Check arithmetic
t4-t3 t3-t2
25-16 16-9
=9 =7
sequence is not arithmetic bcoz t4-t3 is unequal to t4-t3
check geometric
t4÷t3 t3÷t2
25÷16 16÷9
=1.6 1.7
sequence is not geometric bcoz t4÷t3 is unequal to t3÷t2
neither
a man in a boat rowing from lighthouse whose height is 200m it takes 2 minutes to change the angle of elevation of 60 degree to 45 degree find speed of boat
Answer:
Step-by-step explanation:
I attached a picture below of what this situation looks like. As you can see, it is a right triangle problem. In order to solve for the speed of the boat, we first need to find out the difference between his distances when the angle is 60 and when it is 45. That's the same thing as finding x and y then subtracting. To find x:
[tex]sin60=\frac{200}x}[/tex] so
x = 231 meters (I rounded to the nearest whole numbers in this problem.
To find y:
[tex]sin45=\frac{200}{231+y}[/tex] so
[tex]y=\frac{200}{sin45}-231[/tex] and
y = 52.
The distance between the angles 60 and 45 as 52 meters, and it took him 2 minutes to travel that 52 meters. Assuming that his rate doesn't change, he can travel 52/2 meters per minute, or 26 meters per minute.
I really need help:(
Answer:
1. e
2. c
3. d
4. a
5. b
Step-by-step explanation:
-7w=-w+6
Please help what does this equal to
There are 2.54 centimeters in 1 inch. There are 100 centimeters in 1 meter. To the nearest inch, how many inches are in 2 meters?
Answer:
79 inches
Step-by-step explanation:
2 m * 100cm/m * 1 in/2.54cm = 78.7401574803 in
rounded
79 inches
When the number c is divided by seven,
the quotient is equal to six. Find the
value of c.
Answer:
42
Step-by-step explanation:
The equation is, c/7 = 6
c/7= 6
By multi[lying both sides with seven,
c = 6*7
c = 42
Hope this helps you
Please mark as brainliest
Thank You
Helpppppp meeeee!!!!!
if u answer all 4 questions i´ll give you Brainliest!!!
NO LINKS!!
help its in the picture
Answer:
maybe 90%?
Step-by-step explanation:
if im wrong im sorry
Answer:
90%
Step-by-step explanation:
[tex]\frac{18}{20} :\frac{y}{100}[/tex]
y × 20 = 18 × 100
20y = 1800
20y ÷ 20 = 1800 ÷ 20
y = 90
Express the following difference in the form of a + bi: (6 - 3i) - (-8 - 5i)
Can someone help me with this question please.
In a right angle triangle the side lengths are 4 and 2. Please find the hypotenuse. You can answer this in radical form OR give the answers in hundredth.
Answer:
4.47
Step-by-step explanation:
A squared + B squared = C squared
4*4=16 2*2=4 16+4=20
the square root of 20 is 4.472135955, rounded to the nearest hundreth is 4.47
What is the measure of arc WYZ?
------------
hint: find the measure of arc WYZ
------------
231
255
200
168
Step-by-step explanation:
We have a diameter and vertical angles so
231.
180+51=231
Answer:
231
Step-by-step explanation:
The measure of arc WX is 51
XZ is a straight angle so its arc measures 180 degrees
The measure of arc WYZ
WYZ= WX + XZ
= 51 + 180
231
helppp its in the picture
Answer:
$220
Step-by-step explanation:
$5.50*8= $44
$44*5= $220
Hope it helps!
Which graph best represents a
system of equations that has no
solution?
F
H
J
Answer:
There are no graphs on the question
Step-by-step explanation:
Keira's older cousin earns $700 a week. Recently he moved into his own apartment. What amount of debt do you think is reasonable for him to have? Why?
Answer:
10,000
Step-by-step explanation:
At a coffee shop, the first 100 customers'
orders were as follows.
Small
Medium
Large
Hot
5
48
22
8
12
5
Cold
What is the probability that a customer ordered
a cold drink given that he or she ordered a large?
Rounded to the nearest percent, [? ]%
The probability of a customer ordering a cold drink given that they ordered a large is 0.1852 or about 18.52%.
Let us find the individual probabilities.
P(Large | Cold) = 5/25 = 0.2 (out of 25 cold drinks, 5 were large)
P(Cold) = (8+12+5)/100 = 0.25 (out of 100 orders, 25 were cold)
P(Large) = (22+5)/100 = 0.27 (out of 100 orders, 27 were large)
Now we can plug these values into Bayes' theorem:
P(Cold | Large) = 0.2 × 0.25 / 0.27
P(Cold | Large) = 0.1852
Therefore, the probability of a customer ordering a cold drink given that they ordered a large is 0.1852 or about 18.52%.
To learn more on probability click:
https://brainly.com/question/11234923
#SPJ7
What is the length of RS
O -8
O -4
O 4
O 8
The dot plot represents a sampling of ACT scores.
which box plot represents the dot plot data?
Answer:
The first box plot represents the dot plot data.
In an automobile factory, 0.06 percent of all automobiles produced are defective. On the average, there will be 3 defective automobiles out of how many produced?
Answer:
5000
Step-by-step explanation:
The matrix below represents the number of minutes four friends spend driving to each others’ homes each week. A row label represents the friend driving and a column label represents the friend being visited.
How many minutes does friend #1 spend driving to visit friend #3?
0
5
23
45
Answer:
23 minutes
Step-by-step explanation:
Friend one is 0. While friend 3 is 23. Subtract: 23-0=23.
Hope this helps!
Answer:
45
Step-by-step explanation:
Can someone help me? It's urgent and thank you!
Answer:
[tex]\frac{1}{3(x-2)}[/tex]
Step-by-step explanation:
Hi there!
We need to multiply the fractions:
[tex]\frac{x+3}{12x}[/tex]×[tex]\frac{4x}{x^{2}+x-6}[/tex]
Before we multiply, we can cancel out and factor the polynomials to make multiplying easier
First, we can factor x²+x-6
1 (in front of +x) is the sum of two numbers and -6 is the product of those numbers
Those numbers are -2 and 3
so when we factor, we get:
(x-2)(x+3)
here are the fractions so far:
[tex]\frac{x+3}{12x}[/tex]×[tex]\frac{4x}{(x+3)(x-2)}[/tex]
we can cancel out x+3 on both fractions
[tex]\frac{1}{12x}[/tex]×[tex]\frac{4x}{x-2}[/tex]
we can also cancel out 4x from both fractions
[tex]\frac{1}{3}[/tex]×[tex]\frac{1}{x-2}[/tex]
now multiply the fractions together
[tex]\frac{1}{3(x-2)}[/tex]
So the first option is your answer
Hope this helps! :)
Please help 7th grade math
Answer:
d = 67.5
e = 22.5
Step-by-step explanation:
d + e = 90
d = 3e
Therefore, we can simply divide 90 by 4, which gives us 22.5, and also tells us what e equals. Then, multiply that by 3 to get d.
Hope that this helps!
Calculando a expressão (-2)² + (+5)², obtemos qual resultado?
a) + 29
b) + 21
c) + 14
d) + 6
Answer:
a
Step-by-step explanation:
(-2)² + (+5)² = (-2)*(-2) + 5 * 5
= 4 + 25
= +29
A start-up company is about to market a new computer printer. It decides to gamble by running commercials during the Super Bowl. The company hopes that name recognition will be worththe high cost of the ads. The goal of the company is that over 40% of the public recognize its brand name and associate it with computer equipment. The day after the game, a pollster contacts 420 randomly chosen adults and finds that 181 of them know thatthis company manufactures printers. Would you recommend that the company continue to advertise during Super Bowls
Reject the null hypothesis and come to the conclusion that there is enough evidence to imply that the percentage of adults who are familiar with the company's name is much more than 40%.
What is the null hypothesis?In order to evaluate whether the percentage of individuals who recognize the company's brand name differs considerably from the company's target of 40%, we must conduct a hypothesis test.
Let p represent the percentage of adults who can name the company's brand. The corporation hopes that more than 40% of adults will recognize its brand name, hence the alternative hypothesis is that p > 0.4.
A one-sample z-test can be used to examine this claim. The test statistic is determined as follows:
[tex]z = \dfrac{(p' - p)} { \sqrt{\dfrac{(p (1 - p)} { n}}}[/tex]
Where p is the null hypothesis value, n is the sample size, and p is the sample proportion.
In this instance, n = 420, p = 0.4, and p' = 181/420 = 0.431. With these values entered into the formula, we obtain:
[tex]z = \dfrac{(0.431 - 0.4)} { \sqrt{(0.4 \times \dfrac{0.6} { 420} }}= 1.65[/tex]
The likelihood of obtaining a z-value of 1.65 or higher is 0.0495 using a basic normal distribution table or calculator (assuming the null hypothesis is true). This is the test's p-value.
When the p-value is less than 0.05, which is considered to be significant (and corresponds to a 95% confidence level), we
Hence, based on this sample of 420 adults, we would advise the company to keep running Super Bowl advertisements as it seems to be succeeding in raising brand recognition among the general public.
To know more about the null hypothesis follow
https://brainly.com/question/15980493
#SPJ6
Which relation is a function?
o {(4,0),(4,1),(4,2), (4,3)}
o {(7,4), (8,8), (10,8), (10,10)}
o {(-1,3), (-2,6),(0,0),(-2,-2)}
o {(2,2), (1,1),(0,0), (-2,-2)}
Given:
Different relations in the options.
To find:
The relation which is a function.
Solution:
A relation is a function if there exist unique output for each input value. In other words, there exist only one y-value for each x value.
In option A, [tex]y=0,1, 2, 3[/tex] for [tex]x=4[/tex]. So, this relation is not a function.
In option B, [tex]y=8, 10[/tex] for [tex]x=10[/tex]. So, this relation is not a function.
In option C, [tex]y=6, -2[/tex] for [tex]x=-2[/tex]. So, this relation is not a function.
In option D, all x-values are different. So, their exist unique output for each input value. It means this relation is a function.
Therefore, the correct option is D.
The number of Roberto’s baseball cards is ¾ the number of David’s cards If Roberto gives ½ of his cards to David, what will be the ratio of Roberto’s cards to David’s cards? please help me. I need it to step by step equations!!!!
Answer:
1/4, 0.25
Step-by-step explanation:
Answer:
3/11
Step-by-step explanation:
Let Roberto's cards be x.
Let David's cards be y
x = (3/4) y
Roberto gives half his cards away which is 1/2*(3/4) = 3/8
David's new amount after the gift = 1/2(3/4)y + y = 3/8y+y=3y/8+8y/8 = 11y/8
So the ratio is Roberto / David = (3/8) // (11/8)
Roberto to David = 3/8 // 11.8 which you now invert and multiply the denominator
Roberto to David = 3/8 * 8/11 = 3/11
Done on my cell.
La inversa del coseno es
a. El arcoseno
b. El arcocoseno
c. La secante
Answer:
Step-by-step explanation:
LavLa inversa del coseno es
a. El arcoseno
b. El arcocoseno
c. La secante
La inversa del coseno es
a. El arcoseno
b. El arcocoseno
c. La secante
La inversa del coseno es
a. El arcoseno
b. El arcocoseno
c. La secante
inversa del coseno es
a. El arcoseno
b. El arcocoseno
c. La secante
Help me I am stuck on this.
Answer:
It is not
Step-by-step explanation:
A bowl contained 19.4 grams of salt. Then, Greg poured in another 56.24 grams. How much salt does the bowl contain now?
Answer:
75.64
Step-by-step explanation:
add them
Answer:
75.64
Step-by-step explanation:
Add the two amounts together to determine the amount of salt in the bowl
19.4+56.24
Make sure to line up the decimals
19.4
56.24
-----------
75.64
Convert 21/44 to decimal.
Answer:
0.4772
Step-by-step explanation:
Convert the fraction to a decimal by dividing the numerator by the denominator.
Answer:
[tex]\huge\boxed{Answer\hookleftarrow}[/tex]
⎇ The answer of [tex] \frac{21}{44} [/tex] is [tex]\large\bold{0.4772....}[/tex]
Refer to the attachment for the steps.
____________________
ʰᵒᵖᵉ ⁱᵗ ʰᵉˡᵖˢ
# ꧁❣ RainbowSalt2²2² ࿐
I’m confused.. please help me
Answer:
It's [tex]3x^4+22x^3+31x^2-6[/tex]
Step-by-step explanation:
Area is L times width
LW=H
and the length is [tex]3x^2+4x-1[/tex] times the width [tex]x^2+6x+3[/tex]
basically you multiply yhem togetheer and combine like terms and voila
The answer is 3x^4 + 24x^2 - 6
explanation:
A = l × w
= (3x^2+4x-2)(x^2+6x+3)
=(3x × x) + (4x×6x) + (-2×3)
= 3x^2 + 24x^2 - 6
