Answer:
B = (A/(2h)) - a
Step-by-step explanation:
A = h(a+b)2
divide both sides of the equation by 2h
A/(2h) = a+b
subtract a from both sides
(A/(2h)) -a = b
CAN SOMBODY PLEASE HELP :( ? ILL GIVE BRAINLIEST!! *EXTRA POINTS* !! HELP MEEE ASAP.
Answer:
juan should be 32
paul=8
Samantha= 16
juan=32
Please help, "What if you magnified the image of a cluster fly (9 millimeters) by 9*10 exponent 3? What would the length appear to be?" Please hElP
Answer:
9000
Step-by-step explanation:
This is written in scientific notation. When you have a positive exponent (x³), You move the decimal point to the right as many times as the exponent says. Since the exponent is +3, move the decimal to the right 3 spaces:
[tex]9.0(0)\\\\90.0(1)\\\\900.0(2)\\\\9000.0(3)[/tex]
So:
[tex]9*10^3=9000[/tex]
:Done
*Magnifying means that the image will be bigger. So, the new number has to be greater than 9. Since 9000>9, this is true.
Simplify the expression: (2n + 3)(–2)
Answer:
(2n+3)(−2)
=(2n+3)(−2)
=(2n)(−2)+(3)(−2)
=−4n−6
Use the Rational Zero Theorem to list all possible rational zeros for the given function.
f(x) = 9x^4 - x^3 + 4x^2 - 5x - 6.
Which of the following is the complete list of possible zeros of the given function?
a. ±1, ±3, ±2, ±1/3, ±2/3
b. ±1, ±3, ±2/3, ±1/9, ±2/9
c. ±1, ±3, ±2, ±6, ±1/3, ±2/3, ±1/9, ±2/9
d. The function has no rational zeros.
The following data represent the pulse rates (beats per minute) of nine students enrolled in a statistics course. Treat the nine students as a population. Complete parts (a) through (c). Student Pulse?
Perpectual Bempah 64?
Megan Brooks 77?
Jeff Honeycutt 89?
Clarice Jefferson 69?
Crystal Kurtenbach 89?
Janette Lantka 65?
Kevin McCarthy 88?
Tammy Ohm 69?
Kathy Wojdya 87?
A) Determine the population mean pulse. The population mean pulse is approximately nothing beats per minute.
B) Determine the sample mean pulse of the following two simple random samples of size 3. Sample 1: StartSet Janette, Clarice, Megan EndSet, Sample 2: StartSet Perpectual, Clarice, Megan EndSet The mean pulse of sample 1 is approximately nothing beats per minute. The mean pulse of sample 2, is approximately nothing beats per minute.
C) Determine if the means of samples 1 and 2 overestimate, underestimate, or are equal to the population mean. The mean pulse rate of sample 1 (underestimates/ is equal to/ overestimates) the population mean. The mean pulse rate of sample 2 (is equal to/ underestimates/ or overestimates) the population mean.
Answer:
abcdefg
Step-by-step explanation:
A batch of 400 containers for frozen orange juice contains 5 that are defective. Two are selected, at random, without replacement from the batch. 26. What is the probability that the second one selected is defective given that the first one was defective? HINT: Note that you are only calculating a probability for the second draw conditional on what happened in the first draw. 27. What is the probability that both are acceptable? 28. If three are selected without replacement, what is the probability that all three are defective?
Answer:
0.0100250
0.0001566
0.0000009445555
Step-by-step explanation:
Given the following :
Total number of containers = 400
Number of defective oranges = 5
2 are randomly selected without replacement :
A.) What is the probability that the second one selected is defective given that the first one was defective?
Since selection is without replacement and given that the first pick is defective ; number of defective oranges left = 4 ; total oranges left in container = (400 - 1) = 399
Hence,
Probability = (required outcome / Total possible outcomes)
P(2nd defective given 1st is defective) = 4 / 399
27. What is the probability that both are acceptable?
This means probability that both picks aren't defective.
Ist pick = 1 - P(defective) = (1 - (395/400) = 0.0125
2nd pick = 1 - P(defective) 1 - (394/399) = 0.0125313
.Hence, 0.0125 × 0.0125313 = 0.0001566
28. If three are selected without replacement, what is the probability that all three are defective?
1st pick = 5 / 400 = 0.0125
2nd pick = 4 / 399 = 0.0100250
3rd pick = 3 / 398 = 0.0075376
Hence, (0.0125 × 0.0100250 × 0.0075376) = 0.0000009445555
Write the following numbers in Scientific Notation.
1. The current United States national debt is about $26.5 trillion.
2. The speed of light is about 299,000,000 meters/second.
3. The diameter of an atom is approximately 0.0000000001 meters.
4. Suppose you want to download a file that is 2.6 gigabytes. If you have an average download speed of 30 megabytes/second, how long will it take to download the file?
Answer:
29.9 to the 6th power for number 2
0.1 to the -9 th power
i think lol
its better than ?
Step-by-step explanation:
PLSSSS HELPP ASSPPPP!!!!
A large pizza is $18 and a small pizza is $12. Each topping is.50.
How my would it cost for a large pizza with 5 toppings> *
Answer:
$20.50
Step-by-step explanation:
The pizza itself is $18. If you wanted 5 toppings you would do .50 multiplied by 5. That would give you a total of $2.50 for the 5 toppings. 18 plus 2.50 is 20.50.
Answer:
A large pizza with 5 toppings will be $20.50
A small pizza with 5 toppings will be $14.50
5 toppings would cost $2.50
Step-by-step explanation:
.50x5=2.50
18.00x2.50=20.50
12.00+2.50=14.50
I hoped this helped
which function is the inverse of f(x) equals negative 5X -4
Answer:
f inverse x = -x+4/5
Step-by-step explanation:
Answer:
f^-1(x) = -1/5 x - 4/5
Step-by-step explanation:
f(x) = -5x - 4
Replace f(x) with y.
y = -5x - 4
Switch x and y.
x = -5y - 4
Solve for y.
5y = -x - 4
y = -1/5 x - 4/5
Replace y with f^-1(x).
f^-1(x) = -1/5 x - 4/5
in the standard (x,y) coordinate plane, what is the slope of the line 4x+7y=9?
Answer: -4/7
Step-by-step explanation:
To find the slope, let's change the equation to slope-intercept form.
[tex]4x+7y=9[/tex] [subtract both sides by 4x]
[tex]7y=-4x+9[/tex] [divide both sides by 7]
[tex]y=-\frac{4}{7}x+\frac{9}{7}[/tex]
Now, we know the slope is -4/7.
I'LL GIVE YOU BRAINLIEST, YOU LITERALLY CAN HAVE ALL MY POINTS Under a dilation, a square with side lengths 14 meters is transformed to a square with side lengths 2 meters. What is the scale factor of the dilation? Enter your answer as a simplified fraction by filling in the boxes.
Divide the new length by the original length:
Scale factor = 2/14
Simplified = 1/7
Just doing this for the points.
Its 1/7 simplified, I took the test.
Choose the correlation coefficient that would best fit the data in the scatter plot below."
600
500 -
Max distance to read sign
400
300 -
15
25
35
45
75
85
55 65
Driver Age (years)
41
78
98
no correlation
-78
35
Landon babysits and works part time at the water park over the summer. One week, he babysat for 3 hours and worked at the water park for 10 hours and made $109. The next week he babysat for 8 hours and worked at the water park for 12 hours and made $177. How much does Landon make per hour at each job?
Answer:
Babysitting =$8.7
Water park =$8.7
Step-by-step explanation:
In 1 week
Babysitting =3 hrs
Water park = 10 hrs
Total =$ 109
In week 2
Babysitting = 8 hrs
Water park = 12 hrs
Total= $ 177
Both weeks
Babysitting =11 hrs
Water park =22 hrs
Total=$286
33 hrs = $ 286
11 hrs =?
11×286÷33=$95.3
33 hrs = $286
22 hrs = ?
22×286÷33=190.7
Babysitting she got $95.3 in both weeks
Water park she got $190.7(rounded offf)in both weeks
11 hrs = $95.3
1 hr = ?
1×95.3÷11=8.7 (rounded off )
22 hrs = $ 190.7
1 hr = ?
1×190.7÷22= 8.7( rounded off)
2a + 4c = 38.00 solve for c
Answer:
c = 19/2 - 1/2a
Step-by-step explanation:
Step 1: Write equation
2a + 4c = 38.00
Step 2: Solve for c
Subtract 2a on both sides: 4c = 38 - 2a
Divide both sides by 4: c = 19/2 - 1/2a
Step-by-step explanation:
2 (a+2c)=38
a+2c=19
c=(19-a)/2
Standard Form When a polynomial is written in order from the ________________ exponent to the ________________exponent
Answer:
largest
Smallest
Step-by-step explanation:
if x-2 is a factor of x^2n+1
Answer:
No the factor of x^2 + 1 = n x^2 + 1
Step-by-step explanation:
What are prime numbers ? And a list of examples ?
Answer:
the number which is divisible only by itself and 1 is called prime number. For example; 2,3, 5, 7, 11 and others.
1. The interior angles of a triangle have measures of 55°, 25°, and x
What is x?
help? 5/12 + 5/8
(spam cause i need 20 characters)
Answer:
1 1/24
Step-by-step explanation:
5/12 + 5/8
We need a common denominator of 24
Convert the first number to have a denominator of 24
5/12 *2/2 = 10/24
Convert the second number to have a denominator of 24
5/8*3/3 = 15/24
Add the two converted numbers together
10/24 + 15/24
25/24
Change from an improper fraction to a mixed number
24/24 + 1/24
1 1/24
Answer:
25/24
Step-by-step explanation:
5/12 * 1 = 5/12
1 = 2/2
5/12 * 1 = (5/12) * (2/2) = (5*2)/(12*2) = 10/24
3/3 = 1
5/8 * 1 = (5/8) * (3/3) = (5*3)/(8*3) = 15/24
then:
(5/12) + (5/8) = (10/24) + (15/24) = (10+15) / 24 = 25/24
Write an equation of the line with a slope of m= 2 and passing through the
points (-2,3).
Answer:
Step-by-step explanation:
y - 3 = 2(x + 2)
y - 3 = 2x + 4
y = 2x + 7
Your math test scores are 76, 85, 92, and 63. What is the lowest score you can earn on the next test and still achieve an average of at least 75?
Hey there! I'm happy to help!
We have 5 test scores that give us an average of at least 75.
76, 85, 92, 63, x
We add these all up and divide by 5 to get 75.
Let's go backwards to find x.
We multiply by 5.
75(5)=375
We subtract all of the numbers except for x.
375-76-85-92-63=59
So, you need to earn at least 59 on the next test to achieve an average of at least 75.
Have a wonderful day! :D
9. If LK MK, LK = 7x - 10, KN = x + 3, MN = 9x - 1), and KJ = 28, find L.
Answer:LJ = 18 + 28 = 46
Step-by-step explanation:
Suppose J, K, L, M, N are points on the same line.
MK = MN + (-KN) = MN - KN = 9x - 11 - x - 3 = 8x - 14
Since LK = MK and LK = 7x - 10, then
7x - 10 = 8x - 14
8x - 7x = -10 + 14
x = 4
LJ = MK + KJ
MK = LK = 7x - 10 = 7(4) - 10 = 28 - 10 = 18
LJ = 18 + 28 = 46
Classify the following triangle as acute, obtuse, or right.
30°
249
126
A. Acute
B. Obtuse
C. Right
O D. None of these
Answer:obtuse
Step-by-step explanation:
James had 42 dollars. He bought his sister a gift that costs x dollars. How much money does james have now, in terms of x
Answer:
42-x = James' money now
Step-by-step explanation:
James has "42-x dollars" after purchasing a gift for his sister.
Expression for money left to James to be determine if he spend x dollars from $42.
Arithmetic is branch of math that teach how a word statement can be transform to mathematical expression.
Here, James spend x dollars to bought his sister a gift from $42.
Now, James has only 42-x dollars left in his pocket.
Thus, James has '42-x' dollars after purchasing a gift for his sister.
Learn more about arithmetic here:
https://brainly.com/question/24873057
#SPJ2
(01.02 MC)Which statement best explains the value of 18 − (−5)? The additive inverse of −5 is +5, so 18 − (−5) = 23. The additive inverse of −5 is −5, so 18 − (−5) = 23. The additive inverse of −5 is −5, so 18 − (−5) = 13. The additive inverse of −5 is +5, so 18 − (−5) = 13.
Hey there! I'm happy to help!
The additive inverse of a number is one that has its sign switched. If you put a - before a number, the sign switches. We put a - before -5, so its sign switches. -5's additive inverse is 5, so this 18+5, giving us 23.
The additive inverse of -5 is +5, so 18 - (-5)=23.
Have a wonderful day! :D
Select the correct answer.
Which expression is equivalent to the given expression?
(3m2m)
mn 4
A
27 m5
n
9m5
n
B.
C. 27m4n
D.
9m4n
Answer:
D 9m 4m because 9 divided by 2 is 3 and 4 divided by 2 is 2 and that's us you answer.
Alondra deposits 1/2 of the money she earns from working at her uncle’s mechanic shop and 3/4 of her baby-sitting money into her savings account. In one month she earned $250 at her uncle’s shop and received $80 for baby-sitting. How much did she deposit in her savings account that month? Group of answer choices need answer quick
Answer:
$185
Step-by-step explanation:
First, find the amount that she deposited from her uncle's shop:
250(1/2)
= 125
Then, find how much she deposited from baby sitting:
80(3/4)
= 60
Add these 2 values up:
125 + 60
= 185
So, she deposited $185 that month
This applet illustrates 95% confidence intervals for samples from a normal distribution with known variance. (a) When taking 100 samples of size 30 or greater from a population, exactly 95 of them will create a confidence interval that contains the true population mean. True False (b) Which statement is the correct interpretation of the confidence interval in this illustration?
Answer:
Step-by-step explanation:
When taking 100 samples of size 30 or greater from a population, exactly 95 of them will create a confidence interval that contains the true population mean. True or false?
This statement is false, or better still, ambiguous. 100 samples of size 30 (or greater) each, means 300 total and it can't be just 95 of them that will contain the true population mean.
Which operation should you perform last in the expression 3^2 + 2?
Answer:
8
Step-by-step explanation:
Convert 0.4 to a percent
Answer:
0.4=40%
Step-by-step explanation:
hope this helps!!!
