Help! Which method can you use to prove that the triangles are congruent?

Answer: + or - in between the 3x and 6? Can be either 7 or 3

Step-by-step explanation:

3x+6=15.

Subtract '6' on both sides.

3x=9.

Divide by '3'.

x=3

3x-6=15.

Add '-6' on both sides.

3x=21

Divide by '3'.

x=7

Again, it solely depends on your sign in between the first two numbers.

From the given graph, the slope of the given line is [tex]m=\frac{-4}{3}[/tex]

Given,

The points

[tex](x_{1},y_{1})=(-2,3)[/tex]

[tex](x_{2},y_{2})=(1,-1)[/tex]

The slope of the line m= [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]

Substitute the values in the equation

[tex]m=\frac{(-1)-(3)}{1-(-2)} \\m=\frac{-1-3}{1+2}\\ m=\frac{-4}{3}[/tex]

Hence, the slope of the given line is [tex]m=\frac{-4}{3}[/tex]

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Answer:

270 9764

359

548

69

80

554

331

594

850

667

216

8674

213

253

5

3

64

7

45

692

213

649

8574

6646

549

837

849

Answer:

It would be 28.69.

Explanation:

4.99 x [tex]5 \frac{3}{4}[/tex] = 28.6925

Because of the kind of number (28.6925), you will have to round up.

To round up the number has to be a 5 or higher. Well, you have a 9 and then a 2. A 2 can't round up a 9, so you just end up discarding the 2 and the 5 at the end of the number.

Henceforth, you are left with 28.69.

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

Hope this makes sense and is correct!

God bless! :)

The percentage decrease is 9.83%.

The previous year Springfield middle school students were 620. This year it is 559 students.

Here we have to find the decrease in the percentage of students from the previous year.

The decrease in the students = 620- 559

                                                 = 61

Percentage decrease = (decrease/number of students last year)× 100

                                    = (61/ 620 )× 100

                                    = 0.09838 ×100

                                    = 9.83%

Therefore the percentage decrease in the number of students from the previous year is 9.83%

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Answer:

TU = 27

Step-by-step explanation:

ST + TU = SU

(8x - 11) + (14x - 15) = 19x - 17

8x - 11 + 14x - 15 = 19x - 17

22x - 26 = 19x - 17

22x - 19x = 26 - 17

3x = 9

x = 3

TU = 14x - 15 = 14(3) - 15 = 27

Answer:

183/100

Step-by-step explanation:

hope this works :)

Answer:

183/100 as a fraction of 1.83

The required equation is 2.5x + 5y + 5.7z = 75.

Mass is measured in terms of weight of body. Gram, kilogram, and pounds are some of the standard mass units to measure.

Given that,

Pennies, nickels, and quarters are added to a scale by Stephanie until the combined weight of the coins is 75 grams.

Number of pennies = x

Each pennies has a mass = 2.5 grams

Mass of x pennies  = 2.5x grams

Number of nickels = y

Each nickels has a mass = 5  grams

Mass of y nickels = 5y grams

Number of Quarters = z

Each Quarter has a mass = 5.7  grams

Mass of z Quarters = 5.7z grams

Total Mass = Mass of x Pennies + mass of y nickels + mass of z quarters

= 2.5x + 5y + 5.7z grams

Total Mass = 75 grams

Equation both is 2.5x + 5y + 5.7z = 75

The required equation is 2.5x + 5y + 5.7z = 75.

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By using the trigonometric function of cosine, we conclude that the length of the hypotenuse is approximately equal to 7.2 units.

Right triangles are triangles such that one of its internal angles is a right triangle. Fundamentally, trigonometric functions are relationships between two distinct sides of a right triangle.

The picture show that the length of one leg and the measure of the angle between that leg and the hypotenuse are known, but the length of the hypotenuse does not. By using concepts of trigonometric functions, we can find the length of the hypotenuse by using the cosine function:

cos θ = s / x

cos 33° = 6 / x

x = 6 / cos 33°

x = 6 / 0.839

x ≈ 7.154

The length of the hypotenuse is approximately equal to 7.2 units.

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Answer:

He worked 7 hours

Step-by-step explanation:

X= Number of jobs, H= Hours worked T= Total money made

firstly we have to arrange this into a formula, which will allow you to insert any a value of one variable and find the other variable

this equation is 75x + 45h = T

from this question we know that he worked 2 jobs and made a total of 456$

Adding these into the equation we get:

(75*2) + 45h = 465

solving to find h by isolating the variable, the final answer will be

h = 7

Answer -2|3d| = 4

Step-by-step explanation:

no solution

Answer:

Step-by-step explanation:

a

Answer:

Step-by-step explanation:

its ratio

Answer:

10 1/2

Step-by-step explanation:

The side of the smaller triangle has a length of 7, the larger triangle will be:

= (7 × 3)/2

= 10 1/2

A . 3 pounds of potatoes

B . 2 pounds of potatoes

A . Janice will purchase potatoes until the value of potatoes is less than the cost of potatoes. Janice has $5.00 to spend on potatoes and the cost of potatoes is $1.00.

By assuming that the First pounce of potatoes is worth $1.50. which is greater than $1.00. If the second pound is worth $1.14, then Janice will purchase these as well, since the value is more than $1.00. If the remaining pounds are worth $0.30 then Janice will not purchase these because the value is less than the cost.

Thus Janice will purchase 3 pounds of potatoes for the Total cost of $3.00

B. Now assume Janica has only $2.00 to spend on potatoes. She will purchase the first pound which is $1.50 and the second pound which is $1.14. She now spends her entire amount of money on potatoes. If she want to purchase she could not do that.

Thus Janice will purchase 2 pounds of potatoes at a total cost of $2.00

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The complete question is:

Potatoes cost Janice $1 per pound, and she has $5.00 that she could possibly spend on potatoes or other items. If she feels that the first pound of potatoes is worth $1.50, the second pound is worth $1.14, the third pound is worth $1.05, and all subsequent pounds are worth $0.30 per pound, how many pounds of potatoes will she purchase? How many pounds will she purchase if she has only $2 to spend?

The answer would be D. 4

because you would multiply the numerator and denominator by the conjugate.

Each participant selects 'a' with a probability of (1/2)^a;

the lowest particular wonderful integer (LUPI) recreation is a recreation that, relying on who you ask and while 12 months you ask it, has either been pretty thoroughly studied or no longer studied in any respect. There seem to be a few wonderful solutions; for instance, one symmetric mixed method is as follows if all integers are approved:

What is probability explain?

probability is a measure of the chance of an event to arise. Many activities can't be expected with total fact. we will predict handiest the chance of an event to occur i.e. how possibly they are to happen, using it

probability is the department of mathematics regarding numerical descriptions of ways probably an event is to occur, or how in all likelihood it is that a proposition is genuine. The opportunity of an occasion is various among zero and 1, where, more or less speakme, zero indicates impossibility of the event and 1 suggests truth

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Total charge by company A for 80 sq.feet = 250+10(80)= $1050

Total charge by company B for 80 sq.feet = 90+12(90)=$1170

Let x be the no.of square feet for landscaping

Company A

Monthly consulting fee = $250

Cost of landscaping of 1 sq.feet = $10

Cost of landscaping of x sq.feet = $10x

So, Total charge by company A = 250+10x  ---1

Company B

Monthly consulting fee = $90

Cost of landscaping of 1 sq.feet = $12

Cost of landscaping of x sq.feet = $12x

So, Total charge by company B = 90+12x   ---2

Now we are supposed to find  how many square feet of landscaping will the two companies charge the same amount

So, Equate 1 and 2

250+10x = 90+12x

160=2x

80=x

So, the two companies charge the same amount for 80 sq.feet

Total charge by company A for 80 sq.feet = 250+10(80)= $1050

Total charge by company B for 80 sq.feet = 90+12(90)=$1170

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Answer:

70 m / 40 seconds = 7/4 m/s or 1.75 m/s

Step-by-step explanation:

the line stops at 0.7 time = 40 seconds

70 m / 40 seconds = 7/4 m/s or 1.75 m/s

The hourly rate will be $21.6

Taxes are money charged from the good bought or sold. Given the following parameters

Amount received = $826.60

Tax paid = $91.40

Balance = 826 - $91.40

Balance = $734.6

This shows that the man collected $734.6 for a 34 hours work. The hourly rate will be;

Hourly rate= $734.6/34

Hourly rate= $21.6

Hence the hourly rate will be $21.6

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The value of x is -1 and the values on both sides are the same, hence the equation has infinite number of solution

Linear equations are equation that has a leading degree os 1. Given the equations below:

-x +4 = x + 6

Collect the like terms

-x - x = 6 - 4

-2x =2

Divide both sides by -2

-2x/-2 = 2/2

x = -1

For the expression

5n + 7 =. 7(n+1) - 2n

5n + 7 = 7n + 7 - 2n

simplify

5n - 5n = 7 - 7

0n = 0

Since the values on both sides are the same, hence the equation has infinite number of solution

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Answer:

Step-by-step explanation:

3(2x−1)<2(4+3x)

Step 1: Simplify both sides of the inequality.

6x−3<6x+8

Step 2: Subtract 6x from both sides.

6x−3−6x<6x+8−6x

−3<8

Step 3: Add 3 to both sides.

−3+3<8+3

0<11

any number below 11 is a solution.

"The spaces are usually stocked with standard office [26] equipment,

such as photocopiers, printers, and fax machines." Option A: No Change, i.e., no sentence correction is needed.

Sentence correction or sentence improvement is a type of grammatical practice where a sentence is given with a word or a phrase that requires grammatical changes or improvement.

Now,

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Answer:

2L+2W

Step-by-step explanation:

U JUST MOVE THE 2 TO THE L AND MOVE THE 2W TO THE OTHER SIDE. I THINK MY ANSWER IS RIGHT BUT MAYBE WAIT FOR ANOTHER PERSON

Confirmed Solution:

[tex]p=2l+2w[/tex]

Hope this helps!

We need to know the concept of mean and standard deviation to solve the problem.The standard deviation of the data set is 18.36

The given dataset is 1,2,3,3,4,4,4,4,5,5,6,70, inorder to find the standard deviation of the data set we need to first find the mean of the dataset. Mean of a dataset means the average of the set of numbers. We divide the sum of all the numbers in the data set by the size of the set. We represent mean by μ.

μ=[tex]\frac{1+2+3+3+4+4+4+4+5+5+6+70}{12} =\frac{111}{12} =9.25[/tex]

Standard deviation measures the dispersion of a dataset relative to it's mean, the square of standard deviation is variance.

The formula for standard deviation is :

σ=[tex]\sqrt{\frac{(1-9.25)^{2}+(2-9.25)^{2} +...+(70-9.25)^{2} }{12} } =\sqrt{\frac{68.0625+52.5625+78.125+110.25+36.125+10.5625+3690.5625}{12} } \\=\sqrt{\frac{4046.25}{12} } =\sqrt{337.1875} =18.36[/tex]

Thus we found the standard deviation of the data set to be 18.36

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The coordinates of the pre-image of point F' is (-2, 4)

On the given graph, the location of point F' is given as:

F' = (4, -2)

The rule of reflection is given as

Reflection across line y = x

Mathematically, this is represented as

(x, y) = (y, x)

So, we have

F = (-2, 4)

Hence, the coordinates of the pre-image of point F' is (-2, 4)

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Percentage decrease = Difference/Original price*100

[tex] = \frac{18 - 12}{18} \times 100 = \frac{600}{18} = 33.33\%[/tex]

Hope this helps :)