Is y = x 2 – 1 a linear equation?

Answer:

Step-by-step explanation:

Let width = x

Length = 7 + x

Perimeter = 42 yards

2*(length + width) = 42

2* ( 7 + x + x) = 42

7 + 2x = 42/2

7 + 2x = 21

2x = 21 - 7

2x = 14

x = 14/2

x = 7

Width = 7 yards

Length = 7 + 7 = 14 yards

Answer:

The answer is c

Step-by-step explanation:

About the same number of students spend 0-30 minutes on homework as spend 31-60 minutes.

Answer:

5

Step-by-step explanation:

[tex]f(x) = 2x + 5 \\ pluggng \: x = 0 \\ f(0) = 2 \times 0 + 5 = 0 + 5 = 5 \\ f(0) =5 \\ [/tex]

Answer:

5^6

Step-by-step explanation:

With exponents to exponential powers, you can simply multiply the exponents. So since 2*3=6, (5^2)^3 = 5^(2*3) = 5^6

Answer:

5⁶

Step-by-step explanation:

(5²)³ is equal to the two exponents multiplied together

(5²)³ = 5⁶

Quadrilateral BCEF in circle A with diagonals EB and CF is given below.

Step-by-step explanation:

From the diagram, quadrilateral BCEF is a cyclic quadrilateral.

Opposite angles if a cyclic quadrilateral sum up to 180°

m∠ECB + m∠EFB=180

The diagonals intersect at D to form two pairs of vertical angles, and vertical angles are congruent

m∠CDB≅m∠EDF

Also sum of angles in triangle CBD is 180°.

m∠CDB +m∠DCB+m∠CBD =180

Answer:

D, 1250 square feet

Step-by-step explanation:

Area of a circle:

[tex]\pi * r^2[/tex]

Diameter is twice the radius, so the radius is 20 ft.

Thus the area of grass is 400pi

Answer:

The answer is D

Step-by-step explanation:

You are basically looking for the area of this circle, the formula would be A=Pi*r^2. So plug the values in and it would be, A=3.14*400, we know the radius is 20 because the diameter is double that, and square the radius, this gives you 400.

Answer: you can’t it is 12/7

Step-by-step explanation:

Answer:

You cant simplify 12 and seven since they dont have common factors,however you can divide which also applies as a simplification method

Step-by-step explanation:

12/7=1.71

Answer:

0.3 repeating

Step-by-step explanation:

to find the decimal equivalent of a fraction you have to take the numerator (top number) and divide it by the denominator (bottom number)

Answer:  

1A. = 68.96 degrees.

2A.  = YES

Step-by-step explanation:

Hi, to answer this question we have to apply:

sin (angle ) = opposite side / hypotenuse

Since the triangle formed is a right triangle ( see attachment), the hypotenuse is the length of the ladder (the longest side), and the opposite side to the angle is the distance between the top of ladder and the ground.

Replacing with the value given

sin x = 14/15

Solving for x

x = arcsin 14/15

x = 68.96 degrees. (1A)

Since the angle is lower than 75 degrees, the ladder is safe the way is positioned.

Answer:

1⅓ inches

Step-by-step explanation:

Area = side² = x²

9(x²) = 16

x² = 16/9

x = 4/3 inches or 1⅓ inches

Final answer:

To find the side length x of the original square when the area multiplied by nine equals 16 square inches, solve the equation [tex]9 \times x^2 = 16[/tex], resulting in x being [tex]\frac{4} {3}[/tex] inches or approximately 1.33 inches.

Explanation:

If the area of a square is multiplied by nine and becomes 16 square inches, we can write the equation as

[tex]9 \times x^2 = 16[/tex], where x is the length of a side of the square.

To find the length of the side x, we first divide both sides of the equation by 9 to isolate [tex]x^2[/tex]:

[tex]x^2 = \frac{16}{9}[/tex]

Then, we take the square root of both sides to solve for x:

x =  [tex]\frac{4} {3}[/tex] or approximately 1.33 inches.

So the length x of a side of the original square is  [tex]\frac{4} {3}[/tex] inches.

Answer:

the answer is 10

Step-by-step explanation:

Answer:

Its 10

Step-by-step explanation:

just did on edge hope it helps                          :)

Answer:

i think no.c is correct because there is the value of a b c as indicated in the diagram

Answer:

3

⋅

9

1

2

Step-by-step explanation:

Rewrite  

9

as  

3

2

.

3

√

3

2

Pull terms out from under the radical, assuming positive real numbers.

3

⋅

3

Multiply  

3

by  

3

.

9

Answer:

0

Step-by-step explanation:

Answer:

25

Step-by-step explanation:

Find the volume of both boxes

V = base * height

Bigger box

base = 50 * 30 = 1500

1500 * 20 = 30,000

Smaller box

b= 10 * 30 = 300

300 * 4 = 1200

30,000 / 1200= 25

To find the missing coordinate for point Z of rectangle WXYZ, we apply the properties of rectangles with given coordinates W(1,1), X(5,1), and Y(5,4). Z shares its x-coordinate with W and its y-coordinate with Y, so the missing coordinate for Z is Z(1,4).

To determine the missing coordinate for point z of rectangle WXYZ, we need to understand the properties of rectangles. A rectangle has four right angles, and opposite sides are equal and parallel. Coordinate geometry principles are applied here for pinpointing the missing point.

Given the coordinates of points W(1,1), X(5,1), and Y(5,4), we can deduce the coordinates of Z. Since WX is a horizontal line segment and WY is a vertical line segment, we can infer that X and Y have the same x-coordinate because they are both on the right side of the rectangle. Similarly, W and Z should have the same x-coordinate since they are on the left side. Since the x-coordinate of W is 1, so will be the x-coordinate of Z.

Also, because W and X have the same y-coordinate, we know that the top and bottom sides of the rectangle are horizontal. Y and Z, therefore, must have the same y-coordinate, which is 4, the y-coordinate of point Y.

Thus, the missing coordinate for point Z is Z(1,4).

Answer:

6 ft /\ 2

Step-by-step explanation:

Multiply the altitude of the diamond times the length of one of its sides. The altitude is the distance between any two opposite sides of the diamond. So if the diamond has an altitude of 2 feet and its sides are each 3 feet long, its area is 2 * 3 = 6 feet squared.

Answer:

The GCF is 1

Step-by-step explanation:

Step 1:  Find the factors of both 6 and 35

6 → 1, 2, 3, 6

35 → 1, 5, 7, 35

To find the factors, both of the sets should have the same number.  The highest number that is in both sets is the GCF.  So... I have the GCF bold on top to show that the answer is 1.

Answer:  The GCF is 1

Answer:

14.1

Step-by-step explanation:

[tex]v = \frac{4}{3} \pi (1.5)^{2}\\ \\v = 14.1[/tex]

Answer:

14.1 is right just trying to help  and support

Step-by-step explanation:

From the given data sets, only option A has more than one mode (30 and 50),

so the correct answer is:

A. {10, 20, 30, 30, 40, 50, 50}.

We know that, A mode is a value in a dataset that appears most frequently.

To determine which data set has more than one mode, we need to find the sets that have multiple values that appear most frequently.

Let's examine each data set:

A. {10, 20, 30, 30, 40, 50, 50}

Mode(s): 30 and 50 (both appear twice)

B. {10, 20, 30, 40, 50, 70, 70}

Mode(s): 70 (appears twice)

C. {20, 20, 30, 30, 30, 40, 40}

Mode(s): 30 (appears three times)

D. {10, 20, 30, 40, 50, 60, 70}

Mode(s): None (each value appears only once)

From the given data sets, only option A has more than one mode (30 and 50),

so the correct answer is:

A. {10, 20, 30, 30, 40, 50, 50}.

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Answer:

Step-by-step explanation:

The indicated angles are 1) equal (because the trapezoid is isosceles), 2) acute (their measures are less than 90 degrees each), 3) congruent

Answer:

i think u add them

Step-by-step explanation:

9+ 7+16=32

Answer:

Step-by-step explanation:To estimate the probability that the player makes both free throws based on the given simulation results, we can analyze the number of successful free throws (numbers 0 to 6) in each trial. From the provided data, we can identify the trials where both free throws were successful (made), indicated by the numbers 0 to 6 occurring twice in a row. Let's examine the data:(5,5) (0,6) (9,6) (7,4) (9,1) (7,3) (0,4) (9,3) (2,9) (1,4) (6,8) (5,3) (1,7) (1,7) (1,8) (3,5) (7,2) (2,1) (0,6) (1,8)Based on this data, we can see that the combinations where both free throws were made (0 to 6 occurring twice in a row) are:

(5,5) (1,8)Therefore, there are 2 trials out of 20 where the player made both free throws.To estimate the probability, we can divide the number of trials where both free throws were made (2) by the total number of trials (20):Probability = Number of successful trials / Total number of trials

Probability = 2 / 20

Probability = 0.1Therefore, based on this simulation, the estimated probability that the player makes both free throws is 0.1 or 10%.

The probability that the player makes both free throws is 55%.

Given data:

To estimate the probability that the player makes both free throws, count the number of trials where both free throws were made and divide it by the total number of trials.

Looking at the given random numbers, the pairs (5,5), (0,6), (9,6), (7,4), (9,3), (2,9), (1,4), (6,8), (5,3), (3,5), and (7,2) represent made free throws.

On counting the number of trials where both free throws were made, there are 11 pairs.

Since there are 20 total trials, the estimated probability of the player making both free throws is:

11/20 = 0.55

Hence, the estimated probability that the player makes both free throws is 0.55 or 55%.

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Answer:

A=hbb /2

Step-by-step explanation:

Answer:

(-27,-3) (0,0) (1,1)

Step-by-step explanation:

Because I got it right xD

Answer:

Just DID THIS!!!Here are your answers,

(-27,-3)

(0,0)

(1,1)

Step-by-step explanation:

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Farmer Brown has 5 cows and farmer Green has 7 cows

Step-by-step explanation:

Let the no. of cows farmer brown has be 'b'

Let the no. of cows farmer green has be 'g'

Given that,

B+1 = G-1

G = B + 2

G+1 = 2(B-1)

G+1 = 2B - 2

G = 2B -3

B + 2 = 2B - 3

2 + 3 = 2B - B

B = 5

G = B +2

G = 5 + 2

G = 7

Farmer Brown has 5 cows and farmer Green has 7 cows

Answer:

(6, 9 )

Step-by-step explanation:

Under a reflection in the y- axis

a point (x, y ) → (- x, y ), thus

(- 6, 9 ) → (6, 9 )

Reflection over the y-axis in mathematics changes the sign of the x-coordinate of a point while the y-coordinate remains unchanged. Therefore, the point (-6,9) reflects over the y-axis to become (6,9).

In mathematics, a reflection over the y-axis is a geometrical transformation of a point in a two-dimensional space. When we reflect a point over the y-axis, the x-coordinate of that point changes its sign, while the y-coordinate remains the same.

Given the point (-6,9), after reflection over the y-axis, it will become (6,9). This is because the reflection changes the sign of the x-coordinate, turning -6 into 6, while the y-coordinate remains the same.

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Answer:

9 units

Center is at (5, 0)

Step-by-step explanation:

The radius of the circle is equal to the square root of 81

[tex]\sqrt{81}[/tex] = ±9

Since the radius of a circle must be positive the answer is 9 units.

The center of the circle is at (5, 0)