MATHEMATICS HIGH SCHOOL

Which expression is equivalent to 64 – 9x^2?A(32)^2 – (3x)^2
B(32)^2 + (-3x)2
C(8)^2 – (3x)^2
D(8)^2 + (-3x)^2

Answers

Answer 1
Answer:

Answer:

Option C is correct

Step-by-step explanation:

A = 64 - 9x^2

   = 8^2 - (3^2)(x^2)

   = 8^2 - (3x)^2

Hope this helps!

Related Questions

Solve for x:    x to the negative 3rd power is equal to 27 over 64
the sides of a triangle have lengths of x, x+5, and 25. if the longest side is 25, which of the following values of x would make the right triangle?
The equation for the circle below is x2 + y2 = 100. What is the length of thecircle's radius?
Which relation is a function of x? {(1, 2), (7, 6), (3, 2), (1, 0), (5, 6)} A 2-column table with 4 rows. Column 1 is labeled x with entries 0, 0, 0, 0. Column 2 is labeled y with entries 2, negative 6, 9, negative 7. x = 3 y squared minus 7 On a coordinate plane, a graph curves up, then curves down, and then curves up again. please comment i cant see answers thank you! :)
Find the surface area. 3in. 2in. 6in. 2in. 4in.​

Write the equation of the line that passes through (2, 3) and is parallel to the line 12x – 5y = 2.

Answers

         12x - 5y = 2
12x - 12x - 5y = -12x + 2
                 -5y = -12x + 2
                  -5          -5
                    y = 2.4x - 0.4
               y - 3 = 2.4(x - 3)
               y - 3 = 2.4(x) - 2.4(3)
               y - 3 = 2.4x - 7.2
                 + 3           + 3
                    y = 2.4x - 4.2

Answer:

A

Step-by-step explanation:

y=12/5x-9/5

Match the following problems with their answer, HELP ME PLEASE!!!!!

Answers

Answer:

1. 12.5%

2. 26%

3. 51

4. 16

Step-by-step explanation:

3/24=0.125 -> 12.5%

65/250=0.26 -> 26%

300*0.17=51

0.4*40=16

I Prove that Cos(90-θ)/1+sin(90-θ) +1+sin(90-θ) /cos(90-θ) =2

Answers

Okay,

so first you gotta know that cos(90-x) is equal to sinx and sin(90-x) is equal to cosx!!
Now all you gotta do is replace the cos(90-x) to sinx in the numerator and sin(90-x) to cosx in the denomenator inorder to make the numerator all into sin and denomenator all into cos.
After that, open up the brackets and solve...
At the end you'll hopefully get something like this :( 1+sin90 ÷ 1+cos90 )
And since sin90 is 1 (put it in the calculator!) and cos90 is 0, you'll get 2÷1 which is equals to 2!!

Hope this helped!  :)
(cos(90 - \theta))/(1 + sin(90 - \theta)) + (1 + sin(90 - \theta))/(cos(90 - \theta)) = 2
((cos(90 - \theta))(cos(90 - \theta)))/((1 + sin(90 - \theta))(cos(90 - \theta))) + ((1 + sin(90 - \theta))(1 + sin(90 - \theta)))/((1 + sin(90 - \theta))(cos(90 - \theta))) = 2
(cos^(2)(90 - \theta))/(cos(90 - \theta) + sin(90 - \theta)cos(90 - \theta)) + (1 + 2sin(90 - \theta) + sin^(2)(90 - \theta))/(cos(90 - \theta) + sin(90 - \theta)cos(90 - \theta)) = 2
(cos^(2)(90 - \theta) + 1 + 2sin(90 - \theta) + sin^(2)(90 - \theta))/(cos(90 - \theta) + sin(90 - \theta)) = 2
(1 + 1 + 2sin(90 - \theta))/(cos(90 - \theta) + sin(90 - \theta)) = 2
(2 + 2sin(90 - \theta))/(cos(90 - \theta) + sin(90 - \theta)) = 2
(2(1 + sin(90 - \theta)))/(cos(90 - \theta)(1 + sin(90 - \theta))) = 2
(2)/(cos(90 - \theta)) = 2
(2)/(cos(90)cos(\theta) + sin(90)sin(\theta)) = 2

Solve 2^x=3. round to the nearest ten thousandth

Answers

Answer:

The solution of the expression is x=1.584.          

Step-by-step explanation:

Given : Expression 2^x=3

To find : Solve the expression round to the nearest ten thousandth?

Solution :  

Step 1 - Write the expression,

2^x=3

Step 2 - Taking log both side,

\log (2^x)=\log (3)

Step 3 - Apply logarithmic property, \log a^x=x\log a

x\log (2)=\log (3)

Step 4 - Solve,

x=(\log (3))/(\log (2))

x=(0.477)/(0.301)

x=1.584

Therefore, The solution of the expression is x=1.584.
2^(x) = 3
log_(2)3 = x
(log_3)/(log_2) = x
x = 1.585

What is the answer 6 7/8 - 1 2/8

Answers

6 7/8
- 1 2/8
_______
5 5/8

Make sense?
6 7/8 - 1 2/8 = 5 5/8          (6 - 1 = 5)          (7 - 2 = 5)    
The eight stay the same thing because the denominator is the same if the denominator is not the same so we do the lowest common denominator (LCD).

−4x + 15= -13
what is x?

Answers

-4x+15=-13 \ \ \ |-15 \n \n -4x=-28 \ \ \ |:(-4) \n \n x=7

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

"Associate with people who are likely to improve you."
solve your equation step-by-step.

−4x+15=−13

Subtract 15 from both sides.

−4x+15−15=−13−15

−4x=−28

Divide both sides by -4.

−4x/−4 = −28/−4

x=7
Other Questions
Use the following figure to answer the question.When line t is perpendicular to both line l and line m, then lines l and m are parallel.TrueFalse
Which equation can be used to find one multiple of 16?
A rectangular plot of ground is 5 meters longer than it is wide. Its area is 20,000 square meters.which equation will help you find dimensions?Let w=widtha- w+2(w+5)=20,000b- w(w+5)=20,000c- (w(w+5))/2 = 20,000d- w^2=20,000+5
What is the factored form of 125x6 – 8?(5x2 – 2)(25x4 – 10x2 – 4) (5x2 – 2)(25x4 – 10x2 + 4) (5x2 – 2)(25x4 + 10x2 + 4) (5x2 – 2)(25x4 + 10x2 – 4)