please please help with these two !!! i’ll give brainliest pls

Answer:

There are 15 quarters and 18 nickles

Step-by-step explanation:

The equations derived from this word problem are

5n + 25q = 465

and

3 + q = n

Fill (3 + q) into n in the first equation then solve. You get q = 15.

Then plug 15 into second equation (cause it's easier).

You get n = 18

Answer:

290

Step-by-step explanation:

30x2 + 20x4 + 50x3

Hope this helps. Please mark brainliest if you would. It would really help me out

Answer:

290

Step-by-step explanation:

30x2+4x20+3x50 multiply first and you get 60+80+150=290

Answer:

$150

Step-by-step explanation:

Erick has to pay $15 per month so for 5 months he will have to pay $75 because 15 times 5 is 75. So $75 for registration fee + $75 for 5 months to use the gym give us $150

Answer:

24

Step-by-step explanation:

There are 6 different types of rackets and 4 different types of balls.

To determine the number of different combinations

6 rackets * 4 balls

24 combinations

Answer:

24

Step-by-step explanation:

Answer:

a= 528 squared centimeters

Step-by-step explanation:

Area of trapezoid is A=[(a+b)/2]*h

Base 1 is 32 cm

height is 12

since the height is also same as the bottom part as told by the line, do 32+12+12 to get...

56 cm for base 2

Sooo put this to use

a=[(32+56)/2]*12

a=[(88)/2]*12

a=[44]*12

a=528 :)

Answer:

Area 528cm²

That's the answer to your question.

The equation of the line passing through the points (4, 10, 8) and (3, 5, 1) is y = 5x - 10. It represents a linear relationship between the independent variable x and the dependent variable y in three-dimensional space.

To find the equation of the line passing through the given points, we can use the point-slope form of the equation.

Let's denote the points as follows:

Point 1: (x₁, y₁, z₁) = (4, 10, 8)

Point 2: (x₂, y₂, z₂) = (3, 5, 1)

First, we need to find the slope of the line, which is given by:

m = (y₂ - y₁) / (x₂ - x₁)

Substituting the values of the points:

m = (5 - 10) / (3 - 4) = -5 / -1 = 5

Now, we can choose one of the points and use the point-slope form:

y - y₁ = m(x - x₁)

Let's use Point 1:

y - 10 = 5(x - 4)

Expanding the equation:

y - 10 = 5x - 20

Simplifying further:

y = 5x - 10

Therefore, the equation of the line passing through the given points is y = 5x - 10.

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The surface area of the toy box is; 712 square centimeters.

The surface area of a solid object is a measure of the total area that the surface of the object occupies.

Given that Alexander built a toy box in the shape of a rectangular prism with an open top.

The top and bottom faces have areas;

14 cm × 10 cm = 140 cm² each.

The front and back faces have areas ;

14 cm × 9 cm = 126 cm² each.

The left and right faces have areas;

10 cm × 9 cm = 90 cm² each.

Therefore, the total surface area is:

2(140 cm²) + 2(126 cm²) + 2(90 cm²)

= 280 cm² + 252 cm² + 180 cm² = 712 cm²

So, the surface area of the toy box is 712 square centimeters.

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1) Estimate value of the product of 2/3 and 0.55 is, 2/3.

2) The fraction part is, 55 / 100

3) The product of the two numbers is, 11/30

We have to given that,

Estimate the product of 2/3 and 0.55.

And, Convert the decimal 0.55 to a fraction.

And, The product of the two numbers.

Now,

Estimate the product of 2/3 and 0.55,

So, we can round 0.55 to the nearest whole number, which is 1.

Then, multiply 2/3 by 1 to get an estimate of the product.

so, The correct answer is 2/3.

Now, we can convert the decimal 0.55 to a fraction,

= 0.55

= 55/100

= 11/20

Thus,  The correct answer is, 55/100.

And,  the product of 2/3 and 0.55,

= 2/3 x 55/100

= 110/300

= 11/30.

Hence, The correct answer is, 110/300 or 11/30

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The measures of the angles are ∠1 = 127°, ∠2 = 53°, ∠3 = 127°, ∠4 = 37°, ∠5 = 53°, ∠6 = 90°, ∠7 = 37°, ∠8 = 143°, ∠9 = 37° and ∠10 = 143°

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

The transversal lines and the other lines

So, we have

∠1 = 180 - 53

Evaluate

∠1 = 127°

Also, we have

∠5 = 53°

By vertical angles, we have

∠2 = 53°

∠3 = 127°

Next, we have

∠4 = 127 - 90°

∠4 = 37°

Solving further, we have

∠6 = 90°

By corresponding angles, we have

∠7 = 37°

∠9 = 180 - 90 - 53°

∠9 = 37°

∠10 = 90 + 53°

∠10 = 143°

∠8 = 143°

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Answer:

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

Each coordinate of the midpoint is the average of endpoints:

Therefore M is (13, 14).

Answer:

y = 3/2x-12

Step-by-step explanation:

The slope-intercept form of a line is

y = mx+b  where m is the slope and b is the y-intercept

The slope is 3/2 and the y-intercept is -12.

y = 3/2x-12

Answer:

\(\sf y = \dfrac{3}{2}x - 12\)

Step-by-step explanation:

The equation of a linear function can be written in the form y = m x + c, where,

m → slope → 3/2

c → y-intercept → -12

we can substitute these values into the equation.

The slope, m, is 3/2, so the equation becomes:

y = (3/2)x + c

The y-intercept, c, is -12, so we can replace c with -12:

\(\sf y = \dfrac{3}{2}x - 12\)

Therefore, the equation of the line is y = (3/2)x - 12

Answer:

\(5.06 x 10^{-3}\)

Step-by-step explanation:

Move decimal 3 place to right.

Because the decimal was moved to right, the exponent is negative.

Among the following statements concerning confidence intervals, only statement B "An interval estimate is often preferred to a point estimate because an interval estimate provides more information" is true.

A. This statement is not true. A confidence interval is used to estimate a population parameter, not just a sample statistic. It takes into account both sample data and information about the population.

B. This statement is true. An interval estimate provides more information than a point estimate because it provides a range of plausible values for the population parameter, along with an associated level of confidence. It conveys the uncertainty associated with the estimate.

C. This statement is not true. The condition for deriving a confidence interval for a population mean when the population variance is unknown and the sample size is small (<30) is not based on the population mean being normally distributed. Instead, it relies on the sample mean following an approximately normal distribution through the Central Limit Theorem.

Therefore, only statement B is true.

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Answer:

the answer is a

Step-by-step explanation:

because3 im smart unlike you

Answer:

400 feet

Step-by-step explanation:

real

1 feet = 12 inches

5 feet = 60 inches

scale

3 inches = 20 feet

60 inches=

60/3 = 20

20*20= 400

therefore 5 feet tall equall 400 feet

The actual length of the building will be 400 feet.

To multiply means to add a number to itself a particular number of times. Multiplication can be viewed as a process of repeated addition.

Given that;

The scale of the model is,

⇒ 3 inches = 20 feet

Now,

Since, The scale of the model is,

⇒ 3 inches = 20 feet

And, The model is 5 feet tall.

Since, 1 feet = 12 inches

So, 5 feet = 60 inches

Here, The scale of the model is,

⇒ 3 inches = 20 feet

So, The actual length of the building = 60 × 20/3

                                                         = 400 feet

Thus, The actual length of the building = 400 feet.

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Answer:

Obtuse triangle.

Step-by-step explanation:

A obtuse triangle has one angle that is larger than 90 degrees. There is a angle with 95 degrees.

The equation of the given sentence is

L = 2 l + 2 (w x h)

Where,

l = length of the base

w = wide of the base

h - height of the prism

A prism is a three-dimensional object.

There are triangular prism and rectangular prism.

We have,

Right rectangular prism.

The lateral area L of a right rectangular prism is equal to the sum of twice the length of the base and twice the width of the base w times the

height of the prism.

This can be written as,

L = 2 l + 2 (w x h)

Where,

l = length of the base

w = wide of the base

h - height of the prism

Thus,

The equation of the given sentence is

L = 2 l + 2 (w x h)

Where,

L = lateral area

l = length of the base

w = wide of the base

h - height of the prism

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We want to find "3/6" of 30.

First of all, let's reduce the fraction (3/6th).

Dividing top and bottom by 3, we have:

3/6

3/3 divided by 6/3

1 divided by 2

This is half.

So, we need half of 30. Which basically means:

Thus,

3/6 of 30

is

Answer:

RO = 17.9

Step-by-step explanation:

If they're similar, the fraction between their sides need to be equal, so do this:

NK/NM = RO/RQ

71.6/64 = RO/16

71.6•16/64 = RO

RO = 17.9

The recursive sequence that produces the sequence 4, -6, 4 is:

a(1) = 4

a(n+1) = -a(n) + 8, for n ≥ 1

In mathematics, a recursive sequence or function is one where each term or value is defined in terms of the previous one or ones. The term "recursive" comes from the word "recursion," which means to repeat or iterate.

A recursive sequence is often defined by a recursive formula or rule, which gives a formula for each term in terms of the previous ones. For example, the Fibonacci sequence is a b sequence where each term is the sum of the two previous terms.

To generate the sequence 4, -6, 4 using a recursive formula, we need to determine the pattern or rule that relates each term to the previous ones. We can see that the first and third terms are the same, and the second term is negative.

One possible recursive formula that generates this sequence is:

a(1) = 4

a(n+1) = -a(n) + 8, for n ≥ 1

Using this formula, we can find each term of the sequence by applying the rule to the previous term:

a(2) = -a(1) + 8 = -4 + 8 = 4

a(3) = -a(2) + 8 = -4 + 8 = 4

Therefore, the recursive sequence that produces the sequence 4, -6, 4 is:

a(1) = 4

a(n+1) = -a(n) + 8, for n ≥ 1

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The probability they choose all democrats is 0.01805

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

Republicans = 11

Democrats = 8

Number of selections = 4

If the selected people are all democrats, then we have

P = P(Democrats) * P(Democrats | Democrats) in 4 places

using the above as a guide, we have the following:

P = 8/19 * 7/18 * 6/17 * 5/16

Evaluate

P = 0.01805

Hence, the probability they choose all democrats is 0.01805

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Answer:

Hello, I solved it out for you and I did an example.

Step-by-step explanation:

To determine which of the coordinate points fall on a line with a constant of proportionality of 4, we need to check if the ratio of the y-coordinate to the x-coordinate is equal to 4.

Let's examine each coordinate point:

A) (1,4): The ratio of y-coordinate (4) to x-coordinate (1) is 4/1 = 4. This point satisfies the condition.

B) (2,8): The ratio of y-coordinate (8) to x-coordinate (2) is 8/2 = 4. This point satisfies the condition.

C) (2,6): The ratio of y-coordinate (6) to x-coordinate (2) is 6/2 = 3, not equal to 4. This point does not satisfy the condition.

D) (4,16): The ratio of y-coordinate (16) to x-coordinate (4) is 16/4 = 4. This point satisfies the condition.

E) (4,8): The ratio of y-coordinate (8) to x-coordinate (4) is 8/4 = 2, not equal to 4. This point does not satisfy the condition.

Therefore, the coordinate points that fall on a line with a constant of proportionality of 4 are:

A) (1,4)

B) (2,8)

D) (4,16)

So the correct answer is A, B, and D.

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