Answer:
2√5-4(3√5-2)
6√25-4√5-12√5+8
6(5)-16√5+8
30+8-16√5
38-16√5
ILL GIVE BRAINLEST
The difference between 3 times a number x and 2 is 19. What is the value of x?
A. 7
B. 6
C. 5
D. 1
Answer:
A. 7
good luck, i hope this helps :)
a box contains 24 balls , some of which are red, some of which are green , and the rest are blue . the probabilities of drawing a red ball and a green ball at random from the box are 1\3 and 1\6 respectively . find the number of blue balls in the bag.
Step-by-step explanation:
I think it's 15 but I'm not sure
I need to find the value of x
Answer:
52
is this the answer
Answer:
x = 5
Step-by-step explanation:
2x-3 = x+2
x= 2x-5
-x = -5
(Subraction sign gets cancelled)
Thus, x=5
Please explain how to do this
9514 1404 393
Answer:
1/2
Step-by-step explanation:
The rules of exponents are helpful.
(a^b)^c = a^(bc)
a^-b = 1/a^b
__
[tex]25^{\frac{1}{2}}\times10^{-1}=\dfrac{(5^2)^{\frac{1}{2}}}{10^1}=\dfrac{5^{2\cdot\frac{1}{2}}}{10}\\\\=\dfrac{5^1}{10}=\dfrac{5}{10}=\boxed{\dfrac{1}{2}}[/tex]
Solve the inequality.
-3.25y <-61.75
Step-by-step explanation:
-3.25y < -61.75
-3.25y < -61.75
-3.25. -3.25
whenever an inequality is divided by a negative number the sign changes, so if the sign of the inequality is greater than( > ) it becomes less than( < ) or the other way around. In this case the less than will be greater than.
y > 19 , S.S= [ 20,21,22,23.....]
A.if all 110 million households spent the same additional dollars on appliances, electronics, and furniture as the sample 30,000 rebate receiving households did so, how much did the aggregate consumption increase?
B. If the MPC was 0.9, how much would the cumulative spending increase as a result?
Answer:
Step-by-step explanation:
B. 10010 million
C. 100100
how much did he spend on the cookir
69 69
69 69
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The system of equations y = 2x + 5 and y = –3x – 15 is shown on the graph below.
On a coordinate plane, 2 lines intersect at (negative 4, negative 3).
According to the graph, what is the solution to this system of equations?
(–4, –3)
(–3, –4)
(–5, 5)
(5, –5)
Answer: A
Explanation:
Answer:
A. (–4, –3)
Step-by-step explanation:
This is in case any one else had the answer on a different letter.
What is the area of the fire pit? (Use 3.14 for pi.)
Answer:
[tex]Area = 65.94[/tex]
Step-by-step explanation:
I will assume that the shaded region is the fire pit
Given
[tex]R = 5[/tex]
[tex]r = 2[/tex]
Required
Determine the area of the fire pit
First, calculate the area of the big circle.
[tex]A_2 = \pi R^2[/tex]
Area of the small is:
[tex]A_1 = \pi r^2[/tex]
The area of the pit is:
[tex]Area = A_2 - A_1[/tex]
[tex]Area = \pi R^2 - \pi r^2[/tex]
[tex]Area = \pi (R^2 - r^2)[/tex]
[tex]Area = 3.14 (5^2 - 2^2)[/tex]
[tex]Area = 3.14 (25 - 4)[/tex]
[tex]Area = 3.14 * 21[/tex]
[tex]Area = 65.94[/tex]
How to write and graph at least 10 on a number line as a inequality
Answer:
x≥10
draw a number line, plot 10, put a dot on top of 10 and draw an arrow from the dot all the way to right
Step-by-step explanation:
Quick help!!Also number 17!
Answer:
16. 29 and 30
17. C. 30 D. 31
Step-by-step explanation:
16. Given the inequality c ≤ $30, which is used to represent the situation, it implies that possible value of c must be equal to $30 or less than $30.
Two possible solutions form the options given would be:
29 and 30.
29 is less than 30, and 30 is equal to 30.
17. The inequality given is b ≥ 30.
This implies that possible solutions will be equal to 30 or greater than 30. It cannot be less than 30.
The solutions that apply would be:
30 (this is equal to 30) and 31 (this is greater than 30).
The remaining options don't satisfy or make the inequality statement true.
A field of grass feeds 28 cows for 6 days. How many days would the same field feed 21 cows?
Answer:
Step-by-step explanation:
28 cows × 6 days = 168 cow-days
(168 cow-days)/(21 cows) = 8 days
If a field of grass feeds 28 cows for 6 days, the number of days that the same field would feed 21 cows is 8 days.
How to calculate number of days?This question involves the use of inverse proportion to solve.
According to this question, a field of grass feeds 28 cows for 6 days. The number of days it would take 21 cows is calculated as follows:
28 cows is fed for 6 days
21 cows will be fed for (28 × 6) ÷ 21 = 8 days.
Therefore, If a field of grass feeds 28 cows for 6 days, the number of days that the same field would feed 21 cows is 8 days.
Learn more about inverse proportion at: https://brainly.com/question/2548537
#SPJ2
In the rectangle below what is X?
Answer:
X= 82°
Step-by-step explanation:
Since we know ∠DAB is 41°, we also know that ∠CBA is 41°, since they must be equal. This tells us that the bottom angle of that triangle must be 98°, since the sum of all interior angles must equal 180°. Since this angle is supplementary to x, we know that x must equal 82°.
Which system of equations could be used to find the number of tickets sold before the tournament, x, and the number of tickets sold at the door, y? Remember, 743 tickets were sold, and 75 more tickets were purchased before the tournament than at the door.
Select the correct system based on the scenario.
y = x + 75
y = 75x + 743
y = x + 75
y = x + 743
x + y = 743
x – y = 75
x + y = 743
y – x = 75
Which system of equations could be used to find the number of tickets sold before the tournament, x, and the number of tickets sold at the door, y? Remember, 743 tickets were sold, and 75 more tickets were purchased before the tournament than at the door.
Select the correct system based on the scenario.
y = x + 75
y = 75x + 743
y = x + 75
y = x + 743
x + y = 743
x – y = 75
x + y = 743
y – x = 75
Answer:
C. x + y = 743
x – y = 75
Step-by-step explanation:
Got it right.
Answer:
C. x + y = 743
x – y = 75
Step-by-step explanation:
I did the test so trust me :)
HELP ME PLEASE I NEED TO KNOW HOW TO SEE WHICH GRAPH HAS A GREATER B VALUE!!! Can someone also please explain how I can tell which ones has a greater b value
Answer:
hi
Step-by-step explanation:
a has the greater value
Answer:
They have the same B value, B value is the Y-intercept, where the graph starts, both B-values are equal to 1. I'm pretty sure that's correct
the sum of two numbers is 51 and the difference is 13. what are the numbers
Answer:
Step-by-step explanation:
19 and 32
Answer:
the two numbers are 19 and 32
Step-by-step explanation:
let's call the numbers x and y.
write out the equations
x + y = 51
x - y = 13
simplify the second equation
x = 13 + y
substitute into the first equation and simplify
(13 + y) + y = 51
13 + 2y = 51
2y = 51 - 13
2y = 38
y = 19
substitute y for 19 in the second equation
x = 13 + y
x = 13 + 19
x = 32
The weekly production cost C of manufacturing x watches is given by the formula C = 6000 + 3x, where the variable C is in dollars.
" (a) What is the cost of producing 1000 watches?
Answer:
therefore, to produce 1000 watches , it would cost 9000 dollars.
Price : 9 dollars a watch
Step-by-step explanation:
C=6000 + 3x
what is the cost of producing 1000 watches?
first do this
C= (1000)= 6000 + 3(1000)
C= (1000)= 6000 +3000
C= 9000
Carlos had48 brownies. He ate 3 brownies and then gave 2 brownies to each of his 16 friends. How many brownies does Carlos have left over?
Answer:
carlos will have one brownie left over.
Step-by-step explanation:
im smart
if you spin the spinner 12 times what is the best prediction possible for the number of times it lands on pink or yellow
Answer:2
Step-by-step explanation:
pls anyone help me with this question God PLSSS
Answer:
(6,4)
Step-by-step explanation:
Hope it helps you.......
Can any one solve these?
Answer:
f(x)=-8
x=4
f(x)=10
x=-6
Step-by-step explanation:
Write the statement as a rate. Lilly records 65 movies onto 5 DVDs. Choose the correct answer below. 65 movies О А. 1 DVD 5 movies о В. 5 DVDs 65 DVDs OC 5 movies 65 DVDs OD 1 movie
Which ratios are equivalent to the given ratio?
3 to 2
Select each correct answer.
23
4 : 12
1510
18 : 12
6 to 4
i just need some help with ratios
A meal has 310 calories in 5 servings. Find the calories per serving.
Answer:
62
Step-by-step explanation:
Answer:
The meal has 62 calories per serving.
Step-by-step explanation:
310/5=62
What is the value of (-5)4?
Answer:
(-5)4=
-5+4=-1
take care of yourself
have a nice day
Please help ASAP. Thanks so much
Answer:
A
Step-by-step explanation:
Easy method for this question is to plug the point (-1,7)
Plug -1 as x and hope we can get 7
[tex]y =-2(-1+1)^{2}+7\\y=7\\[/tex]
Help please if u
You don’t know it please don’t answer.
what is 4/90 reduced
Answer:
2/45
Step-by-step explanation:
divide both sides by 2
4/2=2
90/2=45
2/45
Matthew and his 3 siblings are weeding a flower bed with an area of 9 square yards. if they share the job equally, how many square yards of the flower bed will each child need to weed? use a tape diagram to show your thinking
Answer:
2.25 sq yards for each child
Step-by-step explanation:
Uhh, I can't really use a diagram.
Matthew is also one person, so instead of dividing 9 by 3, we would be dividing 9 by 4.
9/4=2.25 sq yards
(-7) + (-9) + 4 + 16
Answer: 4
Step-by-step explanation:
-7 + -9 = -16
-16 + 4 = -14
-14 + 16 = 4
Answer = 4