Answer:
right triangle
Step-by-step explanation:
Answer:
A right triangle
Step-by-step explanation:
A 30-60-90 triangle is a special right triangle (a right triangle being any triangle that contains a 90 degree angle) that always has degree angles of 30 degrees, 60 degrees, and 90 degrees.
(help please!) Which is a correct representation of x-2 using algebra tiles?
Answer:
its c
Step-by-step explanation:
The answer is C
Hope this helps
I neeed help for 4,5, and 6
I have 15 more points left
plssss
Anthony has been saving nickels (N), dimes (D), and quarters (Q) over the last year. He knows that he has twice as many nickels as quarters. When he takes the coins to the change machine to exchange them for paper money, he learns that he has 260 coins that total $29.75. Determine the number of each type of coin Anthony saved.
Answer:
75 number of quarters
150 number of nickels
35 number of dimes
Step-by-step explanation:
Let x, y and z be the amount of quarters, nickel and dimes respectively.
he learns that he has 260 coins, thus;
x + y + z = 260 - - - (1)
Now, we are told that he has twice as many nickels as quarters.
Thus, number of nickels = 2x
y = 2x - - - (2)
From online research, we have the following cost;
1 quarter = $0.25
1 nickel = $0.05
1 dime = $0.1
Total cost is $29.75. Therefore;
0.25x + 0.05y + 0.1z = 29.75 - - - (3)
Put 2x for y in eq (1) and eq (3) to get;
x + 2x + z = 260
3x + z = 260 - - - (eq 4)
0.25x + 0.05(2x) + 0.1z = 29.75
0.25x + 0.10x + 0.1z = 29.75
0.35x + 0.1z = 29.75 - - - (eq 5)
From eq(4), z = 260 - 3x
Thus;
0.35x + 0.1(260 - 3x) = 29.75
0.35x + 26 - 0.3x = 29.75
0.05x = 29.75 - 26
0.05x = 3.75
x = 3.75/0.05
x = 75
So, z = 260 - 3(75)
z = 260 - 225
z = 35
Since y = 2x,
Then,y = 2(75) = 150
Thus,we have;
75 number of quarters
150 number of nickels
35 number of dimes
Which graph correctly represents the information from the table?
Time (s) Speed (m/s)
0 0
2 4
3 6
4 8
6 12
Answer:
A.
Step-by-step explanation:
A and C are the only graphs it could be because they are the only graphs starting with (0, 0)
Graph C does not have (2, 4) on it but Graph A does meaning that the only possible answer is Graph A
Answer:
Yes, ( A )would be the correct answer
Step-by-step explanation:
Took the test.
Please help me
What is y=
You nearly have the right equation, but you should use t instead of x. Other than that, everything looks perfect.
Answer all of the following questions above. I will give brainliest to the correct answer!
Answer:
40
112
2n^2 + 2n C
Step-by-step explanation:
a)The correct formula is 2n^2 + 2n
So for n =4, the answer is
2*4^2 + 2*4
2*16 + 8
32 + 8
40
b) For the seventh answer you get
2 * 7^2 + 2*7
2*49 + 14
98 + 14
112
c) The correct formula to use is
2n^2 + 2n See diagrams for the number of matchsticks to be used.
n 2n^2 + 2n
1 2*1^2 + 2*1
1 2 + 2
1 4
2 2*2^2 + 2*2
2 2* 4 + 4
2 8 + 4
2 12
3 2*3^2 + 2*3
3 18 + 6
3 24
What an extremely interesting sequence. I'll bet not one person in 100 could get this without the match stick diagrams. I'm sorry I didn't read the question more carefully.
A sample was taken of the metabolic rates of men participating in a study regarding diets. If each score is multiplied by 25 points , then the standard deviation of the new scores would:_______
Answer:
multiply by 25 also.
Step-by-step explanation:
If the scores are multiplied by 25, that means that the mean will also multiply by 25. Since the mean and the scores all increased by 25 times, the standard deviation will increase by 25 times.
If instead, you added 25 (or any other number) to each score, then the standard deviation would not change. The mean and each score will increase by 25, bu the difference between them will not change.
A car sold 120 cars in April the dealership wants to increase the number of cars sold by 15% in may how many cars will the dealership need to sell to reach there goal
Answer:
18
Step-by-step explanation:
15 x 20%=18
Answer:
138
Step-by-step explanation:
because when you add 18 to 120 it is 138
pls help :( plssss plsss pls
Answer:
you can alwayd use desmos for graphing
Keith borrowed $102 from his dad, and he is paying him back $11 each month
Answer:
9.2
Step-by-step explanation:
102/11
i would take him 9.2 months to pay back
Ideally, he will repay the whole amount of $102 in 10 months where he will pay $11 for first 9 months and $3 in the 10th month.
Given information:
Keith borrowed $102 from his dad, and he is paying him back $11 each month.
So, Keith will pay back his dad an amount of $11 every month till the debt is cleared.
Now, the number of months required by Keith to repay will be calculated as,
[tex]\dfrac{102}{11}=9+\dfrac{3}{11}[/tex]
Now, Keith will need [tex]9+\dfrac{3}{11}[/tex] months to completely repay his debt.
Fraction of month is not an option for repayment. So, he will pay $11 regularly for 9 months which will be $99 in the repayment, and the remaining $3 will be paid by him in the 10th month.
Therefore, ideally, he will repay the whole amount of $102 in 10 months where he will pay $11 for first 9 months and $3 in the 10th month.
For more details, refer to the link:
https://brainly.com/question/14937758
I Think the answer Is C
Answer:
mee two
Step-by-step explanation:
need help with question 2 and 3
Answer:
2. 122
3. 90 degrees
Step-by-step explanation:
Hurry I don’t know the answer
Answer:
I cant tell wich graph as all the options arnt present but I hope the picture will help you tell wich graph
For each boat he sells, Mick earns $149 in addition to 2% of the purchase price of the boat
as commission. How much will Mick earn for a boat that was purchased at $65,000?
Answer:
c = 149 + 0.02p
Step-by-step explanation:
Let f(x)=3x+1 and g(x)=2x2−1
Find f(g(2))
10
22
97
28
Answer:
f(g(2)) = 22
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDASAlgebra I
Composition of functionsStep-by-step explanation:
Step 1: Define
f(x) = 3x + 1
g(x) = 2x² - 1
Step 2: Find g(2)
Substitute: g(2) = 2(2)² - 1Evaluate: g(2) = 2(4) - 1Multiply: g(2) = 8 - 1Subtract: g(2) = 7Step 3: Find f(g(2))
Define: g(2) = 7Rewrite: f(7)Substitute: f(7) = 3(7) + 1Multiply: f(7) = 21 + 1Add: f(7) = 22And we have our final answer!
1 peso = $ .075. How many pesos (whole number) do you get for $100 ?
Answer:
133
Step-by-step explanation:
100/.75 = 133.33 = 133
What is the value for ƒ(x) = 9 3 15 6
Answer:
8 9 16 7 hope this helps
Step-by-step explanation:
I'm not to good with math lol
Answer:
9
Step-by-step explanation:
I believe this is missing part of the equation. But if you are looking for the value of f(x)=3^2x+1 when x=1/2, this is the answer you are looking for.
You will have to substitute the given value into the function and evaluate.
Brainliest to right answer...plz don’t answer just for points I can’t fail this...
Answer:
Infinitely many solutions
True for all y values
Step-by-step explanation:
A library contains only paperback and hardback books. If the ratio of paperback books to the total number of books is 3 to 5, which statement must be true? The ratio of paperback books to hardback books is 2 to 3. The ratio of paperback books to hardback books is 2 to 3. The ratio of paperback books to hardback books is 3 to 2. The ratio of paperback books to hardback books is 3 to 2. There are exactly 2 paperback books in the library. There are exactly 2 paperback books in the library. There are exactly 8 hardback books in the library. There are exactly 8 hardback books in the library.
Answer:
A library contains only paperback and hardback books. If the ratio of paperback books to the total number of books is 3 to 5, the true statement is:
The ratio of paperback books to hardback books is 3 to 2.
Step-by-step explanation:
The number of books in the library = 5
The number of paperback books in the library = 3
Therefore, the number of hardback books in the library = 2 (5 - 3)
Then, the relationship between the paperback books and the hardback books in the library can be expressed as a ratio of 3:2. This still gives the sum of the ratios as 5, which is the total number of books in the library, including paperback and hardback books.
Mickey needs $80 to buy a fish tank for her fish. So far he shas been able to save $8. She is going to be cleaning up this weekend at the park where he makes $9 per hour. Which inequality shows the minimum number of hours h , that Mickey can work at the park to earn enough to buy the fish tank for her fish? (5 points) a 8 + 9n ≤ 80, so n ≤ 8 b 8 + 9n ≥ 80, so n ≥ 8 c 9n ≥ 80 + 8, so n ≥ 9.8 d 9n ≤ 80 + 8, so n ≤ 9.8
Answer:
.
Step-by-step explanation:
Some triangles are not parallelograms
Answer:
true
Step-by-step explanation:
parallelogram a have four sides
Answer:
It is true
Step-by-step explanation
it has no 4 sides i looked it up
You plant a tree that is 36 36 inches tall. After one year, the tree is 43 43 inches tall. Which expression describes the percent of increase in the tree's height
Answer: 36 - 100%
43 - x %
Step-by-step explanation 36 - 100%
43 - x %
we multiply by cross -> 36 * x = 100 / 43
we should remove '100%' from new value, because we find only increase.. no new value in percent.
x + 100 = (43 * 100)/36
x = 4300/36 - 100
x = 119+ 16/36 -100
x = 19 +4/9
what's the answer -5+ 8x - 9 = 3x+3)
CORRECT ANSWER GETS BRAINLIEST. Complete the square and find the answer! I genuinely need help so please only answer if you know.
Answer:
+49=(x+ 7)^2
hope that helped if yes give me brainliest and if no draw my attention by hitting the comment section
Answer:
x^2 + 14x + 49 = (x + 7)^2
Step-by-step explanation:
Emeril solved this equation using the steps shown below: 4b + 2b – 3 = –21 1. Combine like terms: 6b − 3 = −21 2. Subtraction property of equality: 6b = −24 3. Subtraction property of equality: b = −4 Analyze the steps Emeril used to solve for the variable to determine if he made an error. In which step did Emeril make an error?
Answer:
Step 2: He should have added 3 to, rather than subtracting 3 from, both sides
Step-by-step explanation:
Finished assignment
Answer:
step 2
Step-by-step explanation:
35
- 34
3+10 121
105
los
a bag contain blue black balls and 5 Yellow baz two
balls are taton at random me ather the other without
replacement fond
both boro Probability That
a They ar both black
Yellow
. The forse is yellow and the second is black
a one is yecrow and the others black
they are of the same colour
5
Answer:
? ??
Step-by-step explanation:
You need to try and structure that question? or whatever that is better
0.14+0.14+0.14_________0.14×3
equal to
greater than
less than
Answer:
it is equal to
Step-by-step explanation:
0.14 + 0.14 + 0.14 = 0.42
0.14 × 3 = 0.42
Each answer choice below shows an equation and a value for x. Which of the following are true? Select three that apply.
A. If 3(x+6)=15, then x = 3.
B. If 4(x-7) = 36, then x=37.
C. If 5x + 10 =20 then x =2
D. If 6x-12=48, then x=10
E. If 7x-14=-28, then x=8
F. If 8x(x-4)=32, then x=8
Replace x in each equation and see which ones are true.
The answers are:
C. If 5x + 10 =20 then x =2
D. If 6x-12=48, then x=10
F. If 8x(x-4)=32, then x=8
2/3 of the sum of three times a number and six is 10. what is the number?
9514 1404 393
Answer:
3
Step-by-step explanation:
Let x represent the number. The problem statement tells you ...
2/3(3x +6) = 10
2x +4 = 10 . . . . . . use the distributive property
x +2 = 5 . . . . . . . . divide by 2
x = 3 . . . . . . . . . . .subtract 3
The number is 3.
__
Comment on the solution
The above shows an "alternative" solution method. The more usual way this might be done is ...
2(3x +6) = 30 . . . . . multiply by 3 to clear fractions
6x +12 = 30 . . . . . . . eliminate parentheses
6x = 18 . . . . . . . . . . . subtract 12
x = 3 . . . . . . . . . . . . divide by 6
Answer:
x=3
Step-by-step explanation:
Write the equation first, 2/3(3x+6)=10
Distribute 2, 2(3x+6)/2
Which equals 6x+12/3=10
Then multiply 3 from both sides 6x+12=30
Subtract 12
6x=18
Divide 6 from both sides
x=3
x+3+5x=
x plus three plus five x equal
Answer:
6x+3
Step-by-step explanation:
If you're just combining like terms this is the correct answer