Answer:
-6
Step-by-step explanation:
-2x - 3 = 9
+ 3 +3
-2x = 12
/ -2 / -2
x = -6
Can someone please tell me the answers for this question
(I'll dm you the screenshots on Twitter)
On a test of 25 items, 18 were answered correctly. What percent were answered correctly?
Answer:
72%
Step-by-step explanation:
18*4=72%
this is important please help I will give brainiest
Which number is a perfect square? 15 or 4
Answer:
4
Step-by-step explanation:
even numbers that is a multiple of 4 is a perfect square
Answer: 4 is perfect square.
Step-by-step explanation:
If you spend 3$ on 6 apples,what is the unit rate (in dollars) per apple?
Answer
2 apples per $1
Step-by-step explanation:
because 6 apples cost $3, so take 6 divided by 3 so you get 2 apples per dollar
14 POINTS PLEASE HELP !!
The model represents a polynomial of the form ax^2 + box + c
which equation is represented in the model?
- 3x^2 - 4x - 1 = (3x + 1) (x -1)
- 3x^2 - 2x - 1 = (3x - 1 ) ( x - 1 )
- 3x^2 - 4x + 1 = (3x - 1 ) (x - 1 )
- 3x^2 - 2x + 1 = (3x - 1 ) (x - 1 )
Answer: C
Step-by-step explanation:
i just know
4) 16 + 7 + 9 = 7 + 9 + 16 *
A. Commutative Property of Addition
O B. Additive Identity Property
C. Multiplicative Identity Property
O D. Associative Property of Addition
Help me pls
Answer:
a.) Commutative Property of addition
Step-by-step explanation:
Please help brainiest will give you!
Find the slope of it!
A. -3
B. -1/3
C. 1/3
D. 3
Thanks!!!!!!
Answer:
the answer is D
Step-by-step explanation:
......................
Answer:
-1/3
Step-by-step explanation:
What is the answer to this
show your work
Answer:
Aaron was the sitter for 4 hours
Step-by-step explanation:
from the sentence my equation is 12x + 10 = 58
x represents the amount of hours
now solve
12x + 10 = 58
12x = 48
x = 4
Answer:
Aaron worked for 4 hours
Step-by-step explanation:
f(x)=12x+10
f(?)=58
58=12x+10
48=12x
4=x
Max made $104 for 8 hours of work. at the same rate, how much would he make for 18 hours of work?
Answer:
$234
Step-by-step explanation:
84192÷67÷2?por favor no tengo ni idea
Answer:
628.298507463
Step-by-step explanation:
Answer:
628.298507463
brainliest? XD
Which lines are parallel? Check all that apply.
Lines b, c, d, e, f are cut by transversal a. Clockwise from top left, the angles formed by lines b and a are blank, 89.5 degrees, blank, blank; by lines c and a are blank, blank, blank, 91.5 degrees; by lines d and a are blank, blank, 89.5 degrees, blank; by lines e and a are 88.5 degrees, blank, blank, blank; by lines f and a are blank, blank, 90.5 degrees, blank.
b is parallel to f
b is parallel to d
c is parallel to e
c is parallel to d
d is parallel to f
e is parallel to f
Answer:
I think it's A and C
b║f
c║e
(I'm so sorry if it's wrong)
Hope this Helps!
Answer:
A and c are correct because i just took the test
Step-by-step explanation:
i need to know the solution of 4(x+3)-4=81/2x+1
Answer:
[tex]x= \frac{-7+\sqrt{697}}{8}[/tex]
[tex]x= -\frac{7+\sqrt{697}}{8}[/tex]
Step-by-step explanation:
4(x+3)-4 = 81/2x +1
Add 4 to both sides
4(x+3) = 81/2x +5
Multiply both sides by 2x (This removes the division from the second half)
8x(x+3) = 81 +10x
Simplify
[tex]8x^{2}[/tex]+24x = 81 +10x
Subtract 10x from both sides
[tex]8x^{2}[/tex] +14x = 81
Subract 81 from both sides
[tex]8x^{2}[/tex] +14x -81 = 0
Solve using the quadratic formula
[tex]x= \frac{-b (+-) \sqrt{b^{2} -4ac}}{2a}[/tex]
a= 8, b= 14, c= -81
[tex]x = \frac{-14 (+-) \sqrt{14^{2} -4 *8(-81)} }{2*8}[/tex]
Simplify
[tex]\sqrt{14^{2} -4 *8(-81)} = 2\sqrt{967}[/tex]
[tex]\frac{-14 (+-) 2\sqrt{967}}{2*8}[/tex]
Simplified Solution
[tex]x= \frac{-7+\sqrt{697}}{8}[/tex]
And
[tex]x=- \frac{7+\sqrt{697}}{8}[/tex]
I know this is confusing but I hope it helps. Keep in mind that (+-) means plus or minus. You might also look up what the quadratic formula is if you are not already familiar with it.
I need help on this question
Answer:
7:8
Step-by-step explanation:
Solve: 0.3 + d = 7.1 d = _____
Answer:
d= 3/61
Step-by-step explanation:
can sum one solve this plz
5(7+8)+(89-9)
Answer:
155
Step-by-step explanation:
• 5(15) + 80
• 75 + 80
• 155
Rob is saving money for a down payment on a house. He opens a savings account at his local bank and deposits $1000. He models his savings plan with the equation y=400x+1000
based on his current income and monthly savings rate. What is the meaning of the y-intercept in the equation?
Answer:
x=-5/2
Step-by-step explanation
y=0
0=400x=1000 divide both sides
x=-5/2
Answer:
The Answer is D: Starting amount in his savings account
Step-by-step explanation:
The y-intercept represents the starting amount in his savings account.
x = 0 for the y-intercept.
y = 400x + 1000
y = 400(0) + 1000
y = 1000
50 points the question is in the picture.
Answer:
Every minute the coffee cooled down 2 degrees F every minute
Step-by-step explanation:
so i took 2 to see how many times it went into 22 then i took 54 and went 2 degrees for each minute.
Answer:
-2.4°FStep-by-step explanation:
Temperature change is:
- 54°F over 22 1/2 minutesRate of change in a minute:
-54 / 22 1/2 = -54 / 45/2 =-108/45 =-2 18/45 =-2 2/5 =-2.4°FHey I need some help :)
Would the phrase
“Net Change” mean I would subtract the given numbers? I’m on a post test and I’m a little confused. Please answer if you know.
Answer:
Net change means the differnce between the before result and the after result. You would subtract the numbers, but if you have a gain(the before result smaller than after result) you would do its absolute value. If it's a loss(the before result bigger than after result) you would put a negative behind its absolute value.
e.g. if 2019 had $1 net worth and 2020 had $2 net worth, since 2>1 it would be |2-1| = 1. If 2019 had $2 net worth and 2020 had $1 net worth, since 1<2 there would be a - |2-1| = -1 net change.
However, if there is no change it would be just 0.
Alice likes to go to Main Event to play laser tag and climb the rock wall each Saturday. Instead of purchasing the play pass, Alice pays for each activity separately.
a. This week Alice played laser tag twice and climbed the rock wall 3 times, spending $31.
b. Last week Alice played laser tag 4 times and climbed the rock wall once, spending $27.
Using the information provided, how much does Main Event charge, in dollars, to climb the rock wall?
1. $7
2. $5
3. $8
Answer:
1. $7 for climbing the rock
Step-by-step explanation:
x is the number of laser tags
y is the number of times climbed the rock
a. 2x + 3y = 31
b. 4x + y =27
lets find y
Step 1
4x + y = 27
y = 27 -4x
step 2
replace y with 27 - 4x in the a.
2x + 3( 27 - 4x) = 31
2x + 81 - 12x = 31
2x -12x = 31 -81
x = 5
y = 27 - 4(5)
y = 7
Find m2H.
E
81°
A. 81°
B. 162°
C. 89°
D. 99°
please helppp
(literally posting my entire math lesson)
Answer:
B
Step-by-step explanation:
Point B is located 6.5 tenths left of -8.
Answer:
Point B
Step-by-step explanation:
If you count 5 steps backward from -8, you land in the direct middle of -9 and -8. You can also count 5 steps forward from -9, but it doesn't change that the number represented is -8.5. Now focus on the distance from -8.5 to -9 (because between that distance are the points that we might be using). You repeat the same process used above, so if you half the distance between -8.5 and -9 then you'll get -8.75. As we can see, Point A is the closest to -8.75 compared to Point B. It wouldn't make sense to choose Point B because as we mentioned before, Point A is now most certainly not -8.65. Point B represents that number the best.
≧◡≦
Mocha here! If this answer helped you, please consider giving it brainliest because I would appreciate it greatly. Have a wonderful day!
Explain how to graph 5 2 on the number line. A number line going from 0 to 3. There are 2 equals spaces between each number. The number line contains 0, point A is one-half, 1, point B is 1 and one-half, point C is between point B and 2, 2, point D is 2 and one-half, 3.
Answer:
point D
Step-by-step explanation:
To graph 5/2 on the number line is to find its mixed number.5/2 is a improper fraction and and is equal to 2 and 1/2.So 5/2 is on point D.Because there are 2 whole groups in 5 and 1/2 that makes the mixed number.
Good luck on your test or problem
Answer:
To graph 5/2 on the number line is to find its mixed number.5/2 is a improper fraction and and is equal to 2 and 1/2.So 5/2 is on point D.Because there are 2 whole groups in 5 and 1/2 that makes the mixed number.
Step-by-step explanation
the person above me was right
Does anyone know how to do this?? I don’t understand. I need help please ASAP! Tysm
17. 30
19. 58
21. 55
23. 23
lim x tends to π÷2 , then what is the value of (tanx + cotx) ÷ ( tanx - cotx)
(tan(x) + cot(x)) / (tan(x) - cot(x)) = (tan²(x) + 1) / (tan²(x) - 1)
… = (sin²(x) + cos²(x)) / (sin²(x) - cos²(x))
… = -1/cos(2x)
Then as x approaches π/2, the limit is -1/cos(2•π/2) = -sec(π) = 1.
Estimate the quotient: 1628 ÷ 8
Answer:
203.5
Step-by-step explanation:
Please mark brainliest.
Answer:
Answer is: 203.5
Step-by-step explanation:
Hope this helped YOU! :)
1. What is the probability of flipping heads on a coin and rolling either a 2 or a 3 on a 6-sided
number cube?
HELP PLS HURRY!!
Answer:
1/2 1/6 1/6
Step-by-step explanation:
What are sets and how can they be represented ?
help please if you know the answer
Answer:D
Step-by-step explanation:
Enter the coordinates of the vertices of (r(270°,O) ∘ T⟨1, −2⟩)(QRST).
Answer:
where bro i will let you know in the comments section