1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Anton [14]
3 years ago
11

Barbie is thinking of a number 20 less than one-third of the number is 72 find barbie's number

Mathematics
1 answer:
ExtremeBDS [4]3 years ago
4 0
Let x = Barbie's number
1/3 x -20 = 72
1/3 x = 92
x = 92*3=276
You might be interested in
7. Geometry Which set of ordered pairs can be
JulsSmile [24]
I dunno budddddddxddddd
3 0
3 years ago
Read 2 more answers
2cos^2x = 1 <br><br> Solve for 0-360 degrees
Tems11 [23]

Answer:

45,135,315,225

Step-by-step explanation:

2cos^2x = 1

Divide each side by 2

cos^2x = 1/2

Take the square root of each side

sqrt( cos^2 x) = ±sqrt (1/2)

cos x  =±sqrt (1/2)

Make into two separate equations

cos x  =sqrt (1/2)    cos x = - sqrt(1/2)

Take the inverse cos of each side

cos ^-1 cos (x) = cos ^-1 (sqrt (1/2))   cos ^-1 cos (x) = cos ^-1 (-sqrt (1/2))

x = cos ^-1 (sqrt (1/2))   x = cos ^-1 (-sqrt (1/2))

x = 45  +360 n              x = 135+ 360n

x = 315+360 n               x =225+360n

Between 0 and 360

45,135,315,225

5 0
3 years ago
Read 2 more answers
In 2008 a house is worth $350 000.
julsineya [31]

Answer:

The value of 2008 is 112% of the Value of 2007.

But we need 100% of the year of 2007.

So 350000/112=3125=>1%

3125*100=312500=>100%

The answer is $312500

3 0
3 years ago
Read 2 more answers
Which graph represents a vertical translation by 4 units down of the function f(x)=2x?
KATRIN_1 [288]
F(x)=2x-4

4 units DOWN would mean that the k-value is -4, which is put at the very end of the equation. hope this helped!
3 0
3 years ago
Complete the sentence by selecting the correct phrase. The expression (a2−)2−(b2)2 is an example of: a system of equations, a po
ss7ja [257]

Answer:

a difference of squares

Step-by-step explanation:

Let's write down the expression:

(a^2)^2 -(b^2)^2

we can see that this expression is one of the form x^2 -y^2 which is the general expression of a difference of squares.

To be more specific and to see why we say this, let's make x=a^2 and y=b^2

Now, if we substitute this in the general formula, we get:

x^2 -y^2 =(a^2)^2 -(b^2)^2

Thus, this expression is a difference of squares.

4 0
3 years ago
Other questions:
  • A figure has rotation symmetry if there is a rotation by an angle of 0 &lt; theta &lt; ______° around a point that results in th
    11·1 answer
  • For a haircut ang style Karl was charged $25.She wanted to give the stylist a 15% tip
    12·1 answer
  • I have way more questions than this answer them if you want pleaseee!!
    15·1 answer
  • Please help me someone
    14·1 answer
  • Biught 820 books and 34 books on a shelf how many shelves
    9·1 answer
  • Please solve these questions on the topic of exponents
    12·1 answer
  • A number and its absolute value are equal. If you subtract two from the number, the new number and its absolute value are not eq
    13·1 answer
  • Victoria wants to save $500 for a vacation. She plans on saving $20 a day. If she already has $160 saved, what is the minimum nu
    7·1 answer
  • 7 million as a percentage of 32 million
    7·1 answer
  • Help................................................
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!