x2 - 2xy + y2 when x = 3 and y = 2
Answer:
1
Step-by-step explanation:
Substitute 3 for x and 2 for y:
3^2 - 2(3)(2) + 2^2
= 9 - 12 + 4
= 1
3^2−(2)(3)(2)+2^2
3^2−(2)(3)(2)+2^2
= 1
Which trigonometric identity can be used to prove the given statement?
tan0 cos0 = sin0
Answer:
Step-by-step explanation:
Free trigonometric identity calculator - verify trigonometric identities step-by-step This website uses cookies to ensure you get the best experience. By using this website, you agree to our Cookie Policy.
A rabbit moves n times as fast as a squirrel . A fox moves m times as fast as a rabbit . The fox moves how many times as fast as the squirrel?
Answer:
the fox moves mn times as fast as the squirrel
Step-by-step explanation:
the easiest way to do problems like this is by using hypothetical values that make sense (it's best to avoid 0, 1, and 2)
we'll say that n = 3 and m = 4
so if the squirrel moves at s pace, then the rabbit moves at ns, or 3s.
if the fox moves at m (4) times the rabbit's pace (3s), then it moves at 4(3s)
then just switch out the numbers for their variables, giving you m(ns)
remember that s simply represents the squirrel's pace, we cannot replace it with a number in this case, so switch it with the idea/value it represents
and there you go, mn times the squirrel's pace
Olivia uses the work below to determine 55% of 720.
Step 1: 55 percent = 50 percent + 10 percent minus one-half (10 percent)
Step 2: 50% of 720 = 720 divided by 2 = 360
10% of 720 = 720 divided by 10 = 72
One-half (10 percent of 720) = One-half (72) = 31
Step 3: 360 + 72 – 31 = 401
Which explains the error in Olivia’s solution?
Step 1: Olivia used percents that are not equivalent to 55%.
Step 2: Olivia incorrectly determined 50% of 720.
Step 2: Olivia incorrectly determined One-half of 10% of 720.
Step 3: Olivia subtracted One-half of 10% when she should have added.
Answer:
C. Step 2: Olivia incorrectly determined One-half of 10% of 720.
Step-by-step explanation:
On the unit test on edge, hope this helps UwU
mark walked 21,129 feet in one hour. at that speed, how many miles will he walk in 2 hours
Answer: 23.129
Step-by-step explanation:
Look at triangle STU:
A right triangle STU is shown with the right angle at T. The length of side ST is labeled as 12 cm and the length of side TU is labeled as 16 cm.
What is the length (in centimeters) of side SU of the triangle? (1 point)
Question 9 options:
1) 20
2) 22
3) 24
Help
4) 28
Answer:
1) 20
Step-by-step explanation:
I drew a diagram of the triangle described below.
Note that we can use the Pythagorean Theorem, which states a^2 + b^2 = c^2 where a and b are the legs of the triangle and c is the hypotenuse.
We can apply this here. Since ST and TU are the legs and SU is the hypotenuse we can solve for SU:
SU = square root (12^2 + 16^2) = square root (400) = 20
I hope this helps! :)
What is the product of all constants $k$ such that the quadratic $x^2 + kx +15$ can be factored in the form $(x+a)(x+b)$, where $a$ and $b$ are integers?
Thats insane tho!
Whats ur aops class that you take?
Look at the subtraction expression below. ( Please. Help. Quick.)
- 1/2 - 1/4
Which number line models this expression?
Answer:
A.
Step-by-step explanation:
Because they are both subtracting, both lines have to go to the left
Answer:
The answer is A
Step-by-step explanation:
I got a 100 on my test ;)
What are the angle measurements in the triangle?
Answer:
c
Step-by-step explanation:
What is 5 + 5 + 5 + 5 + 5 (5 x 4) Easy question so you can get points! Explain and get brainliest!
A) 45
B) 120
C) 100
D) 25
Answer:
A) 45
Step-by-step explanation:
BECAUSE 5 + 5 + 5 + 5 + 5 = 25
and 5 x 4 = 20
So, 25 + 20
= 45
Brian agrees to watch his neighbor’s dogs for 7 days. His neighbor provides a 128-ounce bag of dog food. Buster eats 20.5 ounces in 2 days and Roxy eats 22.5 ounces in 3 days. Does Brian have enough food to feed the dogs all 7 days? Explain.
Answer:
Yes, he has exactly the right amount
Step-by-step explanation:
Buster- 20. 5 = 2 days 20.5+20.5+20.5+10.25= 71.75 for 7 days
Roxy- 22.5= 3 days 22.5+22.5+11.25=56.25 for 7 days
71.75+56.25= 128oz
Brian will have exactly enough food for 7 days
THIS IS WRONG CAN SOMEONE CORRECT THIS PLEASE THANK YOU
A football team wants to buy a football. The football costs $52. There are 13 members of the team. How much will each of the team members contribute to be able to purchase the football if they had $28 already.
Solution: Let the amount each team member contributes be x, then
13x + 28 ≥ 52
13x ≥ 52 - 28
13x ≥ 22
x ≥ 22/13
x ≥ 2
Answer:
heyyyyyyyyyyyyyyy
Step-by-step explanation:
Answer:
sheeshhhhhhhhhhhhh
;)
Step-by-step explanation:
daddy chill
In geometry, components used in deductive reasoning include all the following except:
A.) Postulates
B.) Theorems
C.) Observations
D.) Definitions
Answer:
the answer is observations
Step-by-step explanation:
Which value of n makes the equation true?
6n - 2[4n + 7) + 4 = -2
Answer:
-4
Step-by-step explanation:
6n -8n -14 +4 = -2
-2n = 8
n = -4
At a butchers hosp, Hilda bought beef and pork. She left with 18 and 8/25 pounds of meat. Express the number of pounds of pork she bought using a decimal.
I'm not sure if I mis-read or something.. How am I supposed to find the pounds of pork if there isn't any info about how much beef she bought. Am I doing something wrong? If so, what is the answer?
Answer:
18.32
Step-by-step explanation:
convert the fraction 8/25 to the decimal .32 and add 18
PLEASE HELP ME ASAPP !! I HAVE 10 MINUTES LEFT !! When Erin first planted the cherry tree in her yard, it was 40 feet tall. Now it is 35% taller. How tall is the tree now?
Answer: 54 feet tall
Step-by-step explanation:
Answer:
it would be 54 feet tall now
Step-by-step explanation
35% of 40 is 14
40+14=54
54 feet
2 power of 3 x (8 + 4 - 10)
(PEMDAS)
Answer:
16
Step-by-step explanation:
First do the operations in the parentheses.
8+4-10 = 2
Then do 2^3.
2^3 = 2*2*2 = 8
Then do 8*2
16
When you solve y = x/4 - 6 for x, which equation is the result?
Final Answer: [tex]x = 4(y + 6)[/tex]
Steps/Reasons/Explanation:
Question: When you solve [tex]y = \frac{x}{4} - 6[/tex] for x, which equation is the result?
Step 1: Add [tex]6[/tex] to both sides.
[tex]y + 6 = \frac{x}{4}[/tex]
Step 2: Multiply both sides by [tex]4[/tex].
[tex](y + 6)[/tex] × [tex]4 = x[/tex]
Step 3: Regroup terms.
[tex]4(y + 6) = x[/tex]
Step 4: Switch sides.
[tex]x = 4(y + 6)[/tex]
~I hope I helped you :)~
what should I do understand math better?
Answer:
U can join maths tution classes...✨✨As someone who used to fail math and now has straight Cs (not the best but nti is really hard). It really helped me to talk to others about issues I had and ask questions it may not seem like a lot but it really helped me.
What is the value of x?
Answer:
one is the value of x this is correct answer
In this soccer season Emma has scored one more than twice the number of Nikki's goals if Emma has scored 15 goals which equation can be used to find X number of goals
Answer:
[tex]X = 22[/tex]
Step-by-step explanation:
Given
Represent Emma with E and Nikki with N
From the question, we have that:
[tex]E = 1 + 2N[/tex]
and
[tex]E = 15[/tex]
Required
Determine the X number of goals
Substitute 15 for E in [tex]E = 1 + 2N[/tex]
[tex]15 = 1 + 2N[/tex]
Subtract 1 from both sides
[tex]15 -1 = 1 - 1 + 2N[/tex]
[tex]14 = 2N[/tex]
Divide both sides by 2
[tex]\frac{14}{2} = \frac{2N}{2}[/tex]
[tex]\frac{14}{2} = N[/tex]
[tex]7 = N[/tex]
[tex]N=7[/tex]
This implies that Nikki scored 7 goals in total
The X number of goals is then calculated as:
[tex]X = N + E[/tex]
[tex]X = 7 + 15[/tex]
[tex]X = 22[/tex]
first to answer gets brainliest im being nice so what is 2+2 XD
Answer:
4
Step-by-step explanation:
what else o3o
Answer:
2+2=4
Step-by-step explanation:
tysm!!
4/5 divided by 2/3 PLEASE HELP
Answer:
6/5
Step-by-step explanation:
4/5 x 3/2 = 12/10 = 6/5
"Nine less than four times a number is greater than seventeen." Which inequality is a correct translation of this statement?
Hi, you didn’t post answer choices but this should be it:
4x - 9 > 17
A man bikes at a rate that is 6 miles/hour faster than the rate at which he jogs. After 30 minutes jogging and 90 minutes biking, the man has covered 21 miles. Over what distance was the man jogging?
Answer:
30
Step-by-step explanation:
i hope this helped and i am pretty sure this is correct!
The Smith family took out a $160,000 loan. After 30 years they had paid a total of 364000. What is the interest rate on the loan? Can someone pls answer this in an hour using the equation Interest= principal x rate x time.
Answer:
The interest rate is 0.0425%
Step-by-step explanation:
Mathematically;
I = PRT/100
From the question, I in this context is the difference between how much they have paid and the amount borrowed
Mathematically, this is ; 364,000-160,000 = 204,000
This is the interest
R is the rate = ?
T = 30 years
P is the amount borrowed = 160,000
thus, we have
204,000 = (160,000 * R * 30)/100
2040 = 4800000R
R = 2040/4800000
R = 0.000425 which is 0.0425%
help plz bc idk what to do
Answer:
A.) k=0.5
Step-by-step explanation:
If we use the formula given: y=kx, we can plug in values.
0.5=k(1)
0.5=(0.5)(1)
0.5=0.5
We know that to get from 1 to 0.5, we need to divide by two, or multiple by 1/2. 1/2 in decimal form is 0.5
Help
award: Brainliest
Answer:3.51
Step-by-step explanation:
Equation Given: [tex]h(t)=-4.9t^{2}+358[/tex]
Question: When is the penny at a height of 300 meters above the ground?
Answer:
At 3.44 seconds, the penny is at a height of 300 meters above the ground.
Step-by-step explanation:
Basically, we have to solve an equation here:
[tex]-4.9t^{2} + 358 = 300[/tex]
Hence,
[tex]-4.9t^{2} = 300 - 358[/tex]
[tex]t^{2} = \frac{-58}{-4.9}[/tex]
[tex]t = 3.44[/tex]
Hence, at 3.44 seconds, the penny is at a height of 300 meters above the ground.
Hope this helped!
The length and width of the rectangle is 60 and 40. If the scale factor is ¼, what are the new measurements?
Answer:
15 and 10
Step-by-step explanation:
I hope this helps :)