HELPPP PLEASE I HAVE A TEST!!​

Answer:

f

(

x

)

=

3

cos

(

2

x

)

+

2

EXPLANATION:

We are able to use the transformation formula

f

(

x

)

=

a

⋅

cos

(

x

−

h

b

)

+

k

. You start with

f

(

x

)

=

cos

(

x

)

and replace

a

with the desired amplitude,

h

with the desired horizontal shift, and

k

with the desired vertical shift. This leaves out the

b

-value. A regular cosine function has a period of

2

π

. If you want a period of

π

, since that is one half of the original period, you need to replace your

b

with a

1

2

.

This is about how it would work out.

f

(

x

)

=

3

⋅

cos

(

x

−

0

1

2

)

+

2

From there you simplify your equation giving you

f

(

x

)

=

3

cos

(

2

x

)

+

2

Answer:

f(x) = 3 cos 2x + 2

Step-by-step explanation:

got it right on the test.

Answer:

y = 0

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

−5(6+7y)=−5(6+y)

(−5) (6) + (−5) (7y) = (−5) (6) + (−5) (y) (Distribute)

−30 + − 35y = −30 + −5y

−35y − 30 = −5y −30

Step 2: Add 5y to both sides.

−35y − 30 + 5y = −5y −30 + 5y

−30y −30 = −30

Step 3: Add 30 to both sides.

−30y − 30 + 30 = −30 + 30

−30y = 0

Step 4: Divide both sides by -30.

−30y /−30  =  0 /−30

Answer:

p=5

Step-by-step explanation:

a(x+y) is also (x+y)a

So if 3(n+5) has to be equivalent to (n+p)3, then p has to be 5.

---

hope it helps

Answer:

3a. yes

3b. y= 75x

3c. 600 mi

3d. 10 inches

Step-by-step explanation:

3a: if you divide the y by the x, you'd get 75 everytime, meaning it's proportional.

3b: y would equal the amount of inches multiplied by 75, so y=75x

3c: you can use the equation and substitute the x for 8, so y=75(8), giving you 600 miles

3d: you can also use the equation in reverse, if the actual miles is 750, then this is your y, so it would look like 750=75x and to solve you'd divide, 750/75, giving you 10 inches

Answer:

Si el metro cuadrado es a $ 50 Alejadro pagó por el terreno  $195 000

Step-by-step explanation:

Ya que no se especifica un valor por unidad de área podemos suponer por  ejemplo $ 50 / metro^2

Terreno:

0.3 hm^2

0.9 dam^2

1) Vamos convertir a la misma unidad de área las áreas del terreno para poder saber su costo.

-Hectómetro cuadrado

1 hm^2  = 10 000 m^2

Por lo tanto,

0.3 hm^2 * 10 000 m^2 /  1 hm^2 = 3000 m^2

-Decámetro cuadrado

1 dam^2  = 1 000 m^2

Por lo tanto,

0.9 dam^2 *  1 000 m^2 /1 dam^2  = 900  m^2

Así que el total del terreno es de 3900 m^2

2) Ahora podemos calcular el valor total del terreno

area* valor (por m^2)

3900  m^2  * $50/ m^2 =  $195 000

Answer:

x=-4,3

Step-by-step explanation:

x+4=0

x=-4

x-3=0

x=3

Answer:

i think it’s the 5th one

Step-by-step explanation:

Answer:

They don’t 12+16+20= 48

12 x 16 x 20= 3840

Step-by-step explanation:

9514 1404 393

Answer:

  10

Step-by-step explanation:

The distance formula is useful.

  d = √((x2 -x1)^2 +(y2 -y1)^2)

  d = √((7 -1)^2 +(12 -4)^2) = √(6^2 +8^2) = √(36 +64) = √100

  d = 10

The distance between P and Q is 10.

_____

Additional comment

You may recognize the run : rise ratio of 6 : 8 = 3 : 4. This suggests a 3-4-5 right triangle with a scale factor of 2. If you're familiar with that Pythagorean triple, you can write down the answer as soon as you see the rise and run numbers.

Answer: 338 Sq. Ft.

Step-by-step explanation:

26 is the identified length, half of 26 is 13 therefor 13 is the width. Length x Width gives you the area, 26 x 13 gives you 338 Sq. Ft.

Answer:

B=80

Step-by-step explanation:

B is the same answer as the number on the other side

Answer:

1

Step-by-step explanation:

3 - (4) 1/2

3 - 2

= 1

Answer:

5.3

Step-by-step explanation:

27.8/37 = x/7

37x = 194.6

x=5.25

x=5.3

Answer:18

4x +108=180

Step-by-step explanation:

Answer:

x=18

Step-by-step explanation:

a straight angle is a total of 180 degrees so you subtract 108 from 180 to get 72 and then divide by 4 to get 18

Answer:

a)

The angle formed by intersecting chords is half of the sum of the intercepted arcs:

b)

The angle formed by two tangents is the half of the difference of the intercepted arcs:

Answer:

solve the equation by rewriting in exponential form using the definition of a logarithm and simplifying.

Exact Form:

x=  1/10000

Decimal form:

x=0.0001

Answer:

x=1

Step-by-step explanation:

x+2=2x+1

x=1

sides of a square must be equal

Resposta:

180

Espero ter ajudado

=============================================================

Explanation:

A secant line cuts the circle so that part of the line is inside the circle, and the rest (or majority) of the line is outside the circle. In other words, the secant line intersects the circle at exactly two points.

This is in contrast to a tangent line that only touches the circle at exactly one point. Line L is the tangent line in this case.

Segment DC is a diameter of the circle as it goes through the center, and this segments endpoints are on the circle's edge. The segments AD and AC are radii of the circle.

Answer:

Line BC

Step-by-step explanation:

Answer:

B.

Step-by-step explanation:

You can draw draw ten lines through this figure to get symmetry either side.

Answer:

315

Step-by-step explanation:

819 miles/13 hours = 63 miles per hour

63 x 5 = 315

Answer:51 minutes

Step-by-step explanation:

Answer:

b= 2

Step-by-step explanation:

x=2

y=-2

slope= -2

y=mx+b

-2= -2(2) + b

-2= -4 +b

-2+4= b

2= b

Answer:

2=b through the slope -2=-2(2)+b

Answer:

YESSSSSSSSSSSSSSSSSS

i mean theres a ton of us we can over power them anytime!

[tex]{\small{\mathcal{\underline{\underline{\purple{ here \: is \: your \: solution...}}}}}} \\ \\ [/tex]

[tex]\small\mathfrak\green{sin ( \alpha ) =Perpendicular \div hypotenuse \: \: } \\ \\ \small\mathfrak\green{perpendicular =7 \: } \\ \\ \small\mathfrak\green{hypotenuse =25 \: } \\ \\ \small\mathfrak\green{sin( \alpha ) = 7 \div 25}[/tex]

[tex]{\small{\underline{\bf{\red{ Hope \: it \: helps...}}}}}[/tex]

Step-by-step explanation:

but you have to add or divide

Answer:

56.1

Step-by-step explanation:

Answer:

758803.5

Step-by-step explanation:

that's what i got- no idea if it's right though-

Answer:

pete brought 63 carrots

Step-by-step explanation:

70 x .90 = 63

Answer:

B

Step-by-step explanation:

I got this answer correct on a test