i realy need help please​

Answer:

Step-by-step explanation:

The solution is Option C.

The length of the diagonal of the rhombus is AC = 15.6 cm

A Rhombus has four sides of the same length, its perimeter can be determined using the formula Perimeter = 4a, where "a" stands for the side's length.

When the two diagonals of a rhombus are known,

The perimeter = 2√p² + q²

where 'p' and 'q' are the diagonals.

Given data ,

Let the diagonal of the rhombus be represented as ABCD

Now , the diagonals of the quadrilateral bisects at the angle O , and the quadrilateral is a rhombus

Substituting the values in the equation , we get

The measure of side AC = measure of side BD

And ,

The measure of side AO = The measure of side OC

So ,

The measure of side AC = 2 ( measure of side OC )

On simplifying the equation , we get

The measure of side AC = 2 x ( 7.8 ) cm

The measure of side AC = 15.6 cm

Hence , the measure of side AC is 15.6 cm

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Answer:

3.24

Step-by-step explanation:

1) minus the whole number, 3.6 from both sides:  

   x/2.7 +3.6 = 4.8 -----> x/2.7 = 1.2

2) multiply both sides by 2.7 to get the x value on its own:  

   x/2.7 = 1.2 -------> x = 3.24

3) finally x is on its own with a value on the other side... x = 3.24

4 MPH was her to speed

Answer:

5

Step-by-step explanation:

You will need the distance formula.

[tex]d = \sqrt{(x_2 - x_1)^2 + (y_2-y_1)^2}[/tex]

Now you can plug in your 2 points.

A([tex]x_{1}[/tex], [tex]y_{1}[/tex])

B([tex]x_{2}[/tex], [tex]y_{2}[/tex])

[tex]d = \sqrt{(-1 - (-4))^2 + (4-8)^2}[/tex]= 5

Answer:

False

Step-by-step explanation:

[tex]\frac{1}{6}[/tex]÷6 = [tex]\frac{1}{6}[/tex]×[tex]\frac{1}{6}[/tex]

Answer:

Multiply 123 times 2 (246) and then divide that by 56 and add 7 to get your final answer.

Answer:

The answer is 11

Step-by-step explanation:

Answer:

If you want a simple average, you can add all the speeds you see and divide them by the number of how many they are.  

So firstly you have to calculate the speed of the first point, which is:  

20 miles/0.5 hour

That means: 40 miles/hour

That would be your first "speed"

Then you calculate all of them :speed1+speed2+speed3 = something.  

As an example: 20miles/hr + 40miles/hr+0miles/hr = 60miles/hr

Then, you divide it by how many "speeds" they are: 60miles/hr divided by 3 if I continue my previous example.

It is my first answer, and I hope I could help you a bit!

Sorry for the awkward English, as it is not my mother tongue.

Step-by-step explanation:

Answer:

= 9.2p-3

Step-by-step explanation:

Answer:

The value of x is 29.

Step-by-step explanation:

4x-15+2x+21=180

6x+6=180

6x=174

x=29

Answer:

i think the answer is D

Step-by-step explanation:

Answer:

Infinite solution

Step-by-step explanation:

each is 1/3 when divided

Answer:

676.7

Step-by-step explanation:

Common standard form:

6.7(101) = 676.7

Standard form referring to scientific notation (if you're from Europe):

676.7 = 6.767 * 10^2

Answer: well

Step-by-step explanation:

Answer:

1 is the correct answer 3^10 +3^10

Answer:

4

is the correct answer because 3^5*2^2

3*3^5*2

6^10

Answer:

it opens downward

Step-by-step explanation:

Answer:

downward!

Step-by-step explanation:

The answer is 37.68

We need to find the area of the sector of the circle.

There is a missing part in the upper left part of the circle.

The upper left part central angle measure 90 degree becuase it has a perpendicular sign.

Using central angle and arc theorem, the central angle equal the arc measure so that arc measure is 90 degrees.

There is 360 degrees in a circle so using arc addition,

the rest of the arc measure 270 degrees.

We can use this formula to find the area of the sector

[tex] \frac{x}{360} \times \pi \times {r}^{2} [/tex]

where x is the measure of the central angle and r is the radius.

Plug 270 in for x. The radius is 4.

[tex] \frac{270}{360 } \times \pi \times {4}^{2} [/tex]

[tex] \frac{3}{4} \times \pi \times 16[/tex]

[tex]12\pi[/tex]

which is about

37.68

Answer:

14.14in cubed

Step-by-step explanation:

formula for volume of sphere is 4/3 x pi x radius to the power of three.

Since the diameter is 3, to find the radius we need to divide 3 by 2. So the radius is 1.5.

plug 1.5 in formula:

4/3 x pi x 1.5 to the power of 3

anwser: 14.14 or in terms of pi is 4.5pi inches cubed

Answer:

9?

Step-by-step explanation:

uhhhhhhhhhhhhhhhhhhhhhhhhhhh

Answer:

16

Step-by-step explanation:

If a negative exponent is in the denominator, move the expression to the numerator and make the exponent positive.

4²

Evaluate the power

16

Therefore the solution is 16

Answer:

A and E :)

Step-by-step explanation:

Answer:

i cant see the link try reposting

Step-by-step explanation:

Answer:

35%

Step-by-step explanation:

Answer:

x = 2

Step-by-step explanation:

f(x) = x + 8

f(x) = 10

10 = x + 8

minus 8 from the both sides

10 - 8 = x

2 = x

x = 2

Hope this is right correct me if im wrong!!!

Exponential function is a function between the dependent variable and independent variable in which the constant change in the independent variable gives the same proportional change in the dependent variable.

[tex]y=\dfrac{10}{3} \times 3^x[/tex]

Given information-

The exponential function [tex]f[/tex] takes the value 10 when,

[tex]x=1[/tex]

The exponential function [tex]f[/tex] takes the value 2 when,

[tex]x=2[/tex]

Exponential function is a function between the dependent variable and independent variable in which the constant change in the independent variable gives the same proportional change in the dependent variable.

The general form of the exponential function,

[tex]y=ab^x[/tex]

Here [tex]a[/tex] is the y intercept of the function and exponent of independent variable [tex]x[/tex].

The exponential function [tex]f[/tex] takes the value 10 when the value of x is 1.

thus,

[tex]10=ab^1\\10=ab\\a=\dfrac{10}{b}[/tex]

Let the above equation as equation number 1.

The exponential function [tex]f[/tex] takes the value 2 when the value of x is 2,

[tex]30=ab^2\\30=ab^2\\a=\dfrac{30}{b^2}[/tex]

Compare the values of a,

[tex]\frac{10}{b} =\frac{30}{b^2}\\ b=\dfrac{30}{10}\\ b=3[/tex]

Put the value of b in equation 1,

[tex]a=\dfrac{10}{3}[/tex]

Thus the y intercept of the function is 10/3.

Put the values to find the equation,

[tex]y=\dfrac{10}{3} \times 3^x[/tex]

Hence,

[tex]y=\dfrac{10}{3} \times 3^x[/tex]

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Answer:

[tex]Volume = 643.0\ in^3[/tex]

Step-by-step explanation:

Given

Dimension: 4.75in, 4.75in and 28.5in

[The complete dimension is missing from the question]

Required

Calculate the volume

The volume is calculated as thus:

[tex]Volume = 4.75in * 4.75in * 28.5in[/tex]

[tex]Volume = 643.03125in^3[/tex]

[tex]Volume = 643.0\ in^3[/tex] --- approximated

Answer:2x3+5x2-4x+6

Step-by-step explanation:

2x3+5x2-4x+6 is your answer