Oscar spent a weekend in Puerto Rico. He took 20 pictures of the rain forest, 20 pictures at the beach, and 20 pictures of a fort. Which multiplication expression shows how many pictures he took? Which addition expression shows how many pictures he took? How many total pictures did Oscar take?

Answer: A, 0.68

Step-by-step-explanation:

25 x 4 = 100

17 x 4 = 68

Answer:

the correct option is c i.e o.75 thank me and mark brainliest

Step-by-step explanation:

pls

Answer:

122m^2

Step-by-step explanation:

Awnser is in picture along with steps

The simplified frame of the expression \(3 \times \frac{7 {}^{2} }{3} \times \frac{8}{3} \times 7- \frac{1}{4} \) is 6511.5.

To disentangle the given expression, we got to apply the arrange of operations (PEMDAS) and streamline the terms utilizing the example and division rules.

PEMDAS stands for Enclosures, Exponents, Multiplication and Division, and Expansion and Subtraction. We ought to perform the operations in this arrange to streamline the expression.

We rearrange the type: \(7^2 = 49\)

We rearrange the division 8/3 by partitioning the numerator by the denominator: \( \frac{8}{3} = 2 \frac{2}{3} \)

We disentangle the division 7-1/4 utilizing the run the show that a negative example is comparable to the corresponding of the base raised to the positive type: 7-1/4 = 1/74.

To revamp the expression with the rearranged values:  \(3 \times 49 / (2 \frac{2}{3} \times 1/74)\)

To partition divisions, we increase by the corresponding of the second division:  \(3 \times 49 \times 74 / (2 \frac{2}{3} )\)

We have to be rearrange the blended number  \(2 \frac{2}{3} \) by increasing the total number by the denominator and including the numerator: \(2 \frac{2}{3} = \frac{8}{3} \)

We will disentangle the expression by canceling out common variables:

3 x 49 x 74 / (8/3) = 6511.5

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Answer:

x=1

Step-by-step explanation:

given

21=14+7x

our objective is to get the variable (x) by itself

To do so we use inverse operations

so to get rid of the 14 we subtract 14 but whatever you do to one side you have to do to the other so we subtract each side by 14

14-14 cancels out

21-14=7

now we have

7x=7

now we want to get rid of the 7

to do so we divide by 7 but remember whatever we do to one side we have to do to the other side so we divide each side by 7

7/7 cancels out

7/7=1

we're left with x=1

hope this helps!

The volume of the prism is 30. 96 m³

The formula for calculating the volume of a triangular prism is expressed with the equation;

V = Bl

Such the parameters are enumerated as;

To determine the base area, we have that;

Base area = 1/2 × bh

Substitute the values

Base area = 1/2 × 4 × 1.8 = 3. 6 m²

Then, we have;

Volume = 3. 6 × 8. 6

Multiply the values

Volume = 30. 96 m³

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A couple would probably budget for the wedding if they make $70,000 together, you can use the regression equation obtained from the analysis. The regression equation will provide you with the relationship between the couple's income and the wedding cost.

The excel regression tool using the cost as the dependent variable and the couple's income as the independent variable, only those weddings paid for by the bride and groom. A. Interpret all key regression results, hypothesis tests, and confidence intervals in the output. B. Analyze the residuals to determine if the assumptions underlying the regression analysis are valid. C. Use the standard residuals to determine if any possible outliers exist. D. If a couple makes $70,000 together, how much would they probably budget for the wedding?

Weddings Couple's Income Bride's age Payor Wedding cost Attendance Value Rating

$130,000 22 Bride's Parents $60,700. 00 300 3

$157,000 23 Bride's Parents $52,000. 00 350 1

$98,000 27 Bride & Groom $47,000. 00 150 3

$72,000 29 Bride & Groom $42,000. 00 200 5

$86,000 25 Bride's Parents $34,000. 00 250 3

$90,000 28 Bride & Groom $30,500. 00 150 3

$43,000 19 Bride & Groom $30,000. 00 250 3

$100,000 30 Bride & Groom $30,000. 00 300 3

$65,000 24 Bride's Parents $28,000. 00 250 3

$78,000 35 Bride & Groom $26,000. 00 200 5

$73,000 25 Bride's Parents $25,000. 00 150 5

$75,000 27 Bride & Groom $24,000. 00 200 5

$64,000 25 Bride's Parents $24,000. 00 200 1

$67,000 27 Groom's Parents $22,000. 00 200 5

$75,000 25 Bride's Parents $20,000. 00 200 5

$67,000 30 Bride's Parents $20,000. 00 200 5

$62,000 21 Groom's Parents $20,000. 00 100 1

$75,000 19 Bride's Parents $19,000. 00 150 3

$52,000 23 Bride's Parents $19,000. 00 200 1

$64,000 22 Bride's Parents $18,000. 00 150 1

$55,000 28 Bride's Parents $16,000. 00 100 5

$53,000 31 Bride & Groom $14,000. 00 100 1

$62,000 24 Bride's Parents $13,000. 00 150 1

$40,000 26 Bride's Parents $7,000. 00 50 3

$45,000 32 Bride & Groom $5,000. 00 50 5

Multiple R: The multiple correlation coefficient is 0.819, which indicates a strong positive relationship between couple's income and wedding cost.

R Square: The coefficient of determination is 0.671, which means that approximately 67% of the variation in wedding cost can be explained by couple's income.

Adjusted R Square: The adjusted R square is 0.650, which takes into account the number of independent variables in the model and is slightly lower than the R square.

Standard Error: The standard error of the estimate is 10,101.431, which represents the average deviation of the observed values from the predicted values.

The intercept coefficient is 24525.824, which represents the estimated wedding cost when the couple's income is zero. The coefficient for couple's income is 0.397, indicating that a one-unit increase in couple's income is associated with a $397 increase in wedding cost.

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To simplify the expression .cos (2 tan^-1 x), we use the identity cos(2tan^-1x)=2cos^2(tan^-1x)-1.

Thus, the expression simplifies to 2cos^2(tan^-1x)-1.

The derivative of the function y=(tan^-1 7x)^2 is given by d/dx (tan^-1 7x)^2=2(tan^-1 7x)*7/1+(7x)^2.

Simplifying the derivative, we get d/dx (tan^-1 7x)^2=14tan^-1 7x/(1+49x^2).

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Answer:

ur bad kid

Step-by-step explanation:

drop out of school

Answer:

21x + 14y = 6 13

Step-by-step explanation:

Answer:

1)

1 /6 × 1/8

1/6×8

1/48

2)

3/6 ×1/8

2×1/8

1/4

3)

3/6 ×1/8

2×1/8

1/4

4)

3/6×4/8

2÷2

1

The slope of the line is zero.

The increase divided by the run, or the ratio of the rise to the run, is known as the line's slope or gradient. In the coordinate plane, it represents the slope of the line.

From the given figure we can see that the line is parallel to the x-axis.

Any line parallel to the x-axis is given by the general equation y = a .

This equation can also be written as:

y = 0 x + a.

Comparing the above equation with the general equation of a straight line  y = mx + c

we see m = 0 and c = a (a is a constant)

Hence the slope of the line is 0.

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Answer: C

Step-by-step explanation: The slope of Function A is 6 and the slope of Function B is 5.

Answer:

x-int: (3, 0)

y-int: (0, 2)

Step-by-step explanation:

The x-int is found when y = 0. Set y to 0 to solve for the x-int.

The y-int is found when x = 0. Set x equal to 0 to solve for the y-int.

Answer:

57 is a rational number.

Step-by-step explanation:

Rational number is a number that can be represented as the quotient p/q of two integers such that q ≠ 0.

An irrational number is a type of real number which cannot be represented as a simple fraction.

In this example, 57 can be represented as a fraction.

It can be written as \(\frac{57}{1}\).

Hence, proved.

Hope this helps.

Answer:

b + c all over a = x

Step-by-step explanation:

Answer:

X= b+c/a

Step-by-step explanation:

The circumference is 160 feet for a length of 40 feet. The perimeter is 200 feet for a length of 50 feet. The circumference is 240 feet for a length of 60 feet.

A rectangular region with a 1200 square foot area will have a different perimeter depending on how long it is. The perimeter will be 160 feet if the area is 40 feet long. The length of 40 feet is multiplied by four to get a final measurement of 160 feet. In a similar manner, if the area is 50 feet long, the perimeter will be 200 feet.

The length of 50 feet is multiplied by four to get a final result of 200 feet. Finally, the perimeter will be 240 feet if the area is 60 feet long. The length of 60 feet is multiplied by four to get a final measurement of 240 feet. A rectangular region with an area of 1200 square feet will therefore have a different perimeter depending on its length, with a length of 40 feet resulting in a perimeter of 160 feet, a length of 50 feet resulting in a perimeter of 200 feet, and a length of 60 feet resulting in a perimeter of 240 feet.

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Answer:

a: 24 cm

b: 101 m

c: 1.46 mm

Step-by-step explanation:

Formula: d=2r

a: 12*2=24 cm

b: 50.5*2=101 m

c: 0.73*2=1.46 mm

The value of the function (f - g)(x) would be \((f-g)(x)=x^2-11x+4\).

Option (A) is correct.

What are composite functions?

A composite function is generally a function that is written inside another function. The composition of a function is done by substituting one function into another function. For example, f [g (x)] is the composite function of f (x) and g (x). The composite function f [g (x)] is read as “f of g of x”.'

Given:

                \(f(x)=4x^2-5x\\\\g(x)=3x^2+6x-4\)

Now by using the definition of composite functions we can write,

      \((f-g)(x)=f(x)-g(x)\\\\(f-g)(x)=4x^2-5x-(3x^2+6x-4)\\\\(f-g)(x)=4x^2-5x-3x^2-6x+4\\\\(f-g)(x)=x^2-11x+4\)

Hence, the value of the function (f - g)(x) would be \((f-g)(x)=x^2-11x+4\).

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The values of the missing sides are;

a.  x = 35. 6 degrees

b. x = 15

c. x = 22. 7 ft

d. x = 31. 7 degrees

To determine the values, we have;

a. Using the tangent identity;

tan x = 5/7

Divide the values

tan x = 0. 7143

x = 35. 6 degrees

b. Using the Pythagorean theorem

x² = 9² + 12²

find the square

x² = 225

x = 15

c. Using the sine identity

sin 29= 11/x

cross multiply the values

x = 11/0. 4848

x = 22. 7 ft

d. sin x = 3.1/5.9

sin x = 0. 5254

x = 31. 7 degrees

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The first three terms of the given sequence are -17, -27 and -37

A sequence is an ordered list of objects. Like a set, it contains elements. The number of ordered elements (possibly infinite) is called the length of the sequence.

Given that, an arithmetic sequence formula an = -10n - 7

We are asked to find the first three terms of this sequence.

Therefore,

Put n = 1 for first term,

a₁ = -10(1)-7

a₁ = -17

Put n = 2 for second term,

a₂ = -10(2)-7

a₂ = -27

Put n = 3 for third term,

a₃ = -10(3)-7

a₃ = -37

Hence, the first three terms are -17, -27 and -37

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Answer:

Step-by-step explanation:

Given the dimension

Length of the rectangle = 8cm

Width = 5cm

Note that when the scale was 1:7, syla multiplied the width by a factor of 7 i.e 5*7 = 35m

If syla changes the the scale to 1 cm : 10 m for the rectangle, then the width of the shorter side will be multiplied by a factor of 10 due to the change in scale i.e;

5 * 10 = 50m

Hence the width of the new stage will be 50 m

Answer:

50m

Step-by-step explanation:

took the quiz on edg

The contrast coefficients would be as follows:

The farmers are interested in whether there is any difference between the low-low combination (it is the cheapest) and the average of the remaining three levels. The hypotheses they want to test are:

To test this hypothesis, the following contrast would be used:

To compare the high- to low-nitrogen content fertilizers, the following contrast would be used:

To compare the high- to low-phosphorus content fertilizers, the following contrast would be used:

To compare the ll combination to the hh combination, the following contrast would be used:

For each of the contrasts above, the contrast coefficients would be as follows:

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Answer:

Step-by-step explanation:

Answer: 1

Step-by-step explanation: 1.27 is 27 hundredths from 1, but 73 hundredths from 2. Therefore it's nearest whole number is 1.00 = 1.

180- 64 =116

x°+18°+116°= 180°

x°+134°=180°

x°=180-134

x°=46°

Answer:

x is 46°

Step-by-step explanation:

subtract 64 from 180 so 180-64.

that gets you 116

add 18 to 116 so 116+18

that is 134

subtract 134 from 180 so 180-134

and then you get 46

Answer:

the slope is b: -1/2

rise/run is an easy way to do it. Count the number of x-units between points and the number of y-units. in this case its 6 x-units and 3 y-units. y is rise and x is run, so it'll be 3/6 or 1/2 and it's negative because it's decreasing left to right.

For size scoop would we use to serve the potato salad and not run out(B) not enough information to calculate

To determine the size scoop to use for serving potato salad without running out, we need to have information about the number of servings required or the total amount of potato salad needed. Without this information, it is not possible to calculate the size of the scoop accurately.

However, if we assume that each serving of potato salad is a fixed amount, we can make an estimation. Let's say we want to serve N servings of potato salad. If the current recipe yields 12 pounds, we can divide the total amount by the number of servings:

12 pounds / N servings = weight per serving

Once we have the weight per serving, we can estimate the size scoop to use based on common scoop sizes.

These sizes refer to the number of scoops per quart. If you know the volume of each scoop size (in quarts), you can estimate the number of scoops needed to reach the desired number of servings. However, without specific information about the serving size or the total amount needed, it is not possible to determine the appropriate scoop size accurately.

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Answer:

14

Step-by-step explanation:

$25.00 - $4.00 = $21.00

$21.00 / $1.50 = 14

Answer:

14 ride tickets

Step-by-step explanation:

He has $25, and spends $4. So 25 - 4 = 21. Each ride ticket is $1.50. So 21 ÷ 1.50 = 14

The probability that the sample proportion is between 0.2 and 0.42 can be calculated using the standard normal distribution.

To calculate the probability, we need to assume that the sample proportion follows a normal distribution. This assumption holds true when the sample size is sufficiently large and the conditions for the central limit theorem are met.

First, we need to calculate the standard error of the sample proportion. The standard error is the standard deviation of the sampling distribution of the sample proportion and is given by the formula sqrt(p(1-p)/n), where p is the estimated proportion and n is the sample size.

Next, we convert the sample proportion range into z-scores using the formula z = (x - p) / SE, where x is the given proportion and SE is the standard error. In this case, we use z-scores of 0.2 and 0.42.

Once we have the z-scores, we can use a standard normal distribution table or a statistical software to find the corresponding probabilities. The probability of the sample proportion falling between 0.2 and 0.42 is equal to the difference between the two calculated probabilities.

Alternatively, we can use the z-table to find the individual probabilities and subtract them. The z-table provides the cumulative probabilities up to a certain z-score. By subtracting the lower probability from the higher probability, we can find the desired probability.

In conclusion, the probability that the sample proportion is between 0.2 and 0.42 can be calculated using the standard normal distribution and z-scores. This probability represents the likelihood of observing a sample proportion within the specified range.

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Decimal form is 3.96811878