30 times 40 equals whatttt

Answer: r = -39

Step-by-step explanation:

Starting with the given equation:

4x² - 30 = 34

Adding 30 to both sides:

4x² = 64

Dividing both sides by 4:

x² = 16

Taking the square root of both sides:

x = ±4

Therefore, the solutions to the equation are x = 4 and x = -4.

Checking each option:

A. x = -√√8 is not a solution.

B. x = 4 is a solution.

C. x = -8 is not a solution.

D. x = √√√8 is not a solution.

E. x = -4 is a solution.

F. x = 8 is not a solution.

Therefore, the solutions to the equation are x = 4 and x = -4, which are options B and E.

Answer:

Each pencil was 3$

Step-by-step explanation:

the total amount spent is $29 and a magazine only cost $5 and she bought it pencils which brought the total to $29 the question is how much was each pencil.

The amount she spent on pencil is the total amount - $5 which is $29 - $5 which is $24 and we are told that she bought a total number of 8 pencils. the cost of each pencil will be 24/8 which is $3

Answer:

48.83

Step-by-step explanation

Answer:

180

Step-by-step explanation:

Answer:

180

Step-by-step explanation:

Answer: Perimeter of given square:40,Area of given square:100

Perimeter of Dilated square:200

Area of Dilated square: 2500

Step-by-step explanation:

We get the translation rule as (x-4, y+5) for triangle ABC.

We are given a triangle:

ABC where

A = (3, -1)

B = (7, -5)

C = (-2, -2)

And, we are also given the translation of the triangle as A'B'C'

where

A' = (-1, 4)

B' = (3, 0)

C' = (-6, 3)

We need to tell the translation rule for it,

For the x coordinate, we can see that:

- 1 - 3 = - 4

3 - 7 = - 4

- 6 - (-2) = -4

So, the rule for x coordinate will be:

x - 4

Now for y coordinate:

4 - (-1) = 5

0 - (-5) = 5

3 - (-2) = 5

So, the rule for y coordinate will be:

y + 5

Translation rule then becomes:

(x-4, y+5)

Therefore, we get the translation rule as (x-4, y+5) for triangle ABC.

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Answer:

4. rise

match the following definition with the correct term:

the vertical distance between two points on a line

1. run

2. rate of run

3. slope

4. rise

Answer:

5p+4>14 (A)

Step-by-step explanation:

Open dot means that the value is not included.

Answer: A is the Answer hope this helps

Step-by-step explanation:

Answer: (D= 87.5 kilometers per hour)

Step-by-step explanation: First, divide 200 by 2, which equals to 100. Next, divide 25 by 2, which is 12.5. Lastly, subtract 100 minus 12.5, which equals 87.5. You should end up with a result of (D= 87.5 kilometers per hour).

The value of the sample statistic is used to estimate the value of the population parameter.

The population parameter is found by using the population statistic to predict the population estimate.

This is because the sample statistic is based on the sample produced from the population so it can therefore be used to find out more on the population.

Options for this question are:

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Answer:

x=6 or x=0

Step-by-step explanation:

\(5 |x - 3| = 15\)

\( |x - 3| = 3\)

\(x - 3 = 3\)

or

\(x - 3 = - 3\)

Answer:

Well, first. A trip of 100 miles in 1/6 less than the 600 mile trip. So, we also know that a 600 mile trip uses 60 gallons. In order to find the amount used in a 100 mile trip, just divide 60 gallons by 6!

60 / 6 = 10

Which means, that in a trip of 100 miles. 10 gallons of fuel are used!

The information quality of the survey is not reliable for understanding the current happiness level in the state.

The information quality for this survey is likely outdated and not

representative of the current state of Louisiana, particularly after the

devastating impact of Hurricane Katrina in 2005.

The survey was conducted before the hurricane, which significantly

affected the region, including the mental health and well-being of its

residents.

Thus, the survey's results may not accurately reflect the current level of

happiness or satisfaction among Louisiana residents.

Therefore, the information quality of the survey is not reliable for

understanding the current happiness level in the state.

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Answer:

x-12=19

x=19+12

X=31........

Answer:31

Step-by-step explanation:

X-12=19. Add 12 to both sides x=31

The length of the arc subtended by the angle's rays is 0.02 times the radius of the circle

To find the length of the arc subtended by the angle's rays, we need to know the angle measure. Since we know that 1/360th of the circumference is 0.04 cm long, we can find the circumference by multiplying 0.04 cm by 360, which gives us 14.4 cm.

Now, we need to find the angle measure. Since the circle is centered at the vertex of the angle, the angle measures half the arc it subtends. Thus, we can find the angle measure by dividing the circumference by 2 and then multiplying by 1/360.

Angle measure = (14.4/2) x (1/360) = 0.02 radians

Finally, we can find the length of the arc subtended by the angle's rays by multiplying the angle measure by the radius of the circle.

Length of arc = 0.02 x radius


The length of the arc subtended by the angle's rays is 0.02 times the radius of the circle. The given information of 1/360th of the circumference being 0.04 cm long helped us find the circumference and subsequently the angle measure.

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Answer:

x= 6.02953586.......

Step-by-step explanation:

hi;augh4 vhaugawhfdb

Step-by-step explanation:

Answer:The cordinates of A and B are (-3.8, 5.2) and (7, -2).

Step-by-step explanation:From (1), we get x = (8 - 3y) / 2 ––(3)

Substitute (3) into (2),

2 [(8 - 3y) / 2]² + 3y² = 110

(8 - 3y)² + 3y² = 220

15y² - 48y - 156 = 0

Therefore y = 5.2, then x = (8 - 3×5.2) / 2 = -3.8

OR y = -2, then x = [8 - 3×(-2)] / 2 = 7

Answer:

The coordinates are A. (-3.8, 5.2) and B. (7, -2).

Step-by-step explanation:

At A and B the coordinates satisfy both equations so we solve simultaneously using substitution:

2x^2 + 3y^2 = 110

2x + 3y = 8

From the above equation

x = (8 - 3y)/2

So substituting for x in the first equation:

2 [(8-3y)/2]^2 + 3y^2 = 110

(8-3y)^2 / 2 + 3y^2 = 110

Multiply through by 2:

(8 - 3y)^2 + 6y^2 = 220

64 + 9y^2 - 48y + 6y^2 - 220 = 0

15y^2 - 48y - 156 = 0

3(5y^2 - 16y - 52) = 0

(5y - 26)(y + 2) = 0

y = 26/5, 2

y = 5.2,  -2.

So substituting in 2x + 3y = 8

When y = -2:

2x - 6 = 8

2x = 14

x = 7.

When y = 5.2

2x + 3(5.2) = 8

2x = 8 - 15.6 = -7.6

x = -3.8.

Although part of your question is missing, you might be referring to this complete question "Translate the sum of m and 2.33 multiplied by s is 77.77 into an algebraic equation. Do not solve the equation."

Translated equation is m + 2.33s = 77.77

An algebraic equation is the equality of two expressions formulated by applying a set of variables such as addition, subtraction, multiplication, division, raise to power, etc. The phrase " the sum of a and b" into an algebraic expression is determined as a+b. It deals with symbols and these symbols deal with each other through variants.

Hence, the equation translated is a linear equation of algebraic equations.  m+ 2.33s = 77.77

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Hi there, here's your answer.

Given:

A circle with center O.

A, B, C and D lie on the circumference of the circle.

AC is the diameter of the circle.

∠DCA = 33° and ∠BCA = 31°

To find:

∠DAB

Solution:

Since AC is a diameter, ∠CDA and ∠CBA will be equal to 90° (Angles in a semi-circle)

Now, ∠BCD = ∠DCA + ∠BCA

∴ ∠BCD = 33° + 31° = 64°

Now, ∠BCD + ∠CDA + ∠DAB + ∠ ABC = 360° (Angle-sum property of a quadrilateral)

Substituting the values of the angles:

64° + 90° + 90° + ∠DAB = 360°

Or

244° + ∠DAB = 360°

Therefore ∠DAB = 360° - 244° = 116°

Hope it helps!

The simplest form of the expression, lim ₓ₋₂₂ − x x₂ − 4 is 0.

The given limit is: limₓ₋₂ (2-x)/(x₂ - 4)

We can simplify the expression by first factoring the denominator. The denominator is equal to (x - 2)(x + 2), so we can rewrite the expression as:

limₓ₋₂ (2-x)/((x - 2)(x + 2))

Next, we need to use the rules of limits to evaluate the expression. As x approaches 2, the term (2-x) will approach 0, while the term (x - 2)(x + 2) will approach 0. As a result, the entire expression will approach 0, so the limit of the expression is 0.

To further simplify the expression, we can rewrite it as:

limₓ₋₂ 0/((x - 2)(x + 2))

This is the simplest form of the expression, so the final answer is 0.

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Answer:

Step-by-step explanation:

Write the formula for the nth term of the sequence as a function: f(n)=n(n+7).

So now our goal is to compute f(11). To do that, we substitute x=11 in our function, meaning that the 11th term of the sequence = 11*18, which equals 198.

X, the number of correct guesses out of all the attempts for members in the group, follows a binomial distribution

The theoretical probability of one correct guess is the total number of correct guesses divided by the total number of guesses, which in this case is 11/15 or 0.73.

X represents the number of correct guesses out of all the attempts for members in the group. Since each member's guess is independent of the others, and each guess has the same probability of being correct, X follows a binomial distribution.

The binomial distribution is characterized by two parameters: the number of trials (n) and the probability of success on each trial (p). In this case, n is the total number of guesses, which is 15, and p is the theoretical probability of one correct guess, which is 0.73.

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The given question is incomplete, the complete question is:

Theoretical Probability of one correct guess # of Correct Total # of Group Member Guesses Guesses Jay 3 Amanda 4 Nicholas 4 Overall 11 5 5 15 2.) Let X represent the number of correct guesses out of all the attempts for members in your group. What kind of distribution does X have? Justify your response, indicating values for any of the variables that describe the distribution.

Answer:

81p^28

Step-by-step explanation:

3^4=81

7 times 4 =28

Answer:

A=\(26cm^2\)

Step-by-step explanation:

\(h=2.5in(\frac{2.54cm}{1in})=6.35cm\\b=3.25in(\frac{2.54cm}{1in})=8.255cm\\A=\frac{1}{2}bh\\A=\frac{1}{2}(6.35cm)(8.255cm)\\A=26.21cm^2\)

Answer:

It's actually an  enlargement  of the figure.

Step-by-step explanation:

Because if the figure originally was M' (-2,2), S' (4,2), V' (2, -2). And now the shape is M (-3, 3), S (6, 3), V ( 3, -3). This means that the Triangle got bigger.

The scale factor of the smaller shape inside of the bigger shape is 2 and the scale factor of the bigger shape is 3 making the bigger shape well bigger.