. 1.11.

To calculate the expected value for the number of siblings of a randomly chosen student, we need to multiply each possible number of siblings by its corresponding probability and sum up the results.

Expected Value = (0 x 0.18) + (1 x 0.65) + (2 x 0.09) + (3 x 0.05) + (4 x 0.02) + (5 x 0.01)

Expected Value = 0 + 0.65 + 0.18 + 0.15 + 0.08 + 0.05

Expected Value = 1.11

Therefore, the expected value for the number of siblings of a randomly chosen student is 1.11.

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Answer:

lol, that is true she should stop drinking too much water.

But all jokes aside, the answer is A. At least one day she drank exactly 6 cups of water.

Answer:

54<48

Step-by-step explanation:

If you add 45+3, you get 45.

Hope this helped.

Answer:

A. The teacher conducted an observational study by comparing the performance on the test of those who completed their review worksheets to those who did not complete their review worksheets.

The statement that best describes the method how the teacher likely came to the specified conclusion is: Option A. The teacher conducted an observational study by comparing the performance on the test of those who completed their review worksheets to those who did not complete their review worksheets.

In the case of testing about test scores, teacher can't use random or controlled experiment as the teacher would more likely work with real data of test scores instead of students faking it.

The sample survey is not needed as getting test scores doesn't destroy them, nor the population of students is too high(assuming math class has small number of students (usually under some hundreds) ).

Observational study is best choice here, and this is done on all students by observing how much students achieved in scored in test and relate it with them completing the review worksheets or not.

Thus, the statement that best describes the method how the teacher likely came to the specified conclusion is: Option A. The teacher conducted an observational study by comparing the performance on the test of those who completed their review worksheets to those who did not complete their review worksheets.

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Answer:

Step-by-step explanation:

In a rhombus, all sides are equal in length. Let's denote the length of each side by s. We can use the Pythagorean theorem to relate the diagonals and the sides of the rhombus. If d is the length of the shorter diagonal, then the length of the longer diagonal is 2d. The Pythagorean theorem gives us:

(s/2)^2 + d^2 = s^2

and

(s/2)^2 + (2d)^2 = s^2

Simplifying and solving for s, we get:

s = √(4d^2 - d^2) = √3d

The perimeter of the rhombus is the sum of the four sides, so we have:

perimeter = 4s = 4√3d

Therefore, the expression that represents the perimeter of the rhombus in terms of the length of the shorter diagonal (d) is 4√3d.

Answer:

The perimeter of a rhombus is given by 4 times the length of one of its sides.

Use the Pythagorean theorem to relate the two diagonals of the rhombus:

The length of the longer diagonal (D) is related to the length of the shorter diagonal (d) as follows:

D^2 = d^2 + d^2 = 2d^2

We also know that the length of the longer diagonal is twice the length of the shorter diagonal:

D = 2d

Substituting the second equation into the first, we get:

(2d)^2 = 2d^2

4d^2 = 2d^2

2d^2 = 4d^2/2

d^2 = 2d^2/4

d^2 = d^2/2

Multiplying both sides by 2:

2d^2 = d^2

d^2 = 2d^2

Taking the square root of both sides:

d = sqrt(2)d

So the length of the shorter diagonal is d and the length of the longer diagonal is 2d.

The perimeter of the rhombus is:

P = 4s

where s is the length of one of the sides of the rhombus. We can express s in terms of d using the Pythagorean theorem:

s^2 = (d/2)^2 + d^2

s^2 = d^2/4 + d^2

s^2 = 5d^2/4

s = sqrt(5)d/2

Substituting this expression for s into the formula for the perimeter, we get:

P = 4s = 4(sqrt(5)d/2) = 2sqrt(5)d

Answer:

We need a more zoomed out pic

Step-by-step explanation:

Answer:

x=16/5

Step-by-step explanation:

7-4=5x-13

3=5x-13

+13.  +13

16=5x

16/5 = x

If Felix were to have $100 and writes a check for $150 wouldn't that mean that he has insufficient funds? He has $100 if he writes a check to someone he would not have any money left. He would have -$50.

Alina has $40 when she leaves and she comes back with $40, the question states that there is a change but there is none. She left and came back with the same exact amount of money. Nothing changed.

If Lucas has no money, does some chores, and earns $5, then he would have $5. You didn't complete the question so I will not answer any further.

To determine the gain or loss on the redemption of the bonds, you need to compare the redemption price to the carrying value of the bonds. The carrying value of the bonds is the amount that the bonds are recorded as being worth on the issuing corporation's balance sheet. This is calculated by adding the Bonds Payable balance and the Premium on Bonds Payable balance.

In this case, the carrying value of the bonds is $810,000 + $8,910 = $818,910. If the bonds are redeemed at a price of $102, the gain or loss on the redemption can be calculated as follows:

Gain or loss on redemption = Redemption price - Carrying value of bonds

= $102 - $818,910

= -$817,810

Since the gain or loss on the redemption is a negative number, this indicates that the redemption price was lower than the carrying value of the bonds, resulting in a loss. The correct answer is therefore: c. $7,290 loss.

Answer:   x-intercepts = (6,0)      y-intercepts = (0,-3)

Step-by-step explanation: The answer shown is accurate. Hope it helps.

Answer:

Step-by-step explanation:

Answer:

Area = 7

Perimeter = 21 m

Step-by-step explanation:

Remark

The perimeter is just the sum of the three sides of the triangle.

The Area is the base * height /2

Givens

Perimeter: Three sides: 5 + 7 + 9

height: 2 meters

Formula

Area = 1/2 Base * Height

Area = 1/2 7 * 2

Note:

Just so you  know the height should be almost 5. 2 is an impossible amount for the height.

Area = 1/2 *  7 * 2

Area = 7 m^2

Perimeter = 5 + 7 + 9

Perimeter = 21

Answer:

y=6x+8

Step-by-step explanation:

y=mx+b

-4=6(-2)+b

-4=-12+b

8=b

Answer:

x = -11

Step-by-step explanation:

7 - x = 18

+ x on both sides to cancel the negative one

7 = 18 + x

- 18 on both sides to get rid of the 18

solve:

7 - 18 = x

-11 = x

Answer:

collecting like terms

Step-by-step explanation:

step 1. Shift 7 to the right side

-x = 18 - 7

-x = 11

step 2. divide by -1 both sides

-x/-1 = 11/-1

x = -11

Answer:

What do we have to do in this? Find x? Let me know I'll explain it in the comment section

Answer:

Below

Step-by-step explanation:

Let A be the total area

● A = a^2

a is the side of the square board game

● 146 = a^2

● a = √146

● a = 12 after rounding to the nearest inch

Answer:

b

Step-by-step explanation:

grocery

2.80÷8=0.35

0.35×16=5.6

farmers

4.20÷14=0.3

0.3×16=4.8

5.6-4.8=0.8

Answer:

Step-by-step explanation:

Terms are any numbers or variables that represent numbers. In other words, 2, 8, c, d, and b are all the terms of this expression.

Answer:

y = ⅓(x - 1425)

Step-by-step explanation:

Given

Budget = x

Mortgage = 1425

Required

Determine the amount spent on recreational activities.

First, we need to get the balance after she pays her mortgage.

Balance = Budget - Mortgage

Balance = x - 1425

From the question, we understand that she spends ⅓ of the balance on recreational activities.

Represent this with y.

y is calculated as thus:

y = ⅓ of Balance

y = ⅓ * (x - 1425)

y = ⅓(x - 1425)

Hence, the above equation y = ⅓(x - 1425) can be used to calculate the amount spent on recreational activities

we know that

If there is no correlation between x and y, that just means that there's no relationship, connection, or interdependence between the two variables

No correlation means that as the x-values increase, the y-values have no effect

the answer is the option A

Answer:

\(\frac{28}{45} .\)

Step-by-step explanation:

way_1:

according to the condition the probability for the 1st computer is 8/10=4/5;

for the 2d computer is 7/9. Then the final probability is P=4/5 * 7/9=28/45;

way_2:

the required probability can be calculated according the formula:

\(P=\frac{no-cases}{total-cases};\)

then

\(P=\frac{C^2_8}{C^2_{10}} =\frac{2!8!8!}{2!6!10!}=\frac{28}{45} .\)

Using the normal probability distribution, it is found that P(X = 8) is equal to zero.

In a normal distribution with mean  and standard deviation, the z-score of a measure X is given by:

                                   \(Z = \frac{X-mean }{S.D.}\)

Hence, from the last bullet point, it is found that P(X = 8) is equal to zero.

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The standard deviation is 1.0319

x values between 10.4681 and 12.5319 are respectively ( 11 , 12 )

The probability that the number of granite specimens selected for analysis is within 1 standard deviation of its mean value is 0.6740

We are given that: a geologist has collected 14 specimens of basaltic rock and 14 specimens of granite.

Thus total rocks = N = 14 +14 = 28

The geologist instructs a laboratory assistant to randomly select 23 of the specimens for analysis.

Thus sample size = n = 23

Part a) What is the pmf of the number of granite specimens selected for analysis?

x = the number of granite specimens selected

Thus M = Number of granite specimens = 14

Thus x can have the following values:

x n-x = 23-x

9 14

10 13

11 12

12 11

13 10

14 9

We can select a minimum 9 granite specimens, so that total becomes 9 granite specimens + 14 basaltic rock = 23

and maximum 14 granite specimens, so that total becomes 14 granite specimens + 9 basaltic rock = 23

Here x = the number of granite specimens selected follows Hypergeometric distribution with parameters N = 28 ,M=14 , n = 23 .

P(X=9) =0.02037

Similarly, we find all next probabilities:

x P(x)

9 0.0204

10 0.1426

11 0.3370

12 0.3370

13 0.1426

14 0.0204

Part b) What is the probability that all specimens of one of the two types of rock are selected for analysis?

the probability that all specimens of one of the two types of rock are selected

That is:

P( All 14 are granite specimens and rest 9 are basaltic rock OR All 14 are basaltic rock and rest 9 are granite specimens)=......?

That is:

P( 14 granite specimens , 9 basaltic rock OR 14 basaltic rock , 9 granite specimens) =......?

From above table in part a) , we have:

P( 14 granite specimens) = 0.0204 , that means

P(14 granite specimens , 9 basaltic rock) = 0.0204

and

P( 9 granite specimens)=0.0204

That is:

P( 14 basaltic rock , 9 granite specimens) = 0.0204

Thus

P( 14 granite specimens , 9 basaltic rock OR 14 basaltic rock , 9 granite specimens) =0.0204 + 0.0204

P( 14 granite specimens , 9 basaltic rock OR 14 basaltic rock , 9 granite specimens) = 0.0408

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Answer:

sim eu também preciso desta respota

The fraction which is closest to 1/2 is, 3/8. So option B is correct

Fraction is a mathematical term, which represents the portion or sub-parts of the whole thing. Basically, It has two parts: numerator and denominator.

Numerator is a number which lies on the top side, it indicates the number of equal parts taken and denominator is on the bottom side, it indicates the equal parts of the whole number.

Given that,

A fraction number 1/2

In decimal form = 0.5

Closest fraction number = ?

Most closest number is that number from which we subtract the given number and the magnitude of result we get is very less,

Lets take, A fraction 1/6

In decimal form it can written as,  0.167

Difference 1 =  0.5 - 0.167

                  =   0.333

Similarly, For numbers 3/8, 3/4, -1/2

Difference 2 =  0.5 - 0.375  = 0.125

Difference 3 =  0.5 - 0.75  = -0.25

Difference 4 =  0.5 - (-0.5)  =  1.0

It can be seen that,

Magnitude of difference in case of 3/8 is very less

Hence, the closest number is 3/8

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Answer:

None of the option is correct.

The right answer is 18/7 or 2.57

Step-by-step explanation:

Answer:

Flaming Hoop Jump of Awesome

Roslyn Bertley

Q : A) What are the key aspects of any parabola? What do the key aspects tell you about the graph?

A : It goes up to its max point and comes down. The max point is 32 and how far it went was from 15 to 35

Q : A) What are the key aspects of Daredevil Danny’s practice jump shown in the graph provided? Describe each value and how it is determined.

A : Its a standard form graph , and Danny needs to figure out the speed he is ganna go and the its angle

Step 2: Solve for coefficient a.

Q : A) What equation is used to find the vertex form of a parabola with the vertex (h, k)?

A : F(x)=ax2+bx+c

Q : b) Solve for the coefficient a in the vertex form for the parabola in Daredevil Danny’s practice jump using key aspects from step 1. As you solve for the coefficient, explain each step of the process in detail.

A : The picture lets us know that the equation of a vertical parabola in vertex form is given by wher A is the leading coefficient. (h,k) is the vertex. looking at the graph we have a vertical paraboola opening downward . The vertex is a maximum The vertex is the point (25.32) substitute in the equation

Q : c) What is the vertex form of the parabola from Daredevil Danny’s practice jump?

f(x)=-12/25(x-25)^2+32

Step 3: Change from vertex form to standard form.

Q : a) What is the equation for a parabola in standard form?

A : y = ax^2 + bx + ct

b) Convert the vertex form of the equation you wrote above to standard form.

f(x)= -0.48xˆ2+24x-268

c) What are the values for coefficients a, b, and c in the quadratic equation for Daredevil Danny’s practice jump?

Step-by-step explanation:

that’s all i got

The equation to show the perimeter of the rectangle is P = 2(2w + 5)

From the question, we have the following parameters that can be used in our computation:

Length = 5 more than the width

Also, we have

Perimeter = 58

This means that

P = 2(w + 5 + w)

P = 2(2w + 5)

In (a), we have

P = 2(2w + 5)

This gives

2(2w + 5) = 58

So, we have

2w + 5 = 29

2w = 24

w = 12

Next, we have

l = 12 + 5

l = 17

Lastly, we have

Area = 17 * 12

Area = 204

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9514 1404 393

Answer:

  120

Step-by-step explanation:

The number of permutations of 5 things taken 4 at a time is 120.

__

There are 5 odd digits. You want to choose 4 of them, then arrange those 4 in all possible ways. There are 5·4·3·2 = 120 ways to do that.

120 4-digit codes can be formed using odd digits with no repetition.

Answer:

65

Step-by-step explanation:

The lines are parallell so m1 = m5, and m3=m8. 180-115 is 65