3. Which statement is true?

Answer:

x=79°

Step-by-step explanation:

[tex]x + 101 = 180( < \: on \: str \: line = 180) \\ x = 180 - 101 \\ x = 79[/tex]

I know

Step-by-step explanation:

I wish I it but i dont and i think that other person will

Answer:

Q1. 15
Q2. You're correct
Q3. 3.60
Q4. 2  Correct

Step-by-step explanation:

Answer: 63

Step-by-step explanation:

The acute angles of a right triangle are complementary, so [tex]w+27=90 \longrightarrow w=63[/tex]

[tex]\textbf{b.)} ~ 6+(-x)\\\\\textbf{c.)} ~ -x+6\\[/tex]

Answer:

360

Step-by-step explanation:

So I did 5 x 6 x 6 x 2 =  360

Answer:

Right angled triangle

Step-by-step explanation:

Right angled triangle has angle of 90degree

Answer:

Step-by-step explanation:

It applies only to a right angled triangle.

Answer:

Step-by-step explanation:

City Population Density (Persons/Square Mile) 2016 Population Land A...

New York, New York 28,211 8,537,673 303

Los Angeles, California 8,484 3,976,322 469

Chicago, Illinois 11,883 2,704,958 228

View 751 more rows

Reason:

Data set A has the larger standard deviation, so it is more spread out.

Answer:

27

Step-by-step explanation:

The formula is pq/2. If you plug in your values, you will get 27.

[tex]\qquad\qquad\huge\underline{{\sf Answer}}[/tex]

Let's evaluate ~

As the denominator of both the terms is same, we can simply perform subtraction on numerator.

That is :

[tex]\qquad \sf  \dashrightarrow \: \dfrac{a - 2}{ {a}^{2} + 7a + 6 } - \dfrac{5a - 6}{ {a}^{2} + 7a + 6 } [/tex]

[tex]\qquad \sf  \dashrightarrow \: \dfrac{a - 2 - (5a - 6)}{ {a}^{2} + 7a + 6 } [/tex]

[tex]\qquad \sf  \dashrightarrow \: \dfrac{a - 2 - 5a + 6}{ {a}^{2} + 7a + 6 } [/tex]

[tex]\qquad \sf  \dashrightarrow \: \dfrac{ - 4a + 4}{ {a}^{2} + 7a + 6 } [/tex]

Answer:

-4a + 4/ a^2 + 7a +6

Answer: Heyaa!

60 Cant be Simplified so it stays the same.

Step-by-step explanation:

Nothing further can be done with this topic.

Hopefully this helps you !

- Matthew ~

Answer:

x = 5

Step-by-step explanation:

the angle bisector divides the opposite sides into segments that are proportional to the other 2 sides , that is

[tex]\frac{x}{3}[/tex] = [tex]\frac{10}{6}[/tex] ( cross- multiply )

6x = 30 ( divide both sides by 6 )

x = 5

Answer:

a

Step-by-step explanation:

x² - 3 = 2x ( subtract 2x from both sides )

x² - 2x - 3 = 0 ← in standard form

consider the factors of the constant term (- 3) which sum to give the coefficient of the x- term (- 2)

the factors are - 3 and + 1 , since

- 3 × + 1 = - 3 and - 3 + 1 = - 2 , then

x² - 2x - 3 = (x - 3)(x + 1) = 0 ← in factored form

equate each factor to zero and solve for x

x + 1 = 0 ⇒ x = - 1

x - 3 = 0 ⇒ x = 3

The three correct statements are:-

A rectangular prism is a three-dimensional rectangular object having all surfaces rectangular.

It is given in the question:-

Sarkar needs to increase the length, width, and height of the prism below by 2 inches. The original prism has a length of 3 inches, a width of 2 inches, and a height of 1 inch. A prism has a length of 3, a height of 1, and a width of 2.

The solution will be:-

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Answer:

that is reading my friend

Step-by-step explanation:

Answer:

Sidney  is shallow but busy. One common boating hazard in this city are the rocks, stingrays, and sharks. Rounf trip fair: $2000 hotel cost: 250 for 1 night and and or 2500 for 10 nights. total travel expense: $4500.

Step-by-step explanation:

Sidney is shallow but busy. One common boating hazard in this city are the rocks, stingrays, and sharks. Rounf trip fair: $2000 hotel cost: 250 for 1 night and and or 2500 for 10 nights. total travel expense: $4500. 

Answer:

1.   d

2 c

3  a

4   g

5  h

6  e

7  b

8  f

9 i

10   j

Step-by-step explanation:

First, we calculate 18 x 12

18 x 12 = 216.

To multiply a number by 1000, we add 3 zeros after it.

So, 216 x 1000 = 216000

-> 18 x 12 x 1000 = 216000.

Answer:

D. 296.00 LBS

Step-by-step explanation:

We convert both heights to inches.

1 ft = 12 in.

5 ft 3 in = 5 × 12 in. + 3 in. = 63 in.

6 ft = 6 × 12 in. = 72 in.

[tex] \dfrac{63~in.}{259~lb} = \dfrac{72~in.}{x} [/tex]

[tex] \dfrac{63x}{259} = 72~lb [/tex]

[tex] x = \dfrac{259 \times 72~lb}{63} [/tex]

[tex] x = 296~lb [/tex]

Answer: D. 296.00 LBS

Answer:

The z-score for this data is -1.5

Step-by-step explanation:

Step 1: For the specified distribution and data point,

μ = 90, σ = 10, and x = 75 (given)

Step 2: We now apply the z-score formula:

z = x − μ / σ

z = 75 - 90 / 10

z = - 15 / 10

z = -1.5

We can take it a step further:

A z-score table shows the percentage of values (usually a decimal figure) to the left of a given z-score on a standard normal distribution

percentage of value = 0.0668

The markup cost is $84 if the selling price of an item is ​$720. It is marked down by ​30%, but this sale price is still marked up from the cost of ​$420.

Markup pricing is the practice in which the price of products or commodity is determined by taking all the goods together and adds a fraction as a markup.

We have:

The selling price of an item is ​$720. It is marked down by ​30%

[tex]\rm = 720\times \dfrac{30}{100}[/tex]

Markdown = 216

Now subtract it from the selling price:

= 720-216

Sale price = 504

Now,

= 504-420

Markup cost =  $84

Thus, the markup cost is $84 if the selling price of an item is ​$720. It is marked down by ​30%, but this sale price is still marked up from the cost of ​$420.

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Answer:

A

Step-by-step explanation:

step 3 is correct

x = 1

in step 4 the student has substituted x = 1 into y instead of x, that is

3x + 2(1) = 7 ← Incorrect substitution

Should be

3(1) + 2y = 7

3 + 2y = 7 ( subtract 3 from both sides )

2y = 4 ( divide both sides by 2 )

y = 2

Answer:

A. Step 4

Step-by-step explanation:

Identifying the error

In step 4 the value of x is supposed to be substituted into the second equation however the value of x is instead substituted for y which is the first error made

Solving it correctly and explaining each step.

We have the two equations 3x + 2y = 7 and 5x - 4y = -3

It appears that the elimination method is being used as the first step consist of multiplying the first equation by 2 so that we have the two variables -4y and 4y which can cancel out in the next step so we are going to use the elimination method as well to solve it correctly.

What is the elimination method?

The elimination method is a method used to solve a system of equations. When you have two variables that have the same coefficient ( number before variable; x or y ) but different signs ( it works if they have the same too ) you can add the two equations eliminating one of the variables. Using this method will leave you with a singular variable in which you can solve

Solving it using the elimination method

Again we have the two equations 3x + 2y = 7 and 5x - 4y = -3

(step 1) Notice how the first equation has 2y which can be multiplied by 2 resulting in us getting 4y which is opposite of -4y. This sets us up exactly for using the elimination method.

Thus the first step would be too multiply the first equation by 2

3x + 2y = 7

x2

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

6x + 4y = 14

Now we have the two equations 6x + 4y = 14 and 5x - 4y = -3

(step 2)Our next step would be to add the two equations so that the variable y is eliminated

6x + 4y = 14

+ 5x - 4y = -3

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

11x 0 = 11

We're left with 11x = 11

(step 3)Our next step would be to solve for x

11x = 11

==> divide both sides by 11

x = 1

(step 4) Now that we have defined one of are variables we plug it in into one of the equations and solve for the other, this is step 4.

5x - 4y = -3

==> plug in x = 1

5(1) - 4y = -3

(step 5)==> simplify

5 - 4y = -3

(step 6) ==> subtract 5 from both sides

-4y = -8

(step 7) ==> divide both sides by -4

y = 2

The real solution would be (1,2)

Answer:

hope you can understand

Answer:

531

Step-by-step explanation:

The area of a circle can be determined by the equation: A = πr².

The "r-value" represents the radius, which is half of the diameter. Since the diameter is in cm, the area will have the unit cm².

d = diameter       r = radius       π = 3.14.....       A = area

d / 2 = r

26 / 2 = r

13 cm = r

A = πr²

A = π(13)²

A = 169π

A = 530.929.... cm²

A = 531 cm²

As you can see, the radius was determined to be 13 cm. When you plug that value into the area equation, you get 530.9 cm². Rounding to the nearest whole number would bump the 0 to 1, making the final answer 531 cm².

Answer:

28.5 in²

Step-by-step explanation:

find the area of the quarter circle:

(pi x r²)/4

100pi/4 =

25pi

To get the shaded region minus the triangle from the quarter circle:

Formula for triangle is bh/2

25 pi - Area of triangle

25 pi - (10x10)/2

25pi - 50

Which is approximately 28.5 square inches.

The volume of the fish tank having height 38 inches and diameter 26 inches = 20,165.08 [tex]inch^{3}[/tex]

The volume of a cylinder is the number of unit cubes (cubes of unit length) that can be fit into it. It is the space occupied by the cylinder as the volume of any three-dimensional shape is the space occupied by it.

The height of the fish tank = 38 inches

Diameter = 26 inches

Radius of fish tank = 13 inches

Volume of the fish tank =[tex]\pi* r^{2}*h[/tex]

                                         = 3.14 x 13 x13 x 38

                                         = 3.14 x 169 x 38

                                         = 20,165.08 [tex]inch^{3}[/tex]

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Answer:

the answer IS. -1/5 which it could be written as -0.2. NOTE: please consider the negative signs in calculating