Answer:
he got 6 Questions right
PLEASE HELP THIS IS DUE AT 11:59!!!
1. Which is an example of the associative property?
A. x + 5 = 5 + x
B. (x + 3) + 7 = x + (3 + 7)
C. 3 • (x + 5) = 3 • x + 15
D. If x = a, and a = 7, then x = 7.
2. Which is an example of the distributive property?
9 • (t + 5) = 9t + 45
9 • (t + 5) = (t + 5) • 9
9 • (t + 5) = (9 • t) + 5
9 • (t + 5) = 9t + 5
3. Identify the property shown
transitive
associative
commutative
distributive
4. Which property justifies this statement?
2 + (8 + 9) = (2 + 8) + 9
transitive
commutative
distributive
associative
..........................................................................
5. Which property is shown?
–7 + 0 = –7
A. distributive property
B. associative property of multiplication
C. commutative property of addition
D. identity property of addition
Answer:
do you still need help?
Step-by-step explanation:
AHHHHHHHHHHHHHHHH
Use cubes with an edge length of 1/2 inch to build prisms with the lengths, widths, and heights shown in the table.
Answer:
3/2, 5/2, 7/2, 10/2, 15/2, 14/2, 23/2
Step-by-step explanation:
Don't use last answer if you don't have to.
1. = 3/2 cubes =1 1/2
2. = 5/2 = 2 1/2
3. = 7/2 = 3 1/2
4. = 10/2 = 5
5. = 15/2 = 7 1/2
6. = 14/2 = 7
7. = 23/2 = 11 1/2
A student is standing 20 feet away from the base of a tree. He looks to the top of the tree at a 50° angle
of elevation. His eyes are 5 feet above the ground. Using cos 50° 0.64, what is the height of the tree
to the nearest foot?
36 feet
29 feet
24 feet
31 feet
Answer:
[tex] \tan(50) =opp(x) \div adh(20) \\ \tan50 \times 20 = opp(h) \\ = 23.8 [/tex]
therefore the answer is 24
The height of the tree is approximately 26 feet.
What are trigonometric identities?There are three commonly used trigonometric identities.
Sin x = Perpendicular / Hypotenuse
Cosec = Hypotenuse / Perpendicular
Cos x = Base / Hypotenuse
Sec x = Hypotenuse / Base
Tan x = Perpendicular / Base
Cot x = Base / Perpendicular
We have,
Let's denote the height of the tree with 'h'.
Then we can use the trigonometric ratio for cosine as follows:
cos(50°) = adjacent/hypotenuse
cos(50°) = 20/h + 5 (the adjacent side is the distance from the student's eyes to the tree, which is 20 feet, and the hypotenuse is the height of the tree plus the height of the student's eyes, which is h + 5 feet)
Now we can solve for 'h':
0.64 = 20/(h + 5)
0.64(h + 5) = 20
0.64h + 3.2 = 20
0.64h = 16.8
h = 26.25
So the height of the tree is approximately 26 feet (rounded to the nearest foot), which means the closest answer choice is 29 feet.
Therefore,
The height of the tree is approximately 26 feet.
Learn more about trigonometric identities here:
https://brainly.com/question/14746686
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can i pls get help on wat 2x - 3 = 15?
Answer: x = 9
Step-by-step explanation:
Step 1: Add 3 to both sides.
2x − 3 + 3 = 15 + 3
2x = 18
Step 2: Divide both sides by 2.
2x/2 = 18/2
x = 9
1. The length of a rectangle is six less than three times the width. If the perimeter is 76, find the area of the
rectangle.
can you help me plz
and thank you
The area of a triangle is 18 square feet. If the base is 3 feet, what is the height of the triangle?
3 feet
9 feet
6 feet
12 feet
Step-by-step explanation:
12 feet is true.......
Answer:
12 feet
Step-by-step explanation:
I dont get this math work sheet my teacher give me so can you guys help me
Answer:
1.) y= -1/3x+3
2.) y= 3x-2
3.) -1/2x+0
Step-by-step explanation:
slope intercept
A plane leaves at 11:22 a.m. and arrives at 3:13 p.m. how long was the flight?
A. 3 hours 51 minutes
B. 3 hours 35 minutes
C. 14 hours 35 minutes ( I know its not this one lol)
D. 4 hours 35 minutes
E. 8 hours 9 minutes
Answer:
3 hours and 51 minutes
Step-by-step explanation:
Let's take this one hour at a time. Add three hours to 11:22, and you will get 2:22. There are 51 minutes between 2:22 and 3:13. So your answer will be 3 hours and 51 minutes.
40% of farm animals are cows. 72 animals are not cow. How many animals in all?
Answer:
112 maybe.
Step-by-step explanation:
Answer:
115
Step-by-step explanation:
got it right on test
Does each equation represent a proportional relationship? Choose Yes or No.
y = 7x – 3
Choose...Yes or no
y = 150x
Choose...Yes or No
Answer:
the first one yes the other on e not sure
Step-by-step explanation:
Answer: yes and no
Step-by-step explanation:
Find the LCM for 6 and 8
Answer:
24
Step-by-step explanation:
The LCM of 6 and 8 is 24 because 24 is the smallest number that is both a multiple of 6 and a multiple of 8
Answer:
2
Step-by-step explanation:
To find the least common factor....
Let's list the factors of each number
6: 1, 2, 3, 6
8: 1, 2, 4, 8
So in this case, the '2' is common and the least (after 1 ofc but 1 doesn't count)
Hope this helps :D
PLEASE HELP.Ill mark you brainliest if its right
Answer:
Step-by-step explanation:
1.) y= 1/5x - 2
2.) y = 1x + 2
3.) y = 2x + 4
4.) y = 1x + 4
5.) y = 1/3x - 4
6.) y = 1/2x - 3
Please help me! trying to get a good grade!
Answer:
Coach should put in the back up player.
Step-by-step explanation:
Regular: 97% He will loose a total of 10% of effectiveness. Which will put him at a total of 87%.
Backup: 94% He will only loose 5% of effectiveness. Which will put him at only a 89%.
45-35=10 yards over usual field goal range.
Plz help I don’t understand
Answer: I think it's "47.6 ÷ 3.9" and maybe "71.9 ÷ 6.5"
Step-by-step explanation: It's asking for you to put the boxes that have an estimated answer of 12 in the big box at the bottom. I hope this helps.
need help asap, please
will give brainly
Answer:
I don't remember how to do them but i hope this helps
Step-by-step explanation:
Moves down 5 space on the y-axis and rotates clockwise 180%
Question is below pls helppp
Answer:
Sale Tax : 6.00% or $4.20.
Step-by-step explanation:
Hope it helps!
Answer:
4,200
Step-by-step explanation:
?/70,00 = 6\100
6×70,00=420,000
420,000 divided by 100= 4,200
1. Is the graph proportional?
2. How many feet can a sloth travel in 20 minutes?
Answer:
1. Yes
2. 60
Step-by-step explanation:
The graph is proportional because it passes an origin point.
The equation of the graph is
[tex]y = 3x \: \: (x \geqslant 0) \: \: (y \geqslant 0)[/tex]
We can find the distance when travelling in 20 minutes by substituting x = 20 in the equation.
[tex]y = 3(20) \\ y = 60[/tex]
Therefore the distance (ft) is 60.
Need help ASAP:)))))))))))))
Pls show ur work!
1.2x + 7 - 5x
2.2c - 3 = 2(6 - c) + 7c
Answer:
c = -75/14 OR c = -5.357143
Step-by-step explanation:
Simplify both equations:
1.2x + 7 - 5x =
-3.8x + 7
2.2c - 3 = 2(6 - c) + 7c =
c = −5.357143
OR
c = -75/14
The question wasn't quite clear, if this wasn't correct, please elaborate on what needed to be solved, and I'll fix my answer.
Hope this helped!
help me out this is due at midnight along with like 10 other assignments
Help with math I need, do not understand I do (yoda speech) lol.
Solve for x:
− 10x + 4 = − 7x − 14 −7x −14
PLEASE HELP ME!
Step-by-step explanation:
-10x + 4 = -7x - 14 - 7x - 14
-10x + 4 = -14x - 28
4x = -32
x = -8.
During the holiday sale, the store discounted all items 1/3. What is the discount on a $19.95 item? plz help me
Answer:
Discount Final Price Each
1/3 off $ 19.95. $ 13.30
Step-by-step explanation:
I think its 13.30
Answer: $13.30
Step-by-step explanation: If you multiply 19.95 by 1/3 you will get the answer 6.65, that is the amount that is taken off. So next, you can just subtract 6.65 from 19.95.
19.95-6.65=13.30
So that is the answer, with the discount the item is now $13.30
Sarah has all of the letters for the word WATERMELON in a bag. She chooses one letter, KEEPS it, then chooses another letter. What is the probability that she will choose the letter A and then the letter W?
1/9
1/18
1/90
2/9
Answer:
2/9
Step-by-step explanation:
Tim pays $22.10 for 2.6 pounds of salmon. What is the price per pound of the salmon?
Answer: $8.50
Step-by-step explanation:
Divide $22.10 by 2.6
Can you help me with my math
ill give brainliest to who ever answers these questions first
I need help with my math rq I said Karen was closets but I am not sure
Answer:
Scott is closer
Step-by-step explanation:
8×68=524
524-480=44
560-524=46
hope it helps
Does anyone know the answer?
ASAP!
Is the domain less than 2 or greater than 2?
less than or
greater than