Can you please help please please help me with this question i will give you a Brainiest

Answer:

I believe you have multiply then add

Answer:

45.4

if you are happy with my answer, please give brainliest :)

Step-by-step explanation:

You use order of operations and multiply 18 and 2.3 first

4 plus 41.4

45.4

C) randomized block experimental design.

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Answer:c

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

You did not post enough information.

There can be 432 Types of Combinations for a 4-digit number beginning with 1 that has exactly two identical digits

What is permutation and combination?

\($11xy,\qquad 1x1y,\qquad1xy1$\)

Because the number must have exactly two identical number digits,\($x\neq y$\), \($x\neq1$, and $y\neq1$\). Hence, there are \($3\cdot9\cdot8=216$\)  number of this form.

Now suppose that the two identical digits are not 1. Reasoning similarly to before, we have the following possible combination:

\($1xxy,\qquad1xyx,\qquad1yxx.$\)

Again,,\($x\neq y$\), \($x\neq1$, and $y\neq1$\). There are \($3\cdot9\cdot8=216$\) numbers of this form.

Thus the answer is 216+216=432

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Answer:

Step-by-step explanation:

d

Answer:

D

Step-by-step explanation:

The amount paid for each lemon if both girls made same profit expressed by 80.25 - 87c and 73.35 - 64c is $0.30.

Therefore, the answer is (A) $0.30.

Girl 1 made a profit of 80.25 - 87c and girl 2 made a profit of 73.35 - 64c. It is given that both girls make same amount of profit. Therefore,

80.25 - 87c = 73.35 - 64c

(87 - 64) × c = 80.25 - 73.35

23c = 6.90

c = 6.90/ 23

c = 0.30

Therefore, the amount of money both of the girls paid for each lemon is $0.30.

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1)The expression 4x^2-16x+12/x^2-9 is undefined when the denominator, x^2-9, equals zero because division by zero is undefined.

x^2-9 equals zero when x equals 3 or x equals -3. Therefore, the expression is undefined at x = 3 and x = -3. In all other cases, the expression is defined.

2) The given expression is:

(5-2x)/(x+2) + x^2/(x^2-4) - 5

To simplify this expression, we need to first find the LCD (least common denominator) of the two fractions. The denominator of the first fraction is x+2, and the denominator of the second fraction is x^2-4, which can be factored as (x+2)(x-2). So the LCD is (x+2)(x-2). Now we can rewrite the expression with this common denominator:

[(5-2x)(x-2) + x^2(x+2) - 5(x+2)(x-2)] / [(x+2)(x-2)]

Expanding the brackets and simplifying, we get:

(-x^3 - 3x^2 - 3x + 5) / [(x+2)(x-2)]

This expression is undefined when the denominator, (x+2)(x-2), equals zero because division by zero is undefined.

(x+2)(x-2) equals zero when x equals -2 or x equals 2. Therefore, the expression is undefined at x = -2 and x = 2. In all other cases, the expression is defined.

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Answer:

 \frac{5}{x + 6}

Step-by-step explanation:

\frac{5(x + 1)}{((x +6 )(x + 1 )} \\

Cancel (x+1)

Answer = \(\frac{5}{x + 6}\)

Answer:

-6

Step-by-step explanation:

There are 12 cells or groups in a 3 × 4 ANOVA design.

So, the answer is option B.

This design involves three levels of one independent variable and four levels of another independent variable, resulting in 12 unique combinations or cells.

Each cell represents a specific condition or treatment group in the study, and the dependent variable is measured for each group.

ANOVA, or analysis of variance, is a statistical method used to compare means between groups to determine if there are significant differences. Understanding the number of cells or groups in the design is important for planning the study and interpreting the results accurately.

Hence,the correct answer is B.

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Answer:

736

Step-by-step explanation:

1- Multiply

2- Calculate

Answer:

736

Step-by-step explanation

Answer:

-3 is on the x coordiante and 5 is in y coordinate

so, its always written as (x,y)

stay safe

can i have brainliest

Step-by-step explanation:

It is not possible to have such a large number of Elvis impersonators, so this prediction is not reasonable.

1. Number of Elvis impersonators in 1977:We have been given the function \(n(t) = 170(1.31)^t\), since the year 1977 is zero years after Elvis's death.
\(n(t) = 170(1.31)^tn(0) = 170(1.31)^0n(0) = 170(1)n(0) = 170\)

There were 170 Elvis impersonators in 1977.2.
Percent rate of increase: The percent rate of increase can be found by using the following formula:
Percent Rate of Increase = ((New Value - Old Value) / Old Value) x 100
We can calculate the percent rate of increase using the data provided by the formula n(t) = 170(1.31)^t.

Let us compare the number of Elvis impersonators in 1977 and 1978:
When t = 0, n(0) = 170When t = 1, \(n(1) = 170(1.31)^1 ≈ 223.7\)

The percent rate of increase between 1977 and 1978 is:
\(((223.7 - 170) / 170) x 100 = 31.47%\)
The percent rate of increase is about 31.47%.3.

The number of Elvis impersonators when t = 70 is: \(n(70) = 170(1.31)^70 ≈ 1.5 x 10^13\)
This number is not a reasonable prediction because it is an enormous figure that is more than the total world population.

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The answers are for sides forming right angle triangle:

13. No, it does not form a right triangle.

14. Yes, it forms a right triangle.

15. Yes, it forms a right triangle.

what is Pythagorean theorem?

The Pythagorean theorem is a fundamental concept in mathematics that describes the relationship between the sides of a right triangle. It states that in any right triangle, the sum of the squares of the lengths of the two shorter sides (legs) is equal to the square of the length of the longest side (hypotenuse).

This can be expressed mathematically as:

\(a^2 + b^2 = c^2\)

where "a" and "b" are the lengths of the two legs of the right triangle, and "c" is the length of the hypotenuse.

According to the question:
To determine if the three given side lengths would form a right triangle, we need to check if the Pythagorean theorem is satisfied. The Pythagorean theorem states that in a right triangle, the sum of the squares of the two shorter sides (legs) is equal to the square of the longest side (hypotenuse).

Let's check each set of side lengths:

9 ft, 12 ft, 16 ft

We need to check if \(9^2 + 12^2 = 16^2:\)

81 + 144 = 256

225 ≠ 256

Therefore, this set of side lengths does not form a right triangle.

3 cm, 4 cm, 5 cm

We need to check if \(3^2 + 4^2 = 5^2:\)

9 + 16 = 25

25 = 25

Therefore, this set of side lengths does form a right triangle.

16 m, 30 m, 34 m

We need to check if \(16^2 + 30^2 = 34^2:\)

256 + 900 = 1156

1156 = 1156

Therefore, this set of side lengths does form a right triangle.

Therefore, the answers are:

No, it does not form a right triangle.

Yes, it forms a right triangle.

Yes, it forms a right triangle.

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Answer:

input = 6 leads to output = 15

input = 9 leads to output = 21

==================================================

Explanation:

If the input is x = 6, then,

y = 2x+3

y = 2(6)+3

y = 12+3

y = 15 is the output

Repeat those steps for x = 9

y = 2x+3

y = 2(9)+3

y = 18+3

y = 21 is the output

Answer:

Adjacent = 9.75 inches.

Step-by-step explanation:

Given the following data;

Hypothenus = 12 inches

Opposite = 7 inches

To find the other leg i.e adjacent, we would use Pythagorean' theorem given by the formula;

Hypothenus² = opposite² + adjacent²

Substituting into the formula, we have;

12² = 7² + adjacent²

144 = 49 + adjacent²

Adjacent² = 144 - 49

Adjacent² = 95

Taking the square root of both sides, we have;

Adjacent = 9.75 inches.

Therefore, the other leg is 9.75 inches.

Answer:

C is correct

Step-by-step explanation:

Answer:

10;37°

Step-by-step explanation:

Pythagoras theorem will be used to find the length of EF and the knowledge of complementary angles will be used to solve for angle D

Answer:

2m/s² ; - 2m/s²

25m ; 50m ; 25m

6.67 m/s²

Step-by-step explanation:

The acceleration and deceleration :

Both rates are the Same from the graph ;

According to scenario described, acceleration = 2m/s²

Deceleration occurred in equal time interval = - 2m/s

Distance covered during each stage:

Stage 1 : area of triangle

0.5 * base * height

0.5 * 5 * 10 =25 m

Stage 2: area of rectangle :

Length * breadth = 5 * 10 = 50 m

Stage 3 : area of triangle

0.5 * base * height

0.5 * 5 * 10 =25 m

Average Velocity :

Total distance / time = (25 + 50 + 25) / 15 = 100/ 15 = 6. 67 m/s

Answer:

x=4 y=8

Step-by-step explanation:

\(\left\{\begin{array}{ccc}y=2x&(1)\\3x+4y=22&(2)\end{array}\right\)

Put (1) to (2):

\(3x+4(2x)=22\\3x+8x=22\\11x=22\qquad|\text{divide both sides by 11}\\\boxed{x=2}\)

Substitute the value of x to (1):

\(y=2\cdot2\\\boxed{y=4}\)

Solution:

\(\huge\boxed{\left\{\begin{array}{ccc}x=2\\y=4\end{array}\right}\)

Answer:

He has read 217 pages. He has not read 93 pages.

Step-by-step explanation:

310x70% = pages read = 217

310x30% = pages not read = 93

Answer:

b. 1,200 + 20 + 14

Step-by-step explanation:

617

x

2

______

1234

______

1234 aka. 1,200 + 20 + 14

The area of the Rectangle is 70 units², So option (C) is the correct answer.

Let,

     Length of Rectangle = 10 units

     Width of Rectangle = 7 units

Area of rectangle =  length × Width

Putting the Length and Width of the rectangle in the last equation.

So,

Area of rectangle = 10 × 7 units²

Area of rectangle = 70 units²

Hence, The area of the rectangle is 70 units².

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From the given set S, the only integer that makes the inequality m - 5 + 3 false is m = -24.

To determine which integer(s) from the set S: (-24, 2, 20, 35) will make the inequality m - 5 + 3 false, we need to substitute each integer from the set into the inequality and check if the inequality becomes false.

The inequality is:

m - 5 + 3 < 0

Substituting each integer from the set S into the inequality:

For m = -24:

(-24) - 5 + 3 < 0

-26 + 3 < 0

-23 < 0 (True)

For m = 2:

2 - 5 + 3 < 0

0 < 0 (False)

For m = 20:

20 - 5 + 3 < 0

18 < 0 (False)

For m = 35:

35 - 5 + 3 < 0

33 < 0 (False)

From the given set S, the only integer that makes the inequality m - 5 + 3 false is m = -24.

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The quadratic equation in the given graph is:

y = -3(x - 1)^2 + 4

How to write the quadratic.

Look at the vertex, is it at (1, 4), then we can write the general quadratic equation in the vertex form (with a leading coefficient a) as follows:

y = a(x - 1)^2 + 4

Now the function passes through (0, 1) then we can replace these values in the equation above to get.

1 = a(0 - 1)^2 + 4

1 = a + 4

1 - 4 = a

-3  =a

The quadratic equation is:

y = -3(x - 1)^2 + 4

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By SAS similarity, ΔKML and ΔRTL are similar triangles. Therefore, option A is the correct answer.

From the given figure, KR=9 units, RL=15 units, MT=7.5 units and TL=12.5 units.

Two triangles are similar if the angles are the same size or the corresponding sides are in the same ratio. Either of these conditions will prove two triangles are similar.

Consider ΔKML and ΔRTL, we get

RL/KL =15/(15+9)

= 15/24

= 5/8

TL/ML =12.5/(12.5+7.5)

= 12.5/20

= 5/8

Here, RL/KL=TL/ML

Here, ∠KLM≅∠RLT

By SAS similarity, ΔKML and ΔRTL are similar triangles

So, ∠KMT≅∠RTL

By SAS similarity, ΔKML and ΔRTL are similar triangles. Therefore, option A is the correct answer.

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Answer:

a

Step-by-step explanation:

got it right in edmentum

confidence interval is (53.0, 60.8), where 53.0 is the lower limit and 60.8 is the upper limit. This means we are 95% confident that the population means lies within this interval.

a) The length of a confidence interval is twice the margin of error. In this case, the margin of error is 3.9, so the length of the confidence interval would be 2 * 3.9 = 7.8.

b) To obtain the confidence interval, we need the sample mean and the margin of error. Given that the sample mean is 56.9, we can construct the confidence interval as follows:

Lower limit = Sample mean - Margin of error = 56.9 - 3.9 = 53.0

Upper limit = Sample mean + Margin of error = 56.9 + 3.9 = 60.8

Therefore, the confidence interval is (53.0, 60.8), where 53.0 is the lower limit and 60.8 is the upper limit. This means we are 95% confident that the population means lies within this interval.

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