Answer:
Step-by-step explanation:
1. Match the letters a, b, and c with their statement.
a = "We go to school on Memorial Day"
b = "Memorial Day is a holiday"
c = "We work on Memorial Day"
2. Underline the key words ( that have symbols)
We work on Memorial Day if and only if we go to school on Memorial Day.
We work on Memorial Day or Memorial Day is a holiday.
If we do not go to school on Memorial Day, then we work on Memorial Day.
Memorial Day is a holiday and we do not go to school on Memorial Day.
If we go to school on Memorial Day, then we work on Memorial Day.
3. Use the symbols and the letters.
We work on Memorial Day if and only if we go to school on Memorial Day.
c ⇔ a
We work on Memorial Day or Memorial Day is a holiday.
c V b
If we do not go to school on Memorial Day, then we work on Memorial Day.
~a ⇒ c
Memorial Day is a holiday and we do not go to school on Memorial Day.
b ∧ ~a
If we go to school on Memorial Day, then we work on Memorial Day.
a ⇒ c
Can you solve this using l'hospital?
Answer:
Ooh my god sooo difficult
Sonia's check at Aubrey's Kitchen is $14.25. In order to leave a 10% tip, how much should she pay? Round to the nearest cent.
Answer:
Nearest cent- $1.43
Step-by-step explanation:
14.25x0.10=1.425
Question 3(Multiple Choice Worth 5 points)
(04.05)Margie calculated that she would spend $175 on school supplies this year. She actually spent $97.50 on school supplies. What is Margie’s percent of error?
77.3%
79.5%
44.2%
4.4%
Answer:
79.5%
Step-by-step explanation:
[tex]\frac{175-97.5}{97.5} =0.795[/tex]
Question 10 Express 40 as a product of prime factors
Answer:
2 x 2 x 2 x 5
Step-by-step explanation:
The first few prime numbers: {2, 3, 5, 7, 11, 13, 17, 19}
One way to start is to divide by the first prime until you can't do that any more, then try the next prime and so on until all the numbers in your list are prime.
40 = 2(20) divide 20 by 2 again
40 = 2(2)(10) divide 10 by 2 again
40 = 2(2)(2)(5) stop--all factors are prime.
1/4 + 1/8 = ?
Add. Simplify your answer.
Answer:
3/8
Step-by-step explanation:
1/4 = 2/8
1/8 + 2/8= 3/8
3/8 is simplified
how many students scored already 76 on the test.
Answer:
760
Step-by-step explanation:
Make me brainliest
please
9 students scored a 76 on the test :)
One of the legs of a right triangle measures 19cm and the other leg measures 6
cm. Find the measure of the hypotenuse. If necessary, round to the nearest
tenth.
9514 1404 393
Answer:
19.9 cm
Step-by-step explanation:
The Pythagorean theorem tells you the square of the hypotenuse is the sum of the squares of the legs.
h² = 19² +6² = 361 +36 = 397
h = √397 ≈ 19.9
The measure of the hypotenuse is about 19.9 cm.
Can you do number 65 a and b? Ill give you brainliest
Answer:
a is 10 and b is 100
Step-by-step explanation:
(a)- if you take 10 to the tenth power you'll get 100
(b)- if you take 100 to the 100th power you'll get 10,000
Multiply and fully simplify please show work please
STEP1:
Simplify
[tex] \frac{x + 4}{x - 2} \\ [/tex]
Equation at the end of step1:
[tex] \frac{ ((x {}^{2} ) - 4) }{x} \times \frac{(x + 4)}{x - 2} \\ [/tex]
Factoring: x2 - 4
Theory : A difference of two perfect squares, A2 - B2 can be factored into (A+B) • (A-B)
Proof : (A+B) • (A-B) =
A² - AB + BA - B² =
A² - AB + AB - B² =
A² - B²
Note : AB = BA is the commutative property of multiplication.
Note : - AB + AB equals zero and is therefore eliminated from the expression.
Check : 4 is the square of 2
Check : x2 is the square of x1
Factorization is : (x + 2) • (x - 2)
Polynomial Long Division :
2.2 Polynomial Long Division
Dividing : x + 2
("Dividend")
By : x ("Divisor")
dividend x + 2
- divisor * x⁰ x
remainder 2
Quotient : 1
Remainder : 2
Equation at the end of step 2:
[tex] \frac{(x + 2) \times (x - 2)}{x} \times \frac{(x + 4)}{x - 2} \\ [/tex]
Cancel out (x-2) which appears on both sides of the fraction line.
Final result :
[tex]⇒ \frac{(x + 2) \times (x + 4)}{x} \\ [/tex]
Sylvia’s burgers cooks it’s burgers either well done or medium. The restraint served 52 burgers last night, 25% of which were well done. How many well-done burgers did the restaurant serve?
Answer:
Well it’s asking to find 25 percent of 52
So in order to find this you can multiply 52 by 0.25
When done you should get 13
13 well done burgers were served
In the middle school debate club, 30% of the members are in sixth grade. If there
are 12 sixth graders in the debate club, how many total members are there in 100%?
Answer:
40
Step-by-step explanation:
Answer:
40
30%= 12 sixth graders
10%= 12/30×10%
=4
4 ×7(7 as in 70% percent)
=28
28+12=40
Plz solve 8b .. i am confused. I will mark you as brainly
Answer:
(See attached file)
A camera has a listed price of $844.99 before tax. If the sales tax rate is 6.75%, find the total cost of the camera with sales tax included Round your answer to the nearest cent, as necessary.
Answer:
$597.78
Step-by-step explanation:
$559.98 * 6.75% = 37.798 = 37.80
$559.98 + 37.80 =$597.78
Please help :(
5. In a simple random sample of 120 women and 150 men from
a population of 150,000, 25% of the women and 37% of the men
are smokers. Suppose you are interested in comparing the
proportion of smokers by sex, do we accept or reject the null
hypothesis of assuming the smoking proportions of women and
men are the same with a .15?
Using the z-distribution, it is found that since the absolute value of the test statistic is greater than the critical value, the null hypothesis is rejected.
At the null hypothesis, we test if the proportions are the same, that is, their subtraction is 0, hence:
[tex]H_0: p_1 - p_2 = 0[/tex]
At the alternative hypothesis, it is tested if they are different, that is, their subtraction is not 0, hence:
[tex]H_1: p_1 - p_2 \neq 0[/tex]
The proportions and their respective standard errors are given by:
[tex]p_1 = 0.25, s_1 = \sqrt{\frac{0.25(0.75)}{120}} = 0.0395[/tex]
[tex]p_2 = 0.37, s_2 = \sqrt{\frac{0.37(0.63)}{150}} = 0.0394[/tex]
For the distribution of the difference, the mean and the standard error are given by:
[tex]\overline{p} = p_2 - p_1 = 0.37 - 0.25 = 0.12[/tex]
[tex]s = \sqrt{s_1^2 + s_2^2} = \sqrt{0.0395^2 + 0.0394^2} = 0.0558[/tex]
The test statistic is given by:
[tex]z = \frac{\overline{p} - p}{s}[/tex]
In which [tex]p = 0[/tex] is the value tested at the null hypothesis.
Hence:
[tex]z = \frac{\overline{p} - p}{s}[/tex]
[tex]z = \frac{0.12 - 0}{0.0558}[/tex]
[tex]z = 2.15[/tex]
The critical value for a two-tailed test, as we are testing if two values are different, with a significance level of 0.15 is [tex]|z^{\ast}| = 1.4395[/tex].
Since the absolute value of the test statistic is greater than the critical value, the null hypothesis is rejected.
A similar problem is given at https://brainly.com/question/25676691
A machine prints 560 posters in 40 minutes. How many posters can it print in 13 minutes?
Answer:182
Step-by-step explanation:
In 2010, the population of a city was 58,000. From 2010 to 2015, the population grew
by 6.9%. From 2015 to 2020, it fell by 5.7%. To the nearest 100 people, what was the
population in 2020?
Answer:
y-0=8
Step-by-step explanation:
um
The maximum weight that a circular column can hold is inversely proportional to the square of its height. If an 8 foot column can hold 2 tons, find how much weight a 10 foot column can hold.
Answer: 3 tons
Step-by-step explanation: first I figured out how much 2 tons was which is 4000 pounds and then I divided 4000 by 8 which told me that each foot can hold 500 pounds So then I just did 500×10 which is 5000 pounds which is 3 tons
If an 8-foot column can hold 2 tons, then a 10-foot column can hold 1.28 tons.
What is proportion?Proportions are of two types one is the direct proportion in which if one quantity is increased by a constant k the other quantity will also be increased by the same constant k and vice versa.
In the case of inverse proportion if one quantity is increased by a constant k the quantity will decrease by the same constant k and vice versa.
Given, The maximum weight that a circular column can hold is inversely proportional to the square of its height.
∴ w ∝ 1/h² or w = k(1/h²).
An 8-foot column can hold 2 tons which is,
2 = k(1/8²).
2 = k(1/64).
k = 128.
Now, 10 feet column can hold,
w = 128(1/10²).
w = 128/100.
w = 1.28 tons.
learn more about proportion here :
https://brainly.com/question/7096655
#SPJ5
Pre college need help
Answer
-5x+7y = 0
Explanation
Answer:
[tex] - 5x + 7y = 0 \\ \\ is \: the \: answer[/tex]
ding ding ding help is now!
Answer:
I believe the missing number is 65
Step-by-step explanation:
Answer: 65
Step-by-step explanation: 20 times 5 is 100. 13 times 5 is 65. 65/100
2) John made $55,000 in 2007, but his income decreased by 17% in 2008 due to the recession. What was his 2008
income?
=======================================================
Explanation:
A decrease of 17% means that he made 100% - 17% = 83% of what he did last year.
83% = 83/100 = 0.83
83% of $55,000 = 0.83*55000 = 45,650 dollars
Drowsiness increases the likelihood of a crash by how many times
Answer:
1000 thousand timesgdfggff
Step-by-step explanation:
hi0
Please help me if you can
Answer:
d,e,f
Step-by-step explanation:
Answer:
Linear:
A, C, F
Not Linear:
B, D, E
F
к
ча
ц°
Н
1
J
how are they similar?
Answer:
letters temperature/angle and the number 1? is this something my brain hasnt figured out yet??
Step-by-step explanation:
what
Please give me width and height
Answer:
i believe the answer is 341 hope this helps
what decimal number is halfway between 7 and 8?
What is the perimeter?
Answer:
68
Step-by-step explanation:
All sides of a rhombus are equal.
Find the missing value in the ratio table.
Answer:
5
Step-by-step explanation:
10/2=5
6/3=2
20/10=2
question is attached above
You paint 13 of a wall in 14 hour. At that rate, how long will it take you to paint one wall?
Step-by-step explanation:
Wall painted = 13
Time = 14 hour
Av = 14/13 hour
I take 14/13 hour to paint one wall
Answer:
It will actually be 3/4 hours
Step-by-step explanation:
Help me (;_;)I’m
Offering a good amount of points and I’ll mark you brainliest too
Answer:
hope this helps :)
Step-by-step explanation:
A. 485
B. 525
C. 700
D. 750