Pls help with question 7

Answer:

ur equation is : y = - 0.6x + 346 my sister help someone with this same answer but if its wrong sorry

Step-by-step explanation:

Answer:

−3x^2+2x /x−2

Step-by-step explanation:

4x−9x^3/ 3x^2−4x−4

=  −9x^3+4x /3x^2−4x−4

=  x(−3x+2)(3x+2) /(3x+2)(x−2)

=  −3x^2+2x /x−2

Answer:

CD = 48

Step-by-step explanation:

Find the value of x using the two equations

9x - 15 = 7x - 1

9(7) - 15 = 7(7) - 1

63 - 15 = 49 - 1

48 = 48

Answer: x = 7

Then get the result of both equations

CD = 48

The length of CD is 48 units.

Isosceles triangles are those triangles which has the length of two sides or angles are equal to each other.

Given triangle ABC is an isosceles triangle since the length of sides AB and BC are given to be equal.

BD is the altitude of the triangle from the vertex B.

We know that, altitude of an isosceles triangle from the non equal angle bisect the opposite side, which is base.

So, AC is bisected at D.

AD = CD

9x - 15 = 7x - 1

Solving,

9x - 7x = -1 + 15

2x = 14

x = 7

Length of CD = 7x - 1 = 49 - 1 = 48

Hence 48 units is the length of CD.

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The triangle C is reduced by a scale factor of 0.36 to form triangle D.

Given,

There are two triangles are C and D.

All sides of C are 35 in, 25 in, 45 in and all sides of D are 7 in, 9 in,5 in.

To find the scale factor by which triangle C is dilated or reduced to form triangle D, we need to compare the corresponding sides of both triangles.

The corresponding sides of triangle C and D are:

35 in : 7 in (longest sides of each triangle)

25 in : 9 in

45 in : 5 in

To find the scale factor, we can choose any pair of corresponding sides and divide the length of the side in triangle D by the length of the corresponding side in triangle C.

Let's choose the second pair of corresponding sides, which are 25 in and 9 in.

scale factor = length of corresponding side in triangle D / length of corresponding side in triangle C

scale factor = \( \frac{9 \: in}{25 \: in} \)

scale factor = 0.36

Therefore, triangle C is reduced by a scale factor of 0.36 to form triangle D.

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Answer:

16/20, (20-x)/20

Step-by-step explanation:

Qasim got 4 wrong, so 4 points off. 20-4, is 16, meaning that he got a score of 16/20 (80%).

If he got x questions wrong, since each question is worth 1 point, he would get 20-x points, which is a score of (20-x)/20.

The test score for Qasim will be 80% for answering 16 questions right.

The percentage is defined as representing any number with respect to 100. It is denoted by the sign %. The percentage stands for "out of 100." Imagine any measurement or object being divided into 100 equal bits.

Given that Qasim is taking a multiple-choice test with a total of 20 points available. Each question is worth exactly 1 point.

The test score will be calculated as,

Test score = [ ( Total questions - wrong answers ) / Total questions] x 100

Test score =  [ ( 20 - 4 ) / 20 ] x 100

Test score = 0.80 x 100

Test score = 80%

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Answer:

Rational number . . . . . .

Answer:

Y=2

Step-by-step explanation:

Answer:

y=2

Step-by-step explanation:

6y - 2y - 2 = 3y - 6 + 6

4y - 2 =3y

4y - 3y +2

y=2

Answer:

For this problem, multiply these fractions.

First, make each one an improper fraction: 2 4/5 is the same as 14/5 and 2 3/7 is the same as 17/7.

Now, 14/5 times 17/7 yields 238/35 which reduces to 34/5. This may be expressed also as the mixed fraction 6 4/5.

So, the shipment contains 6 4/5 tons of sugar. (This is also equal to 13,600 pounds of sugar.)

Answer:

$1.50 per pound

Step-by-step explanation:

got same question and got it right.

The cost per pound of apples is given as $1.50 per pound.

proportionality is defined as between two or more sets of values, and how these values are related to each other in the sense are they directly proportional or inversely proportional to each other.

From the table,

Let the cost of the apples is directly proportional to the pound of x apples,
y = kx

Where k represents the cost of each pound of apply,
From the table consider an ordered pair,
x = 2, y = 3
Now,
3 = 2k
k = 3 / 2
k = 1.5

Thus, the cost per pound of apples is given as $1.50 per pound.

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the sum of all the angles in a triangle is 180°

65°+20°+x = 180°

85°+x = 180°

x = 95°

hope it helps...!!!

Answer:

no

Step-by-step explanation:

i just know

A graph which could be used to find the distance between the points (−13, −3) and (9, 11) include the following: A. graph A.

In Mathematics and Geometry, the distance between two (2) points that are on a coordinate plane can be calculated by using the following mathematical equation:

Distance = √[(x₂ - x₁)² + (y₂ - y₁)²]

Where:

x and y represent the data points (coordinates) on a cartesian coordinate.

By substituting the given points into the distance formula, we have the following;

Distance = √[(9 + 13)² + (11 + 3)²]

Distance = √[(21)² + (14)²]

Distance = √[441 + 196]

Distance = √637 units.

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Missing information:

The question is incomplete and the complete question is shown in the attached picture.

Answer:

The answer to the question provided is 5 units.

Answer: Yes.

Step-by-step explanation:

Answer: Yes, it is positive

The  examples that would constitute a discrete random variable are;

I. Total number of points scored in a football game

III. Number of near collisions of aircraft in a year

A discrete random variable has only a countable number of different values that it can assume. Usually, but not always, discrete random variables are counts. A random variable is discrete if it can only take a finite number of different values. A variable whose value is determined by counting is referred to as a discrete variable.

A continuous variable is one whose value may be determined through measurement. A random variable is a variable whose value is the resultant number of an unpredictable event.

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Here is how to construct a cumulative percentage distribution with the given stem-and-leaf data: First, you will need to group the data into classes.

Using the given stem-and-leaf data, the classes can be as follows: 9.0 but less than 10.0: 4, 7, 9110.0 but less than     11.0: 2, 2, 3, 8, 1011.0 but less than 12.0: 1, 3, 5, 5, 6, 6, 7. Next, calculate the cumulative frequencies for each class. The cumulative frequency for a class is the sum of the frequencies for that class and all previous classes.

In this case, the cumulative frequencies are:9.0 but less than 10.0: 4 + 7 + 9 = 2010.0 but less than 11.0: 2 + 2 + 3 +  8 + 10 = 2511.0 but less than 12.0: 1 + 3 + 5 + 5 + 6 + 6 + 7 = 33

Finally, calculate the cumulative percentage for each class. The cumulative percentage for a class is the cumulative frequency for that class divided by the total number of data points, multiplied by 100%.

In this case, the total number of data points is 20 + 5 + 7 = 32.

So, the cumulative percentages are:9.0 but less than 10.0: (20/32) x 100% = 62.5%

10.0 but less than 11.0: (25/32) x 100% = 78.125%1

1.0 but less than 12.0: (33/32) x 100% = 100%

Note that the last cumulative percentage is greater than 100% because it includes all of the data.

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Answer:

if you want the volume of the outer cube with the other cube in it, it would be 48. if you want it without the cube its 120. the inside cube is 72.

Step-by-step explanation:

Answer:

48 mm³

Step-by-step explanation:

Outer prism:

5 mm by 4 mm by 6 mm

V = LWH = 5 × 4 × 6 mm³ = 120 mm³

Inner prism:

4 mm by 3 mm by 6 mm

V = LWH = 4 × 3 × 6 mm³ = 72 mm³

Difference:

120 mm³ - 72 mm³ = 48 mm³

C. The two quantities are equal.  We can see that both Quantity A and Quantity B have the same value of 1. Hence, the two quantities are equal.

Since we know that the length of each side of triangle T is 6 times the length of each side of triangle X, we can set up the following equations:
Length of side of T = 6 * Length of side of X
To compare the ratios of the sides, we can use the following formula:
Ratio of one side to another = Length of one side / Length of another side
For Quantity A, we can choose any two sides of triangle T and find their ratio. Let's choose the two adjacent sides:

To further explain the concept, let's consider the properties of equilateral triangles.
An equilateral triangle is a special type of triangle where all three sides are equal in length. Hence, if we know the length of one side, we automatically know the length of all three sides.
Now, coming back to the given question, we are told that the length of each side of triangle T is 6 times the length of each side of triangle X. This means that if the length of one side of triangle X is 'a', then the length of one side of triangle T is 6 times 'a', which is '6a'.
Hence, we can write:
Length of side of T = 6a
Length of side of X = a
Now, let's compare the ratios of the sides.
For Quantity A, we need to find the ratio of one side of triangle T to another side of T. Let's choose the two adjacent sides:
Ratio of adjacent sides of T = Length of side of T / Length of adjacent side of T
Since all three sides of an equilateral triangle are equal, the adjacent side of T is also 6a. Hence, we get:
Ratio of adjacent sides of T = (6a) / (6a) = 1
For Quantity B, we need to find the ratio of one side of triangle X to another side of X. Let's again choose the two adjacent sides:
Ratio of adjacent sides of X = Length of side of X / Length of adjacent side of X
Since all three sides of an equilateral triangle are equal, the adjacent side of X is also 'a'.

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Answer:

Step-by-step explanation:

If we subtract 7 from both sides, we get -2 on the right.  This is not possible, since absolute values are always 0 or greater.

The common ration between the sum of a certain infinite geometric series is 2. the sum of the squares of all the terms is 3 is ( r,a) = ( 1/7, 12/7)

That means { a/ 1-r} = 2

a^2/1-r^2 = 3

2a/ 1+r = 3

2(2-2r)/ 1+r = 3

4-4r= 3+ 3r

7r + 1

r= 1/7

2a/ 8/7 = 3

7a= 12

a= 12/7

so( r,a) = ( 1/7, 12/7)

What is infinite geometric series?

An infinite geometric series is the sum of an infinite geometric sequence. This series would have no last term. The general form of the infinite geometric series is a1 + a1r + a1r2 + a1r3+…, where a1 is the first term and r is the common ratio.

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Answer:

The answer is 60

Step-by-step explanation:

Solution:

Complete the ratio

\( \frac{4}{?} = \frac{1}{15} \\ \)

Hope you understand

Answer: 20

Step-by-step explanation:

32 divided by 8 = 4

4 x 3 = 12

32 - 12 = 20

This was how I learned to multiply fractions with my teacher so sorry if you don't understand :/

I Hope This Helps!

The total number of cookies that were not burnt are; 20

The unitary method is a method for solving a problem by the first value of a single unit and then finding the value by multiplying the single value.

We have been given that Susan made 32 cookies. If 3/8 of the cookies

burnt in the oven, then we need to find the cookies that were not burnt.

Therefore we have to multiply the 32 cookies by  3/8 of the cookies

burnt in the oven.

Thus,

32 x 3/8 =4 x 3

= 12

Now the cookies that were not burnt are;

32 - 12 = 20

Hence, the total number of cookies that were not burnt are; 20

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Answer:

It is D, I think it’s because the letters need to be around in the same order

The angle corresponding to each other of different triangle are equal.

"Similar triangles are triangles that have the same shape, but their sizes may vary. All equilateral triangles, squares of any side lengths are examples of similar objects. In other words, if two triangles are similar, then their corresponding angles are congruent and corresponding sides are in equal proportion".

Here given,

\(\triangle JGR\) is similar to triangle \(\triangle MST\)

So, from the definition of similar triangle ,

angle J ≅ angle M

angle G ≅ angle S

angle R ≅ angle T

Hence, option D is correct.

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The smallest length of fencing required to enclose the rectangular area of 12000 square feet and divide it in half with a fence down the middle parallel to one side is\($380\sqrt{2}$\) feet.

Let the length of the rectangular area be \($l$\) and the width be \($w$\). Then, we have the equation:

\($lw = 12000$\)

We want to divide the region in half with a fence down the middle parallel to one side, so we will need two equal rectangular sections with area:

\($(l/2)w = 6000$\)

The total length of fencing required will be the perimeter of the rectangular region, plus the length of the fence down the middle. Therefore, we have:

\($\text{Total length of fencing} = 2l + 2w + l = 3l + 2w$\)

Substituting\($w = 12000/l$\), we get:

\($\text{Total length of fencing} = 3l + 24000/l$\)

To find the - of fencing required, we can take the derivative of this expression with respect to \($l$\), set it equal to zero, and solve for \(l$:\)

\($\frac{d}{dl} (3l + 24000/l) = 3 - \frac{24000}{l^2} = 0$\)

Solving for \($l$\), we get:

\(l = \sqrt{8000} = 40\sqrt{2}$ feet\)

Substituting this value of \($l$\) back into the expression for the total length of fencing, we get:

\($\text{Total length of fencing} = 3(40\sqrt{2}) + 2(12000/40\sqrt{2}) = 80\sqrt{2} + 300\sqrt{2} = 380\sqrt{2}$ feet.\)

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the volume of cylinder is 3.14 r^2×h

Answer: c

Step-by-step explanation:

Answer:

25(1) + 25(4)

Step-by-step explanation:

25 is the greatest common factor of both 25 and 100.

If you distribute it out, 25 x 1 = 25 and 25 x 4 = 100

Answer:

Ok:

Step-by-step explanation:

Domain: {x| x ϵ ℝ}

Range: {y| y ≤ 3}

ϵ - means 'belongs to the set of'

and ℝ means 'all real numbers'

What it mens is that x is defined at every x value.

Using proportions, the estimate of the per capita consumption from 2011 was 29.25 gallons.

A proportion is a fraction of the total amount, the measures are related using a rule of three.

The amount in 2012 was an increase of 5.3% from 2011,

105.3% = 1.053 of x,

The consumption per capita was 30.8 gallons,

hence:

1.053x = 30.8

x = 30.8/1.053

x = 29.25 gallons.

(ii) The sales in 2011

= 9.1 billion gallons in 2011.

(iii) The per capita consumption from 2011

= 9.1 / 11.8

= 0.77 billion

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Answer:

speed=distance/time

so..

8=distance/15.

120km= distance

Step-by-step explanation:

I believe you just preferred the answer but not how i got it..But even so. Wish you luck.

Answer: To show that the number 52.470817081708 is rational, we need to express it as a ratio of two integers.

Let x = 52.470817081708. We can write x as a sum of its integer part and fractional part:

x = 52 + 0.470817081708

To convert the fractional part to a fraction, we can multiply both numerator and denominator by a power of 10 that will eliminate the decimal point. In this case, we can multiply by 10^12:

0.470817081708 = 470817081708 / 10^12

Therefore, we can write:

x = 52 + 470817081708 / 10^12

We can simplify the fraction by dividing both numerator and denominator by their greatest common divisor:

x = 52 + 163717 / 3125000

So we have expressed x as a ratio of two integers, 163717 and 3125000. Therefore, 52.470817081708 is a rational number.

The number 52.470817081708 is rational because it can be expressed as a ratio of two integers: 52470817081708

To show that 52.470817081708 is rational, we need to write it as a ratio of two integers.

First, we can see that the number has a repeating pattern of digits after the decimal point, which tells us that it can be expressed as a fraction. To do this, we'll count the number of decimal places in the repeating pattern, which is 12 in this case.

Next, we'll use the following formula to convert the repeating decimal to a fraction:

x = a + b/(10^n - 1)

Where:

- x is the repeating decimal
- a is the non-repeating part of the decimal (in this case, it's just the whole number 52)
- b is the repeating part of the decimal (in this case, it's the digits 470817081708)
- n is the number of digits in the repeating pattern (in this case, it's 12)

So plugging in our values, we get:

52.470817081708 = 52 + 470817081708/(10^12 - 1)

Simplifying the denominator, we get:

52.470817081708 = 52 + 470817081708/999999999999

To write this as a ratio of two integers, we'll simplify the fraction:

52.470817081708 = 52 + 235408540854/499999999999

So the number 52.470817081708 can be written as the fraction 52 + 235408540854/499999999999, which is a ratio of two integers. Therefore, we have shown that 52.470817081708 is rational.

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