how to find a in this ?​

Answer:

956300000000

Step-by-step explanation:

Move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the 10. If the decimal is being moved to the right, the exponent will be negative. If the decimal is being moved to the left, the exponent will be positive.  9.563  ×  10 ^11

The result can be shown in multiple forms.

Scientific Notation:

9.563  x  10 ^11

Expanded Form:

956300000000

Answer:

956300000000

Step-by-step explanation:

Answer:

h(2) = 20

Step-by-step explanation:

h(x) = 10x - x^2 + 4

Let x = 2

h(2) = 10*2 - 2^2 + 4

       =20 -4+4

       =20

Answer:

SOLUTION

First, we write the augmented matrix.

⎡

⎢

⎣

1

−

1

1

2

3

−

1

3

−

2

−

9

|

8

−

2

9

⎤

⎥

⎦

Next, we perform row operations to obtain row-echelon form.

−

2

R

1

+

R

2

=

R

2

→

⎡

⎢

⎣

1

−

1

1

0

5

−

3

3

−

2

−

9

|

8

−

18

9

⎤

⎥

⎦

−

3

R

1

+

R

3

=

R

3

→

⎡

⎢

⎣

1

−

1

1

0

5

−

3

0

1

−

12

|

8

−

18

−

15

⎤

⎥

⎦

The easiest way to obtain a 1 in row 2 of column 1 is to interchange \displaystyle {R}_{2}R

​2

​​  and \displaystyle {R}_{3}R

​3

​​ .

Interchange

R

2

and

R

3

→

⎡

⎢

⎣

1

−

1

1

8

0

1

−

12

−

15

0

5

−

3

−

18

⎤

⎥

⎦

Then

−

5

R

2

+

R

3

=

R

3

→

⎡

⎢

⎣

1

−

1

1

0

1

−

12

0

0

57

|

8

−

15

57

⎤

⎥

⎦

−

1

57

R

3

=

R

3

→

⎡

⎢

⎣

1

−

1

1

0

1

−

12

0

0

1

|

8

−

15

1

⎤

⎥

⎦

The last matrix represents the equivalent system.

x

−

y

+

z

=

8

y

−

12

z

=

−

15

z

=

1

Using back-substitution, we obtain the solution as \displaystyle \left(4,-3,1\right)(4,−3,1).

Step-by-step explanation:

Answer:

3/5

Step-by-step explanation:

3/5 is .6 and 1/2 is .5

.6 is the bigger number.

Answer:

SAT

Step-by-step explanation:

The two main college entrance exams are the SAT and ACT which are used for almost all colleges in the United States. Between these two the SAT has a lesser focus on math in general. Instead, the SAT tends to focus more on word problems and the process taken to solve them. This does not mean that it has no math at all, there is still a math section on the SAT's but it is not as extensive as in the ACT's.

Answer:

8

Step-by-step explanation:

simple, divide 24/3 and you get your answer.

why?

because when you divide 3(game) by 24(score) you get how much score you get per 1 game.

same if you divide for 32/4 and 5/40, you get the same answer.

Answer:

f(3)=5

f(0)= -7

Step-by-step explanation:

replace

4(3)-7

f(3)=5

f(0)=4(0)-7

f(0)=0-7

f(0)= -7

Answer:

1. is "B"

2. is "F"

Explanation:

1. Divide $46,650 by 0.07 and you get $3.265.50

2.Add $62.75 and $14.25 and you get $77 multiplying that by 0.08 and you get $6.16. Another way to do this is by multiplying each number by 0.08 and adding the products together.

Answer:

b & f. ty for the points to :)))

Step-by-step explanation:

Answer:

x=13 and y=sqrt338

Step-by-step explanation:

so basically the opposite of one of the 45 degrees is 13 so the other 45 degrees is 13 too and you find pythagorean theorem of the other one

Answer:

4.6

Step-by-step explanation:

Step 1:

AR + RB = AB     Equation

Step 2:

5x - 6 + 8 = 25     Substitute

Step 3:

5x + 2 = 25    Add

Step 4:

5x = 23       Subtract 2 on both sides

Step 5:

23 ÷ 5   Divide

Answer:

x = 4.6

Hope This Helps :)

Answer:4.6

Step-by-step explanation:

Answer:

11

Step-by-step explanation:

Answer:

b

Step-by-step explanation:

51*2=102

180-102=78

78 = (4x-3)(2)

78 = 8x - 6

84 = 8x

x = 10.5

I’m dying insidetooooooooo

Answer:

21

Step-by-step explanation:

there are 7 students and 3 prizes so all you needed to do was multiply 3 by 7 or 7 by 3.

Answer:

35 different ways!

Step-by-step explanation:

7! / 3! * (4!)

If you know combinations and permutations, then the above formula will make sense.

Since this question is asking for all possible combinations, it's this formula if you don't know it:

n! / r! (n - r)!

n is the total number of things, which in this case are people. So, we get 7 and r is the set amount of the things used at a time which is 3... because out of 7 people only 3 can win gift cards.

Hope this helps!

Answer: x = 2

Hope this helps!

Answer:

Step-by-step explanation:

8b - 7 = 7b - 2

Bringing like terms on one side

8b - 7b = - 2 + 7

B = 5

-12 + 5k = 15 - 4k

Bringing like terms on one side

5k + 4k = 15 + 12

9k = 27

k = 27/9 = 3

Answer:

C. -25

Step-by-step explanation:

Since the current number is -55, it depicts the number to achieve the target.

That is the current position states that we require 55 more units to produce.

If we produce 30 more units in an hour, we shall require 55 - 30 = 25 more units to produce, in order to achieve target.

Since target is decreased by 30, but yet not achieved completely it will still be a negative number.

Thus, the correct answer is

C. -25

This depicts that achieved volume of units is short by 25 units in order to achieve the target.

Answer:

7

Step-by-step explanation:

Answer:

the answers is b. 5

Explanation:

5 is in between points -2 and 12.

Answer:

b) -12 , -8 , -4, 0

Step-by-step explanation:

-12 + 4(n - 1)

n means the term

place the values of  1, 2, 3 and 4

-12 + 4(1-1) = -12

-12 + 4(2-1) = -8

-12 + 4(3-1) = -4

-12 + 4(4-1) = 0

hence the answer is

b) -12 , -8 , -4, 0

Answer: 33

Step-by-step explanation:

Hi there! :)

a) (ii) The two angles are vertical angles, so they are congruent.

b)(i) y = 71°

  (ii) The two angles are alternate interior angles, so they are congruent.

c) z = 44°

(ii) m∠x = 65° because the two angles are vertical angles, so they are congruent.

b) (i)

∠y is an alternate interior angle, therefore:

m∠y = 71°

c) Use the sum of interior angles of a triangle to determine the measure of angle z:

180 = 65 + 71 + z

180 = 136 + z

180 - 136 = z

z = 44°.

Answer:

h = A*2/a+b

Step-by-step explanation:

Answer:

Step-by-step explanation:

Expression

And

The amount is

Answer:

$661.25

Step-by-step explanation:

25(16) + 15(8) + 141.25

400 + 120 + 141.25

520 + 141.25

661.25

Best of Luck!

by using distance formulae

Answer:

i don't see nothing

Step-by-step explanation:

Answer:

x=1±i√5

Step-by-step explanation:

the quadratic equation is in the form :

y=ax²+bx+c

y= 2x²-4x+12

x=(-b±√b²-4ac)/2a

x=-(-4)±√-4²-4(2)(12)/2a

x=4±√16-96/4

x=4±√-80/4

since the number under the square root then √-80=4i√5 ( assuming possitive numbers)

x=(4±4i√5)/4

x=4(1±i√5)/4

x=1±i√5

Answer:

2x + 5 = 13

take away 5 from both sides

2x = 8

divide both sides by 2

x = 4

Step-by-step explanation:

Answer:

6

Step-by-step explanation:

      90

-------------------

10 + (3^2 - 4)

first we look at the parenthesis. take 3 to the second power, and it equals 9

     90

------------------

10 + (9 - 4)

next, still in the parenthesis you subtract 4 from 9

   90

--------------

10 + (5)

next add 10 plus 5

90

-------   =       6

 15

now divide 90 by 15 and you get your answer, 6

Find the median of the given data. If the mean is 4.5...

5, 7, 7, 8,x,5,4,3 = x, 3, 4, 5, 5, 7, 7, 8

The median is 5. For the second part... The question is incomplete... “If the mean is 4.5...” Also, I have no idea if x should have been added or not. Even if it was, it doesn’t change the answer.

Hi!

Your answer should be: -2x= 10

Reason being: -2+3= 0

So this must mean: x=10

Because 10+3=13

Hope this helps!

Yours truly,

Answer:

x = -5

Step-by-step explanation:

-2x = 13-3

-2x = 10

x/-2 = 10/-2

x = -5