Answer:
are we in that same class like...
-jk-
it should be 565.5
Step-by-step explanation:
PLS ANSWER QUICK, HELP
Answer:
6 inches of paper:)!
Step-by-step explanation:
NANDARIINI RINNERIE MIRANI INDONESIA NOUTATI x2 - 7 when x = 8 mundo
Answer: 57
Step-by-step explanation:
x² - 7
When x = 8
= x² - 7
= 8² - 7
= 64 - 7
= 57
jawabannya adalah 57
A rectangular plaza measures 3/8 mile by 4/5 mile. What is its area?
Answer:
3/10
Step-by-step explanation:
then after reducing you get 3/10
The area of the rectangular plaza is 12/40 square miles or 0.3 square miles if the rectangular plaza measures 3/8 mile by 4/5 mile.
What is the area of the rectangle?It is defined as the space occupied by the rectangle which is planner 2-dimensional geometry.
The formula for finding the area of a rectangle is given by:
Area of rectangle = length × width
We have a rectangular plaza that measures 3/8 mile by 4/5 mile.
Here the length L = 3/8
And width W = 4/5
Area of rectangular plaza = L×W = (3/8)×(4/5)
= 12/40 square miles or
= 0.3 square miles
Thus, the area of the rectangular plaza is 12/40 square miles or 0.3 square miles if the rectangular plaza measures 3/8 mile by 4/5 mile.
Learn more about the rectangle here:
https://brainly.com/question/15019502
#SPJ2
1) Solve 2 + 7x + 12 = 0 using factoring and the zero product property.
a) Factor2+7x+12
b) Use the zero product property to solve for x
b) Use the zero product property to solve for x
Answer:
7x+14=0, 7x=-14, x= -2
Step-by-step explanation:
add like terms, then get x on one side, number on the other, then divide both sides by 7
PLEASE HELPS!!!!!!!!!!!!!!!!!!!!!!! I WILL GIVE BRAINLIEST AND EXTRA POINTS!!!!!!!!!!!!!!!!!!!!!
Answer:
Yes
Yes
No
No
Step-by-step explanation:
For which inequality is x = to 7
A. 12+ x <16
B 15+ x<24
C. 16+ x <23
D. 17+ x > 26
E. 24+x> 31
Answer:
C
Step-by-step explanation:
Answer:
B) 15 + x < 24
Step-by-step explanation:
The life in hours of a biomedical device under development in the laboratory is known to be approximately normally distributed. A random sample of 15 devices is selected and found to have an average life of 5625.1 hours and a sample standard deviation of 226.1 hours.
(a) Test the hypothesis that the true mean life of a biomedical device is greater than 5500 using the P-value approach.
(b) Construct a 95% lower confidence bound on the mean.
(c) Use the confidence bound found in part (b) to test the hypothesis
Answer:
Kindly check explanation
Step-by-step explanation:
H0 : μ = 5500
H1 : μ > 5500
The test statistic assume normal distribution :
Test statistic :
(Xbar - μ) ÷ s/sqrt(n)
(5625.1 - 5500) ÷ 226.1/sqrt(15) = 2.1429 = 2.143
Pvalue from test statistic :
The Pvalue obtained using the calculator at df = 15 - 1 = 14 is 0.025083
α = 0.05
Since ;
Pvalue < α
0.025083 < 0.05 ; Reject H0
The confidence interval :
Xbar ± Tcritical * s/sqrt(n)
Tcritical at 95% = 1.761 ;
margin of error = 1.761 * 226.1/sqrt(15) = 102.805
Lower boundary : (5625.1 - 102.805) = 5522.295
(5522.295 ; ∞)
The hypothesized mean does not occur within the constructed confidence boundary. HENCE, there is significant eveidbce to support the claim that the true mean life of a biomedical device is greater than 5500
What is the median for the following set of data?
5, 7, 9, 11, 13, 13
A. 10
B. 8
C. 9
D. 11
Answer:
Answer is 9
Step-by-step explanation:
I did the quiz also used a median calculator I don't think this will help but hopefully it dose or something
Jonathan took 33 pictures on the class trip and 67
pictures on field day. He gave 12 pictures to his friends.
He wants to put the remaining photos in a photo album.
Each page in the album can hold 6 pictures. How many
pages is he going to need so that all the remaining
pictures fit in the album?
Answer:
JONATHAN WILL NEED 14 PAGES.
Explanation:
33 + 67 = 100
100 - 12 = 88
88 ÷ 6 = 14.6666667
14.6666667 ⇒ 14
(Round 14.6666667 down to 14 because Johnathan does not have .6666667 of a page.)
Multiply two negative numbers to get 18
Answer:
Hey mate......
Step-by-step explanation:
This is ur answer......
(-9) × (-2) = 18Hope it helps!
mark me brainliest pls.....
Follow me! :)
Answer:
(-9*-2=18)
this * means multiply you probably already know that
Please help me figure out this math problem
!!WILL MARK BRAINLIEST!!
(08.01 MC)
Find the height of a square pyramid that has a volume
of 32 cubic feet and a base
length of 4 feet. (1 point)
1) 2 feet
2) 4 feet
3) 6 feet
4) 8 feet
Saved
Question 5 (1 point)
(OB.02 MC)
Answer:
4) 8
Step-by-step explanation:
Answer:
6 feet
Step-by-step explanation:
Formula: V=1/3Bh
V=1/3(4×4)6
V=1/3(16)6
V=1/3(96)
V=96÷3
V=32
(P.S.-The capital 'B' in the formula stands for the area of the square base)
Hope this helped :)
SOMEONE PLSS HELP ME, THIS IS DUE TODAY (I WILL GIVE BRAINLIEST)
A) less than -5
B) less than or equal to -5
C) greater than -5
D) greater than or equal to -5
Answer:
A
Step-by-step explanation:
Answer:
A) less than -5
Step-by-step explanation:
If it is lesser than -5, that means the line will be going to the left. This also means that the circle will be an open circle, not shaded.
Please help and stop with the links!
What is the factored form of this expression? 27n3+125n3
Answer:
27n³+125n³ = 152n³
5.337n)(5.337n)(5.337n)
Answer:
Step-by-step explanation: use math-way a chegg service
Dan has save 3200 cents from selling lemonade how many dollars does DAn have
Answer:
$32
Step-by-step explanation:
a dollar is 100 cents. so simply sake away the two zeros at the end.
Answer:
$32
Step-by-step explanation:
the answer is thirty two dollars because a dollar is 100 cents and 3200 ÷ 100 =32
What's 2+2 ?
First one to answer gets cash prize!
Answer:
4
(if this is a joke then the answer's 5, a fish, etc...)
Answer:
4
Step-by-step explanation:
Brainliest for both correct answers
Answer:
Question 1: A
Question 2: D
Step-by-step explanation:
I hope it helps
22yd 14 yd into square yards
Answer:
29.33
I thinks that right... lol :D
Forgive me if it wrong :(
Step-by-step explanation:
That is equivalent to 308 square yards. You can verify it on this website https://www.inchcalculator.com/square-yards-calculator/.
Max used 3 7/8 pounds of yellow potatoes and 2 5/8 pounds of sweet potatoes to make a potato salad. How many more pounds of yellow potatoes than sweet potatoes did Max use?
Step-by-step explanation:
[tex]\tt{}3 \frac{7}{8} - 2 \frac{5}{8} [/tex]
[tex]\tt{}(3 -2) + ( \frac{7}{8} - \frac{5}{8} )[/tex]
[tex]\tt{}1 + \frac{1}{4} [/tex]
[tex]\tt{}1 \frac{1}{4} [/tex]
[tex]\tt{} \frac{5}{4} [/tex]
[tex]\tt{}1.25[/tex]
5. chris is a school teacher who earns $32,000 for the 10-month school year. however, the salary is paid out in 12 monthly installments. how much does is the monthly paycheck? _________
Answer:
$2666.66Step-by-step explanation:
Yearly income = $32000Each installment is 1/12 of a yearly income:
$32000/12 = $2666.66Annual salary=32000
Monthly salary
32000/1216000/68000/3$2666.67_____ ÷ r × r = p
be fast :) easy point for who ever get it
Answer:
p
Step-by-step explanation:
lol question unclear
Answer:
p
Step-by-step explanation:
if you divide a number by a number and then multiply that same number by that number it is 1. so it is just __=p
Hope that helps :)
Can smart people solve this geometry problem with all work
Answer:
Step-by-step explanation:
An equilateral triangle has a side length of 10 units. What is it’s area?
Answer:
[tex]25\sqrt{3}=43.3\ \mathrm{units}[/tex]
Step-by-step explanation:
Area of a triangle = [tex]\frac{1}{2}ab\textrm{sin}(\theta)[/tex] where [tex]a[/tex] and [tex]b[/tex] are the sides of the triangle and [tex]\theta[/tex] is the angle between those two sides.
The side length are 10, and since its an equilateral triangle, the angle is 60 degrees. Thus, the area becomes [tex]\frac{1}{2}(10)(10)\textrm{sin}(60)=25\sqrt{3}=43.3\ \mathrm{units}[/tex]
I need help with solving this equation.
Answer:
66 m².
Step-by-step explanation:
From the question given above, the following data were obtained:
Diagonal 1 (d₁) = 11 m
Diagonal 2 (d₂) = 12 m
Area (A) =?
The area of a rhombus when the diagonals are given can be obtained as follow:
A = ½(d₁d₂)
A = ½ × (11 × 12)
A = ½ × 132
A = 66 m²
Thus, the area of the rhombus is 66 m²
1 4/8 - 7/8 what is the answer
Answer:
0.875
Step-by-step explanation:
have a good day/night
may i please have banilliest
thank u
sorry if wrong
Please help!!!!! ASAP it’s a checkpoint
Answer:
Option A. x = –5 ± √133 / –6
Step-by-step explanation:
0 = –3x² + 5x + 9
From the above equation the following data were obtained:
Coefficient of x² (a) = –3
Coefficient of x (b) = 5
Constant (c) = 9
Using formula method, the solution to the equation can be obtained as follow:
x = –b ± √(b² – 4ac) / 2a
a = –3
b = 5
c = 9
x = –5 ± √(5² – 4 × –3 × 9) / 2 × –3
x = –5 ± √(25 + 108) / –6
x = –5 ± √133 / –6
Thus, option A gives the correct answer to the question.
PLEASE HELP! I WILL GIVE 5 STARS, A THANKS, AND BRAINLIEST IF CORRECT!
A health food store has launched a new pack of vitamins for children. The store records the number of packs ordered by a random sample of 100 online customers and the number of packs ordered by a random sample of 100 walk-in customers.
Which of the following inferences can be drawn about the buying pattern of the online customers versus that of the walk-in customers?
A. Online customers buy an average of five packs compared with walk-in customers, who buy an average of two packs.
A. Online customers buy an average of six packs compared with walk-in customers, who buy an average of three packs.
A. Online customers buy an average of five packs compared with walk-in customers, who buy an average of three packs.
A. Online customers buy an average of six packs compared with walk-in customers, who buy an average of two packs.
Answer:
The answer would be C: Online customers buy an average of 4 packs compared with walk-in customers, who buy an average of 2 packs.
Step-by-step explanation:
6-4x+6(x-2) solve for x
Answer:
x=3
Step-by-step explanation:
6-4x+6(x-2)
6-4x+6x-12
-4x+6x=12-6
2x=6
x=3
A recent study by Allstate Insurance Co. finds that 82% of teenagers have used cell phones while driving In October 2010, Massachusetts enacted a law that forbids cell phone use by drivers under the age of 18. A policy analyst would like to determine whether the law has decreased the proportion of drivers under the age of 18 who use a cell phone.
complete question
study by Allstate Insurance Co. finds that 82% of teenagers have used cell phones while driving ( The Wall Street Journal , May 5, 2010). In October 2010, Massachusetts enacted a law that forbids cell phone use by drivers under the age of 18. A policy analyst would like to determine whether the law has decreased the proportion of drivers under the age of 18 who use a cell phone.a. State the null and the alternative hypotheses to test the policy analyst’s objective.
b. Suppose a sample of 200 drivers under the age of 18 results in 150 who still use a cell phone while driving. What is the value of the test statistic? What is the p-value?c. At α = 0.05 has the law been effective?
d. Repeat this exercise using the critical value approach with α = 0.05
Answer:
1. H0: p>=0.82
H1: p<0.82
2. z test statistic = -2.5767
3. the law has been effective
4. the null is rejected, the law has been effective
Step-by-step explanation:
1. hypothesis formulation
H0: p>= 0.82
H1: p< 0.82
2. p = 82% = 0.82
estimated p^ = x/n = 150/200 = 0.75
standard error calculation:
= √0.82(1-0.82)/200
= √0.82x0.18/200
= √0.02716615
Z test statistic calculation:
= 0.75-0.82/0.02716615
= -2.5767
3. this test is 1 tailed
the p-value using a p value calculator is = 0.004983
0.004983 < 0.05 so we Reject null and conclude that the law has been effective.
4. we Reject null at 0.05 if z is less than -1.645.
-2.5767<-1.645 so we Reject H0 and conclude law has been effective and there is a decrease in drivers under this age who use cell phones