Use this question to answer numbers a and b Johnny bought a table for $3200,

and a bed for $5000. Before migrating to the USA he sold the table for $4000

and the bed for $3000.


a. Did he make a profit or loss after selling the table?

____________________________________________

b. Calculate his profit or loss made after selling table

____________________________________________​

Answer:

5 + 2x = 5x + 4

-2x             -2x

5 = 3x + 4

-4          -4

1 = 3x

Divide by 3 on both sides.

1/3 = x

Answer:

4 sqrt(7)

Step-by-step explanation:

sqrt(112)

We know sqrt(a*b) = sqrt(a) sqrt(b)

Look for perfect squares

sqrt(16*7)

sqrt(16)sqrt(7)

4 sqrt(7)

Answer:

4√7

Step-by-step explanation:

√112

we know that ( a × b) = √a √ b

\( \small \sf \: \sqrt{16 \times 7} \)

√16 × √7

4√7

The required probability is
a) both are cups is 0.05

b) At least one cup is 0.19

c) One is a cup and the other is a sword is   0.06

Probability can be defined as the ratio of favorable outcomes to the total number of events.

a) for both are cups

P= 12*11/48*47
p = 0.05

b) for  At least one cup
p = 12*36/48*47
p = 0.19

c) for One is a cup and the other is a sword
p = 12*12/48*47
p = 0.06

Thus, the required probability is 0.05, 0.19, 0.06

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Answer: x=7     x=10

Step-by-step explanation:

\(x^2+70=17x\\x^2+70-17x=17x-17x\\x^2-17x+70=0\\x^2-7x-10x+70=0\\x(x-7)-10(x-7)=\\(x-7)(x-10)=0\\x-7=0\\x=7\\x-10=0\\x=10\)

Answer:

x = 7, x = 10

Step-by-step explanation:

x² + 70 = 17x ( subtract 17x from both sides )

x² - 17x + 70 = 0 ← in standard form

consider the factors of the constant term (+ 70) which sum to give the coefficient of the x- term (- 17)

the factors are - 10 and - 7 , since

- 10 × - 7 = + 70 and - 10 - 7 = - 17 , then

(x - 10)(x - 7) = 0 ← in factored form

equate each factor to zero and solve for x

x - 7 = 0 ⇒ x = 7

x - 10 = 0 ⇒ x = 10

The cost of making the chest with these dimensions is approximately $3.83.

Let's start by finding an expression for the cost of making the chest in terms of its dimensions. The cost of the oak top and sides is given by:

cost of oak = 2lw + 2lh

where l is the length and w is the width of the chest, and h is the height (which we don't know yet). The cost of the pine bottom is given by:

cost of pine = lw

The total cost of making the chest is the sum of these two costs:

total cost = cost of oak + cost of pine

= 2lw + 2lh + lw

We want to minimize this cost subject to the constraint that the volume of the chest is 0.25 cubic metres. The volume of a rectangular box is given by:

volume = length × width × height

= lwh

Since the volume is given as 0.25 cubic metres, we have:

lwh = 0.25

We also know that the length is twice the width, so we can write:

l = 2w

Substituting this into the expression for volume, we get:

\(2w^{2h} = 0.25\)

Solving for h, we get:

\(h = 0.125/w^2\)

Substituting this expression for h into the expression for the total cost, we get:

total cost = \(2lw + 2(0.125/w^2)w + lw\)

= 2lw + 0.25/w

To minimize this cost, we can take the derivative with respect to w and set it equal to zero:

d(total cost)/dw =\(2l - 0.25/w^2 = 0\)

Solving for w, we get:

w = \(\sqrt{0.125/l)}\)

Substituting this value for w back into the expression for h, we get:

h = \(0.125/w^2 = 8l\)

Therefore, the dimensions that will minimize the cost of making the chest are:

length = 2w = \(2\sqrt{(0.125/l)}\)

width = w =\(\sqrt{0.125/l)}\)

height = h = 8

To find the cost of making the chest, we can substitute these values into the expression for the total cost:

total cost = 2lw + 0.25/w

= \(2\sqrt{(0.125/l} ) \times \sqrt{0.125/l)} \times 2 + 0.25/\sqrt{(0.125/l)}\)

= 4 × 0.125 + 0.25 × sqrt(l/0.125)

= 0.5 + 2\(\sqrt{2\) ≈ 3.83

Therefore, the cost of making the chest with these dimensions is approximately $3.83.

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Answer:

-15k - 60 (The second one)

Step-by-step explanation:

-15 ( k + 4) is the question.

-15 x k = -15k

- and + is -

and 15 x 4 = 60.

So, the answer is -15k - 60

Answer:

1800 grams

Step-by-step explanation:

1.8 × 1000 = 1800

To convert kg to g you have to multiply the mass value by 1000

hope it helps!

By Euclidean geometry, the measure of the missing angle, the other acute angle, of the right triangle is equal to 47°.

Right triangles are triangles of which one of its angles is a right angle and the other two angles are acute angles. According to the statement, the measure of an acute angle of the right triangle is equal to 43°.

By Euclidean geometry, the sum of the internal angles in any triangle equals a measure of 180°. Then, the measure of the missing angle is:

90° + α + β = 180°

If we know that α = 43°, then the value of β is:

α + β = 90°

43° + β = 90°

β = 47°

The measure of the missing angle is equal to 47°.

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The original cost of the tablet is $70.89 in the given algebraic equation.

A mathematical claim containing two equated algebraic expressions is known as an algebraic equation. When P and Q are polynomials, an algebraic equation has the general form P = 0 or P = Q. The term "multivariate equation" refers to an algebraic equation that has more than one variable.

Univariate equations are algebraic equations that only have one variable. Equations in algebra are balanced by definition. Due to this, the right and left sides of the equation will be equal.

Let the original cost be  x

then

15/100 = 24.99.x

x =  166.6

237.49 - 166.6

= $70.89

Thus, the original cost of the tablet is $70.89 in the given algebraic equations.

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Full question?

Lucas bought a tablet that was on sale at a 15% discount on your supra case for $24.99 which is been a total of $237.49. Write an equation to find the original cost of the tablet?

Answer:

4/13 or .308

Step-by-step explanation:

Answer:

y-3=-1(x+6)

Step-by-step explanation:

I gotchu

brainliest tho?

Answer:

A. One solution

Step-by-step explanation:

We are given a system of equations and are asked to find whether it has a certain solution.

y = x + 4

2x + 2 = y

Since both equations end with y, we can substitute them from back to back.

x + 4 = 2x + 2

Subtract 2 from both sides :

x + 2 = 2x

Subtract x from both sides :

x = 2

Solve for y now that you have x by subtituting x with the value.

(2) + 4 = y

2(2) + 2 = y

6 = y

6 = y

Therefore this means that the system of equations is one solution because it intersects at one point (2, 6).

Check the graph.

Its -14  :>

Randoml spam letters bc it asked me to

Answer:

D

Step-by-step explanation:

C is the point - 4

the opposite of a number is its negative , that is

- (- 4) = + 4

the opposite of point C is therefore 4

The equation of a line perpendicular to line y = 8/3x-5 in slope-intercept form that contains point (-2, -2) is y = -3x/8 - 11/4.

Mathematically, the point-slope form of a straight line can be calculated by using this mathematical expression:

y - y₁ = m(x - x₁)

Where:

In Mathematics, a condition that must be met for two lines to be perpendicular is given by:

m₁ × m₂ = -1

8/3 × m₂ = -1

m₂ = -3/8.

At data point (-2, -2), a linear equation of this line can be calculated in point-slope form as follows:

y - (-2) = -3/8(x - (-2))

y + 2 = -3/8(x + 2)

y = -3x/8 - 3/4 - 2

y = -3x/8 - 11/4

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The correct answer is option a) Descriptive statistics; inferential statistics

a. Statistics with descriptions; Inferential statistics is the branch of statistics that deals with organizing, summarizing, and presenting data in a meaningful manner. Descriptive statistics are examples of this. It includes graphs or charts that provide a comprehensive overview of the data as well as measures like the mean, median, mode, and standard deviation.

On the other hand, inferential statistics is a subfield of statistics that uses a sample to make inferences or conclusions about a population. It makes predictions or generalizations about the larger population by utilizing sampling methods and probability theory.

Therefore, a. descriptive statistics is the correct response; statistical inference.

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We can see here that:

A cube is a three-dimensional geometric shape that has six square faces, all of which are congruent (equal in size) and perpendicular to each other. It is a special type of rectangular prism where all edges have the same length, and all angles are right angles (90 degrees).

Cubes are commonly encountered in everyday life, such as dice, boxes, and Rubik's Cube puzzles. They have precise and uniform geometry, making them useful in various mathematical and engineering applications.

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Answer:

I think the answer is O

Answer:

The answer is 4186. 67

Step-by-step explanation:

\(v = \frac{4}{3} \times 3.14 \times {(10)}^{3} \\ v = 4186.66666 \\ v = 4186.67\)

I am a math teacher If you need any explanation you can communicate with me on Whats on this number 01557831028

Answer:

C. \(2.245 * 10^6\)

Step-by-step explanation:

(2.2)(10^6) + (4.5)(10^4) = 2245000

Simplify to match answer choices.

Step-by-step explanation:

again option D x = 10, y= 3

is the correct answer of this question.

plz mark my answer as brainlist.if you find it useful.

hope this will be helpful to you.

Answer:

x = 10

y = 7

Step-by-step explanation:

4x-2 = x+28

4x-x = 28+2

3x = 30

x = 30÷3

x = 10

4y-7 = y+14

4y-y = 14+7

3y = 21

y = 21÷3

y = 7

The ratios, 1 : 4 and 2 :6 are not equivalent.

Ratio shows the relationship that exist between two or more numbers. Ratio is used to compare two or more numbers. It shows the number of times that one value is contained within other value(s).

In order to determine if the ratios are equivalent, express 2 : 6 in its simplest form. To do this, divide 2 and 6 by 2, a common  multiple of both numbers.

2 :6 in its simplest form is 1 : 3

Since, 1 : 3 is different from 1 : 4, the ratios are not equivalent.

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Okay its 797,619,000,132

They all have different place values

Answer:

Step-by-step explanation:

origin, multiply the coordinates of each vertex by the scale factor k. When k > 1, the dilation is an enlargement. When k > 0 and k < 1, the dilation is a reduction. In a dilation, the original figure and its image are similar.

Step-by-step explanation:

The area of circle with radius 4cm is,

area of circle = π r *r = 3.14 * 4 * 4

= approx 50.27

The area of circle with radius 2cm is,

area of circle = π * r * r = 3.14 * 2 * 2

= approx 12.57

The circles are concentric means they have a common Centre, so,

Area between the two circles = area of bigger circle - area of smaller circle

= 50.27 - 12.57

= 37. 7 sq. cm

Answer:

Step-by-step explanation:

Equation of a line is y = mx + c

where

m is the slope

c is the y intercept

To find the equation of the parallel line we must first find the slope of the original line

From the question the original line is

y = 2/3x - 7

Comparing with the general equation above

Slope = 2/3

Since the lines are parallel their slope are also the same

Slope of parallel line = 2/3

So the equation of the line using point

(12 , 2 ) and slope 2/3 is

\(y - 2 = \frac{2}{3} (x - 12) \\ y - 2 = \frac{2}{3} x - 8 \\ y = \frac{2}{3} x - 8 + 2\)

We have the final answer as

\(y = \frac{2}{3} x - 6 \\ \)

Hope this helps you

Answer:

91. 60m in 12 seconds

Step-by-step explanation:

91. 5m/s*12=60m

just ask you parents please but it's not right just to ask and be given

Answer:

an obtuse angle are angles that are greater than 90 degrees

Step-by-step explanation:

an obtuse angle are angles that are greater than 90 degrees

Answer:

1) 1,3,5,7

2) I can't really see it, it is blurry. Im sorry

Step-by-step explanation:

Answer:

B is the answer.

Step-by-step explanation:

took test. 100% sure.

Answer:

Step-by-step explanation:

bbbbbbbbbbbbb