Find the value of x in the
following parallelogram:
2x + 4
6x - 16
x = [?]
Enter

Answer:

4

Step-by-step explanation:

I'm 99 percent sure that the scale factor is four. Multiply the measurements of Figure A by four, and they match the measurements of Figure B.

Answer:

The answer is C) the starting amount in the account

Step-by-step explanation:

Answer:

4x+14

Step-by-step explanation:

we know that in a rectangle, 2 sides are equal to one another (opposite sides), and the other 2 are equal to each other.

so,

2(5x+5) for the first 2 sides. you'd get 10x+10

2(2-3x) for the other two sides. you'd get -6x+4

add them up, and you'd get 4x+14

Answer:

20,000$

Step-by-step explanation:

15% of 100,000$ is 15,000$

10% of the remaining 50,000$ is 5,000$

Answer:

Hey yes you give brainly to the other person now they answered it even if it's

wrong they still helped thanks Hun hope you pass

Step-by-step explanation:

Answer:

4/103

Step-by-step explanation:

2/the average of 52 and 51

2/51.5 or 4/103

Step-by-step explanation:

I would suggest that this is cluster sampling.

The teacher is selecting a cluster of the population at random to sample.

This is a method of probabalistic sampling.

Answer:

m ∠D = 29°

m ∠T  = 105°

Step-by-step explanation:

Given: ΔSTU and ΔDEF

To find: m ∠D and m ∠T

Solution:

According to SSS similarity criteria,

two triangles are said to be similar if their corresponding sides are proportional.

In ΔSTU and ΔDEF,

[tex]\frac{ST}{DE}=\frac{15}{6}=\frac{5}{2} \\\\\frac{TU}{EF}=\frac{10}{4}=\frac{5}{2}\\\\\frac{SU}{DF}=\frac{20}{8}=\frac{5}{2}[/tex]

So,

[tex]\frac{ST}{DE}=\frac{TU}{EF}=\frac{SU}{DF}=\frac{5}{2}[/tex]

Therefore,

ΔSTU ≈ ΔDEF

If two triangles are similar then measure of their corresponding angles are equal.

m ∠D = m ∠S = 29°

m ∠U = m ∠F = 46°

In ΔSTU,

m ∠S + m ∠T + m ∠U = 180°

29° + m ∠T + 46° = 180°

75° + m ∠T = 180°

m ∠T  = 180° - 75° = 105°

(According to angle sum property of a triangle, sum of measures of angles of a triangle is equal to 180°)

Answer:

True. It would need two interior angles of 90 degrees to have parallel lines. However the interior angles must add up to 180 in order for it to be a triangle therefore it is true.

Step-by-step explanation:

A triangle cannot have side that are parallel is True.

The fundamental characteristics listed below make it simple to recognise parallel lines.

No matter how long you make them, parallel lines will never cross one another.

and, A polygon with three sides and three angles is called a triangle.

So, A triangle does not include any parallel lines because of its shape.

Also, We cannot say a triangle is parallel because a side doesn't have an opposite side.

Hence, A triangle cannot have side that are parallel is True.

Learn more about Parallel line here:

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Answer: 50,40

Step-by-step explanation:

because a right angle is 90 degress

Answer:

Triangle 1 is a right triangle

Triangle 2 is not a right triangle

Triangle 3 is a right triangle

Step-by-step explanation:

Triangle 1: 30^2 + 40^2 = 50^2

                 900  +  1600 =  2500

                             2500 =  2500

Triangle 2: 4^2 + 4^2 = 16^2

                     16 + 16 = 256

                           32 = 256

Triangle 3: 48^2 + 55^2 = 73^2

                 2304 + 3025 = 5329

                             5329 = 5329

Answer:

its D

Step-by-step explanation:

two over y is just division.

Answer:

2 divided by some number

Step-by-step explanation:

when you have a fraction like that your dividing

Answer:

a_n=224(1/2)^n-1

Step-by-step explanation:

In this geometric sequence, we can see that the common ratio is 1/2 and the 1st term is 224. using this information, we can plug it into the geometric series formula and we get a_n=224(1/2)^n-1.

Answer:

(-1, 1)

Step-by-step explanation:

Midpoint formula: (x₁ + x₂/2 , y₁ + y₂/2)

Substitute the values into the formula.

(-5 + 3/2 , 3 - 1/2)

(-2/2 , 2/2)

(-1,1)

Therefore, the midpoint is (-1, 1).

Answer:

The pair of shoes is $84

Step-by-step explanation:

he saved 1/4 (25%) of what he needs to buy the shoes. 25 x 4 =100 =full price

21 x 4 =84. and also if you can do 84 - 25% on a calculator, the 25% would turn to 21, or at least in mine it did. Total price of shoes - money saved = money needed to buy shoes, which is $63.

dang i wrote a lot, but hope this helps

Answer: it should be 14 or 10

Step-by-step explanation:

Answer:

49

Step-by-step explanation:

hope this helps!

Answer:

49

Step-by-step explanation:

49 is the answer!!!!

Answer:

Your answer will be (6,1)

Step-by-step explanation:

I know this because a reflection over the x-axis is (x,y) -> (x,-y) If you apply this to (6,-1) you get (6,1).

Answer:

c:  -9/2

Step-by-step explanation:

to calculate the slope its rise/run so

-9/-2    

now that means ur answer is c -9/2  

Step-by-step explanation:

For all y values, just look along the y-axis. The same applies to the x-axis.

Answer:

a) 0.225

b) (0.167, 0.283)

c) No, since 20% = 0.2 is part of the confidence interval.

Step-by-step explanation:

(a) Calculate the best point estimate of the population proportion of lakes that have unsafe concentrations of acid rain pollution.

45 out of 200 lakes. So

45/200 = 0.225

So the best point estimate of the population proportion of lakes that have unsafe concentrations of acid rain pollution is of 0.225.

(b) Determine a 95% confidence interval for the population proportion.

In a sample with a number n of people surveyed with a probability of a success of [tex]\pi[/tex], and a confidence level of [tex]1-\alpha[/tex], we have the following confidence interval of proportions.

[tex]\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]

In which

z is the zscore that has a pvalue of [tex]1 - \frac{\alpha}{2}[/tex].

For this problem, we have that:

[tex]n = 200, \pi = 0.225[/tex]

95% confidence level

So [tex]\alpha = 0.05[/tex], z is the value of Z that has a pvalue of [tex]1 - \frac{0.05}{2} = 0.975[/tex], so [tex]Z = 1.96[/tex].

The lower limit of this interval is:

[tex]\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.225 - 1.96\sqrt{\frac{0.225*0.775}{200}} = 0.167[/tex]

The upper limit of this interval is:

[tex]\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.225 + 1.96\sqrt{\frac{0.225*0.775}{200}} = 0.283[/tex]

The 95% confidence interval for the population proportion is (0.167, 0.283).

(c) If a local politician states that only 20% of the lakes are contaminated, does the study provide overwhelming evidence at the 95% level to contradict his views?

No, since 20% = 0.2 is part of the confidence interval.

Answer:

1.25 hours = 1 hour 15 minutes

Step-by-step explanation:

5 hours = 2 people

2.5 hours = 4 people

1.25 hours = 8 people

Answer:

-1/2

Step-by-step explanation:

u move up 1 across 2 and slope is going down so it is a negative

Answer:

3/5

Step-by-step explanation:

7/15 + 2/15 = 9/15

both 9 nad 15 are divisible by 3

9/15 = 3/5

4 kilometers

3 kilometers

324 meters

One kilometer is 1,000 meters.

4 kilometers = 4,000 meters

3 kilometers = 3,000 meters

4,000 + 3,000 + 324 = 7,324

Answer: 7,324 meters

Answer:

7,324

Step-by-step explanation:

1,000 meters in a kilometer

Answer:

Remember, 3 is the same thing as 3/1. Before we can divide, we need to make one more change. We'll switch the numerator and the denominator of the fraction we're dividing by: 1/3 in this example. So 1/3 becomes 3/1.

Step-by-step explanation:

:)

Answer:

THE RIGHT ANSWER:

16, 13.4, the 7th grade mean is about 2.5 points higher.

Step-by-step explanation:

Mean for 7th Grade Students is: 16

Mean for 5th Grade Students is: 13.4

Comparing the means, the mean for 7th grade students is 2.6 higher than 5th grade student.

The mean is the average of the data set, that is the sum of each data value divided by the number of data points.

The dot plots for 7th and 5th grade is attached below.

Mean for 7th Grade Students:

Mean = [10 + 11 + (2 × 12) + 13 + 14 + (2 × 15) + (3 × 16) + (3 × 17) + (2 × 18) + (2 × 19) + (3 × 20)]/21

Mean = 335/21

Mean = 15.95 = 16

Mean for 5th Grade Students:

Mean = [8 + (2 × 9) + (2 × 10) + (2 × 11) + (2 × 12) + (2 × 13) + 14 + (3 × 15) + (2 × 16) + 17 (2 × 18) + 19

Mean = 281/21

Mean = 13.38 = 13.4

Difference between their means = 16 - 13.4 = 2.6.

In summary:

Mean for 7th Grade Students is: 16

Mean for 5th Grade Students is: 13.4

Comparing the means, the mean for 7th grade students is 2.6 higher than 5th grade student.

Learn more about the mean of data on:

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Answer:

11.6 lbs

Step-by-step explanation: