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
Arada [10]
3 years ago
8

2a - b for a = 2 and b = 3.

Mathematics
2 answers:
lara31 [8.8K]3 years ago
7 0

Answer: 1

Step-by-step explanation: if a=2 then it would be 2 x 2 which is 4 and the minus 3 which is 1

liubo4ka [24]3 years ago
4 0

Answer:

1

Step-by-step explanation:

2(2)-3

2x2 is 4

4-1 is 3

You might be interested in
Brianna and let kelci are raising money for a class field trip. Brianna has raised 3 times more money than kelci, but together t
ddd [48]
Let $x be the amount of money which Kelci has raised. <span>Brianna has raised 3 times more money than kelci, then she has raised $3x. Totally both have aised $(x+3x)=$4x.
</span>
Since <span>together they have raised more than $300, then 4x>300,
</span>
x\ \textgreater \  \dfrac{300}{4}.
Answer: the <span>inequality  </span><span><span>x\ \textgreater \  \dfrac{300}{4} </span>can be used to determine the amount of money kelci has raised</span>


7 0
4 years ago
The measure of the angle turns through 1 over 9 of the cicle the angle measure can be found using the expressions
skad [1K]

Answer:

1-9 the answer is -8of the circle

Step-by-step explanation:

7 0
3 years ago
Solve the equations for all values of x by completing the square x^2+62=-16x
lorasvet [3.4K]

Answer:

x =  \sqrt{2} - 8\\x =  -\sqrt{2} - 8

Step-by-step explanation:

To complete the square, we first have to get our equation into ax^2 + bx = c form.

First we add 16x to both sides:

x^2 + 16x + 62 = 0

And now we subtract 62 from both sides.

x^2 + 16x = -62

We now have to add (\frac{b}{2})^2 to both sides of the equation. b is 16, so this value becomes (16\div2)^2 = 8^2 = 64.

x^2 + 16x + 64 = -62+64

We can now write the left side of the equation as a perfect square. We know that x+8 will be the solution because 8\cdot8=64 and 8+8=16.

(x+8)^2 = -62 + 64

We can now take the square root of both sides.

x+8 = \sqrt{-62+64}\\\\ x+8 = \pm \sqrt{2}

We can now isolate x on one side by subtracting 8 from both sides.

x = \pm\sqrt{2} - 8

So our solutions are

x =  \sqrt{2} - 8\\x =  -\sqrt{2} - 8

Hope this helped!

4 0
3 years ago
Negative nine is greater than or equal to the sum of two - fifths times a number and 9.
Bumek [7]

Answer:

W is either -22.5, or less than -22.5

Step-by-step explanation:

-9>=2/5 times w (I wasn't sure what you meant by "and" 9. Like 9w?)

W has to be a negative number, or else it would be greater than 9, which would make the equation wrong.

2/5 times -22 1/2=-9. So w can be -22 1/2 or -22.5

W can then be anything "lower" (on the left side) of -22.5.

W<-22.5

5 0
3 years ago
1. Find the compound interest and maturity value if P = P43,000, with a rate of 5% is compounded semi-annually for 6 years.​
Leno4ka [110]

The Answer is that the present value of $100 is $100. Because this $100 dollar is deposited today so the time is equal to zero and when time is zero the value of amount is the value of amount itself.

7 0
2 years ago
Other questions:
  • A staircase handrail is made from congruent parallelograms. in parallelogrampqrs, pq = 17.5, st = 18, and m∠ qrs = 110° . find m
    15·1 answer
  • NEED HELP, PLEASE SHOW WORK. :(((
    7·1 answer
  • A model train uses a scale of 148. One car of the model train is 6 inches long
    15·1 answer
  • One number is 5 times another number. The product of the two numbers is 245. Find the two numbers
    8·2 answers
  • Pls help me with geometry
    5·1 answer
  • Can someone help me?
    15·1 answer
  • "Three times a number increased by eleven is seventeen" translates to which of the following equations?
    7·2 answers
  • .......<br> .......<br> .......<br><br> =5
    13·1 answer
  • On a number line, graph all the temperature that are warmer than -2 degrees Celsius
    8·1 answer
  • -please help im so dum dum and id like therapy &lt; &lt;&lt;&lt;&lt;&lt;&lt;&lt;&lt;33333333 TYY
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!