Can someone please help me

Answer:

26

Step-by-step explanation:

STEP

1

:

4

Simplify —

1

Equation at the end of step

1

:

(24 - 4) + 6

STEP

2

:

Final result :

26

Answer:

1/4

Step-by-step explanation:

rise/run rule

there's a point at (4,1) and another at (8,2)

Answer:

52.5 cubes

Step-by-step explanation:

100-25=75

100%=70

75%=x

75 x 70=5250/100=52.5 cubes

Answer:

Briainliest here

Step-by-step explanation:

there is 70 cubes of sugar

now 25% is sold

70 x 75% = 70 x 0.75 = 52.5

(I did 75% insted of -25% because its and it actualy works!

The input (x) that satisfies the condition of being multiplied by 6 and then Subtracted by 80 to give the same value as the output is 16.

The input as "x." According to the given information, the input (x) is multiplied by 6 and then subtracted by 80, resulting in the output. In mathematical terms, this can be expressed as:

Output = (6 * x) - 80

The problem states that the input and output are the same. Therefore, we can set up the equation:

x = (6 * x) - 80

To solve for x, we'll rearrange the equation and isolate the variable:

x - 6 * x = -80

Combine like terms:

-5 * x = -80

Divide both sides by -5:

x = (-80) / (-5)

Simplifying the division:

x = 16

Hence, the input (x) that satisfies the condition of being multiplied by 6 and then subtracted by 80 to give the same value as the output is 16.

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Answer:

x = 2 or x = -8   (d)

Step-by-step explanation:

Find two factors of 16 which differ by 6. The pair 8,2 works in that 8 × 2 = 16 and 8 - 2 = 6.

Hence we find:

\(0 = x^2+6x-16 = (x+8)(x-2)\)

So x = 2 or x = -8

Alternatively, complete the square then use the difference of squares identity:

\(a^2-b^2 = (a-b)(a+b)\)

with \(a = (x+3)\) and \(b=5\) as follows:
\(0 = x^2+6x-16\)

\(=(x+3)^2-9-16\)

\(=(x+3)^2-25\)

\(=(x+3)^2-5^2\)\(=((x+3)-5)((x+3)+5)\)

\(=(x-2)(x+8)\)

Hence zeros \(x=2\) and \(x=-8\)

Subjects:

Algebra  Quadratic Equations and Functions  Comparing Methods for Solving Quadratics

Answer:

12

Step-by-step explanation:

We have 5 squared minus (3 squared plus 4). Convert this to mathematical expression:

- "5 squared" = 5²

- "minus" = -

- "3 squared" = 3²

- "plus 4" = + 4

Put it altogether:

5² - (3² + 4)

5² = 5 * 5 = 25 and 3² = 3 * 3 = 9, so:

25 - (9 + 4) = 25 - (13) = 12

The answer is thus 12.

~ an aesthetics lover

Answer:

12

Step-by-step explanation:

Math

9514 1404 393

Answer:

  x = -1, 1, 9

Step-by-step explanation:

You want x such that f(x) = g(x). Subtracting g(x) from both sides of this equation lets us rewrite it as ...

  f(x) -g(x) = 0

  x³ -9x² -(x -9) = 0

  x²(x -9) -1(x -9) = 0 . . . factor the first pair of terms

  (x² -1)(x -9) = 0 . . . . . . use the distributive property

  (x -1)(x +1)(x -9) = 0 . . . . factor the difference of squares

Values of x that make these factors zero will make f(x) = g(x):

  x = -1, 1, 9 for f(x) = g(x)

Answer:

Let Haley be represented as x

Now Mateo has 8 more coins than haley

Mateo = 8 + x

total number of coins is Mateo coins and Haley coins.

x + 8 + x

2x + 8

The computation of the equations is illustrated below.

a. x - y = 1 .... i

x + y = -9 ..... ii

Subtract the equations

-2y = 10

y = 10/-2 = -5

Since x - y = 1

x - (-5) = 1

x + 5 = 1

x = 1 - 5 = -4

b. 3x + 2y = -9

x - y = -13

Multiply equation i by 1

Multiply equation ii by 3

3x + 2y = -9

- 3x - 3y = -39

5y = 30

y = 6

Since x - y = 13

x - 6 = 13

x = 13 + 6 = 19

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The value of  80% of 150 is 120

From the question, we have the following parameters that can be used in our computation:

80% of 150

The table of value is not given

However, the expression can be evaluated without the table

Using the above as a guide, we have the following:

80% of 150 =  80% * 150

Evaluate the product

80% of 150 = 120

Hence, the value is 120

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3 inches

convert 5 feet to inches

5ft= 60in

proportion of the big tires is 60:8 or 15:2

the small tire on the toy model is unknown but the small tires on the actual model is 3ft and 9 in

convert that to inches as well

3ft and 9in= 45 inches

45÷15= 3 (this is to see how many times the x (15) increases so that we can equally increase the y value

3x2= 6

hope this helped!

9514 1404 393

Answer:

  6 in

Step-by-step explanation:

The sizes are proportional, so you have ...

  toy size / actual size = (8 in)/(5 ft) = x/(3.75 ft)

Multiply by 3.75 ft to get ...

  x = (8 in)(3.75/5) = (8 in)(0.75) = 6 in

The small tire on the toy is 6 inches in diameter.

__

3 ft 9 in = 3 9/12 ft = 3.75 ft

Answer:

$42.00

Step-by-step explanation:

We can represent the given information as a ratio:

% of original price : price

                          5% : $2.00

Then, we can multiply both sides of this ratio by 20 (or 100% / 5%) to get 100% of the original price, which IS the original price.

5%      :  $2.00

↓ × 20   ↓ × 20

100%  :  $40.00

Now that we know the original price, we can add $2.00 to get the new price.

$40.00 + $2.00 = $42.00

Answer:

D) 3 1/3 hours

Step-by-step explanation:

10÷3=3.3=3 1/3

The area of each rhombus is 8.75 \(cm^2\). The correct option is 8.75 \(cm^2.\)

To find the area of each rhombus, we can use the formula for the area of a rhombus:

Area = (diagonal1 × diagonal2) / 2

Given that the diagonals of the rhombus-shaped pieces are 3.5 centimeters and 5 centimeters, we can substitute these values into the formula:

Area = (3.5 cm × 5 cm) / 2

Area = 17.5 \(cm^2\) / 2

Area = 8.75 \(cm^2\)

Therefore, the area of each rhombus is 8.75 \(cm^2\). The correct option is 8.75 \(cm^2.\)

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The value of the angle is 120°.

The corresponding angle of a given angle refers to the angle in a congruent position in another figure. For example, if two lines intersect, the angle formed at one vertex of the intersection is called a vertex angle. The corresponding angle in the other figure is the angle in a congruent position, meaning that it has the same measure.

We are given two lines to be parallel

Hence the angle adjacent to x is 40°

Now Sum of All three angle is 180° (Angles in linear pair)

Hence we have

40 + x + 20 = 180°

x = 120°

Hence the measure of angle x is 120°

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Answer: T

Step-by-step explanation:

Answer:

19

Step-by-step explanation:

105+4d-1=180

104+4d=180

4d=76

d=19

If the "Lawyer's-Joke" is rates as the funniest, then the rating which is the top 10% of participant rating for this joke is 20 marks.

A "Normal-Distribution" is defined as a probability distribution that is symmetric, bell-shaped, and characterized by its mean and standard deviation.

First, we standardize the rating of 14.48 using the formula:

⇒ z = (x - μ) / σ;

where x is = rating of 14.48, μ is = mean rating, and σ is = standard deviation,

⇒ z = (14.48 - 14.48) / 4.38,

⇒ z = 0,

Next, we take the "z-score" that corresponds to the top 10% of the standard normal distribution.  We know that the "z-score" is approximately 1.28,

Substituting the value in formula,

We get,

⇒ z = (x - μ) / σ   ⇒ 1.28 = (x - 14.48)/4.38,

⇒ x - 14.48 = 1.28 × 4.38,

⇒ x = 20.97 ≈ 20 marks.

Therefore, the rating that marks the cutoff for the top 10% of participant ratings for this joke is approximately 20 on the scale of 1 to 21.

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Answer:

Variable

Step-by-step explanation:

A linear equation in point-slope is written as:

y - h = a*(x - k)

While the slope-intercept form is:

y = a*x + b

where a is the slope and b is the y-intercept.

We will find that the correct option is B: y = -2*x + 7/6

We start with:

y - 2/3 = -2*(x - 1/4)

And we want to rewrite this in the slope-intercept form.

First, we can distribute the product at the right:

y - 2/3 = -2*x + 2/4

Now we can add 2/3 in both sides to get:

y = -2*x + 2/4 + 2/3 = -2*x + 6/12 + 8/12

y = -2*x + 14/12

Simplifying the y-intercept we get:

y = -2*x + 7/6

Then the correct option is B: "-2*x + 7/6"

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Solution:

Note that:

Simplify the given equation to obtain your answer in slope intercept form.

14/12 simplifies to 7/6.

Option B is correct.

==========================================

Work Shown:

1 cm = 0.01 yards

66.75*(1 cm) = 66.75*(0.01 yards)

66.75 cm = 0.6675 yards

1 yard = 3 feet

0.6675*(1 yard) = 0.6675*(3 feet)

0.6675 yards = 2.0025 feet

1 foot = 12 inches

2.0025*(1 foot) = 2.0025*(12 inches)

2.0025 feet = 24.03 inches

Answer:

8 500 000

Step-by-step explanation:

since it for the hundred thousand round off, we consider the ten thousand place value if it would have an effect on the hundred thousand place value.

In our case it did not have effect because it is below 5

The property used in each equation are

a) 3x + 9y - 1 = 3(x + 3y) - 1  distributive property

b) 7x + 5y - 5y = 7x  additive inverse property

c) (x - 4)(x + 3) = 0 distributive property

d) 4x + 5x = 5x + 4x commutative  property

The distributive property states that multiplying the total of two or more addends by a number produces the same outcome as multiplying each addend separately by the number and adding the products together.

Additive inverse involves adding which involves two numbers that has opposite sign. the addition lead to zero

b) 7x + 5y - 5y = 7x

= 7x + 0

= 7x

This law basically asserts that while adding and multiplying numbers, you can rearrange the numbers in a problem without changing the solution.

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Answer:

All of them have a combined of 2,227 Stamps

Mean: 2014

Out of 23 students 19 students are the member of planetarium's frequent visitor program and 4 students are not the members.

Given,

The total number of students in a group = 23

Cost of ticket for member of planetarium's frequent visitor program = $11

Cost of ticket for the student who is not a member = $13

The total cost of the students ticket = $261

Lets take,

The number of students with membership = x

The number of students without membership = y

Total number of students, x + y = 23 -----------(1)

Now,

Total cost for the tickets, 11x + 13y = 261

Now, Multiply 13 with (1)

We get,

13x + 13y = 299

Solve for x

13x + 13y = 299 -

11x + 13y = 261

2x + 0 = 38

2x = 38

x = 38/2

x = 19

Now, put x in (1)

19 + y = 23

y = 23 - 19

y = 4

That is,

The number of students with membership is 19 and the number of students without membership is 4.

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Answer:

A = (1/4)√(4 + 11 + 14)√(-4 + 11 + 14)√(4 - 11 + 14)√(4 + 11 - 14)

A = (1/4)√29√21√7

= about 16.32 mm²

Answer:

  16.27 mm²  (see comment)

Step-by-step explanation:

You want the area of a triangle with side lengths 11 mm and 14 mm, and the angle between them 12.2°.

The area is given by the formula ...

  A = 1/2ab·sin(C)

  A = 1/2(11 mm)(14 mm)·sin(12.2°) ≈ 16.27 mm²

The area of the triangle is about 16.27 square millimeters.

__

Additional comment

If you use Heron's formula for the area from the three side lengths, you find it is about 16.32 mm². That's the trouble with over-specified geometrical figures. The result you get depends on which of the given values you use. (To get the area accurate to 4 sf, the angle needs to be specified to 4 sf: 12.24°.)

  s = (4 +11 +14)/2 = 14.5

  A = √(s(s -a)(s -b)(s -c))

  A = √(14.5(14.5 -4)(14.5 -11)(14.5 -14)) = √(14.5·10.5·3.5·0.5) = √266.4375

  A ≈ 16.32

<95141404393>

Answer:

-2v - 3x

Step-by-step explanation:

-4(2x-v) + (-6v+5x)

Expand.

-8x + 4v - 6v + 5x

Add or subtract like terms.

-6v + 4v - 8x + 5x

-2v - 3x

Answer: -2v-3x

Step-by-step explanation:

The Distance will be  5.

The distance between two points is the length of the line segment connecting the two points on the plane. The formula for finding the distance between two points is usually d=√((x2 – x1)² + (y2 – y1)²). This formula is used to find the distance between any two points on the coordinate or x-y plane.

Let point (7,5) be A and point (4,9) be B

Distance formula =

Ab  = √(x1- x2) ² + (y1 -y2) ²

Then Distance AB will be

Ab  = √(7-4) ² + (5 -9) ²

= √ 3² + 4²

= √ 9 + 16

= 5

Hence the distance  will be 5.

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The points \((7,5)\)  \((4,9)\) are separated by a distance of \(5\) units.

The distance between the two points is given by the length of the segment between them.

The Distance Formula is a helpful tool for figuring out how far apart two points are when they are arbitrarily represented on a coordinate plane as points A\((x_{1},y_{1})\) and B\((x_{2},y_{2})\).

The Pythagorean Theorem is essentially the source of the Distance Formula. Calculating the right triangle's hypotenuse's length is the fundamental purpose of the distance formula.

Use the distance formula to get the distance between two places.

\(d = \sqrt{ (x_{2} - x_{1})^{2} +(y_{2} - y_{1})^{2} }\)

In the posted query,

\((x_{1},y_{1})=(7,5)\\\\(x_{2},y_{2})=(4,9)\)

Distance formula,

\(d = \sqrt{ (x_{2} - x_{1})^{2} +(y_{2} - y_{1})^{2} }\)

\(d = \sqrt{ (4-7)^{2} +(9-5)^{2} }\)

\(d = \sqrt{ (-3)^{2} +(4)^{2} }\)

\(d = \sqrt{ 9+16 }\)

\(d = \sqrt{ 25 }\)

\(d = 5\)

Therefore, the points \((7,5)\)  \((4,9)\) are at a distance of \(5\) units.

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