Evaluate the piecewise function for f(-2).
A. -15
B. -13
C. 11
D. 17

Answer:

10x + 15y = 450

Step-by-step explanation:

A store sells bracelets for $10 and rings for $15.

Sold 30 items.

They counted the money they made $450.

x = bracelets

y = rings

10x + 15y = 450

Answer:

its D i promise can i have brainly?:)

Step-by-step explanation:

Answer:

D) -12

Step-by-step explanation:

Answer:

907.46 mm2

Step-by-step explanation:

Formula:

Area of circle = (¶d^2)/4

Given:

d = 34 mm

3.14

Solution:

Area A = (3.14 x 34^2)/4

= 907.46 mm2

[RevyBreeze]

The circumference of the circle is 106.76 km.

Circumference of a circle is defined as the total length of the boundary of the circle.

The concept is same as the perimeter for straight sided figures.

Given that,

The diameter of a circle is 34 kilometers.

Diameter of the circle = 34 kilometers

Radius of the circle = Half of diameter = 34 / 2 = 17 km

Circumference of the circle = 2πr, where r is the radius of the circle.

Circumference = 2π × 17

                         = 34π

                         = 106.76 km

Hence the circumference of the circle is 106.76 km.

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The sum of interior angles of the given polygon is 900 degrees

The formula used to calculate the sum of an interior angle of a polygon is expressed as:

Sum of interior angles = ( n − 2 ) × 180 ∘

n is the number of sides

The number of sides of the given polygon is 7, hence;

Sum of interior angles = (7 − 2 ) × 180 ∘

Sum of interior angles = 5 ×  180 ∘

Sum of interior angles = 900 degrees

Hence the sum of interior angles of the given polygon is 900 degrees

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Answer:

The answer to this question is 18 1/ 2 degrees

Step-by-step explanation:

Answer:

x = 20 degrees, angle ABC = 98 degrees

Step-by-step explanation:

The two inner angles sum up to 180 degrees. This is a general rule when you have two parallel lines and another line intersecting through both lines.

So angles ABC and DCB sum up to 180.

4x + 18 + 2x + 42 = 180

6x + 60 = 180

6x = 120

x = 20 degrees

Plugging this back in angle ABC,

4(20) + 18 = 98 degrees

Answer:

53 square units

Step-by-step explanation:

12.5+13+13.5+14

Answer:

The equation t = d + 16 represents the scenario

Step-by-step explanation:

The independent variable, the input, is the variable d, representing distance. The distance traveled depends on the amount of time Marlene rides her bike. The initial value of the scenario is 16 miles per hour. so The equation t = d + 16 represents the scenario

Step byCombine any like terms on each side of the equation: x-terms with x-terms and constants with constants. Arrange the terms in the same order, usually x-term before constants. If all of the terms in the two expressions are identical, then the two expressions are equivalent.

Answer:

Your answer is 30 sq. yd

Step-by-step explanation:

To find the area of the rectangle:

l x w

6 x 4 = 24

To find area of triangle:

1/2(bh)

to find the base of the triangle you subtract 6 from 9:

9 - 6 = 3

So 1/2 (3 x 4)

1/2 (3 x 4)

1/2 (12)

12 / 2 = 6

Area of whole figure:

You will now add 6 + 24 = 30

Answer:

The automobile's average speed is 53.33 mph.

Step-by-step explanation:

Since average speed equals total distance traveled divided by the time of the travel we have:

d = 320 mi the distance traveled

t = 6 hr the time of the travel

v = average speed

v = d/t

v = 320/6

v = 53.33 mph

Answer:

about 53 miles per hour

Step-by-step explanation:

320/6 is 53.33 repeated

you divide 320/6 because you need to know how many miles you going in an hour

hope that helps!

Answer:

I believe its c or a

Step-by-step explanation:

just guess those are my suggestions

The inverse of the trigonometric function given in the graph is;

Option D; y = arc cosx

The graph is missing and so i have attached it.

when x = 0, y = 1

when x = π, y = -1

when x = π/2, y = 0

Now, the equivalent of radian angle π when converted to degrees is; π = 180°

Thus; π/2 rad = 90°

Thus;

when x = 0°, y = 1

when x = 180°, y = -1

when x = 90°, y = 0

sin 0 = 0

tan 0 = 0

cos 0 = 1

Let us try angle 90°

sin 90 = 1

cos 90 = 0

tan 90 = ∞

The inverse of cos x is cos⁻¹x or arc cos x.

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Answer:

D

Step-by-step explanation:

The total length that Vulkan jumped on both occasions is 3 1/2 feet.

A fraction is a non integer that is made up of a numerator and a denominator. The numerator is the number above and the denominator is the number below.

First convert yard to feet: 1 yard = 3 feet

7/8 x 3 = 21/8 = 2 5/8

Now add the fractions together

2 5/8 + 2 7/8

2 (5 + 7) / 8 = 2 12/8 = 3 1/2 feet

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Answer:

[tex](-2,-5)[/tex]

Step-by-step explanation:

[tex]\begin{bmatrix}y=-4x-3\\ y=-2x+1\end{bmatrix}[/tex]

[tex]\mathrm{Substitute\:}y=-2x+1[/tex]

[tex]\begin{bmatrix}-2x+1=-4x-3\end{bmatrix}[/tex]

Isolate x for -2+1=-4x-3: x=-2

[tex]\mathrm{For\:}y=-2x+1[/tex]

[tex]\mathrm{Substitute\:}x=-2[/tex]

[tex]y=-2\left(-2\right)+1[/tex]

[tex]-2(-2)+1=5[/tex][tex]4+1=5[/tex]

[tex]y=5[/tex]

The sample size of the actors is the number of actors Darrien selected

The sample size is 15

From the question, we understand that:

Darrien has 60 actors

This represents the population of the experiment.

Then he selected 15 of the actors, and 8 of them have previous acting experience.

The 15 actors he selected represents the sample of the experiment

Hence, the sample size is 15

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Answer: so i hope this was imformation was helpful but here is the real answer  a is triangle b is trapezoid c is sqaure D is hexgon

Step-by-step explanation: thank you for leting me answer hope it was helpful

Answer:

3.141592653589793238462643383279

Step-by-step explanation:

Answer:

9

Step-by-step explanation:

the 30th decimal of pi is 9

Answer:

A.654 cm

Step-by-step explanation:

V = h times π times Radius

Answer:

If it travels 12.56 ft in one revolution, then the circumference of the tire is 12.56 ft.

Circumference = 2 x π x radius

12.56=2 x 3.14 x radius

radius x 6.28=12.56

Radius= 2 ft

Step-by-step explanation:

Answer:24

Step-by-step explanation:

you will get 58 by adding 21 and 37 and subtract that by 82 which gives you 24

Answer:

24 were hiphop

Step-by-step explanation:

you do 82 - (21+37)

= 82 - 58

= 24

Answer:

1000000000000

Step-by-step explanation:

if you =have 10^12 power you multiply 10*10 12 times

so to work it out you would do:

10*10*10*10*10*10*10*10*10*10*10*10=1000000000000

and since your bored to death here's a cool pic

Answer:

dilation

Step-by-step explanation:

i passed the class

Answer:

  (c)  (4.92, -0.91)

Step-by-step explanation:

The conversion shown in the attached uses the complex number features of the calculator, so the y-coordinate is shown as an imaginary value. Rounded to 2 decimal places the conversion is ...

  (r; θ) ⇔ (x, y)

  (5; 6.1) ⇔ (4.92, -0.91)

__

The correct answer choice can be made without the use of technology. The sum of the magnitudes of the values of x and y must not be less than r, eliminating the first two choices. The angle 6.1 radians is near the angle 6.28 radians (2π), so is almost 360°. It will be a 4th-quadrant angle, so its y-component will be negative (eliminating the last choice).

The only viable choice for polar coordinates of radius 5 and angle 6.1 radians is the third choice: (4.92, -0.91).

__

Additional comment

The angle given has no units, so we assume it is given in radians. A calculator can only give a proper answer if it is set to radians mode for angles.

By using relation between ml and litre we got that 0.71 ml is equal to 0.00071 L

Relation between ml and litre is that 1 litre =1000 ml

we know that litre and ml are two units of volume and we can convert data from one to another using their relation

Now here given data is in ml

and data is 0.71 ml

We can convert 0.71 ml in litre as

71ml = 0.71/1000 litre

71ml= 0.00071 litre =0.00071 L

By using relation between ml and litre we got that 0.71 ml is equal to 0.00071 L

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Answer:

Thelma drove 430 miles, Louise drove 320 miles

Step-by-step explanation:

[tex]Distance = 750\\T + L = 750\\T = L + 110\\(L + 110) + L = 750\\2L + 110 = 750\\2L = 640\\L = 320\\T = 430[/tex]