Answer:
4u = <-28, -8>
Step-by-step explanation:
Since we are multiplying by a scalar, we can distribute 4 to both the components:
4u = <4*(-7), 4*(-2)>
4u = <-28, -8>
In the formula that gives the circumference of a circle, which quantity is
multiplied by 2(pi)?
A. Radius
B. Diameter
C. Area
D. Circumference
a (radius)
saddsaasdasd
Answer:
Radius
Step-by-step explanation:
Correct answer in Ap3x. Just took the quiz.
A car company hires a marketing firm to advertise a particular model of car. After a year the marketing company presents the following graph to show the increase in sales resulting from their advertising campaign.
Answer:
Yes, the graph makes it appear as if sales increased three folds.
Step-by-step explanation:
The graph presented by the advertising company is misleading, as it attempts to exaggerate the effect of its advert on sales. This can be attributed to the scale which is isn't uniform.
Last year sale was about 137000 and it grew to 150000 as a result of advertisement.
But from the bar chart, it seems there was three times increase in sales.
Which is the best estimate of 2pi(2)
A. 12 B. 16 D. 20 D. 24
Answer:
Equal 12.5
choose : A. 12
Sara has just purchased a house. She has a $360,000, 30-year mortgage with interest at an annual rate of 5.5% a year, compounded continuously.
(a) Assume that Sara pays her mortgage continuously with a fixed amount, then her monthly payment is $___.
(b) If she pays an extra $300 each month, then she can pay off the mortgage in about years and months.
(c) Sara can save about $____by paying an extra $300 each month.
Answer:
a) $2043.14
b) 22.19 years
c) $113,995.6
Step-by-step explanation:
Value of Mortgage ( P ) = $360,000,
Loan Tenure = 30 years
Annual Interest rate = 5.5% = 0.055
monthly interest rate ( m ) = 0.055 / 12 = 0.00458
number of payments ( n ) = 30 * 12 = 360
a) Determine Sara's monthly payment given that Sara pays continuously at a fixed amount
Monthly payments ( M ) = ( P * m ( 1 + m )^n ) / (( 1 + m )^n - 1 )
= ( 360,000 * 0.00458 ( 1.00458)^360 / ((1.00458)^360 - 1 )
= $2043.14
b) when she pays a n extra $300 every month determine time ( n ) when she can pay off the mortgage
i.e. M = 2034.14 + 300 = $2334.14
calculate the value of n from the equation below
M = ( P * m ( 1 + m )^n ) / (( 1 + m )^n - 1 )
n = - In | 1 -(( Pm) /M )) |/ In | 1 + m |
= -In | 1 - (( 360,000 * 0.00458) / 2334.14 )) | / 0.0045
= -In ( 1 - 0.70638436 ) / 0.0045
= 1.225 / 0.0046 = 266.30 months = 22.19 years
c) Determine how much Sara can save
Total amount paid using fixed monthly payment = 2043.14 * 30 * 12 = $735,530.4
Total amount paid by adding an extra $3000 each month
= 2334.14 * 22.19 * 12 = $621,534.80
amount saved = 735,530.4 - 621,534.80 = $113,995.6
Help plz:)))I’ll mark u Brainliest
Answer:
21/35
Step-by-step explanation:
Given :
A right angled triangle with sides 28 , 35 ,21 .And we need to find the value of cos A. We know that cosine is the ratio of base and Hypotenuse. So that ,
[tex]:\implies[/tex] cos A = b/h
[tex]:\implies[/tex] cosA = 21/35
[tex]:\implies[/tex] Hence the required Answer is 21/35.Which expression is equivalent to −2(x − 3)2 + 9?
A) 2x^2 + 12x + 9
B) 2x^2 + 12x − 9
C) −2x^2 + 12x + 9
D) −2x^2 + 12x − 9
Answer:
Step-by-step explanation:
-2x + 16
Help me plz plz plz plz plz plz plz plz plz plz plz plz plz :(
A garden store purchased a lawn mower and marked it up 160% from the original cost of $82.67. A week later, the store placed the lawn mower on sale for 10% off. What was the discount price?
Answer:
193.45
Step-by-step explanation:
The discount price is $69.4428.
What is Unitary Method?The unitary technique involves first determining the value of a single unit, followed by the value of the necessary number of units.
For example, Let's say Ram spends 36 Rs. for a dozen (12) bananas.
12 bananas will set you back 36 Rs. 1 banana costs 36 x 12 = 3 Rupees.
As a result, one banana costs three rupees. Let's say we need to calculate the price of 15 bananas.
This may be done as follows: 15 bananas cost 3 rupees each; 15 units cost 45 rupees.
Given:
A garden store purchased a lawn mower and marked it up 160% from the original cost of $82.67.
So, the Marked up amount
= 160 % of 82.67
= $132. 272
and, then 10% discount
= 10% of 132.272
= 13.2272
so, the discount price = 82.67 - 13.2272 = $69.4428
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what is the area of the object above
Answer:
62 sq cm
Step-by-step explanation:
if you find the area of the entire shape (12x6) you can then subtract out the cut-out portion (5x2)
72 - 10 = 62
What is the solution to A=7x+40
9514 1404 393
Answer:
x = (A -40)/7
Step-by-step explanation:
Maybe you want to solve for x.
A = 7x +40 . . . . . given
A -40 = 7x . . . . . subtract 40
(A -40)/7 = x . . . divide by 7
The value of x will be ...
x = (A -40)/7
Donations of $ 375 in March to a homeless shelter are 250% of what they were in February. What were the donations to the shelter in February?
Answer:
I think 750
Step-by-step explanation:
250 percent more right?
whats 7 times 8 divided by 2 i think the answer s 6 am i right or ring please tell me
Answer:
28Step-by-step explanation:
First,
7 times 8 = 7 × 8 = 56
Then,
The product divided by 2 = 56 ÷ 2 = 28
Hence,
The required answer is 28
A quality control expert at a drink bottling factory took a random sample of bottles from a batch and measured
the amount of liquid in each bottle in the sample. The amounts in the sample had a mean of 503 mL and a
standard deviation of 5 mL. They want to test if this is convincing evidence that the mean amount for bottles in
this batch is different than the target value of 500 mL.
Let u be the mean amount of liquid in each bottle in the batch.
Which of the following is an appropriate set of hypotheses for their significance test?
Answer: A
Step-by-step explanation:
The correct hypothesis is Option A.
What are hypotheses in mathematics?A hypothesis is a supposition or suggested explanation for a phenomenon or issue. It is a preliminary claim that has to be examined and confirmed by logic, experimentation, or other means. A hypothesis can be used to steer the development of a theory or to make predictions about events that will happen in the future.
The appropriate set of hypotheses for this significance test is:
μ = 500 mL (null hypothesis) - The mean amount of liquid in each bottle in the batch is equal to the target value of 500 mL.
μ ≠ 500 mL (alternative hypothesis) - The mean amount of liquid in each bottle in the batch differs from the target value of 500 mL.
This is done in order to determine whether there is proof that the average volume of the bottles in this batch differs from the desired value of 500 mL.
The alternative hypothesis suggests that the mean quantity is different from the null hypothesis assumption that it is equal to 500 mL. The test will evaluate whether there is enough support for the alternative hypothesis to be accepted instead of the null hypothesis.
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HELP ME PLEASEEEEEEEEEEEEEEEEEEE
Answer:
The answer is C: Rectangular Prism
Step-by-step explanation:
A $120.00 pair of shoes at your nearby department store is marked up 4% and then is offered at 45% off. If sales tax is 13%, what is the total amount of tax that must be paid for this pair of shoes?
i need answer ASAP
Answer:
$26
Step-by-step explanation:
0.8(X - 3) = 18.4
X - 3 = 23
X = 26
find the vertex of the graph of the following quadratic equations y=2x^2-8x+9
Which is smaller 2.5 or.5?
Which is a stretch of an exponential decay function?
f(x) =
O f(x) =
O Rx) =
O f(x)=
The exponential function [tex]f(x)=(\frac{5}{4}) (\frac{4}{5} )^x[/tex] represent a stretch of exponential decay
Exponential functionAn exponential function is given by:
y = abˣ
where a is the initial value of y at x = 0, y, x are variables and b is the multiplication factor
If b > 1, it is an exponential growth whereas if b < 1, it is an exponential decay.
The exponential function [tex]f(x)=(\frac{5}{4}) (\frac{4}{5} )^x[/tex] represent a stretch of exponential decay
Find out more on Exponential function at: brainly.com/question/12940982
7th grade math problem please help !!
Answer:
136 units^2
Step-by-step explanation:
which expression represents the area of the Shaded triangle 1/2 × (6.2) x (1.9) 1/2×(5.7)×(1.9) 1/2×(6.3)×(4.3) 1/2×(5.7)×(4.3)
Answer:
B 1/2 x (5.7) x (1.9)
Step-by-step explanation:
a bank loaned out $19000, part of it at the rate of 7% per year and the rest at 15% per year. if the interest received in one year totaled $2000, how much was loaned at 7%? How much of the $19000 did the bank loan out at 7%?
Answer:
10625
Step-by-step explanation:
Let x= the amount loaned at 7%
which means that the amount loaned at 15% is 19000-x (or the rest of the money)
we can write the following equation
x*.07+(19000-x)(.15)=2000
solve for x
.07x+2850-.15x=2000
-.08x= -850
x=10625
A recipe uses 1 ¼ cups of milk to make 10 servings. If the same amount of milk is used for each serving, how many servings can be made using 2 gallons of milk?
Answer:
128 is your answer
Step-by-step explanation:
1 gallon of milk will make 128 servings.
100% Correct hope this helps ツ
Answer:
25
Step-by-step explanation:
16 cups = 1 gallon
1 1/4 * 12 = 15 (12 cups)
15 * 2 = 30 (24 cups)
30 + 1 1/4 = 31 1/4 (25 cups)
Brainliest please UwU
Someone plzzzzz give me the answer for this. Btw I know if you add them all it would be A but there are 3 lines left then add them all. So basically just give me the answer plzzz I really need your help.
Answer:
Option D. 37¼ ft
Step-by-step explanation:
The perimeter of the figure above can be obtained by adding all the lengths of each sides together. This can be obtained as follow:
The lengths of each sides are given below:
Top = 6¼ ft
Left = 9⅛ ft
Bottom = 9½ ft
Right = 7¾ ft
Top horizontal = 9½ – 6¼
= 19/2 – 25/4
= 13/4 ft
Top height = 9⅛ – 7¾
= 73/8 – 31/4
= 11/8 ft
Perimeter = 6¼ + 9⅛ + 9½ + 7¾ + 13/4 + 11/8
= 25/4 + 73/8 + 19/2 + 31/4 + 13/4 + 11/8
= 149/4
= 37¼ ft
Thus, the perimeter of figure is 37¼ ft
How do I figure out what x equal on an adjacent angle
Answer:
Find the value of one the subtract it from 180
Step-by-step explanation:
Solve for X in interesting lines by finding the value of one adjacent angle and subtracting it from 180 degrees.
5n - 12 = -3n + 4
30 points
Answer:
n = 2
Step-by-step explanation:
5n - 12 = -3n + 4
5n + 3n = 4 + 12
8n = 16
n = 2
Answer:
5n-12=-3n+4
5n+3n=4+12
8n=16
n=16/8
n=2
Step-by-step explanation:
The weight of oranges growing in an orchard is normally distributed with a mean weight of 7 oz. and a standard deviation of 1.5 oz. Using the empirical rule, determine what interval would represent weights of the middle 99.7% of all oranges from this orchard.
please help
Answer:
2 to 11 ounces would be the interval.
Step-by-step explanation:
Add 3 standard deviations above and below the mean to get the range in which 99.7% of the data in a normal distribution will fall
6.5 + 4.5 = 11
6.5 - 4.5 = 2.
Hope this helped!
The interval that would represent the weights of the middle [tex]99.7\%[/tex] of all oranges from this orchard is between [tex]2.5[/tex] and [tex]11.5[/tex] such that weight and standard deviation are [tex]7\;\text{oz.}[/tex] and [tex]1.5\;\text{oz.}[/tex] respectively.
Empirical RuleThe empirical rule formula states that [tex]68\%,95\%[/tex] and [tex]99.7\%[/tex] of all the data can be represented in the interval of [tex]1, 2[/tex] and [tex]3[/tex] standard deviation of the mean respectively.
How to use the empirical rule formula to determine the interval?Mean weight [tex]=7\;\text{oz.}[/tex]
Standard deviation [tex]=5\;\text{oz.}[/tex]
According to the empirical rule, [tex]99.7\%[/tex] of values lie within [tex]3[/tex] standard deviations of the mean.
So, we have to add and subtract [tex]1.5[/tex] three times in mean weight to obtain the required interval.
[tex]\Rightarrow7-4.5 < 7 < 7+4.5\\\Rightarrow2.5 < 7 < 11.5[/tex]
Thus, the interval that would represent the weights of the middle [tex]99.7\%[/tex] of all oranges from this orchard is between [tex]2.5[/tex] and [tex]11.5[/tex].
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Find the surface area of the composite figure.
2 cm 6 cm
14 cm
8 cm
8 cm
4 cm
6 cm
2 cm
Is there a pattern behind prime numbers?
Answer:
There is a rule on how we find prime numbers.
Step-by-step explanation:
A clear rule determines exactly what makes a prime: it's a whole number that can't be exactly divided by anything except 1 and itself. But there's no discernible pattern in the occurrence of the primes.That's because, after the number 5, there are only four possibilities — 1, 3, 7, and 9 — for prime last digits
Find all the missing elements.
Round to the nearest tenth.
C
a
b
a = 5
b = 2
C = 6
B
A
С
A = [?]° B = [ 1° C = [ 1°
Answer: A= 51.3 B= 18.2 C=110.5
Step-by-step explanation:
Which set of three angles could represent the interior angles of a triangle?
O 19°, 70°, 91°
O 47°, 12°, 31°
O 50°, 20°, 20°
O 25°, 25°, 100°
Answer:
19 degrees, 70 degrees, and 91 degrees.
Step-by-step explanation:
The interior angles of a triangle sum to 180 degrees. 19 plus 91 is equal to 110, add 70 to 110 and you'll get 180. :)
i need a huge amount f help
give the question and I will try if I couldn't srry
