Evaluate the expression 2ac is a = 1/2 and c = 9.

Answers

Answer 1

Answer:

9

Step-by-step explanation:

the expression is 2ac, so multiply everything together

2 * 1/2 = 1

1 * 9 = 9

please give thanks by clicking the heart button! :)

Answer 2
The answer is nine! Hope this help:)

Related Questions

find the length of a square whose diagonal is 15cm​

Answers

2a^2 = 225
So a^2 = 225/2

A store spends 1/4 of its income on salaries and 1/6 of its income on advertising. If the store pays $150,000 for salaries, how much does it spend on advertising? Be sure to explain your reasoning.

Answers

Answer:

$100,000

Step-by-step explanation:

Let the total income of the store = [tex]\$x[/tex]

Total spends on salaries = [tex]\frac{1}{4}[/tex] of total income

Total spends on advertising = [tex]\frac{1}{6}[/tex] of total income

Also, we are given that:

Total money paid as salaries = $150,000

To find:

Total spends on advertising ?

Solution:

As per question statement, we can write the following equation:

[tex]\dfrac{1}{4}x =\$150000\\\Rightarrow x =\$150000\times 4\\\Rightarrow x = \$600000[/tex]

Now, as per the given statement, total spends on advertising are:

[tex]\dfrac{1}{6}x =\dfrac{1}{6}\times 600000 = \bold{\$100,000 }[/tex]

Therefore, the answer is $100,000

Only smart ppl know this ;)

Answers

Answer:

The answer is A

Step-by-step explanation:

Count all the x's. They add up to 8.

Hope this helped.

Answer:

A. There were 8 people who rode in the bicycle race.

Step-by-step explanation:

The line plot in the picture shows the distance in miles raced by Sophie's friends.

It's required to select one of the following options:

A. There were 8 people who rode in the bicycle race.

Since each x represents one person, and there are 8 x's, this statement is true.

B. More people rode 3/4 of a mile than 1/4 of a mile. There is only one x in 3/4 and 3 x's in 1/4. This is false

C. This option is false also, there were 5 people who rode 1/4 of a mile or 2/4 of a mile.

D. There were 2 people who rode 1 mile. False

3(-2x-1)=2(x+5)
the choices are
1.) -13/8
2.) -3/4
3.)13/8
4.) 3/4

Answers

Answer:

1) -13/8

Step-by-step explanation:

decimal form is -1.625

Will give the brainliest to the person who answers the question first and correctly!!

For the data set 4, 5, 10, 11, 15, the mean, x, is 9. What is the standard deviation?

Round to the nearest tenth.

A. 4.1

B. 20.5

C. 16.4

D. 4.5​

Answers

Answer:

D. 4.5​

Step-by-step explanation:

Can some one please help cause I don't understand it

Answers

C and D
It is what the other person said, but you can still mark them brainliest

Please help!!!!!!!!!

Answers

Answer:

D

Step-by-step explanation:

Using the cosine ratio in the right triangle

cos CBA = [tex]\frac{adjacent}{hypotenuse}[/tex] = [tex]\frac{BC}{AB}[/tex] = [tex]\frac{3}{9}[/tex] , thus

∠ CBA = [tex]cos^{-1}[/tex] ([tex]\frac{3}{9}[/tex] ) ≈ 70.53° ( to 2 dec. places )

10 + 5xy
How do I work this out and what is the answer?

Answers

Answer:

5(2+xy)

Step-by-step explanation:

10+5xy

Factor out 5 from the expression

thus,the answer is 5(2+xy)

Decide if the expressions in each pair are equivalent. Explain how you know.
x + x + x + x and 4x


5x and x + 5

Answers

Answer:

20x²+5x+5

Step-by-step explanation:

any more help just ask

The first expression is true because x+x+x+x= 4x. It is like addition but with a variable. The second isn’t true because 5x= x+x+x+x+x whereas x+5 is x plus five. Not 5x. Hope this helps.

What does the word “is” mean In math

Answers

The word "is" in math is commonly used right before saying the mathematical answer. See explanation below ↓

Example  ⇒ Two plus three minus one, the answer is 4.

I hope this helps you.

Please help me with this!!!!

Answers

The screen is blank.

5,9,13...
Find the 31st term

Answers

Answer:

a(31) =125

Step-by-step explanation:

d=9-5=13-9=4

then it is an arithmetic sequence

a(n) = a1 +(n-1)d

a(n) = 5 +(n-1)4

a(31) = 5 +(31-1)4

      =125

hope this helps

10(1 – 8x) + 7 what is the awnser

Answers

Answer:

40 + 7 = 47.    47 x 8  = 376

8 x 40 = 320      8 x 7 = 56

320 + 56 = 376

They equal the same.

Step-by-step explanation:

8x(40+7)=(8x40)+(8x7)

Answer:

1 Expand by distributing terms.

10-80x+710−80x+7

2 Collect like terms.

-80x+(10+7)−80x+(10+7)

3 Simplify.

-80x+17−80x+17

Step-by-step explanation:

What is the residual value of the point (6,11) from the line of best fit?

Answers

Answer:

bob

Step-by-step explanation:

ask your teacher

pls give an explanation u don't have to... I'll give brainly if right!​

Answers

Answer:

72.9

Step-by-step explanation:

Multiply your first 2 terms

4.5* (-9) = -40.5

multiply this by -1.8

-40.5*-1.8 = 72.9

Answer:

−72.9 / option B

Step-by-step explanation:

(4.5)(-9)(1.8)

Step 1: (4.5) x (-9) = (-40.5)

Step 2: (-40.5) x (1.8) = (-72.9)

Please help me out.​

Answers

Answer:

it's 4

Step-by-step explanation:

big brainnnnnnnnnn

15 so D both equal 53
Which the stamens says lesser or equal to, which in this case 53 is equal to 53

Hope this helped:)

Can someone help me answer these 3 questions please

Answers

Answer:

1,NO

2,Just divide the square rooted number with the numbers that square it.

3,Negative

Answer:

1,no

2,by the same word multiplying and the get square root of a number

3,negative

which statement is true about the solution ?

Answers

Answer:

There are no real solutions to this equation

Step-by-step explanation:

I need you to give me all of the answers on the page (i answered 2 to show how you will be doing it)

When you tell me the answers make it like this: 3:### 4:### or something like that.

Answers

Answer:

3. 72= (x)+(x+1)+(x+2) where x= the smallest number

72=3x+3

-3        -3

69=3x

/3   /3

x=23

x+1=24

x+2=25

smallest is 23

4. 48= (x)+(x+2)+(x+4)

48= 3x+6

-6        -6

42=3x

/3    /3

x=14

x+2=16

x+4=18

smallest is 14

5. all erasers were the same cost

25= 4x+5 (x= cost of erasers)

-5         -5

20=4x

/4   /4

x=5

each cost  $5

6. b= boxes

22= b/2 +7

-7            -7

15=b/2

multiply both sides by 2 to cancel the denominator

30=b

30 boxes originally

7. 40= total

8= left

2= balls given to each

x=number of friends

40= 2x+8

-8         -8

32=2x

/2   /2

x=16

she has 16 friends

8.  12= left

a= total allowance

12= (a/2) +4

-4            -4

8= a/2

multiply both sides by 2 to cancel the denominator

a= $16

she had an allowance of $16

9.  4 (2) = amount that her four children recieved

10=amount she took for herself

x= original

x= 4(2) + 10

x= 8 +10

x=18

she started with 18 candies

10. a= age

244= 400 - 2a

-400 -400

-156= -2a

/-2     /-2

a= 78

they are 78 years old

11. c= comic books

36=  c/2 + 16

-16           -16

20=c/2

multiply both sides by 2 to cancel the denominator

c=40

she started with 40 comic books

12.  b= students in buses

472= 9b + 4

-4             -4

468=9b

/9     /9

b= 52

52 students went in each bus

13. h= hats

17= h/2 +5

-5          -5

12=h/2

multiply both sides by 2 to cancel the denominator

h=24

she had 24 hats on monday

14. p= pies the club made

60= (p+4)/5

multiply both sides by 5 to cancel the denominator

300=p+4

-4         -4

p= 296

the club made 296 pies

Step-by-step explanation:

Say 5 of your favorite things and whoever has the most of my favorite stuff gets brainlest

Answers

Answer:

food, video games, sports, naps, music  

Step-by-step explanation:

a discount of 15% is allowed on an article. If a customer received 600.00 discount. find the actual paid on the article​

Answers

Answer:

Step-by-step explanation:

if 600 represents ........................15%

     x.................................................100%

(600*100)/15=4000

the customer paid

4000-600=3400

Will someone help me with this one I'll give 18 points and brainliest
(A)TRUE
(B)FALSE

Answers

Answer:

a true

Step-by-step explanation:

hope this helps please give me brainliest

HELP!!!
Which question is not a linear equation?
1. -4v +2w = 7
2. x/4 = y
3. x = -5
4. 2/x + 3/y = 6

Answers

4. 2/x + 3/y = 6 is not a linear equation!:)

Dahlia noticed that her tomato plant grew new leaves at a steady rate, after the plant sprouted. She recorded the number of leaves on her plant on various days (see table) how many leaves should she expect on the 32nd day

Answers

Answer:

D; 85 leaves

Step-by-step explanation:

From what we can see, each 4 days there is a growth of an additional 9 leaves

So for the 20th day, we can see 58

The difference between the 20th and 32nd day is 12

The number of 4s we can see here is 12/4 = 3

For each 4, we can count extra 9 leaves

So for the 12, the number of leaves we can count is 3 * 9 = 27

we proceed to add this to 58

That will yield 58 + 27 = 85

It's c Bye bye have a amazing day

a=(5,8)
b=(3,2)
c=(-1,6)
d=(-3,-4)
*find the gradient of the line that passes through points a and b
*find the gradient of the line that passes through points c and d
*find the gradient of the line that passes through points a and d
god bless anyone who can do this sh <3

Answers

Step-by-step explanation:

Gradient of line AB = 6/2 = 3.

Gradient of line CD = 10/2 = 5.

Gradient of line AD = 12/8 = 1.5.

For Spring Break, Jenny and her friends are planning a road trip from Houston, Texas, to Los Angeles, California. With almost all of the trip on Interstate 10, the total distance will be 1,740 miles one-way. If they average 70 miles per hour on the trip, to the nearest half hour, how long will it take Jenny and her friends to get there?

Answers

Answer: 24.9 hours

Step-by-step explanation:

They are travelling a total distance of 1,740 miles at a speed of 70 miles per hour. Assuming they do not rest, they will take:

Time = Distance/ Speed

= 1,740/70

= 24.9 hours

Sophia had 64¢ until she spent 1 quarter. How much money does Sophia have now?

Answers

Answer:

Sophia now has 39 cents.

Step-by-step explanation:

One quarter = 25 cents

Since Sophia had 64 cents until she spent 25 cents (1 quarter).

So we subtract 25 cents from 64 cents.

[tex] \: \: \: 64 \: cents \\ \frac{ - 25 \: cents}{ \: \: \: 39 \: cents} [/tex]

Therefore, Sophia now has 39 cents.


PLEASE HELP! 13 POINTS

jacks mom purchased a savings bond for jack. the value of the savings bond increases by 5% each year. one year after it was purchased, the value of the savings bond was $210. find the value of the bond when jacks mom purchased it.

Answers

The value of the bond was $200. Assuming the increase was 5% of the initial value. We can estimate that 210 is 105% of the initial value. Set up the equation 105/100 X 210/i. And you should get 200.

Graph the functions on the same coordinate axis.
[f) =x+ 1
lelx) =x- 6x-7
What are the solutions to the system of equations?
Select each corect answer.
O (1, 2)
o (6, 7)
O(-1, 0)
O(-8, - 7)
(8, 9)
2 3 4 6 7 8 9

Answers

Answer:

here you go - (-1,0) and (8,9)

Arrange the systems of equations that have a single solution in Increasing order of the x-values in their solutions.
2x + y = 10
(x-3y=-2
x + 2y = 5
2x + y = 4
x + 3y = 5
6x - y = 11
2x + y = 10
- 6x - 3y = -2
HELP

Answers

Complete question is;

Arrange the systems of equations that have a single solution in Increasing order of the x-values in their solutions.

1) 2x + y = 10

x - 3y = -2

2) x + 2y = 5

2x + y = 4

3) x + 3y = 5

6x - y = 11

4) 2x + y = 10

-6x - 3y = -2

Answer:

Arranging the systems in increasing value of x gives;

System 2, system 3, system 1

Step-by-step explanation:

1) 2x + y = 10 - - - (eq 1)

x - 3y = -2 - - - (eq 2)

Multiply eq 1 by 3 to get;

6x + 3y = 30

Add it to eq 2 to get;

7x = 28

x = 28/7

x = 4

2) x + 2y = 5 - - - (eq 1)

2x + y = 4 - - - (eq 2)

Multiply eq 2 by 2 to get;

4x + 2y = 8

Subtract eq 1 from it to get;

3x = 3

x = 3/3

x = 1

3) x + 3y = 5 - - - (eq 1)

6x - y = 11 - - - (eq 2)

Multiply eq 2 by 3 to get;

18x - 3y = 33

Add to eq(1) to get;

19x = 38

x = 38/19

x = 2

4) 2x + y = 10 - - - (eq 1)

-6x - 3y = -2 - - - (eq 2)

Make y the subject in eq 1 to get;

y = 10 - 2x

Put in eq (2);

-6x - 3(10 - 2x) = -2

-6x - 30 + 6x = -2

0 = 0

Thus,no solution exists.

Arranging the systems in increasing value of x gives;

System 2, system 3, system 1

Answer:

The person above me is correct.

Step-by-step explanation:

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