Answer: YE
Step-by-step explanation:
TOTALLY
Given the vectors v=3i-2j and w=-i+5j, find v · w.
v * w = (3i - 2j) *(-i + 5j) = 3(-1) + (-2)(5) = -3 + -10 = -13
Hope that helps!
Answer:
v.w = -13
Step-by-step explanation:
v.w = (3i - 2j).(-i + 5j) = 3 × -1 × i.i + 3 × 5 × i.j + -2×-1 × j.i + -2×5 × j.j
i.i = j.j = 1 , i.j = j.i = 0
→
v.w = -3 - 10 = -13
Part A . If i sell 2 skeins for 5 dollars what is the cost per skin of yarn
Part B. I need 6 skeins of yarn to make an afghan. How much will the yarn cost
Answer: Part A = $2.50, Part B. $15.00
Step-by-step explanation:
Part A. Since 2 skeins of yarn cost 5 dollars, that means each skein must cost 5/2 dollars = $2.50
Part B. Since we know each skein costs $2.50, 6 skeins of yarn would cost 2.5*6 = $15.00
#2
No of skeins=6
Cost=6(2.5)=15$help me please im grade 8 and that qustion id from revel
Shirley estimated the length of a board to be 18 inches. The actual length is 23 inches. To the nearest tenth of a percent, what is the percent error of Shirley's estimate? Enter your answer as a decimal in the box.
The percent error of Shirley's estimate is 21.74%
Calculating pecent errorGiven the following parameters
Actual length = 23 inchesEstimated length = 18in% error = actual-estimated/actual * 100
% error = 23-18/23 * 100
% error = 500/23
% error = 21.74%
Hence the percent error of Shirley's estimate is 21.74%
Learn more on percent error here: https://brainly.com/question/5493941
Answer:
The Correct Answer Is : 21.7
Step-by-step explanation:
I Just Took The Test
Use distributive property to calculate the following.
1.) 2(x + y)
2.) 6 x (8 + 10)
3.) 21 x (40 - 10)
Answer:
Step-by-step explanation:
1. 2x + y
2. 48 + 60 = 108
3. 840 - 210 = 630
What is the approximate value to the nearest half of 30?
[tex]Answer:[/tex]
15
The nearest half is between two numbers.
Here, those 2 numbers are 0 and 30. 15 is in-between.
Therefore, the correct answer would be 15.
HELPPPPPP MEEEEEEEEE
Answer: this are the answers and your formula is (x+2, y-5)
k' (-1,-3)
i' (3,-1)
m' (1,-5)
n' (-3,-7)
............................
a cash register is worth 620$, 100 cash registers are worth 62000.
The cost per cash register increases by a rate of 7% continuously compounded. How much would one NEW cash register cost in 10 years’ time?
The value per cash register decreases at a rate of 7% each year. How much will one OLD cash register be worth in 10 years’ time?
Answer:
The following selected transactions relate to cash collections for a firm that uses a cash register. Present entries to record the transactions for each of the two days of cash receipts from sales.
a. Actual cash in cash register, $5,353; cash receipts per cash register tally, $5,373 on December 31.
b. Actual cash in cash register, $3,712.95; cash receipts per cash register tally, $3,712.16.
Please help me with an explanation thank you!
Identify the reflection of the figure with vertices (−7,−67), (3,−47), and (12,32) across the -axis
x-axis:
(-7, 67), (3, 47), (12, -32)
y-axis:
(7, -67), (-3, -47), (-12, 32)
Determine the value of x in the diagram
Answer:
84 degrees because both angles are equal.
Answer:
It's 84 degree=x, There is a law about this angles that I studied in Engineering Mechanics.
help me. I need help
During a ten-minute science experiment, the temperature of a substance decreases at a constant rate. Which graph represents this situation? A.B.C
The children in Ms. Murray's class have to perform an investigation. The question their study must answer is "How do various types of plants differ in their physical features?"
What type of investigation must the children do?
Answer:
grow and observe them so you can watch how unique each one is
at a basketball game, a vendor sold a combined total of 236 sodas and hot dogs. The number of hot dogs sold was 32 less than the number of sodas sold. Find the number of sodas and the number of hot dogs sold
Answer:
176
Step-by-step explanation:
sodas.....................44+44+44=132
hot dogs............................44
132+44=176
CHECK YOUR WORK
176 X 3=528
DIVIDE 528 BY 3 =176
There are 3 green apples and 8 red apples in a basket what is the ratio of the red apples and the green to all the apples in the basket a. ratio for red b. ratio for green
Answer:
The answer is 3:8 or 3 to 8
Step-by-step explanation:
what was the water level at 0 minutes when Henry began to fill his tank
Answer:
0
Step-by-step explanation:
he hasn't started filling it yet
Answer:
0
Step-by-step explanation:
because he hasent even started to feel it up yet
What is the value of the expression below when x=5? *
6xto the power of 3 +8x
This should be the answer. if not, then i am confused.
Kyilah bought 41.19 grams of chili and 19.415 grams of sugar. Did Kyilah buy more chili or sugar?
Answer:
Chili I think, I don't know for certain
Step-by-step explanation:
Solve this problem 17(5)
Answer:
17x5 is 85
Step-by-step explanation:
ur welcome :))
Please help me I really need help with. What is -8.2x = 164 and what does x=
Answer:
x = -20
Step-by-step explanation:
Given equation:
-8.2x = 164
Divide both sides by -8.2:
⇒ -8.2x ÷ -8.2 = 164 ÷ -8.2
⇒ x = -20
[tex]\\ \rm\rightarrowtail -8.2x=164[/tex]
[tex]\\ \rm\rightarrowtail 8.2x=-164[/tex]
[tex]\\ \rm\rightarrowtail x=-164/8.2[/tex]
[tex]\\ \rm\rightarrowtail x=-20[/tex]
3/8 plus 1/2
Fractions
Answer:
7/8
Step-by-step explanation:
To add the fractions, find the LCD and then combine.
Answer:
We have to make sure the denominators are equal.
Since 2 is evenly divided by 8, we can multiply just one term to get a common denominator.
Multiply 1 by 4, and get 4, then we multiply 2 by 4 and get 8.
x4
So you multply 1/2 4/8 (muliply numerator)
x4
1/2 x 4/8 (multiply denominator
now 3/8+4/8
since denominators match you can add
3+4=7 so its 7/8
The grocery store is having a candy sale. Originally, a candy bar was $1.50. The
sale price is $0.50. What is the markdown rate? Round to the nearest whole
percent.
The markdown rate is 66.7%.
Markdown rateUsing this formula
Markdown rate= Change in price/original price×100
Let plug in the formula
Markdown rate=$1.50-$0.50/$1.50
Markdown rate=$1.00/$1.50×100
Markdown rate=66.66%
Markdown rate=66.7% (Approximately)
Inconclusion the markdown rate is 66.7%.
Learn more about markdown rate here:https://brainly.com/question/1153322
(15)/(k)=3 solve for k
Answer:
k=5
Step-by-step explanation:
15/5=3
hope it helps!
Answer:
k= 5
Step-by-step explanation:
15/k = 3
=15=3k
=k = 15/3
=k = 5
Please mark my answer the brainliest and rate me 5 star and follow me.please please please please please please
A student answers
92
%
of questions on a test before the end of class bell rings. If the student answers
46
questions before the end of class, how many questions are on the whole test?
Answer:
50 questions
Step-by-step explanation:
Given the following question:
92% of 50
To find the answer we have to use the formula to calculate percentage.
[tex]\frac{p\times n}{100}[/tex]
[tex]\frac{92\times50}{100} =92\times50=4600\div100=46[/tex]
[tex]=46[/tex]
Which means in total there was "50 questions" on the test.
Hope this helps.
Aaron makes a scale drawing of a rectangular park. The scale he uses is 2 in: 9 ft. What is the actual area of the floor of the park if the dimensions on the scale drawing are 4 in by 8 in?
Answer:
648 sq. ft.
Step-by-step explanation:
The ratio 2:9 can be modified, as any ratio can, as long as you multiply/divide the two sides by the same amount
If you need to find how much the 4-inch side is in ft., you can multiply both sides of the ratio by 2, since 2 x 2 is 4.
2:9 is the same as:
2 x 2: 9 x 2
4in : 18ft
18 ft. is the measurement of the first side
2:9 is also the same as:
2 x 4: 9 x 4
8in:36ft
36 ft. is the measurement of the second side
Multiply the two sides (width x length = area) to get the area of the park
18 x 36
= 648
PLS HELP ASAP ))
Dilate the triangle by a factor of 2 about the origin.
Answer:
the dilate is when you multiply the prime by the coefficient and the coefficient in this problem is -3 so -3x1=3
Step-by-step explanation:
in a school of 50 students, 12% are boys. how many are boys?
Answer:
6 boys
Step-by-step explanation:
12% of 50 is 6
Answer:
6 boys
Step-by-step explanation:
Given:
50 Student
12% are boys
Question:
How many are boys?
Solve:
Note that: 12% = .12
Thus, 50 x .12=6
50 -6 = 44
Hence, 44 are girls and 6 are boys
Answer = 6 boys
[RevyBreeze]
Please help! And no links
Answer:
0.800?
Step-by-step explanation:
i don't really know im just kinda guessing but would't it be right?
Answer:
56 degrees.
Step-by-step explanation:
It looks to me like they want you to find the original angle A and you need to use a scientific calculator unless you know advanced calculus. The arcsine or sine^-1 of 0.829 is approximately 56 degrees.
ANYONE SMART AT MATH NEED HELP
Michael is playing a game in which he must spin a spinner numbered 1-8 first, and then roll a die number 1-6. what is the probability that he will spin and roll a sum of 10?
