Answers
9514 1404 393
Answer:
a = 1b = -1Step-by-step explanation:
Evaluate the expression given.
a = √2 · cos(-π/4) = 1
b = √2 · sin(-π/4) = -1
In summary, a=1, b=-1.
Related Questions
Taking into account identical letters, how many ways can the researcher arrange the word CALLITRICHIDAE that start or end with vowels?
Answers
Answer:
241,920 different ways
Step-by-step explanation:
We have 6 vowels, but A repeats twice and I repeats three times, so the number of ways in which each can either start or end the word:
³P₂ = 3! / (3 - 2)! = 6 / 1 = 6 ways
You can start words with A, E or I, or end the words with A, E, or I.
the remaining 8 consonants can be arranged in 8! ways = 40,320 ways
total number of ways that the letters can be arranged = 6 x 40,320 = 241,920 different ways
The total number of ways the researcher arrange the word CALLITRICHIDAE that start or end with vowels is 6 ways and this can be determined by using the given data.
Given :
Word -- CALLITRICHIDAE
The following steps can be used in order to determine the total number of ways the researcher arrange the word CALLITRICHIDAE:
Step 1 - First, calculate the total number of vowels in the given word CALLITRICHIDAE.
Total vowels = 6
Step 2 - Now, determine the total number of times a letter repeat in the word CALLITRICHIDAE.
So, the letter A appears 2 times and letter I appears 3 times in the word CALLITRICHIDAE.
Step 3 - Now, evaluate the total number of ways the word CALLITRICHIDAE is arranged:
[tex]\rm Total \;Number\; of\; Ways=\; ^3P_2 = \dfrac{3!}{(3-2)!}=6[/tex]
For more information, refer to the link given below:
https://brainly.com/question/1216161
what is the sum of ? × ? ÷ ? = 154
Answers
Answer:
?=154
Step-by-step explanation:
? × ? ÷ ? = 154
? × ? = 154 × ?
? = 154 × ? ÷ ?
? = 154
a rectangle has a height to width ratio of 3 :4.5 give two examples of dimensions for rectangles that could be scaled versions of this rectangle
Answers
Answer:
The required dimensions that can be scaled versions of given rectangle are:
Height = 12, Width=18
Height = 30, Width=45
Step-by-step explanation:
Given that height to width ratio is:
3: 4.5
Any ratio equivalent to this or which simplifies to this ratio will be the scaled version of the given rectangle.
Remembering that both sides of the ratio can be multiplied with a number.
So,
The scaled versions can be:
[tex]4(3):4(4.5)\\12:18\\AND\\10(3): 10(4.5)\\30:45[/tex]
The required dimensions that can be scaled versions of given rectangle are:
Height = 12, Width=18
Height = 30, Width=45
a pile of 40 coins consists of nickels and dimes. the total value of coins is $2.7 find the number of each type of coin?
Answers
Explanation:
Dime = 0.10$
Nickel = 0.05$
Assume that all the coins were dimes
40 x 0.10$ = 4$
4$ - 2.7$ = 1.3$
1.3$/0.05$ = 26
Thus, 26 coins are nickels.
40 - 26 = 14
And 14 coins are dime.
Let’s check:
14(0.10) + 26(0.05) = 2.7$
1.4$ + 1.3$ = 2.7$
2.7$ = 2.7$
2+2=?
can u help me
Answers
Answer:
4
Step-by-step explanation:
Answer:
4
Step-by-step explanation:
all help is appreciated !
Answers
!!!!!!!!!!ANSWER!!!!!!!!!!!!!!
Which correlation is most likely a causation?
A. the positive correlation between the number of skiers and number of snowboarders on a mountain
B. the positive correlation between the sales of cell phones and the sales of televisions in a store
C. the positive correlation between the number of typing classes a student takes and the number of words per minute the student can type
D. the positive correlation between the number of shopping carts at a store and the number of cash registers in the store
Answers
Answer: A is the correct answer
Drag the similar figure into the table.
Answers
Answer:
The purple on cause they equal a 90 degree angle
Step-by-step explanation:
The similar triangle is given in the attached image below.
What are similar triangles?Those triangles that looks the same but different in sizes.
And in the similar triangle,
the corresponding sides in proportion to each other and corresponding angles are equal to each other.
Given:
The triangle have sides 3, 4 and 5.
And the angle measure,
37° and 53°.
To find the similar triangle:
The corresponding sides should be in proportion to each other.
And the corresponding angles should be congruent.
The similar triangle is given in the attached image.
Therefore, the similar figure is given in the attached image.
To learn more about the similar triangle;
https://brainly.com/question/14926756
#SPJ5
ANSER BOTH QS FOR BRIANLYEST NEED HELP WILL GIVE BRAINLEST
Answers
Step-by-step explanation:
on the first one you can actually draw a number line and show a positive side and the negative side so you can actually decide the spacing like we can say the scale like one centimetre represents 4/4 like what I did.
On the second one you can actually choose to write any kind of situation that you prefer for instance, i chose Point Marks that you're given in an exam. If you didn't give the assignment on time then you get -5 then you gave the assignment on time you get +5 marks then sometimes you get zero marks like you fail the assignment you get zero then the zero always represents the neutral number like a marker that differentiates the integers from negative to positive and vice versa.
Answer this question for brainliest!
Answers
Answer:
1/2k-3/5
Step-by-step explanation:
2/5k-3/5+1/10k
2/5k+1/10k-3/5
5/10k-3/5
1/2k-3/5
3.8 x 10^4 in usual form
Answers
Answer:
38000
Step-by-step explanation:
3.8 X 10^4 = 38000
Twila decides to purchase several party trays for her holiday party. She sees that a local store has relish trays for
$18.95, cheese and cracker trays for $23.99, and cookie trays for $25.49. The store also has a coupon in its flyer for
$5 off any purchase of $50 or more on party trays. Twila orders 1 relish, 1 cheese and cracker, and 2 cookie trays. At
this store, discount coupons are applied after tax is calculated so a sales tax of 8% was added to Twila's purchase,
and then coupon amount was deducted. If Twila was charged $96.43, determine if she paid the correct amount.
a. Twila paid the correct amount for her purchase.
b. Twila paid $4.00 too little for her purchase.
Twila paid $0.40 too much for her purchase.
d. Twila paid $2.51 too much for her purchase.
C.
Answers
Answer:
answer A. twaila paid the correct amount for her purchase
Twila has paid the correct amount for her purchase. Calculation of total amount is provided below
Find the Total Amount
Total Amount = [tex]Purchase value + Tax - Discount[/tex]
What information do we have
Price of one relish tray = $18.95
Price of one cheese & cracker tray = $23.99
Price of one cookie tray = $25.49
So,
Purchase Value = Price of 1 relish tray + 1 cheese & cracker tray + 2 cookie trays
[tex]18.95 + 23.99 + 25.49 + 25.49[/tex]
= [tex]93.92[/tex]
Tax = 8% of value
= [tex]8[/tex] % of [tex]93.92[/tex] = [tex]7.5136[/tex]
Discount = $ [tex]5[/tex]
Putting values in formula,
Total Amount = [tex]93.92 + 7.5136 - 5[/tex]
It is equal to 96.43
Hence, Total Amount paid by Twila is Correct
To learn more about Total Amount, refer https://brainly.com/question/12142770?referrer=searchResults
PLEASE HELP
how many solutions does this equation have? 12+2x-8=7x+5-5x
Answers
Answer:
no solution
Step-by-step explanation:
STEP 1: Since x is on the right side of the equation, switch the sides so it is on the left side of the equation.
[tex]7x+5-5x=12+2x-8[/tex]
STEP 2: Subtract 5x from 7x.
[tex]2x+5=12+2x-8[/tex]
STEP 3: Subtract 8 from 12.
[tex]2x+5=2x+4[/tex]
STEP 4: Move all terms containing x to the left side of the equation.
[tex]5=4[/tex]
STEP 5: Since 5≠4, there are no solutions.
No solution
Center(-4,2) radius 7. What’s answer ??
Answers
Answer:
C
Step-by-step explanation:
(x+4)^2+(y-2)^2=49
C
Hey can you solve for both please
Answers
A=92 on the second one
The graph shows the cost of Hannah's piano
lessons over time. Find the slope of this line.
Show two methods. What does the slope mean
in this situation?
Piano Lessons
Answers
Answer:
The slope represents here the increase of hours and cost of Hannah's piano lessons over time.
Answer:
hJ^e$nabzdBHrna
Step-by-step explanation:
Which is the reciprocal of -13/7
Answers
Answer:
-7/13
Step-by-step explanation:
To find the reciprocal of a number, either divide the number by 1 or switch the numerator and denominator
7 1/2 ÷ (2 1/4 - 5 1/8)
Answers
Answer:
- 60/23
Step-by-step explanation:
Answer:
-2.4
Step-by-step explanation:
I need to find the exponent of ten!
Answers
Answer:
100
Step-by-step explanation:
Answer:
Its 1
Step-by-step explanation:
The Hu family goes out for lunch, and the price of the meal is $52. The sales tax on the meal is 6%, and the
family also leaves a 15% tip on the pre-tax amount. What is the total cost of the meal?
The total cost of the meal is $____
Answers
Answer:
62.92
Step-by-step explanation:
21 percent of 52$ is 10.92 then add em together hope it helps
Please help!!!!!!!!!!
Answers
Answer:
no clue
Step-by-step explanation:
boo
Type the integer that makes the following subtraction sentence true.
?-(-5)=7
Answers
Answer:
the answer is 2
Step-by-step explanation:
2-(-5)=7
remember keep,change,flip
the new equation will be
2+5=7
Answer:
the answer is 2
Step-by-step explanation:
The negative symbols make it tricky. Just remember, 2 negatives = a positive.
so x- -5 = 7
Sense 2 negatives equals positive, that means we are adding 5, not subtracting negative 5.
so our new problem is x + 5 = 7
If we run the problem backwards now, (7-5=x) then we get 2
Hoped this helped, and let me know if you don't understand anything!
200 , 000 + ( 60 ) V 1 = 300 , 000 + ( 25 ) V 1
Answers
Answer:
dddddd
Step-by-step explanation:
lol
Answer:
d
Step-by-step explanation:
i think
Graph the line by plotting any two ordered pairs that satisfy the equation.
y = x - 2
Answers
I chose (3,1) and (6,4)
1 = 3-2
4=6-2
Plot the two ordered pairs and connect the dots to draw a line.
How do you solve
8x(x^2+ 2x -4)
Answers
Answer:
answer and explanation in the pic above
hope it helps
The decimal -2.97 is the solution to which subtraction problem?
-6.1 - 3.13
-6.1 - (-31.3)
-0.61 - (-3.13)
-6.1 - (-3.13)
-6.1- 3.13 -6.1 - (-3.13) -0.61 - (3.13) -6.1 - (3.13)
Answers
Answer:
Option 4: -6.1 - (-3.13)
Step-by-step explanation:
Let's solve each option individually to see if -2.97 fits as the solution:
-6.1 - 3.13 = -9.23
-6.1 - (-31.3) = 25.2
-0.61 - (-3.13) = 2.52
-6.1 - (-3.13) = -2.97
As you can see, -2.97 is the answer to Option 4.
So, the decimal -2.97 is the solution to the subtraction problem in Option 4.
Answer:
Its D
Step-by-step explanation:
Got it right brother
In basketball, each shot made is worth 1, 2, or 3 points. Miles scored a total of 27 points in his most recent game. He made three 1-point shots and four 3-point shots.
Answers
Answer:
he made 6 2 point shots.
Step-by-step explanation:
here's why......... 3 times 1 is 3 and 3 times 4 is 12 in total that's 15 and 27-15 is 12 and 12 divided by 2 is 6.
Answer:
This is False
Step-by-step explanation:
Because if he made 3 1-point shots then 4 3-point shots, 3 multiplied by 1 is 3 and 4 multiplied by 3 is 12, and 12 multiplied by 3 is 36. So therefore he scored a total of 36 points. Thank me later :)
Help with all part o need help with this as asap
Answers
Question 2 Part 1 Answer: The answer is 3x = y.
Question 2 Part 1 Step-by-step explanation: When you see 2 as [tex]x[/tex] and 6 as [tex]y[/tex], divide [tex]y[/tex] by [tex]x[/tex] and you basically get 3. Do the same thing with 4 as [tex]x[/tex] and 12 as [tex]y[/tex].
Question 2 Part 2 Answer: The answer is [tex]33.\stackrel{-}{3} \%[/tex].
Question 2 Part 2 Step-by-step explanation: Basically, anything divided by three gets a percentage of [tex]33.\stackrel{-}{3} \%[/tex].
Question 2 Part 3 Answer: The answer is 270.
Question 2 Part 3 Step-by-step explanation: You can use proportions to solve this problem or do it by typing the first entry on a graphing calculator (x-intercept is your answer):
[tex]\frac{6}{18}=\frac{90}{x}\\\\\frac{6}{18}=\frac{90}{270}[/tex]
Done!
To find 8 ×17, I double and halve
Answers
Answer:
what is the question?
Step-by-step explanation:
Two sides of a triangle have the following measures. Find the range of possible measures for the third side.
6) 7, 8
Answers
Answer:
1 and 15
Step-by-step explanation:
8-7=1
8+7=15