True or false and please explain

Answer:

subtraction, n - 13 is 29, subtract, different numbers, 42.

Answer:

The number is 42

Step-by-step explanation:

Let the number be \(x\)

According to the problem,

   \(x - 13 = 29\)

⇒ \(x = 29 + 13\)

⇒ \(x = 42\)

Hence, the number is 42.

Answer:

c

Step-by-step explanation:

cant have the same x as the other functions

Answer:

  C.  70°

Step-by-step explanation:

The inscribed angle marked 15° intercepts an arc that is double that measure, so the intercepted arc on the right is 2×15° = 30°.

The external angle marked 20° is half the difference of the intercepted arcs, so is ...

  20° = (1/2)(x - 30°)

  40° = x - 30° . . . . . . multiply by 2

  70° = x . . . . . . . . . . . add 30°

The value of x is 70°.

the d1 = 2A/d2 and d2 = 2A/d1 are correct options.

What is an Equations?

Equations are mathematical statements with two algebraic expressions on either side of an equals (=) sign. It illustrates the equality between the expressions written on the left and right sides. To determine the value of a variable representing an unknown quantity, equations can be solved. A statement is not an equation if there is no "equal to" symbol in it. It will be regarded as an expression.

The given A=a equals Start Fraction one-half End d1, d2, 2d1d2 where d1 and d2 are the lengths of the diagonals.

So the correct options are

d1 = 2A/d2

d2 = 2A/d1

Hence the d1 = 2A/d2 and d2 = 2A/d1 are correct options.

Learn more about equations, by the following link

brainly.com/question/2972832

#SPJ4

The given graph represents y=1+sin(x), because correspoonds to the original y=sin(x) traslate 1 unit up.

The equation, in slope intercept form, of a line that is perpendicular to line AB and passes through (-3, 4) is y = -0.5x + 2.5.

In Mathematics and Geometry, the point-slope form of a straight line can be calculated by using the following mathematical equation (formula):

y - y₁ = m(x - x₁)

Where:

Since the equation of line AB is -5 = 2x - y, the slope is given by;

y = 2x + 5

m₁ × m₂ = -1

2 × m₂ = -1

m₂ = -1/2

Slope, m₂ = -1/2

At data point (-3, 4) and a slope of -1/2, a linear equation for this line can be calculated by using the point-slope form as follows:

y - y₁ = m(x - x₁)

y - 4 = -1/2(x + 3)  

y = -1/2(x) + 2.5

y = -0.5x + 2.5

Read more on point-slope here: brainly.com/question/24907633

#SPJ1

Answer:

10 and 15 hours

Step-by-step explanation:

x+y =25 where x is the number of hours the first mechanic worked. y is the number of hours the second mechanic worked

75x+55y=1575

x+y =25 therefore y=25-x

We replace y in equation 75x+55y=1575 with 25-x

75x+55(25-x)=1575

now we solve for x

distribute 55 through the parentheses

75x+1375-55x=1575

combine like terms

20x+1375=1575

move the constant to the right-hand side and change its sign

20x=1575-1375

20x=200

divide each side by 20

x=10

If x is 10 then y has to be 15 since both worked a total of 25 hours.

An equation using four numbers that add to 0 none of which are opposites is 15 + (-10) + 1 + 4

It should be noted that an equation is simply used to show the relationship between the variables.

Based on the information given, the appropriate equation will be:

= 15 + (-10) + 1 + 4

= 15 - 10 + 1 + 4

= 0

Learn more about equations on

brainly.com/question/2972832

#SPJ1

Write an equation using four numbers that as

add to 0 none of which are opposites.

Answer:

USE SOCRACTIC IT WOULD REALLY HELP

Answer: Mean: 4.625 Median: 6

Step-by-step explanation:

Answer: The domain is all of the possible values for the input (x) axis.  The range is the possible values for the output (y).

Step-by-step explanation: You will have to subtract the least value from the greatest value for both your x and y.

Answer:

\(P_{B}\) = 80

Step-by-step explanation:

given 2 similar figures with ratio of sides = a : b

then ratio of perimeters is also a : b

here ratio of sides = 24 : 15 = 8 : 5

the ratio of perimeters is also 8 : 5

then by proportion

\(\frac{ratioA}{P_{A} }\) = \(\frac{ratioB}{P_{B} }\) , that is

\(\frac{8}{128}\) = \(\frac{5}{P_{B} }\) ( cross- multiply )

8 \(P_{B}\) = 5 × 128 = 640 ( divide both sides by 8 )

\(P_{B}\) = 80

Based on the supply graph and demand graph shown above, the price at the point of equilibrium is $ 30.

Demand refers to quantity of a commodity that the consumers are willing to, able to purchase at a given price during a given period of time. Supply refers to quantity of a commodity that the producers are willing to, able to offer for sale at a given price during a given period of time.

Demand curve slopes downward due to inverse relationship between price and quantity demanded whereas supply curve slopes upward due to direct relationship between quantity supplied and price. When both demand and supply curve intersect with each other balance is achieved. Intersection point between demand and supply curve is known as equilibrium.

At this point when prices are equal is known as equilibrium price and when quantiy demanded or supplied are equal it is known as equilibrium quantity. When we combine the given graph. Equilibrium is achieved at a point when price is equal to $ 30 and quantity is equal to 20 units.

To learn more about equilibrium of demand and supply:

https://brainly.com/question/30237240

Answer:

b

4 x 3.2 = 12.8

17.8 - 5 =12.8

so,

4 x 3.2 = 17.8-5

12.8=12.8

Answer:

\(180units^{2}\)

Step-by-step explanation:

\(Area = \frac{1}{2} *(a + b )*h\\\\\)

Here,

(a+b) = sum of the parallel sides

h = perpendicular distance between parallel sides

Before find the area we have to find the perpendicular distance between parallel side by using Pythagorean theorem

\(7^{2} + h^{2}= 25^{2}\\49+h^{2} =625 \\h^{2}= 625-49\\h^{2}=576\\h = \sqrt{576} \\h=24\)

Now let's find the area

\(Area = \frac{1}{2} *(a + b )*h\\\\\)

\(=\frac{1}{2}*(11+4)*24\\=\frac{1}{2}*15*24\\ =180units^{2}\)

Hope this helps you.

Let me know if you have any other questions :-)

Answer:

1.5

Step-by-step explanation:

1.26 ÷ 0.84 = 1.5

Corresponding Angles postulate is ur answer mate

The answer is 0.471 radians.

FORMULA:

Just do 27° × π/180 = 0.4712rad but then cut off the two.

Answer: ∠GFE ≅ ∠GHJ

Step-by-step explanation:

In triangle EFG, we have side FG (which is opposite angle E) and EF (the side opposite angle G).

For SAS, we need the angle in between these sides, which would be angle F.

Answer:

B.∠GFE ≅ ∠GHJ

Step-by-step explanation:

got it correct on my quiz

Part a) If in 1970 the 83% of 30-year-olds earned more than their parents, then if we choose at random one 30-year-old person the probability that he/she earned more than his/her parents when they were 30 years old is 0.8300.

Part b) The probability of two randomly selected 30-year-olds in 1970 earned more than their parents at age 30 is 0.83*0.83= 0.6889.

Part c) For this part we use binomial probability. The probability of interest is equal to the probability that at least 9 earned more than their parents. The probability that at least 9 earned more than their parents is:

computing we get 0.4730.

Part d) Solving similarly as part c) but considering that the probability for the year 2014 instead of the one for 1970 we get:

computing we get 0.0054.

No, the rank of the product of two n by n square matrices A and B, denoted as AB, cannot be less than n-1 if both A and B have ranks of n-1.

According to the Rank-Nullity theorem, for any matrix M, the sum of its rank and nullity is equal to the number of columns in M. In this case, the number of columns in AB is n, so the sum of the rank and nullity of AB must be n.

If rank(A) = rank(B) = n-1, it means that both A and B have nullity 1. The nullity of a matrix is the dimension of its null space, which consists of all vectors that get mapped to the zero vector when multiplied by the matrix. Since both A and B have rank n-1, their null spaces consist only of the zero vector.

Now, considering AB, if the rank of AB were less than n-1, it would mean that the nullity of AB is greater than 1.

However, this would violate the Rank-Nullity theorem since the sum of the rank and nullity of AB must be n, which is the number of columns.

Therefore,  if rank(A) = rank(B) = n-1, the rank of AB cannot be less than n-1.

For more such questions on rank

https://brainly.com/question/28839672

#SPJ8

Answer: Choice A)  All points with an x-value of 3 are located in Quadrant I.

We can show it is false through the use of a counter example. For instance, the point (3, -5) is not in quadrant 1, but rather in quadrant 4.

We would need to say "all points with x value 3 and positive y value" to ensure the point is in quadrant 1.

The false statement:

All points with an x-value of 3 are located in Quadrant I.

Coordinates are a pair of integers (Cartesian coordinates), or occasionally a letter and a number, that identify a certain place on a grid, often referred to as a coordinate plane.

From the given choices:

Let the statement is true.

All points with an x-value of 3 are located in Quadrant I.

Let the coordinate point (3, -7)

This point lies in the fourth quadrant.

Which is contradiction.

Therefore, the statement is false.

To learn more about the coordinates;

https://brainly.com/question/27749090

#SPJ6

(a) To meet the desired 20g protein and 80g carbohydrate intake, prepare 4 servings of Pork & Beans and combine with 15 slices of "lite" rye bread.

(b) Bread: A/4 slices, Beans: B/21 - (A/4) * (12/21) servings.

(a) To prepare a meal of "beans-on-toast" that supplies 20 grams of protein and 80 grams of carbohydrates, you can use the following combination:

- Servings of Campbell's Pork & Beans: 4 servings.

- Slices of "lite" rye bread: 15 slices.

By using 4 servings of Campbell's Pork & Beans, you will obtain a total of 20 grams of protein (5 grams per serving) and 84 grams of carbohydrates (21 grams per serving).

Combining this with 15 slices of "lite" rye bread will contribute an additional 60 grams of carbohydrates (12 grams per slice) and 4 grams of protein (4 grams per slice). Thus, your meal will meet the desired nutritional requirements of 20 grams of protein and 80 grams of carbohydrates.

(b) The formula to determine the number of slices of bread and servings of Pork & Beans needed to meet specific protein and carbohydrate requirements is as follows:

- Number of slices of bread (Bread): A divided by 4.

- Number of servings of Pork & Beans (Beans): (B divided by 21) minus ((A divided by 4) multiplied by (12 divided by 21)).

Using this formula, you can calculate the appropriate quantities of bread and beans based on the desired protein (A) and carbohydrate (B) values.

For more such questions on carbohydrate, click on:

https://brainly.com/question/29917711

#SPJ8

Answer:

Step-by-step explanation:

First, we need to find the difference between the price that he sold the shares for and the price that he bought them at: (67.68-60.65) = 7.03

That means that there was a gain of $7.03 per share for Archie.

That being said, since Archie bought 100 shares, we can multiply that number by 100 to find the total gain from selling the shares:

(7.03x100)= 703

The answer then is:

Archie gained $703 from selling all of his shares.

The mean of the given data is 1744 days, median of the given data is 1460.5 days, mode of the given data is 1461 days & 4422 days.

To find the mean, median, and mode of the lengths of terms of the US Presidents that preceded Joe Biden:

Mean:

To find the mean, we add up all of the term lengths and divide by the total number of terms:

Mean = (4422 + 2922 + 2865 + 2840 + 2728 + 2041 + 2027 + 1886 + 1654 + 1503 + 1461 + 1460 + 1430 + 1419 + 1262 + 1036 + 969 + 895 + 881 + 492 + 199 + 31) / 44

Mean = 1743.77 days

Median:

To find the median, we need to arrange the term lengths in order from smallest to largest, and then find the middle term. In this case, since we have an even number of terms, we will take the average of the two middle terms:

31 199 492 881 895 969 1036 1262 1419 1430 1460 1461 1503 1654 1886 2027 2041 2728 2840 2865 2922 4422

Median = (1460 + 1461) / 2

Median = 1460.5 days

Mode:

The mode is the most frequently occurring term length. In this case, there are two modes: 1,461 days and 4,422 days.

Since the term length of FDR is much higher than all the other term lengths, it has pulled up the mean to a higher value than the other measures of central tendency. Additionally, the mode being a high value is likely due to the fact that FDR served for more than three terms, which is an outlier in the data set.

For more such questions on Mean & median

https://brainly.com/question/26177250

#SPJ4

The five rational number between -5/6 and 5/6 are \(\frac{-4}{6} ,\ \frac{-3}{6} ,\ \frac{-2}{6} , \ \frac{-1}{6} ,\ \frac{1}{6}\)

We have given two rational numbers \(\frac{-5}{6}\) and \(\frac{5}{6}\) .

For finding rational number make the denominator of given numbers same.

As the denominator of given numbers is already same so , we don't need to multiply .

Thus , five rational numbers are

 \(\frac{-4}{6} ,\ \frac{-3}{6} ,\ \frac{-2}{6} , \ \frac{-1}{6} ,\ \frac{1}{6}\)

Learn more about rational number here :

https://brainly.com/question/12088221

#SPJ9

The dimensions of the tennis court are 42 feet by 114 feet.

Let the width of the tennis court be x feet.

We can use the formula for perimeter to solve this problem. The perimeter of a rectangle is equal to 2 times the length plus 2 times the width.

2(2x + 30) + 2x = 228

4x + 60 = 228

4x = 168

x = 42

The length of the tennis court is 2x + 30 = 2(42) + 30 = 114 feet.

The dimensions of the tennis court are 42 feet by 114 feet.

Learn more about perimeter of a rectangle here:

https://brainly.com/question/29595517

#SPJ4

Answer: yes

Step-by-step explanation:

25 divided by 4 1/4 = 5 15/17

hope this helps :)

Answer:

Yup!

Step-by-step explanation:

Answer:

100x20%=20

So 100+20=120

OR

100x120%=120