Answer:
0
Step-by-step explanation:
If you have 20 apples and you eat 20, and a friend gives you 20 more, and you eat those 20 again, 20-20=0+20=20-20+0
(7 + 3i) - (2 + 3i) =
A. -5
B. 5
C. 5-6 i
what is 5 divided 1/3
Answer:
15
Step-by-step explanation:
basic math.
Answer:
its 15 i believe
Step-by-step explanation:
Write 3x --1 + 5x + 7 in simplest form.
Answer:
8x+6
Step-by-step explanation:
What percentage of 80 is 67
Answer:
83.75%
Step-by-step explanation:
67/80 = 83.75%
someone please answer ASAP
Kelvin measured the distance from his door to the park. It is 1.5 miles. The distance from Kelvin’s house to the library is twice the distance from Kelvin’s door to the park. How far is it from Kelvin’s to the library?
Answer:
2.25
Step-by-step explanation:
1.5x1.5= 2.25
it is 1.5 mi from kelvins door to the park, it is 2.25 mi from kelvins house to the library.
hope this helps, let me know if you need more explaining
Answer:
3 miles
Step-by-step explanation:
1.5+1.5=3 miles
Macy estimated a product to be 800. The actual product is 768. Her estimate was an
A. overestimate
B. underestimate
Answer:
Overestimate
Step-by-step explanation:
it would be an underestimate if the number was lower than the actual number but since its larger than it is an overestimation.
hope this helps
Is the function g(x)= -2x^2 -2x+7 linear or nonlinear?
HELPP plsss
Answer:
Is non-linear
Step-by-step explanation:
It is a quadratic function
help asap
..........
You earn $15.25 an hour. Your brother earns $10.25 an hour. You pay $30 a week for lunches, and your brother pays $15 a week. If both of you work the same number of hours in a week, which inequality can be used to find x, the number of hours you will have to work so that the amount of money you have is greater than the amount your brother has after you both pay for lunch?
Answer:
15.25+15.25=20.50+15.25=35.75.
3 hours will give you $35.75
Step-by-step explanation: All you have to do is add till you have enough
Name the remainder for the quotient and describe or show how you found the remainder.
Answer:
remainder = 0
Step-by-step explanation:
Using the remainder theorem
If f(x) is divided by (x - h) then the remainder is f(h)
Here f(x) = x³ - x² - 17x - 15 and h = 5 , thus
f(5) = 5³ - 5² - 17(5) - 15 = 125 - 25 - 85 - 15 = 0 ← remainder
Since remainder is zero then (x - 5) is a factor of f(x)
Solve: sqrt(x+9) = x-3
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
[tex] \sqrt{x + 9} = x - 3[/tex]
Sides gets power 2
[tex] ({ \sqrt{x + 9} })^{2} = ( {x - 3})^{2} [/tex]
[tex] |x + 9| = {x}^{2} - 6x + 9 [/tex]
_________________________________
[tex]x + 9 = {x}^{2} - 6x + 9[/tex]
Subtract sides 9
[tex]x + 9 - 9 = {x}^{2} - 6x + 9 - 9[/tex]
[tex]x = {x}^{2} - 6x[/tex]
Subtract sides x
[tex]x - x = {x}^{2} - 6x - x[/tex]
[tex] {x}^{2} - 7x = 0[/tex]
[tex]x(x - 7) = 0[/tex]
[tex]x = 0[/tex]
OR
[tex]x - 7 = 0[/tex]
[tex] x = 7[/tex]
_________________________________
[tex]x + 9 = - ( {x}^{2} - 6x + 9)[/tex]
[tex]x + 9 = - {x}^{2} + 6x - 9[/tex]
Subtract sides 9
[tex]x + 9 - 9 = - {x}^{2} + 6x - 9 - 9 \\ [/tex]
[tex]x = - {x}^{2} + 6x - 18 [/tex]
Subtract sides x
[tex]x - x = - {x}^{2} + 6x - 18 - x [/tex]
[tex] - {x}^{2} + 5x - 18 = 0[/tex]
Multiply sides by -1
[tex] {x}^{2} - 5x + 18 = 0 [/tex]
[tex]x = No \: \: solution[/tex]
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
CHECK the roots :
[tex]x = 0[/tex]
[tex] \sqrt{0 + 9} ≠0 - 3[/tex]
[tex] \sqrt{9} ≠ - 3[/tex]
[tex]3≠ - 3[/tex]
Thus (( x = 0 )) is unacceptable.
+++++++++++++++++++++++++++++++++++++++
[tex]x = 7[/tex]
[tex] \sqrt{7 + 9} = 7 - 3[/tex]
[tex] \sqrt{16} = 4[/tex]
[tex]4 = 4[/tex]
Thus (( x = 7 )) is the only solution for x.
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
Done...
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a) Simplify
7(x - 2)2
7X = 2
Please
Answer:
49 x2 + 28 x + 4
Step-by-step explanation:
SOMEONE PLEASE HELP I need the answer AsAP
Answer:
it is d
Step-by-step explanation:
Please HLEP me
I’ll give u brainlist ♥️
Answer:
9. 1:210. x = 1011. x = 1212. A = 8789 ft²Step-by-step explanation:
see attached image
To make banana bread, Colin uses 3/4of a cup of brown sugar for every 2 cups of flour. How much brown sugar should Colin use to make a small batch with only 1 cup of flour?
Answer:
The answer is 3/8
Step-by-step explanation:
Set up a table to get one you divide 2 by 2 so then you have to divide 3/4 by 2 and that gets you 3/8
HAAAAALP PLEASE BRAINLIEST PLEASE TRY
Answer:
D.
Step-by-step explanation:
A certain video game console uses 154 watt-hours of energy each hour.
The console used 276 hours last year.
How many watt-hours of energy did the console use?
Use any method to solve this problem. You must show all your work.
Then, explain your reasoning and the steps you took to solve the problem.
Answer:
42,504 watts
Step-by-step explanation:
154x276hours=42,504watts
Answer:
42504
Step-by-step explanation:
As it uses 154 watt-hours per hour, in 276 hours, it would use 42504 as we would multiply the energy usage by the amount of hours used:
154 watt-hours = 1 hour
276 hours = 42504 watt-hours
276*154 = 42504
in a class of 30 students 60% said they walk to school
Write a proportion that you could use
to determine the number of students in
the class who walk to school.
moan and groan a lot ghjiouygbnjkh
Francisco and Stu were working on simplifying the following polynomial: 4x(2x-3)-5(3x-4). Write the equivalent expression that Francisco and Stu found for the polynomial in standard form?
Answer: 4x + 3x + 2x - 4 - 3
Step-by-step explanation: The numbers that have an X are considered major than normal numbers , when three numbers have the same X you put first the one that is major . Hope this helped.
The equivalent expression that Francisco and Stu found for the polynomial in standard form should be considered as the 4x + 3x + 2x - 4 - 3.
Calculation of the equivalent expression:Since the polynomial is 4x(2x-3)-5(3x-4)
Here the number that should have an X that should be relevant majorly as compared to the normal numbers so here the three numbers should be the similar also X we put first as major.
Therefore, The equivalent expression that Francisco and Stu found for the polynomial in standard form should be considered as the 4x + 3x + 2x - 4 - 3.
Learn more about an expression here: https://brainly.com/question/13424191
Need help on this please Help. I would really appreciate it :)
Answer:
i am not sure but according to me ans is d
Step-by-step explanation:
Ax+By=C
Ax=C-By
A=C-By/x
a six pack of soda is on sale
Answer:
that is not complete you would need the starting price and the percentage
hope that helps good luck
Answer:
what's the question?
Step-by-step explanation:
i dont know cz u didnt put the question n only a lil bit of information
ANSWER NEEDED ASAP
In the figure, line a and line b are parallel. Based on the figure, match each given angle with its congruent angles. angles congruent to ∠1 angles congruent to ∠2 angles congruent to ∠7 angles congruent to ∠6 ∠3,∠7,∠6 arrowRight ∠3,∠7,∠2 arrowRight ∠4,∠8,∠5 arrowRight ∠3,∠6,∠2 arrowRight
Answer:
angles 3, 7, and 6 are congruent to angle 2
angles 3, 7, and 2 are congruent to angle 6
angles 4, 8, and 5 are congruent to angle 1
angles 3, 6, and 2 are congruent to angle 7
Please mark Brainliest
Answer:
∠3,∠7,∠2 congrent to 6
∠3,∠7,∠6 congruent to 2
∠4,∠8,∠5 congruent to 1
∠3,∠6,∠2 congruent to 7
Step-by-step explanation:
transposing method
+ 21 = 5
how to do ?
[tex]x + 21 = 5[/tex]
[tex]x = 5 - 21[/tex]
[tex]\color{hotpink}x = ( - 16)[/tex]
Let us check whether or not we have found out the correct value of x , by placing -16 in the place of x :-
[tex] - 16 + 21 = 5[/tex]
[tex] 5=5[/tex]
[tex]\color{hotpink}LHS = RHS [/tex]
As the left hand side of the equation is equivalent to the right hand side of the equation, we can conclude that we have found out the correct value of x .
Therefore , the value of :-
[tex]\color{hotpink}x \color{olive}=\color{hotpink} ( - 16)[/tex]
wendy already spent $10 on a necklace, and each additional charm is priced at $2 each. write a function that shows the relationship between the number of charms purchased, x and the total cost, f( x)
Answer:
f(x) = 2x + 10
Step-by-step explanation:
The amount of charms represents x, or the variable. The price of the charm is represented by 2, or the slope. The necklace is the constant, represented by 10.
7m-3n-4m-7n+3
can someone tell me what is the answer please
Answer:
7m-3n-4m-7n+3 = 3m-10n+3
7-4=3
-3-7=-10
Write the Equation in standard form The line which passes through (1,-4) and (-1, 6)
Madyson goes to a restaurant with her best friend, Taylor. The two girls order a meal, Madyson's meal costs $23.75 and Taylor's meal is $15.00. They want to leave a tip of 15% how much money would it cost altogether without tax?
Answer:30.75
$23.75 +$15.00=30.75
5+3=6
21=3
i need HELP!
Model the following situation with an equation or inequality statement.
The quotient of forty-nine and a number is greater than or equal to seven.
49 ÷ x ≥ 7
hope this helps! :):)
Forty infants are being studied to test the effectiveness of diaper capacity on four types of diapers: ABC, and D The researcher calculates diaper's actual capacity compared with its listed capacity. The response variable is the amount of capacity after one hour of treatment. Previous studies have shown the may vary based on subject's activity levelHow should the subjects be blocked? Explain
Answer: They should be blocked by activity level so the subjects are as similar as possible.
Step-by-step explanation:
Blocking is used to account for suspected differences in experimental units or subjects. In this case, the study wanted to take into account the difference in activity levels, which can affect the diaper's capacity as described in the paragraph.