Help! Have no clue how to do. Will give Brainly thing if someone helps

Answer:

62 units

Step-by-step explanation:

A solid is composed of squares and equilateral triangles. Its net is shown below:

A triangular prism and its net are shown. The net is three squares with side length 4 units. Attached above and below the middle square are equal sized triangles.

The area of each triangle is 7 square units. The surface area of the triangular prism is _____ square units

surface area = area of squares x area of triangles

area of square = length²

4² = 16

there are 3 squares, total area = 16 x 3 = 48

there are 2 triangles = 2x 7 = 14

14 + 48 = 62

Answer:

y = 6 + x

Step-by-step explanation:

Membership fee = $6

Fee per visit = $1

Let

x = number of visits

y = Total cost

Total cost = fixed cost + variable cost

Fixed cost = Membership fee = $6

Variable cost = Fee per visit × number of visits

= $1 * x

= $x

Total cost = fixed cost + variable cost

y = $6 + $x

y = 6 + x

Answer:

Hello There!

~~~~~~~~~~~

(2x + y) (2x - y) =

\(4x^{2} - y^{2}\)

Step-by-step explanation: Simplify the expression.

Hope this helped you. Brainliest would be nice!

☆_____________❤︎______________☆

Answer:

Step-by-step explanation:

there is  formula (a+b)(a-b)=a^2-b^2

(2x+y)(2x-y)=(2x)^2-y^2=4x^2-y^2

Percentage decrease in original quantity to new quantity is - 40%.

A percentage is a number or ratio that can be expressed as a fraction of 100. If we have to calculate percent of a number, divide the number by the whole and multiply by 100, percentage means, a part per hundred. The word per cent means per 100

Given,

Original quantity = 5

New quantity = 3

Change in quantity = 3 - 5 = -2

Negative sign represents that it is decreased.

% decrease

= (change in quantity/original quantity)×100

=(-2/5)× 100

percent decrease = -40%

Hence, -40% is percentage decrease in the original quantity to new quantity.

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a. Pair 2 is selected.

b. Respiratory system, its function is to breathe. Digestive system, its function is to break down food into nutrients.

c. The two systems work together by sharing the region of the mouth and upper throat.

First picture in Pair 2 is Respiratory system, which its function is to breathe. Second picture in Pair 2 is Digestive system, which its function is to break down food into nutrients such as carbohydrates, fats and proteins. The respiratory system takes in oxygen from the air, and also gets rid of carbon dioxide. The digestive system absorbs water and nutrients from the food we consume.

The respiratory system is mainly used to transport air, whilst the digestive system is used to transport fluids and solids, from water and food we eat. The respiratory and the digestive systems share the area of the mouth and upper throat, in which air, fluids, and solids can be mixed.

The digestive system does homeostasis by ensuring that the stomach area has the right pH balance. The body uses both positive and negative mechanisms to perform homeostasis. If the body detects an imbalance, the other systems work together to counterbalance and restore the right equilibrium.

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Answer:

This is true

Step-by-step explanation:

Yes when you make a radical into a power you can simplify the power, like you are saying.

Answer:y=-1/4x-2

Step-by-step explanation:

Answer:

There is a 92°F difference between the two cities.

Step-by-step explanation:

Since you are finding the difference of temperatures between the two cities, you need to subtract -14 from 78. It looks like 78-(-14). Since you are subtracting a negative number, the equation becomes 78+14. 78+14 is 92.

Answer: 84

Step-by-step explanation:

67 + 29 + v = 180

96 + v = 180

v = 84

Answer:

H i think i might be worng sorry

Step-by-step explanation:

Answer:

52

Step-by-step explanation: Just Multiply 4x13

Answer:

-$52

Step-by-step explanation:

-$13 * 4 = -$52

(i think it's negative because it ask for the change.)

The required inequality for the pizzas and donuts can be represented as, nx + ny > 0.

Inequality shows relation between two expression which are not equal to each others.

Number of donuts produced each hour = x,

And number of pizzas produced each hour = y.

Let for n hours, donuts and pizzas are produced.

So the inequality for the positive number of pizzas and donuts, the inequality can be presented as,

nx + ny > 0

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To represent the constraints, the inequalities are  x ≤ n and y ≤ m.

When two expressions or values are not equal to one another, this connection is referred to as "inequality" in mathematics.

Let you can make at most n numbers of donuts per hour.

If x represents the number of donuts produced per hour.

To write an inequality to represent this:

x ≤ n.

And also, you can make at most m number of pizzas per hour.

If represents the number of pizzas produced per hour.

To write an inequality to represent this:

y ≤ m.

You may use a variety of methods to eliminate the inequality, including multiplying or dividing each side by the same positive number, adding or subtracting the same amount from each side, and more. If either side is multiplied or divided by a negative value, the inequality sign must be reversed.

Therefore, the inequalities are x ≤ n and y ≤ m.

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Answer:

An upward trend

Step-by-step explanation:

When data points on a graph show a steady upward trend, it is typically referred to as a "positive correlation" or "positive trend."

We have,

A positive correlation means that as one variable increases, the other variable tends to increase as well.

In other words, there is a positive relationship between the two variables being plotted on the graph.

Positive correlation is often represented by a line that slopes upward from left to right on a scatter plot or graph.

Thus,

When data points on a graph show a steady upward trend, it is typically referred to as a "positive correlation" or "positive trend."

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The simplified radical expression by rationalizing the denominator is, \(\frac{-6}{\sqrt{5y}}\times\frac{\sqrt{5y}}{\sqrt{5y}}\) = \(\frac{-6\sqrt{5y}}{5y}$$\) = $\frac{-6\sqrt{5y}}{5y}$.

To simplify the radical expression by rationalizing the denominator, multiply both numerator and denominator by the conjugate of the denominator.

The given radical expression is \($\frac{-6}{\sqrt{5y}}$\).

Rationalizing the denominator

To rationalize the denominator, we multiply both the numerator and denominator by the conjugate of the denominator, \($\sqrt{5y}$\)

Note that multiplying the conjugate of the denominator is like squaring a binomial:

This simplifies to:

(-6√(5y))/(√(5y) * √(5y))

The denominator simplifies to:

√(5y) * √(5y) = √(5y)^2 = 5y

So, the expression becomes:

(-6√(5y))/(5y)

Therefore, the simplified expression, after rationalizing the denominator, is (-6√(5y))/(5y).

\($(a-b)(a+b)=a^2-b^2$\)

This is what we will do to rationalize the denominator in this problem.

We will multiply the numerator and denominator by the conjugate of the denominator, which is \($\sqrt{5y}$\).

Multiplying both the numerator and denominator by \($\sqrt{5y}$\), we get \(\frac{-6}{\sqrt{5y}}\times\frac{\sqrt{5y}}{\sqrt{5y}}\) = \(\frac{-6\sqrt{5y}}{5y}$$\)

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The length of the equilateral triangle = 4.8m

Given that,

The area of the equilateral triangle = 10.2 m²

The formula for the area of an equilateral triangle = \(\sqrt{3} /4 a^{2}\)

Therefore,  

\(\sqrt{3} /4 a^{2}\) = 10.2

\(a^{2}\) = 10.2 × \(4/\sqrt{3}\)

\(a^{2}\) = 10.2 × 4/ 1.732

\(a\) = 4.85

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Instead of using a t-test, alternative statistical tests can be employed when the null hypothesis makes specific claims about the data. These tests are chosen based on the type of data and the specific hypothesis being tested.

When the null hypothesis makes claims about the data that go beyond a simple comparison of means, using a t-test may not be appropriate. Alternative statistical tests can be used in such situations to address specific hypotheses.

For example, if the null hypothesis involves comparing proportions, a chi-square test or Fisher's exact test can be used. These tests are suitable for analyzing categorical data and determining if there is a significant difference between observed and expected frequencies.

Similarly, if the null hypothesis involves comparing means across more than two groups, analysis of variance (ANOVA) or its non-parametric counterpart, the Kruskal-Wallis test, can be employed. These tests allow for the comparison of means across multiple groups and can provide valuable information about the overall differences between groups.

The selection of an appropriate test depends on various factors. The nature of the variables being analyzed, such as categorical or continuous, influences the choice of test. Sample size also plays a role, as some tests require larger sample sizes to yield accurate results. Additionally, each test has certain assumptions associated with it, and researchers need to ensure these assumptions are met before applying the test.

By using alternative tests that are suitable for the specific hypotheses being tested, researchers can gain a deeper understanding of their data. This approach allows for more accurate statistical inferences and can provide valuable insights into the relationships and differences present in the dataset.

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The equation of the line that passes through the points (5,18) and (8,21) is y = x + 13.

An equation of the line is defined as a linear equation having a degree of one. The equation of the line contains two variables x and y. And the third parameter is the slope of the line which represents the elevation of the line.

The general form of the equation of the line:-

y = mx + c

m = slope

c = y-intercept

Slope = ( y₂ - y₁ ) / ( x₂ - x₁ )

Given points are (5,18 ) and (8,21). The equation of the line will be written as,

Slope = ( 21 - 18 ) / ( 8 - 5 )

Slope = 1

The y-intercept will be calculated as,

y = mx + c

18 = 5 + c

c = 13

The equation of the line is written as,

y = x + 13

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Answer:

abboga booga

Step-by-step explanation:

Answer:

n=3

Step-by-step explanation:

if we raise both sides to the power n we get

\(54x^{7}y^{3} = 3^{n}x^{2n}y^{n}*2x\)

so as you see \(y^{3} =y^{n}\) so n=3

Answer:

ready-steady paint

Step-by-step explanation:

if he needs 12 tins, and purchased from paint -O  mine, he would spend (12/3) X 7.50 = 4 x 7.50 = £30

from ready steady, he can buy 4 for £11. he needs 12.

so he will spend (12/4) X 11 = 3 X 11 = £33. but he can get 15% off. 15% off is the same as multiplying by 0.85.

33 X 0.85 = £28.05.

so he his better purchasing from ready steady paint

Answer: polar form

Step-by-step explanation:

Answer:

1 pineapple = $0.5 dollars

Step-by-step explanation:

Given that,

→ the price of 200 pineapples is $100.

Now the price of 1 pineapple is,

→ 100/200

→ $0.5 dollars

Hence, answer is $0.5 dollars.

Answer:

B.

He added up his transactions incorrectly.

Answer:

18

Step-by-step explanation:

18

The volume of a sphere with a radius of 7 cm (or diameter of 12 cm) is 904.32 cubic centimeters.

To find the volume of a sphere with a radius of 7 cm, we can use the formula:

V = (4/3) * π * r^3

where V represents the volume and r represents the radius. However, you mentioned that the diameter of the sphere is 12 cm, so we need to adjust the radius accordingly.

The diameter of a sphere is twice the radius, so the radius of this sphere is 12 cm / 2 = 6 cm. Now we can calculate the volume using the formula:

V = (4/3) * π * (6 cm)^3

V = (4/3) * 3.14 * (6 cm)^3

V = (4/3) * 3.14 * 216 cm^3

V = 904.32 cm^3

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Answer:

a(sub n)=a(sub n-1)÷4 when n≥2

Step-by-step explanation:

a(sub n)=a(sub n-1)÷4 when n≥2 (the second term)

sorry - my iPad doesn’t let me do subscript. You just have to write an n and n-1 in the lower subscript position after a

Answer:

1kg=1000g

2kg=2×1000g

= 2000

Answer:

1 is divided by 3z with difference 2

Alex can make a total of 180 different sandwiches by choosing one kind of meat from 10 options and two kinds of cheese from 9 options.

To determine the number of different sandwiches Alex can make, we need to consider the combinations of meat and cheese. Since Alex can choose one kind of meat from 10 options, there are 10 choices for the meat component of the sandwich. For the cheese component, Alex can choose two kinds of cheese from 9 options.

To calculate the total number of combinations, we can use the formula for combinations without repetition. The formula is nCr = n! / (r!(n-r)!), where n is the total number of options and r is the number of choices. In this case, n is 9 (number of cheese options) and r is 2 (number of cheese choices). Thus, the number of combinations of two kinds of cheese is \(9C2\)= 9! / (2!(9-2)!) = 36.

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The simplified value of the expression √900 + √0.09 + √0.000009 is 30.303.

To simplify the given expression, let's evaluate the square roots individually and then perform the addition.

√900 = 30, since the square root of 900 is 30.

√0.09 = 0.3, as the square root of 0.09 is 0.3.

√0.000009 = 0.003, since the square root of 0.000009 is 0.003.

Now, we can add these simplified values together

√900 + √0.09 + √0.000009 = 30 + 0.3 + 0.003 = 30.303

Therefore, the simplified value of the expression √900 + √0.09 + √0.000009 is 30.303.

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