Answer:
2
Step-by-step explanation:
3*8=24
What is the solution to the inequality below
Answer:
x² ≤ 16
x²-16 ≤ 0
x²-4²≤0
(x-4)(x+4) ≤ 0
-4 ≤ x ≤ 4
B. is the right answer.
What is the value of E(-1) n (3n+2)?
====================================================
Explanation:
The weird looking E symbol is the greek uppercase letter sigma. It refers to a sum.
It tells us to add up terms in the form (-1)^n*(3n+2) where n is an integer ranging from n = 1 to n = 4.
------------------
If n = 1, then we have
(-1)^n*(3n+2) = (-1)^1*(3*1+2) = -5
Let A = -5 as we'll use it later.
------------------
If n = 2, then
(-1)^n*(3n+2) = (-1)^2*(3*2+2) = 8
Let B = 8 since we'll use this later as well
------------------
If n = 3, then
(-1)^n*(3n+2) = (-1)^3*(3*3+2) = -11
Let C = -11
-------------------
If n = 4, then
(-1)^n*(3n+2) = (-1)^4*(3*4+2) = 14
Let D = 14.
--------------------
We'll add up the values of A,B,C,D to get the final answer
A+B+C+D = -5+8+(-11)+14 = 6
This means that
[tex]\displaystyle \sum_{n=1}^{4}(-1)^n(3n+2) = 6[/tex]
EMERGENCYYYYYYY ANSWER THIS PLS I HAVE ONLY 2 MINS
140,000+36.25+1,000=
Answer:
141036.25
Step-by-step explanation:
Answer:
141036.25
Step-by-step explanation:
You have 10 pairs of socks, five black and five blue, but they are not paired up. Instead, they are all mixed up in a drawer. It’s early in the morning, and you don’t want to turn on the lights in your darkroom. How many socks must you pull out to guarantee that you have a pair of one colour? How many must you pull out to have two good pairs (each pair is the same colour)? How many must you pull out to be certain that you have a pair of black socks?
Answer:
Go turn a light on.
Step-by-step explanation:
Flip the light switch
64 + (5 ÷ 3) - 2^3
help me plz
Answer:
57.67
Step-by-step explanation:
64+1.67-8
65.67-8
57.67
Emily read 20% of her book containing 575 pages. What page is she going to read next?
Answer:
She is going to read 116 next she is on 115 right now.
Step-by-step explanation:
Hope I helped!
Have a great day.
find the exact value of tan30⁰ × cos30⁰
give your answer in its simplest form
ANSWER:
tan(30⁰)=√3/3
cos(30⁰)=√3/2
switch sides:sin(x) /√3/2 =√3/3
multiply both sides by 3:3·sin(x) /√3/2 =3·√3/3
simplify:2√3 sin (x) =√3
divide both sides by 2√3:2√3 sin (x) / 2√3 = √3 / 2√3
simplify:sin (x)= 1/2
will make brainliest what is 2,837 to the nearest 10????????????????????????
Answer:
2,840
Step-by-step explanation:
since the three is in the tens place and 7 in single if 5 and up round up fi 4 and below leave it alone you will then take the 3 and round up to give you 2,840
Translate (4,3) to the left 3 units. Then reflect the result over the y-axis. What are the coordinates of the final point?
Find the value of X.
Answer:
i think 32
Step-by-step explanation:
128÷12 = 10.6666666666
10.6666666666×3 = 32
Make me brainliest
Study time (hours)
The scatter plot shows the relationship between exam score and study time. Which statements are correct?
A)
Each additionally hour of studying is associated with an additional 10 point
increase in exam score.
B)
The model predicts that studying for 1.5 hours will result in an exam score
of 60.
The model predicts that studying for 2.5 hours will result in an exam score
of 70.
The model redirts that cturving for 4 hours will recuilt in an ovam ccaro of
Answer:y’all it’s all of them ABE
Step-by-step explanation:
The statements that are correct are:
B) The model predicts that studying for 1.5 hours will result in an exam score of 60.
C) The model predicts that studying for 2.5 hours will result in an exam score of 70.
A scatter plot is a collection of points plotted on two axes, horizontal and vertical. Scatter plots are useful in statistics because they illustrate the extent, if any, of correlation between the values of observed quantities or phenomena (called variables).
The scatter plot shows a positive relationship between study time and exam scores, with exam scores generally increasing as study time increases. However, the relationship is not linear and the increase in exam score is not always 10 points for each additional hour of study.
A) is not correct because the relationship between study time and exam score is not linear, and the increase in exam score is not always 10 points for each additional hour of study.
D) is not correct because the wording is unclear, it should be "The model predicts that studying for 4 hours will result in an exam score of (a specific number)".
Learn more about scatter plots here:
https://brainly.com/question/29231735
#SPJ6
How much is 645 divided by 5
Step-by-step explanation:
129
hope it helps
please mark me as brainlist
Answer:
it is 129
Step-by-step explanation:
Mae Ling earns a weekly salary of $325 plus a 7.5% commission
on sales at a gift shop. How much would she make in a work week if she sold
$5,800 worth of merchandise? Write in money format.
Answer:
$760
Step-by-step explanation:
Given data
weekly = $325
commission= 7.5%
if she sold $5,800 worth of merchandise
Her earnings will be
Week earning= base salary+ 7.5% of sales
Week earning= 325+ 7.5/100*5800
Week earning= 325+ 0.075*5800
Week earning= 325+ 435
Week earning= $760
28 is 12 less than k.
Answer:
k=40
Step-by-step explanation:
subtract 12 from k we would get 28
plz hurry
How many faces does the solid made from the net below have?
A shape has a pentagon base. There are 5 triangles on the sides.
5
6
10
15
Answer:
6
Step-by-step explanation:
I
did quiz.
The net of the solid is a plane shape, and The net of the solid is made from 6 faces
How to determine the number of faces?From the question, we understand that:
Sides = 5 trianglesBase = 1 pentagonSo, the number of faces is:
Face = Triangle + Pentagon
This gives
Face = 5 + 1
Face = 6
Hence, the net of the solid is made from 6 faces
Read more about surface areas at:
https://brainly.com/question/6613758
#SPJ2
If 40 chairs are bought for Rs
10000 then how many
chairs must be
Sold
for
10000
gain 60%?
Answer:
25 chairs
Step-by-step explanation:
If 40 chairs are bought for Rs 10000 then how many chairs must be sold for Rs 10000 so as to gain 60%?
The percent gain = 60%
Number of chairs to be sold = x
Hence:
40 chairs = 10,000
60/100= 40 - x/x × 100
0.6= 40 - x/x
Cross Multiply
0.6x = 40 - x
0.6x + x = 40
1.6x = 40
x = 40/1.6
x = 25 chairs
Does anyone know the next number in this pattern?? 125,-25,5,-1
Answer:
1/5
Step-by-step explanation:
you're dividing by -5
Plllllwaaaaasseeee hellollll
Suppose you are given two quadrilaterals, ABCD EFGH. If the similarity ratio of ABCD to EFGH is 4:3, and it EH =
60, find AD
a. 45
0.90
b. 40
d. 80
Please select the best answer from the choices provided
B
Look at image^^^
Answer:
d. 80
Step-by-step explanation:
Similarity ratio of ABCD to EFGH = 4:3.
This implies that the ratio of AD to EH = 4:3
If EH = 60, then:
AD:60 = 4:3
AD/60 = 4/3
Multiply both sides by 60
AD = ⁴/3 × 60
AD = 80
SIMPLIFY -3/4( 8/9Y - 18) - 3/5(5/6Y + 25)?
Answer:
I believe the answer is
-7y+9/6
Answer:
-7/6 y -3/2
Step-by-step explanation:
13 Marcel caughtone fish that weighed
7.5 pounds and another fish
that weighed
2.13 pounds. How much did both fish
weigh-in all?
Answer:
7.5+2.13= 9.63
Step-by-step explanation:
Domesticated animals were primarily valued for meat.
true or false
Answer:
False
Step-by-step explanation:
Hope this helps :)
Please help me with this question
Answer:
Domain: [-3, 1)
Range: [-5. 4]
A professor grades a set of exams and then computes the quartiles:
Q0 = 60. Q1 = 70. Q2 = 80 Q3 = 87. Q4 = 95
If the professor curves every grade up by 10 points, then how will Q2 be affected by the curve?
I. It will increase by 10 points
ii. It will be 10 points higher than the median for the noncurved data
III It will be halfway between Q1 and Q3 for the curved data
a. I only
b. II and III
c. I, II and III
d. I and II
e. I and III
Answer:
Answer is c. I, II and II
Step-by-step explanation:
Solution:
Answer is c. I, II and II
It will be increase by 10 points and it will be 10 points higher than the median for the noncurved data. and it will be halfway between Q1 and Q3 for the curved data.
Median for noncurved data = Q2 = 80
Median for curved data = 90
It will increase by 10 points = 90
It will be 10 points higher than the noncurved data = 90-80 = 10 points
if the set contains 20 values then, noncurved data will be:
60 _ _ _ _ 70 _ _ _ _ 80 _ _ _ _ 87 _ _ _ _ 95
Curved data will be: (all grades increased by 10 points)
70 _ _ _ _ 80 _ _ _ _ 90 _ _ _ _ 97 _ _ _ _ 105
Here, we can see median = Q2 = 90, exactly, halfway between Q1 =80 and Q3 = 97
Hence, C is the right answer
How long would it take to travel 315 mi at the rate of 45 mi/h
A. 7 hours
B. 270 hours
C. 360 hours
I NEED HELP ASAP!!! I WILL GIVE BRAINLES
Answer: A. 7 hours
Step-by-step explanation: divide
What is the simplified form of each expression?
21. 2x + 5x + 4x
A. 11 + 3x
B. 7x
C. 11x
D. 7x + 4x
Answer:
C
Step-by-step explanation:
They all share a common variable so you can add them all together to get the simpliest form.
Andrew borrowed $700 from the bank to start a pressure washing business. The bank charged a simple interest rate of 7% per year. If it takes Andrew 3 years to pay back the loan, how much interest will he pay?
Answer:
$147Step-by-step explanation:
Given:
Loan amount = $700Interest rate = 7% simpleTime = 3 yearsInterest amount:
$700*3*0.07 = $147Answer:
Simple interest=(Principal×Rate×Time)/100
Principal=$700, Rate=7%, & Time=3 years
→S.I. = (700×7×3)/100 = 147
Andrew has to pay a interest of $147.
Please help me I don’t get it
Answer:
x=8°
Step-by-step explanation:
If two sides are equal than there angles are also equal.
2x+40+5x+22+5x+22=180
12x+84=180
12x=180-84
12x=96
x=96/12
x=8°
Evaluate the expression: (10) -3x (-2) +5
Answer:
-3x(-2)+15
Step-by-step explanation:
add the numbers
which angle is the smallest angle
Answer:
angle c
Step-by-step explanation:
Answer:
should be angle c if im correct
i need help
(64-4) / 2-7^2
Answer:
-19
Step-by-step explanation:
60/2-7²
30-49
-19