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Stels [109]
3 years ago
7

Really need some help on this please!

Mathematics
2 answers:
NeX [460]3 years ago
7 0
Amplitude is absolute value of (-4) = 4.
VLD [36.1K]3 years ago
7 0
Y = -4cos2x
y =-4(0.9995065604x)
y = -3.998026241x
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Marie ordered a root beer float at the ice cream shop. the float was $2, and she paid a 6% sales tax. how much did Marie pay for
podryga [215]
$2 (0.06)= 0.12
1
2.00+0.12= 2.12
7 0
3 years ago
Solve each equation. Explain your method.8.88=4.44(x−7)
omeli [17]
  • 8.88=4.44(x−7)

write the equation

  • 8.88 - 4.44=(x−7)

Transfer 4.44 to other side and it's sign changes from positive to negative

  • 4.44=(x−7)

After subtracting we will get result as 4.44

  • (x−7) = 4.44

Arrange the equation as variable always comes at left side.

  • x−7 = 4.44

open brakets

  • x = 4.44 + 7

transfer 7 to other side and it changes from - to + sign

  • x = 11.44
8 0
2 years ago
Read 2 more answers
2+2=? Because I’m trying to explain it to a 2 year old.
spayn [35]

Answer:

4

Step-by-step explanation:

1 + 1 + 1 + 1 = 2 + 2 = 4

6 0
3 years ago
4x - 2y = 5<br> y= 2x + 10
Helga [31]

Answer:

There is no solution

Step-by-step explanation:

4x - 2y = 5 --> 4x - 2(2x + 10) = 5

4x - 4x  - 20 = 5

4x - 4x -25 = 0

Final answer is -25 = 0 and so therefor it is no solution

7 0
2 years ago
Find the standard form of the equation for the circle with the following properties.
nataly862011 [7]

Answer:

(x+6)^2+(y+\frac{7}{6})^2=\frac{49}{36}

Step-by-step explanation:

So, we know that the center of the circle is at (-6, -7/6).

To find the equation of our circle that is tangent to the x-axis, we just need to find the vertical distance from our center to the x-axis.

Our center is at (-6, -7/6). The vertical distance from this to the x-axis directly above will be (-6, 0).

So, find our distance by subtracting our x-values:

d=r=0-(-7/6)

Subtract:

d=r=7/6

So, our distance, which is also our radius, will be 7/6.

Now, we can use the standard form for a circle, which is:

(x-h)^2+(y-k)^2=r^2

Where (h, k) is the center and r is the radius.

Substitute -6 for h, -7/6 for k, and 7/6 for r. This yields:

(x+6)^2+(y+\frac{7}{6})^2=\frac{49}{36}

We can confirm by graphing (using a calculator):

7 0
3 years ago
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