?? i’m not sure what the answer is help meee

Answer:

The answer is one pair of socks = $10

Step-by-step explanation:

I subtracted 42 by 12 and got 30. I then divided 30 and 3 and got 10.

42-12=30

30/3=10

Or you can subtract 12 from both sides to get the variable on one side. Then you divide the variable by the coefficient (3) and divide 30 by 3 to get 10.

Answer:

A.15

Step-by-step explanation:

These two triangles are congruent triangles. This means that the side measurements can be found through a single multiplicative number.

All you have to do is divide 49 by 23 and get 2.130434783. You need that number to be specific

Next you want to multiply that number by the side length that corresponds to the length you are trying to find. In this case that is 7.  

7 x 2.130434783=14.9

14.9 rounds to 15

Answer:

hallar ''EF , si MN =24cm preguntas para responder: a)30. 2 , b)15. 2 , c)15 . d)

A food processor has an efficiency of 0.4. It generates 350 W of usable power. The total power input of the food processor is 349.6W.

Therefore,

Efficiency equals total power in less usable power out.

Efficiency =0.4 effective power =350 watts

total power input is,

0.4 = 350350 - 0.4

Simplifying the above equation,

= 349.6

Hence, A food processor has an efficiency of 0.4. It generates 350 W of usable power. The total power input of the food processor is 349.6W.

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You need to prove that ΔAEC ≅ ΔBED

You know that point E is the midpoint of AB and CD

The midpoint divides a line segment into two congruent lines. This means that E divides AB into two congruent segments AE and EB, and it also divides CD into two congruent segments CE and ED, then we can conclude that:

1. AE=EB → Reason Midpoint Theorem

2. CE=ED → Reason Midpoint theorem

Both lines AB and CD intersect at point E, forming an X shape. The ingles formed inside the X are vertically opposite angles, this means that

3. ∠AEC= ∠BED → Reason Vertically opposite angles

Since E is the midpoint where both "diagonals of the parallelogram" AB and CD intersect, then sides AC and DB are parallel. If AB || CD, then ∠ACE and ∠BDE are alternate interiors angles as well as ∠CAE and ∠DBE. Alternate interior angles are congruent, so that:

4. ∠ACE=∠BDE → Reason alternate interior angles, AB || CD

5. ∠CAE=∠DBE → Reason alternate interior angles, AB || CD

Then → ΔAEC ≅ ΔBED by SAS and AAA

The statement that best compares the lengths is given as follows:

The average length of the tongue of a giraffe is 3.1 times greater than the average length of the tongue of a red-bellied woodpecker.

The ratio between an amount a and an amount b, with a greater than b, is obtained applying a proportion, and it says how many times greater the measure a is then the measure b.

The amounts for this problem are given as follows:

Hence the ratio is:

20.8/6.7 = 3.1.

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According one-way ANOVA, the test is false.

We learn about one-way ANOVA

"One-Way ANOVA, also known as "analysis of variance," examines the refers to two or more independent groups to see if there is statistical support for the notion that the related population means are statistically substantially different."

According to the given information, it is inappropriate to compare two means at a time using multiple independent two sample​ t-tests. It will create multiple testing problem and error.

So using one way ANOVA test when comparing three or more populations refers to within a set of quantitative data that is categorized according to one​ factor/treatment and compare two means at a time using multiple independent two sample​ t-tests is false.

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Answer: God

Step-by-step explanation: LORD HAVE MERCY

Answer:

y=-2x+3

Step-by-step explanation:

for one, you can see that the y-intercept is at 3, so for y=m*x+b, b is 3

next, you can count to get the slope. it moves 2 units down and one unit to the left, so for slope, which is rise over run, you are -2/1= -2

so y = -2x + 3

Answer:

4/15

Step-by-step explanation:

Answer:

Ben painted \(\frac{4}{15}\) of the room

Step-by-step explanation:

For this, you must add \(\frac{2}{5} + \frac{1}{3}\)

5 (3) = 15

In order to get 5 to 15, you multiply by 3, therefore

2(3) = 6

In order to get 3 to 15, you multiply by 5, therefore

1(5) = 5

Which means you now have,

\(\frac{6}{15} + \frac{5}{15}\)

Which is equal to

\(\frac{11}{14}\)

Now an equation can be set up

11 + X = 15

-11         -11

X = 4

Ben painted \(\frac{4}{15}\) of the room

-Hope this helps!

A system of inequalities that models the number of 2R prints and 3R prints Grace had for her scrapbook include the following;

x + y ≥ 5

3x + 5y ≤ 2000

In order to write a system of inequalities to describe this situation, we would assign variables to the number of 2R prints and the number of 3R prints respectively, and then translate the word problem into a linear equation as follows:

Since Grace printed not less than 60 photos on 2R and 3R and each 2R print costs P3 and a 3R print costs P5 and she spent a maximum of P200 for her printing needs, a system of inequalities that models the situation is given by;

x + y ≥ 5

3x + 5y ≤ 2000

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Missing information:

Write a system of inequalities to model this situation

Answer:

Step-by-step explanation:

-2x + 9 < x - 9                     Add 9 to both sides

-2x + 9 + 9 < x - 9 + 9        Combine

-2x + 18 < x                         Add 2x to both sides

-2x+2x + 18 < x + 2x           Combine

18 < 3x                                 Divide by 3

18/3 < 3x/3

6 < x

Answer: 5 5/6

Step-by-step explanation: make them both into fractions so 7/1 and 5/6 multiply across 7*5=35 and 1*6=6 simplify that down into a mixed number gives you 5 5/6

When taking a measurement using a device with an analog scale, we can determine the last digit in the number you report by Add one estimated value aside from the value given by the analog scale. The estimate will be your best guess on where it falls relative to the object measured.

Analog scales are a type of scale operated manually without using electricity to determine the weight of a weighted object. The definition of scales can be concluded as a tool that has the function of measuring or knowing the mass of an object/substance.

Analog scales existed before the use of electronic/electrical technology on analytical scales. The working principle of analog scales is based on the gravitational swing arm balance.

This is where it is important for you to know the meaning of balances / scales and how to use them.

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Answer:

A

Step-by-step explanation:

the equation of a circle in standard form is

(x - h )² + (y - k )² = r²

where (h, k ) are the coordinates of the centre and r is the radius

here (h, k ) = (- 3, 6 ) and r = 2 , then

(x - (- 3) )² + (y - 6)² = 2² , that is

(x + 3)² + (y - 6)² = 4

Answer:

the answer is Equal to zero

Step-by-step explanation:

hope it's help correct me if I'm wrong <3

Answer:

≥0

Step-by-step explanation:

This one may seem tricky. The denominator is ALWAYS one more than the numerator. So, let's take a look at some examples.

-2/-1

This is >0. And even if you keep going to a number as high as -10000/-9999, it will ALWAYS be >0.

0/1

Hmm...this one is equal to 0. Seems like we have ≥0 right now.

2/3

>0, right? Well, since we have expression ≥0, that's your answer!

Hope it helps!

Answer:

Step-by-step explanation:

The dimension of the basis is {[1 0 0 2], [-1 1 0 0]}.

To find a basis for the subspace S = span {[1 -1 0 2], [3 -5 4 8], [0 1 -2 -1]}, we can use the same method as in the example. First, we put the vectors in a matrix and row-reduce it:

[1 -1 0 2]
[3 -5 4 8]
[0 1 -2 -1]

R2 - 3R1 -> R2
R3 -> R3 + 2R1

[1 -1 0 2]
[0 -2 4 2]
[0 1 -2 -1]

-1/2R2 -> R2

[1 -1 0 2]
[0 1 -2 -1]
[0 1 -2 -1]

R3 - R2 -> R3

[1 -1 0 2]
[0 1 -2 -1]
[0 0 0 0]

We can see that the last row is all zeros, so we have only two pivots and one free variable. This means that the dimension of the subspace S is 2. To find a basis, we can write the pivots as linear combinations of the original vectors:

[1 -1 0 2] = [1 0 0 2] + [-1 1 0 0]
[0 1 -2 -1] = [0 1 -2 -1]

Therefore, a basis for S is {[1 0 0 2], [-1 1 0 0]}.

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Answer:

\(x=61\)

Step-by-step explanation:

\(-3+\sqrt{2x-1} =8\)

\(\sqrt{2x-1} -3=8\)

Add 3 to both sides of the equation:

\(\sqrt{2x-1}-3+3=8+3\)

\(\sqrt{2x-1}=11\)

Solve the square root:

\(\sqrt{2x-1}=11\)

\(2x-1=11^{2}\)

\(2x-1=121\)

\(2x-1+1=121+1\) {add 1 to both sides}

\(2x=122\)

\(x=122/2\)

\(x=61\)

hope this helps.......

Answer:

The mode is 78, which appears the most times (3).

The mode of the given data 62, 78, 84, 62, 72, 78, 54, 60, 78, 80 is 78.

The mode is the data that occurs most frequently, in the data set listed below 62, 78, 84, 62, 72, 78, 54, 60, 78, 80. We can see that the number 78 appears three times, which is more than any other value in the set when we look at the data.

Note: If multiple values occur with the same highest frequency, but in this case, 78 is the only mode, the data set may have multiple modes.

Thus, the mode of 62, 78, 84, 62, 72, 78, 54, 60, 78, and 80 data set is 78.

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On average, there are 1.80 accidents in the intersection in a week. The answer is 1.80

We have been given a probability distribution function of a random variable X, which represents the number of accidents in a certain intersection in a week. The probability distribution is as follows:

x 0 1 2 3 4 5

P(X = x) 0.20 0.30 0.20 0.15 0.10 0.05

To find the average number of accidents in the intersection in a week, we use the formula for the expected value of a discrete probability distribution:

μ = ∑(xP(x))

Here, μ represents the expected value of X, and the summation goes from x = 0 to 5.

Let's substitute the given values into the formula:

μ = 0(0.20) + 1(0.30) + 2(0.20) + 3(0.15) + 4(0.10) + 5(0.05)

μ = 0 + 0.30 + 0.40 + 0.45 + 0.40 + 0.25

μ = 1.80

Therefore, on average, there are 1.80 accidents in the intersection in a week. The answer is 1.80.

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The measure of the intercepted arc is equal to 134 degrees

The measure of arc BD is calculated using the inscribed angle theorem, this theorem have that  the measure of the inscribed angle is equal to half the measure of the intercepted arc.

This is represented mathematically as

inscribed angle = 1/2 x intercepted arc

Where

inscribed angle = 67

intercepted arc = ?

then we have that

inscribed angle = 1/2 x intercepted arc

67 = 1/2 x intercepted arc

intercepted arc = 2 x 67

intercepted arc = 134 degrees

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The character Hannah is sent back in time to the Holocaust in Jane Yolen's book "The Devil's Arithmetic," where the Nazis tattoo a number on her arm.

The guy who tattooed Hannah's arm begs her not to forget the number because it serves as a powerful reminder of the significance of remembering and never forgetting the past and acts as a permanent reminder of the crimes done during the Holocaust. Hannah must remember the number since it is also a way of tracking and identifying people within the concentration camp.

Hannah is questioned about her name by the prisoner who is in charge of tattooing the ladies. That person is Chaya Abramowicz, she responds. She is wearing his daughter's outfit, he informs her. She had the same name, Chaya. He advises her to live for all the Chayas in the world and to never forget her prisoner number.

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Sami is 9 inches taller than his sister

Hope this helps.

According to the In context, the phrase "This from her" (lines 47-48) helps to suggest that a certain decision is out of character

The correct option is C.

In the lines 47-48 the phrase "This from her" described that is complaining that everything she did was in vain, and that she later thought she would spend the rest of her days in New York, which led her to the choice she didn't want to make.

Reading comprehension questions have a high chance of being scored. A passage is presented to us, along with some questions. Even if the information in the passage deviates from actual facts, the questions must be answered using it.

The definition of comprehension refers to your capacity for understanding something or to the degree to which you actually comprehend something. Your level of understanding of a challenging math problem is an illustration of comprehension.

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There are 6561 different ways in total to respond to the multiple-choice test questions.

The number of quiz question = 8.

Number of possible answer is = 3.

The entire test of 8 questions could be answered in one of three ways for each question, and each solution is independent of any other answers:

= 3*3*3*3*3*3*3*3

= 3^8 ways

= 6561 ways

Thus, there are 6561 different ways in total to respond to the multiple-choice test questions.

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The coordinates of X that partitions XY in the ratio 5 to 4 include the following: X (-1.6, -7).

In this scenario, line ratio would be used to determine the coordinates of the point X on the directed line segment AB that partitions the segment into a ratio of 5 to 4.

In Mathematics and Geometry, line ratio can be used to determine the coordinates of X and this is modeled by this mathematical equation:

M(x, y) = [(mx₂ + nx₁)/(m + n)],  [(my₂ + ny₁)/(m + n)]

By substituting the given parameters into the formula for line ratio, we have;

M(x, y) = [(5(2) + 4(-6))/(5 + 4)],  [(5(-11) + 4(-2))/(5 + 4)]

M(x, y) = [(10 - 24)/(9)],  [(-55 - 8)/9]

M(x, y) = [-14/9],  [(-63)/9]

M(x, y) = (-1.6, -7)

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Missing information:

The question is incomplete and the complete question is shown in the attached picture.

Answer:

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

The nth term is visible in the sum:

Apply n = 10 to find the 10th term:

The matching choice is C.

Answer

3, the number is 3

Step-by-step explanation:

work backwards, do 8-5 to get three. you can check to see if you're right by adding 5 to 3, which gives you 8.