Answer:
so to solve this you do x + 5 = 5x than -5 x 5x = -25x
Step-by-step explanation:
Answer:
Hey, Gm!
Step-by-step explanation:
-5x-25 is your answer...
All you have to do is multiply using the distributive property.
Hope this helps!
Have a nice day!♥
Bubbles the fish is 4 feet below sea level. Swimmy the fish is 3 feet below sea
level. Which fish is closest to sea level? *
A: Bubbles?
B: Swimmy?
worth 25 points pls help me
Answer:
swimmy is closest to sea level
On any given day 34% of sales at Ruby's jewelry store are from necklaces, while 28% of sales at Nugget Jewels
are from necklaces. Suppose Ruby's has 50 customers and Nugget Jewels has 60 customers on a randomly
selected day. Let R = the proportion of sales that are from necklaces at Ruby's and N = the proportion of sales that
are from necklaces at Nugget Jewels. What is the probability that the proportion of sales from necklaces at Ruby's
will be less than the proportion of sales from necklaces at Nugget Jewels?
Answer:
0.2483 = 24.83% probability that the proportion of sales from necklaces at Ruby's will be less than the proportion of sales from necklaces at Nugget Jewels.
Step-by-step explanation:
To solve this question, we need to understand the normal probability distribution and the central limit theorem.
Normal Probability Distribution:
Problems of normal distributions can be solved using the z-score formula.
In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the zscore of a measure X is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.
Subtraction of normal variables:
When we subtract normal variables, the mean is the subtraction of the means, while the standard deviation is the square root of the sum of the variances.
Central Limit Theorem
The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]s = \frac{\sigma}{\sqrt{n}}[/tex].
For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.
For a proportion p in a sample of size n, the sampling distribution of the sample proportion will be approximately normal with mean [tex]\mu = p[/tex] and standard deviation [tex]s = \sqrt{\frac{p(1-p)}{n}}[/tex]
Sampling distribution for the sample proportion of necklaces from Ruby's jewelry:
34% of sales at Ruby's jewelry store are from necklaces, 50 customers.
This means that [tex]p = 0.34, n = 50[/tex]
So
[tex]\mu_{R} = p = 0.34[/tex]
[tex]s_{R} = \sqrt{\frac{p(1-p)}{n}} = \sqrt{\frac{0.34*0.66}{50}} = 0.067[/tex]
Sampling distribution for the sample proportion of necklaces from Nugget jewels:
28% of sales at Nugget Jewels, 60 customers.
This means that [tex]p = 0.28, n = 60[/tex]
So
[tex]\mu_{N} = p = 0.28[/tex]
[tex]s_{N} = \sqrt{\frac{p(1-p)}{n}} = \sqrt{\frac{0.28*0.72}{60}} = 0.058[/tex]
What is the probability that the proportion of sales from necklaces at Ruby's will be less than the proportion of sales from necklaces at Nugget Jewels?
This is [tex]P(X < 0)[/tex], on the subtraction distribution R - N.
We have that:
[tex]\mu_{R-N} = \mu_{R} - \mu_{N} = 0.34 - 0.28 = 0.06[/tex]
[tex]s_{R-N} = \sqrt{s_{R}^2 + s_{N}^2} = \sqrt{0.067^2 + 0.058^2} = 0.0886[/tex]
The probability is the pvalue of Z when X = 0. So
[tex]Z = \frac{X - \mu_{R-N}}{s_{R-N}}[/tex]
[tex]Z = \frac{0 - 0.06}{0.0886}[/tex]
[tex]Z = -0.68[/tex]
[tex]Z = -0.68[/tex] has a pvalue of 0.2483.
0.2483 = 24.83% probability that the proportion of sales from necklaces at Ruby's will be less than the proportion of sales from necklaces at Nugget Jewels.
Answer:
0.250
Step-by-step explanation:
got it right on edge
Plzz help ..........
Answer:
AB and CD - Parallel Lines
EF and CD - Perpendicular Lines
GH and EF - Neither Parallel nor Perpendicular Lines
Let me know if this helps!
Answer:
EF and CD ------- perpendicular lines
AB and CD --------parallel Lines
GH and EF --------- neither parallel nor perpendicular lines
Step-by-step explanation:
Parallel lines are lines that do not ever intersect
Perpendicular lines create 90 degree angles
neither is just neither
figure a has 1/3 of its hole shadded enter another fraction equal to 1/3 ASAP 20 PONITS ON THE LINE
Answer:
It would be 4/12 or 2/6
Step-by-step explanation:
4÷ 12 = 3 = 1/3 and 2÷6 = 3 =1/3
PLEASE HELP
Select the mean, median, mode and range of the following list of values.
Answer:
The median is three, the mean is 3.5, the range is 6 and there is no mode.
Step-by-step explanation:
Solve for the given time.
A colony of 36,000 bacteria grows continuously at a rate of 12%. How many bacteria will there be in 2 years?
Answer:
45158
Step-by-step explanation:
Since the colony grows at a rate of 12%, after 2 years there will be [tex]36000\cdot 1.12^2 = 45158.4[/tex] bacteria. Since you probably can't have part of a bacteria, you round to 45158.
Answer:
45158
Step-by-step explanation:
Since the colony grows at a rate of 12°/• , after 2 years there will be 36000.
1.12 power of 2 = 45158.4 bacteria.
And you cant have part of a bacteria
you round it to
45158.
what is the probability of choosing Saturday in a month that begins with the letter j
Answer:
2%
Step-by-step explanation:
Jamie has white, blue, and pink shirts. She has black, white, and beige pants. She has black and brown shoes. If she chooses one shirt,
one pair of pants, and one pair of shoes, how many unique outfits can she make?
Help me with this :)))) will make Brainliest
Answer:
-.5
Step-by-step explanation:
I need help with please and thank you can yall help me with a thing
Answer:
2 will give you the larger value of 17
Step-by-step explanation:
-
Using the graph, what is the rate of change from f(-2)
to f(0)?
please help
Answer:.
-4.
Step-by-step explanation:
f(0) - f(-2) / (0- (-2))
= 0 - 8 / 2
= -8/2
= -4.
Which equation represents a nonlinear function
Answer:
the first answer y=-8/5x+19.4
Step-by-step explanation:
Please tell me if the answer is right and if it is right click on thanks i appreciate it
the population of alaska is approximately 6.5 * 10^(5) people the populatio of illinois's is about 1.3 * 10^(7)people. how many times greater is the population of Illinois in the population of Alaska
Answer:
20 times greater
Step-by-step explanation:
Given the following
Population of alaska = 6.5 * 10^(5) people
Population of illinois's = 1.3 * 10^(7)people.
To know the number of times population of Illinois in the population of Alaska, we will take their population ratio;
Ratio = Population of illinois's /Population of alaska
Ratio = 1.3 * 10^(7)/6.5 * 10^(5)
Ratio = 0.2 * 10^7-5
Ratio = 0.2 * 10^2
Ratio = 20
Hence the population of Illinois is 20 times greater than population of alaska
17) HELP I have the answer I just need to show the work
Which trig ratio or formula should you use to find “c”?
Answer: B
Don’t give me the answer I already know it just show the work pls
Here
cos25°=BC/AB=8/c
c=8/cos25°
so cos function is helpful here
really a dum.beannie
Answer:
b) cos25
c = 7.248 or 7.2
Step-by-step explanation:
Cosine = [tex]\frac{adjacent}{hypothenuse}[/tex]
Cos 25 = [tex]\frac{8}{c}[/tex]
Cos of 25 is 0.906
0.906 = [tex]\frac{8}{c}[/tex]
Multiply 8 on both sides:
0.906 x 8 = [tex]\frac{8}{c}[/tex] x 8
7.248 = c
Help please! would appreciate it
Answer:
yes
Step-by-step explanation:
just plug in
2+3 is equal to 5 so that works
4(2)+13(3) is greater than 20 so that also works
Answer:
Yes
Step-by-step explanation:
I can explain more in-depth if you'd like, but basically plug in 2 where x is and plug in 3 where y is. The first equation would turn into 2 + 3 ≤ 5, which is correct, and the second equation would transform to 4(2) + 13(3) > 20. Multiply, then it'll be 8 + 39 > 20, then add 8 and 39 and it'll be 47 > 20, which is true. I hope I explained that well, but yes, (2, 3) is a solution :)
F (x)= 5x-14 G (x)= 12x+8 H (x)= 62x-54 Dadas las funciones resolver las siguientes operaciones a. F (x)+ G (x) b. G (x)- (H (x)-F (x)) c. (G (x)-F (x)) (H (x)+G (x) d. (F (x)-H (x))/ (G (x)+ F(x) e. G (x) / H (x9
Answer:
a) [tex]17\cdot x -6[/tex], b) [tex]-45\cdot x +48[/tex], c) [tex]518\cdot x^{2} +1306\cdot x -1012[/tex], d) [tex]\frac{-57\cdot x +40}{17\cdot x -6}[/tex], e) [tex]2\cdot \left(\frac{3\cdot x + 2}{31\cdot x - 27} \right)[/tex]
Step-by-step explanation:
Sean [tex]f(x) = 5\cdot x -14[/tex], [tex]g(x) = 12\cdot x + 8[/tex] y [tex]h(x) = 62\cdot x - 54[/tex]. A continuación, desarrollamos las siguientes operaciones:
a) [tex]f(x) + g(x)[/tex]
[tex](5\cdot x - 14) + (12\cdot x + 8)[/tex]
[tex]17\cdot x -6[/tex]
b) [tex]g(x) - [h(x)-f(x)][/tex]
[tex](12\cdot x + 8) - [(62\cdot x - 54)-(5\cdot x - 14)][/tex]
[tex]12\cdot x + 8 - (57\cdot x -40)[/tex]
[tex]12\cdot x +8 -57\cdot x +40[/tex]
[tex]-45\cdot x +48[/tex]
c) [tex][g(x)-f(x)]\cdot [h(x)+g(x)][/tex]
[tex][(12\cdot x + 8)-(5\cdot x -14)]\cdot [(62\cdot x -54)+(12\cdot x +8)][/tex]
[tex](12\cdot x +8 -5\cdot x +14) \cdot (62\cdot x -54+12\cdot x+8)[/tex]
[tex](7\cdot x +22)\cdot (74\cdot x-46)[/tex]
[tex]7\cdot x \cdot (74\cdot x - 46)+22\cdot (74\cdot x -46)[/tex]
[tex](7\cdot x)\cdot (74\cdot x) - 46\cdot (7\cdot x )+22\cdot (74\cdot x)-22\cdot (46)[/tex]
[tex]518\cdot x^{2}-322\cdot x +1628\cdot x -1012[/tex]
[tex]518\cdot x^{2} +1306\cdot x -1012[/tex]
d) [tex]\frac{f(x)-h(x)}{g(x) + f(x) }[/tex]
[tex]\frac{(5\cdot x - 14)-(62\cdot x - 54)}{(12\cdot x +8)+(5\cdot x -14)}[/tex]
[tex]\frac{-57\cdot x +40}{17\cdot x -6}[/tex]
e) [tex]\frac{g(x)}{h(x)}[/tex]
[tex]\frac{12\cdot x + 8}{62\cdot x - 54}[/tex]
[tex]\frac{4\cdot (3\cdot x +2)}{2\cdot (31\cdot x -27)}[/tex]
[tex]2\cdot \left(\frac{3\cdot x + 2}{31\cdot x - 27} \right)[/tex]
100 percent of blank = 60
Solve for blank.
Answer:
60
if its all of 60 the answer is 60
Step-by-step explanation:
have a great day
The function f ( x ) = 2 x ^2 − x − 4 models the shape of a ditch. What is the average slope over the interval −4 ≤ x ≤ 2?
Answer:
[tex]Rate = -5[/tex]
Step-by-step explanation:
Given
[tex]f(x) = 2x^2 - x - 4[/tex]
[tex]-4 \le x \le 2[/tex]
Required
Determine the average slope over the given interval
This is calculated as:
[tex]Rate= \frac{f(b) - f(a)}{b - a}[/tex]
Where:
[tex]a = -4[/tex]
[tex]b =2[/tex]
So:
[tex]Rate= \frac{f(2) - f(-4)}{2 - (-4)}[/tex]
[tex]Rate= \frac{f(2) - f(-4)}{2 +4}[/tex]
[tex]Rate= \frac{f(2) - f(-4)}{6}[/tex]
Solving for f(2) and f(-4), we have:
[tex]f(x) = 2x^2 - x - 4[/tex]
[tex]f(2) = 2 *2^2 -2 - 4[/tex]
[tex]f(2) = 2[/tex]
[tex]f(-4) = 2*(-4)^2 - (-4) - 4[/tex]
[tex]f(-4) = 2*16 +4 - 4[/tex]
[tex]f(-4) = 32[/tex]
So, the equation becomes
[tex]Rate= \frac{f(2) - f(-4)}{6}[/tex]
[tex]Rate= \frac{2 - 32}{6}[/tex]
[tex]Rate= \frac{-30}{6}[/tex]
[tex]Rate = -5[/tex]
x + y = 0
now you your ordered pairs to graph the lines on the coordinate plane. First graph x + y = 0.
A 15m long ladder reached a window 9m high from the ground on placing it against a wall at a distance x. Find the distance of the foot of the ladder from the wall.
Answer:
12 meters
Step-by-step explanation:
Given That :
Length of ladder = 15m
Height of wall =. 9 m
Using Pythagoras rule :
Adjacent² = hypotenus² - opposite²
Adjacent² = 15² - 9²
Adjacent² = 225 - 81
Adjacent² = 144
Adjacent = sqrt(144)
Adjacent, x = 12
What is the equation of a line that is perpendicular to the line y = -3x + 2 and passes through the point (6, 8)?
help asap schools almost done pls help me
Answer:
exit ticket
1.) 6+8x
2.) 18+6x^5
homework module 4 lesson 6
1.) 78
2.) 61
3.) 24
Step-by-step explanation:
Bedroom rent
1 $500
2 $625
3 $700
what would be the likely cost of a 4 bedroom apartment?
Answer:
maybe $825
Step-by-step explanation:
Im not sure but I think Its accurate
solve for x. the figure is a trapezoid
Answer:
180-11x-30=140
180-170=11x
10=11x
x=10/11
Step-by-step explanation:
Mr. Cipalla bought 5 pounds of clay for an art project. He paid $35.35 for clay. What is the unit price per pound of the clay he
bought?
Answer:
$7.07
Step-by-step explanation:
35.35/5=7.07
round 87.48 to the underlined place.
A rectangle has a length of 25x to the power of 3 and a width of 5x of power of 2. Find the area in square units.
a. 125x of the 5th power
b. 25x to the power of 6
c. 125x to the power of 6
d. 25x to the power of 5
How would I solve this.
If you answer I will give brainliest.
Answer:
∠ QPR = 64.5°
Step-by-step explanation:
The chord- chord angle QPR is half the sum of the arcs intercepted by the angle and its vertical angle, then
∠ QPR = [tex]\frac{1}{2}[/tex] (QR + ST ) = [tex]\frac{1}{2}[/tex] (98 + 31)° = 0.5 × 129° = 64.5°
Simplify- 0.05+1.5×5÷10×0.5
f(t) = 3t^3 - 4t + 6t^2 and g(n) = 5t^3 + 2t^2 - 3t. What is f(t) - g(t)
Answer:
- 2t³ + 4t² - t
Step-by-step explanation:
f(t) - g(t)
= 3t³ - 4t + 6t² - (5t³ + 2t² - 3t) ← distribute parenthesis by - 1
= 3t³ - 4t + 6t² - 5t³ - 2t² + 3t ← collect like terms
= - 2t³ + 4t² - t