Answer:
1 ) y = 8 / x
2 ) 3 + 2x
Step-by-step explanation:
1 )
One number = x
Let the other number be y.
The product of two numbers is 8,
( x ) ( y ) = 8
xy = 8
y = 8 / x
Expression for the other number is,
y = 8 / x
2 )
JoJo = x years old
Fiifi = ( 3 + x ) years old
Expression for the sum of their ages
= 3 + x + x
= 3 + 2x
evaluate the inequality
6x-2y+8 when x=3 and y=2
show your work
Answer:
22
Step-by-step explanation:
6(3)-2(2)+8
18-4+8
14+8
22
Answer:
22
Step-by-step explanation:
6x-2y+8
(6 • 3) - (2 • 2) + 8
18 - 4 + 8
22
(i think)
Tell whether each number is rational or irrational.
3.525252...
Rational
Irrational
Answer:
rational
Step-by-step explanation:
Please help me this is on khan academy.
Mr. Mole's burrow lies 5 55 meters below the ground. He started digging his way deeper into the ground, descending 3 33 meters each minute. Graph the relationship between Mr. Mole's elevation relative to the ground (in meters) and time (in minutes).
At the 95% confidence level, the margin of error for this survey, expressed as a proportion, is approximately 0.0288.
To calculate the margin of error for a survey expressed as a proportion, we need to use the formula:
Margin of Error = Critical Value [tex]\times[/tex] Standard Error
First, let's find the critical value.
For a 95% confidence level, we can refer to the standard normal distribution (Z-distribution) and find the z-value associated with a 95% confidence level.
The critical value for a 95% confidence level is approximately 1.96.
Next, we need to calculate the standard error.
The standard error for a proportion can be computed using the formula:
Standard Error [tex]= \sqrt{((p \times (1 - p)) / n)}[/tex]
Where:
p = proportion of respondents in favor of the plan
n = sample size
In this case, the proportion in favor of the plan is 37/185 = 0.2 (rounded to the nearest thousandth).
The sample size is 185.
Now we can calculate the standard error:
Standard Error [tex]= \sqrt{((0.2 \times (1 - 0.2)) / 185)}[/tex]
Simplifying further:
Standard Error ≈ [tex]\sqrt{((0.04) / 185)}[/tex]
Standard Error ≈ [tex]\sqrt{(0.0002162)}[/tex]
Standard Error ≈ 0.0147 (rounded to the nearest thousandth)
Finally, we can calculate the margin of error:
Margin of Error = 1.96 [tex]\times[/tex] 0.0147
Margin of Error ≈ 0.0288 (rounded to the nearest thousandth)
For similar question on confidence level.
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I need the Area and Perimeter.
Answer:
540
Step-by-step explanation:
Answer:
The perimiter is 22. Just add the L+W
Step-by-step explanation:
L+W (length + width is how you find perimiter. in this question just add 10+12 and you get 22. I cant help with the area though
find the angle sum of polygon which had 9 sides
Answer:
1260°
Step-by-step explanation:
Number of sides was given as 9, hence ( n= 9)
Sum of interior angle of a polygon can be determined using the expression below
[(2n-4)90°]
Substitute n=9
[((2×9) -4)) ×90]
= [(18-4)×90]
(14×90)=1260°
Hence, angle sum of polygon which had 9 sides is 1260°
Which box plot matches the data set?
34, 36, 41, 45, 49, 50, 51, 52, 56, 59
For the state of said the first quartile is 41, The median is 49.5 and the third quartile is 52.
Please help I will give Brainless
Answer:
Step-by-step explanation:
34, 36, 41, 45, 49, 50, 51, 52, 56, 59
Yes, the median is 49.5, Q1 is 41, Q3 is 52 (I always have to check)
So the box should start at Q1, end at Q3, and have it's middle line on the median. For this data set, box should start on 41, end on 52, and have its inner line on 49.5.
Of your choices, that's option C.
Please let me know if you have questions.
Please answer correctly !!!!!
Will mark Brianliest !!!!!!!!!!!!!!
Answer:
4:6 I think sorry if wrong
Step-by-step explanation:
Answer:
2 to 3. Or 2:3
Step-by-step explanation:
There are 4 triangles to every 6 squares
Their GCF is 2 so divide by 2 to get 2:3
hELP
Which equation below would have a y-intercept at (0,7) and open downward? Question 1 options: y = 7x2+16x+26 f(x) =−x2−7x−11 f(x)=−3x2+16x+7 y =7x2+7x−7
Mikhaila had 9 meters of ribbon. She cut it into pieces that were each
1/3 meter long with no ribbon left over. What was the total number of
1/3 meter pieces she made?
Answer:
klfajndxjfasisfcbweauorfochwszhfshsfqsahfwhnlsljfjlashegfchdhefgwsdgrvefdcgbvdqjejjsjjjdkdkk112132w434
Step-by-step explanation:
5uwsuhsrhudhusfhushzoihflishhghwslhkfwdilhtfhwhshfhhwajzhfshadzkhfcshfuhu3eyryyaurjfsdajsfjfjdgagdgsgafdfzdUDSIUIYAYIODQALHPOEPOWIAYISDHAZAHDCGUQEIUSD8RFHGSHXARAGIUROIHTNDAUFCISBQ3AYHQWEID
Answer:
3 meter
Step-by-step explanation: it ez
6x-4(3x-5)=2 solve for x.
Answer:
x = 3
Step-by-step explanation:
6x -4(3x-5) = 2
6x - 12x + 20 = 2
-6x = 2 - 20
-6x = -18
x = 3
write the equation of an exponential function that passes through the points (2,48) and (5,750).
The equation of an exponential function will be y = 7.68 × 2.5ˣ.
What is equation of line?
The equation of line with slope m and passes through the point (x₁, y₁) is calculated as;
y - y₁ = m (x - x₁)
Given that;
An exponential function passes through the points (2, 48) and (5, 750).
Now, The exponential function is;
y = abˣ
Where, a and b are unknowns.
Hence, For the point (2, 48), we get the equation;
48 = ab² .. (i)
And, For the point (5, 750), we get;
750 = ab⁵ .... (ii)
Solve the equation (i) for value of a, we get;
48 = ab²
a = 48/b²
Substitute in equation (ii);
750 = ab⁵
750 = (48/b²) b⁵
750 = 48 b³
b³ = 750/48
Take cube root both side;
b = 5/2
Hence, a = 48/b² = 48/(5/2)²
a = 48 × 4 / 25
a = 7.68
Thus, After substitute the value of a and b we get the exponential equation as;
y = 7.68 × 2.5ˣ
Therefore, The equation of an exponential function will be,
⇒ y = 7.68 × 2.5ˣ.
Learn more about the exponential function visit:
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Please help i'm not doing good in math i will give you the crown
Answer:
B
Step-by-step explanation:
The format for quadrant 2 would be (-,+) and answer choice be fits that because it is(-3,2)
.Simon makes a profit of $1.35 on each hot dog he sells. If a hot dog costs him $0.85 to make, how much does Simon sell for each hot dog?
Answer:
2.2 $
Step-by-step explanation:
profit= 1.35 $
cost= 0.85 $
Price= profit+cost
P=1.35+0.85
P=2.2 $
On the first day, you deposit $.01 in the bank. The second day you deposit $.02. The third day,
$.04. The fourth day, $.08. Continuing this pattern how much money will be in your account on
the 30th day?
$1.2
Step-by-step explanation:
Leila made $70 for 5 hours of work.
At the same rate, how much would she make for 8 hours of work?
Answer:
112$
Step-by-step explanation:
First, find out how much she makes per hour:
70$ in 5 hours. Divide 70 by 5.
70/5 = 14
If she makes 14$ per hour, the equation to find 8 hours is 14*8
14*8 = 112
A sporting goods store sells two types of snowboards. Brand S sells for $309. Brand B sells for $489. Last month, the store sold 11 snowboards for $4299. How many of each type of snowboard were sold?
Define each variable.
Set up the system of equations for the situation.
Solve the system using the substitution method. Be sure to express your final answer with the correct units.
find the volume of the composite figure shown
Answer:
The volume is 64 in³
Step-by-step explanation:
You split the rectangles apart and multiply the length times width times height so I got 32 for both of them and added it to get 64.
Plz help fast will mark brainliest!!!
I think it is 457.333333 π m3
Hope this helped :T
Answer:
1436.76
Step-by-step explanation.
[tex]\frac{4}{3}\pi r^{3}[/tex]
that is the formula, with r being the radius.
then if you replace r with 7 that would be the answer.
pi, also equals 3.14159265359, or shortened 3.14.
so it would look like:
[tex]\frac{4}{3}*3.14*7^{3}[/tex]
3. The length of a featured film is normally distributed with a mean of 105 minutes and a
standard deviation of 10 minutes. What is the probability that the film will run between
1.5 and 2 hours?
A 63.5%
B. 68.2%
C. 75.3%
D. 86.6%
Can you please help me
Answer:
it would be the first one because it has a value of 1,966. and the second one has a value of 983 so the first one would be the one with the greater value
Can somebody plz help me with surveys in math?
Find the solution to the system of equations.
x + 3y = 4
2x + 5y = 12
A. (3.8)
B. (-8,4)
C. (16,-4)
D. (1.2)
E. (-1,-2)
Answer:
C (16,-4)
Step-by-step explanation:
16+3*-4=4
16+(-12)=4
16-12=4
4=4
2*16+5*-4=12
32+(-20)=12
32-20=12
12=12
Given cos x = 3/5 and 3pi /2 < x < 2 and sin y = ─ square root 2/2,
and < y < 3pi /2; evaluate tan (x ─ y).
Answer:
Step-by-step explanation:
Devontae and three of his friends drive the Pennsylvania Turnpike from Ohio to New Jersey. If they split the $47.00 toll equally, how much does each person pay?
Select all of the following answer choices that are reciprocals of each other.
A. 2 and 1/2
B. -5 and 5
C. -7 and -1/7
D. 3 and 4
what is 4(11h +3g)?????
Answer:
[tex]12g+44h[/tex]
Step-by-step explanation:
Step 1: Rearrange terms
[tex]4(11h+3g)\to4(3g+11h)[/tex]
Step 2: Distribute
[tex]4(3g+11h)\to12g+44h[/tex]
Answer:
44h+12g
Step-by-step explanation:
Okay, so, this a standard algebraic expanding problem, so:
We take our 4(11h + 3g)
because we have parenthesis, we have to distribute the 4:
4 x 11h + 4 x 3g = 44h + 12g
So, 4(11h + 3g) expanded is 44h + 12g
hope this helps:)
Help not much time left its due in 20 mins
Answer:
The slope is 2/3
Step-by-step explanation:
To get from one dot to the next...
You go up 2 units and to the right 3 units
Alan used 9 as a estimate for 3 7/10+5 4/10 He added and got 9 1/10 for the actual sum.Is Alan answer reasonable?
3 7/10 + 5 4/10 = 8 11/10 = 9 1/10
so estimate = 9
actual answer = 9 1/10
yes, his answer is reasonable
brainliest or a thank you please :)) <33
The ratio of melanie's allowance to jacob's allowance is 4.1 to 20.5. If Jacob gets $5.00,how much allowance does melanie get?
Answer:
1.00
Step-by-step explanation:
x=(5*4.1)20.5
x=1
Find sin x, sin z, cos x, and cos z. Write each answer as a simplified fraction
Answer:
sin x=55/73
Sinz=48/73
cosx=48/78
cosz=55/73
Step-by-step explanation:
Using SOHCAHTOA
