Answer:
=3
Step-by-step explanation:
Hello Can Someone Please Answer This Math Question
Step-by-step explanation:
the answer is in the picture
Two similar solid cones have their radii 15cm and 25cm respectively, if the volume of the bigger cone is 325cm³. Calculate (a) the linear scale factor (b) the volume scale factor (c) volume of the smaller cone
Answer:
The length scale factor = \(\frac{24}{6} = 4\)
The area scale factor = \(4^2 = 16\)
\[\text{Larger area} = 16 \times \text{smaller area}\]
\[50.3 \times 16 = 804.8\]
The area of the large clock face is approximately 804.8 cm2.
Step-by-step explanation:
The length scale factor = \(\frac{24}{6} = 4\)
The area scale factor = \(4^2 = 16\)
\[\text{Larger area} = 16 \times \text{smaller area}\]
\[50.3 \times 16 = 804.8\]
The area of the large clock face is approximately 804.8 cm2.
Answer:
a) the linear scale factor = 5/3
b) the volume scale factor = 125/27
c) 70.2 cm³
Step-by-step explanation:
r₁ = 15 cm, r₂ = 25 cm
r₂/r₁ = 25/15 = 5/3
They are similar, so h₂/h₁ = 5/3
a) the linear scale factor = 5/3
b) the volume scale factor = (5/3)³ = 125/27
c) V₂/V₁ = 125/27
Given V₂ = 325 cm³, V₁ = 325*27/125 = 70.2 cm³
please help me
NO LINKS!!
Answer:
D
Step-by-step explanation:
π/3
Coterminal angle:-
π+π/34π/3Or
π-π/3=2π/3Option D
Question: In the expression: 4x-5+6x-8
a: Identify the third term (options listed)
- (-6x)
- (-5)
- (6x)
- (-8)
b: is it a constant or a variable term?
c: what is the coefficient? (options listed)
- (6)
- (-6)
- (8)
d: simplified (options listed)
- (10x-3)
- (-1x-2)
- (10x-13)
Answer:
a -(-6x)
b variay term
c-(-6)
d no answer
Simplify to create an equivalent expression.
20-n – 3) – 7(5 + 2n)
Choose 1 answer:
-16n – 37
-16n - 41
16n - 41
16n +41
Answer:
by the way u typed in your answer I got -15n-12
Step-by-step explanation:
let me know If it is written another way
Answer:
its b
Step-by-step explanation:
Please solve this linear algebra equation for 15 points.
Answer:
[6
-1.5]
the six and 1.5 are in the same bracket the 6 in ontop
PRECAL EDGE HELPPPPP
The water level at a pier is modeled by the function y= 2.5 cos(2pi/12.5) +12, where y represents the water level
measured in meters, and x represents the number of hours since the last high tide. After how many hours is the water
first expected to reach a depth of 12 meters? Round to the nearest tenth of an hour.
Answer:
3.1
Step-by-step explanation:
Answer:
3.1
Step-by-step explanation:
edg 2021
On January 22 in 1943, the town of Spearfish, South Dakota, set the record for the world’s fastest temperature change.
At 7:30 a.m., the temperature was `-4`°F.
By 7:32 a.m., the temperature was `45`°F.
By 9:00 a.m. the same day, the temperature was `54`°F.
By 9:27 a.m., the temperature was `-4`°F.
How many degrees did the temperature change each minute from 7:30 to 7:32?
Answer:6 degrees
Step-by-step explanation:
if sin(θ)=7/25, when π/2<θ<π, use the given information about θ to find the exact value of sin(θ/2)
we know that π/2 < θ < π, which is another way of saying that θ is in the II Quadrant, so half that angle will most likely be located on the I Quadrant, where cosine as well as sine are both positive.
Now, let's keep in mind that θ itself is in the II Quadrant, where the cosine is negative whilst the sine is positive.
[tex]\textit{Half-Angle Identities} \\\\ sin\left(\cfrac{\theta}{2}\right)=\pm \sqrt{\cfrac{1-cos(\theta)}{2}} \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ sin(\theta )=\cfrac{\stackrel{opposite}{7}}{\underset{hypotenuse}{25}}\qquad \textit{let's now find the \underline{adjacent side}} \\\\\\ \textit{using the pythagorean theorem} \\\\ c^2=a^2+b^2\implies \pm\sqrt{c^2-b^2}=a \qquad \begin{cases} c=hypotenuse\\ a=adjacent\\ b=opposite\\ \end{cases}[/tex]
[tex]\pm\sqrt{25^2-7^2}=a\implies \pm\sqrt{576}=a\implies \pm 24=a\implies \stackrel{II~Quadrant}{-24=a} \\\\[-0.35em] ~\dotfill\\\\ cos(\theta )=\cfrac{\stackrel{adjacent}{-24}}{\underset{hypotenuse}{25}} \\\\\\ sin\left(\cfrac{\theta}{2}\right)\implies \pm \sqrt{\cfrac{1-\left( -\frac{24}{25} \right)}{2}}\implies \pm \sqrt{\cfrac{1 +\frac{24}{25} }{2}}[/tex]
[tex]\pm\sqrt{\cfrac{~~\frac{49}{25} ~~}{2}}\implies \pm\sqrt{\cfrac{49}{50}}\implies \stackrel{I~Quadrant}{+\sqrt{\cfrac{49}{50}}}\implies \cfrac{\sqrt{49}}{\sqrt{50}}\implies \cfrac{7}{5\sqrt{2}} \\\\\\ \stackrel{\textit{rationalizing the denominator}}{\cfrac{7}{5\sqrt{2}}\cdot \cfrac{\sqrt{2}}{\sqrt{2}}\implies \cfrac{7\sqrt{2}}{5\sqrt{2^2}}}\implies \cfrac{7\sqrt{2}}{10}[/tex]
A manufacturer makes chocolate squares that have a target weight of 8 g. Quality control engineers sample 30 chocolate squares to see whether H0: μ = 8 vs. Ha: μ ≠ 8 where μ is the true average weight of the chocolate squares. They calculate the sample mean of the 30 squares to be 8.3 g. Suppose the population standard deviation is 0.87 g and the true weight is 8.5 g. At the 5% level of significance, calculate the power for the test. For full credit, include all steps as described in class.
Using the normal distribution and the central limit theorem, it is found that the power of the test is of 0.9992 = 99.92%.
Normal Probability DistributionIn a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score of a measure X is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
It 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, which is the percentile of X.By the Central Limit Theorem, the sampling distribution of sample means of size n has standard deviation [tex]s = \frac{\sigma}{\sqrt{n}}[/tex].In this problem:
The mean is [tex]\mu = 8.5[/tex].The standard deviation is [tex]\sigma = 0.87[/tex].A sample of 30 is taken, hence [tex]n = 30, s = \frac{0.87}{\sqrt{30}} = 0.1588[/tex].The power of the test is given by the probability of a sample mean above 8, which is 1 subtracted by the p-value of Z when X = 8, so:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
By the Central Limit Theorem:
[tex]Z = \frac{X - \mu}{s}[/tex]
[tex]Z = \frac{8 - 8.5}{0.1588}[/tex]
[tex]Z = -3.15[/tex]
[tex]Z = -3.15[/tex] has a p-value of 0.0008.
1 - 0.0008 = 0.9992.
The power of the test is of 0.9992 = 99.92%.
To learn more about the normal distribution and the central limit theorem, you can check https://brainly.com/question/24663213
Which describes the slope of the given line?
A) positive
B) zero
C) negative
D) undefined
Answer:
C) Negative
Step-by-step explanation:
This is because the top is left and going right
Answer:
negative
Step-by-step explanation:
Martin and Eva pool their loose change to buy snacks on their coffee break. One day, they spent $5.80 on 1 carton of milk, 2 donuts, and 1 cup of coffee. The next day, they spent $6.75 on 3 donuts and 2 cups of coffee. The third day, they bought 1 carton of milk, 1 donut and 2 cups of coffee and spent $6.05. How much is the price of a carton of Milk? (Write only the amount, example, $2.50)
Answer:
250
Step-by-step explanation:
gsv
When Gemma was born, her grandmother invested $200 000 in a building society for her. Find the value of this investment after 18 years if the interest rate is 4% per year and the interest is compounded quarterly.
Answer:
570.87
Step-by-step explanation:
For the polynomial below,what is the power of the term with the coefficient of 1? x^3+1/3x^4+6x+5
Hi! I hope you're enjoying your day!
Please remember that the coefficient is the number before a variable.
Also, if we have no coefficient, then we have a coefficient of 1.
Here we have
x^3 (no coefficient)
the power is after the ^ symbol or written above a number (like [tex]\bold{t^h}[/tex]) where h is the power of t
Hence, the answer is
[tex]\boxed{\boxed{\bold{3}}}[/tex]
Hope everything is clear.
Let me know if you have any other questions; if so, feel free to use the comment section.
#LearningDoesn'tEnd
#LearningIsFun
6(x-1)=9(x+2) what's the answer?
Answer:
x=-8
Step-by-step explanation:
How do I subtract 8 1/2 - 6 7/8
2x = 1/32 find the value of x
Answer:
x = 64
Step-by-step explanation:
2/x = 1/32
cross multiply
2 × 32 = x × 1
64 = 1x
64 = x
The ratio of dogs to cats is 6:11. if i have 18 dogs, how many total animals do i have
Answer:
51
Step-by-step explanation:
6 dogs: 11 cats
12 dogs: 22 cats
18 dogs : 33 cats
18 + 33 = 51
Have an amazing day!!
PLEASE RATE!!
Solve this system of equations algebraically:
y – 10 = 11x + x2
y – 12x = 30
The first solution is (–4, –18).
The second solution is
Answer:
5,90
Step-by-step explanation:
got it correct :)
The second solution for the system of equations is (5, 90).
What are Linear Equations?Linear equations are equation involving one or more expressions including variables and constants and the variables are having no exponents or the exponent of the variable is 1.
Linear equations may include one or more variables.
Given the system of equations,
y - 10 = 11x + x² and
y - 12x = 30
Consider second equation.
y - 12x = 30
⇒ y = 30 + 12x
Substitute y = 30 + 12x in the equation y - 10 = 11x + x², we get,
(30 + 12x) - 10 = 11x + x²
12x + 20 = 11x + x²
12x - 11x - x² + 20 = 0
-x² + x + 20 = 0
x² - x - 20 = 0
Discriminant = [tex]\sqrt{(-1)^{2} -(4*1*-20)}[/tex] = √(1 + 80) = √81 = ±9
x = (1 + 9)/2 and x = (1 - 9) / 2
x = 5 and x = -4
The solution x = -4 and y = -18 is given.
Other solution is,
x = 5
y = 30 + 12x = 30 + 60 = 90
Hence the second solution is (5, 90).
Learn more about Linear Equations here :
https://brainly.com/question/19770987
#SPJ2
Please help I don’t understand please I really need helppppppppp
Answer:
it's 4
Step-by-step explanation:
you just divide 8 and 4
8÷4= 4
A car rents for $280 per week plus $0.15 per mile. Find the rental cost for a three-week trip of 900 miles.
Answer:
$975
Step-by-step explanation:
The car is rented for 3 weeks
the rent is for a week is $280 so for three weeks it would be
3*28 = $840
now we need to add the per mile price to this
1 mile = $0.15 for 900 miles it would be
900*(0.15) = 135
So the total rental cost is
$840 + $135 = $975
2. Get the difference between 7 and the sum of 1.0006 and 4.06.
3
Given:
The difference between 7 and the sum of 1.0006 and 4.06.
To find:
The mathematical expression for given statement and it value.
Solution:
Sum of 1.0006 and 4.06 = [tex](1.0006+4.06)[/tex]
The expression for the difference between 7 and the sum of 1.0006 and 4.06 is
[tex]7-(1.0006+4.06)[/tex]
On simplification, we get
[tex]7-(1.0006+4.06)=7-5.0606[/tex]
[tex]7-(1.0006+4.06)=1.9394[/tex]
Therefore, the difference between 7 and the sum of 1.0006 and 4.06 is 1.9394.
Get Fit Gym currently has 96 members participating in their aerobic classes, and this number has been increasing by 2 people per
week. The cycling classes have a total of 80 members who participate, and this number
has been decreasing by 3 people per
week. In how many weeks will the number of people working out in the aerobics classes be double the number of people
attending the cycling classes?
Step-by-step explanation:
mx + b = y
2x + 96 = y
-3x + 80 = z
What we want is y to be twice z, or y = 2z
If we're going to make 2z, then that means its equation needs to be doubled as well:
2x + 96 = 2(-3x + 80)
2x + 96 = -6x + 160
8x = 64
x = 8
Now to check our answer:
2 * 8 + 96
16 + 96 = 112
-3 * 8 + 80
-24 + 80 = 56
56 * 2 = 112
hope it helps :)
Find the area can i get the answer ASAP pls......................
In this figure, ∠1 and ∠2 are located on a line.
Let m∠1=x° and m∠2=(14x)°.
What is the value of x?
Enter your answer in the box.
In a straight line, all angles sum up to 180°
====================================
[tex]\hookrightarrow \sf x +\dfrac{1}{4} x = 180[/tex]
[tex]\hookrightarrow \sf \dfrac{4x}{4} +\dfrac{1}{4} x = 180[/tex]
[tex]\hookrightarrow \sf \dfrac{4x+x}{4} = 180[/tex]
[tex]\hookrightarrow \sf 4x+x= 180(4)[/tex]
[tex]\hookrightarrow \sf 5x= 720[/tex]
[tex]\sf \hookrightarrow x = 144[/tex]
Answer:
x = 144°
Step-by-step explanation:
Since the larger line is a straight line, ∠1 and ∠2 are a linear pair. A linear pair is such a pair where two angles sum up to 180°.
⇒ ∠A + ∠B = 180°
Substitute the measure of ∠A and ∠B
⇒ x + x/4 = 180° [∠A = x; ∠B = x/4]
⇒ 4x/4 + x/4 = 180° [Rewrote x as 4x/4]
⇒ 5x/4 = 180°
Using cross multiplication
⇒ 5x = 180 × 4 = 720
⇒ x = 720/5 = 144°
HELP ME PLEASE I NEED HELP
Find the value of g(25) for the function below.
g(x) = 24(x − 39)
A.
561
B.
-14
C.
-336
D.
-911
Answer:
C.-336
Step-by-step explanation:
g(25)=24(25‒39)
=24(‒14)
=‒336
i hope it helps you
Step-by-step explanation:
g(x) =24(x-39)
g(25)=24(25-39)
=24(-14)
=-336
=c
Working together, Bill and Tom painted a fence in 8 hours. Last year, Tom painted the fence by himself. The year before, Bill painted it by himself, but took 12 hours less than Tom took. How long did Bill and Tom take, when each was painting alone?
Answer:
Tom paints the fence in 24 hours and Bill paints the fence in 12
Step-by-step explanation:
T = 1 fence / x hours
B = 1 fence / x - 12 hours
B + T = 1 fence / 8 hours
( 1 fence / x - 12 hours ) + ( 1 fence / x hours ) = 1 fence / 8 hours
( 1 / x - 12 ) + ( 1 / x ) = 1 / 8
multiply through all the denominators to get:
8x + 8 (x - 12 ) = x( x - 12 )
8x + 8x - 96 = x^2 - 12x
combine like terms to get:
x^2 - 28x + 96 = 0
factor to get:
( x - 4 ) ( x - 24 ) = 0
x = 4, 24
4 won't work, because that would mean Bill would take a negative amount of time to paint the fence by himself, so that means
Tom paints the fence in 24 hours and Bill paints the fence in 12
Help help ASAP pelsss thanks
Answer:
(5,1)
Step-by-step explanation:
what is the square root of 12?
You buy cheese in 1lb bags. Your receipt for burritos requires 0.7 ounces of cheese per serving. How many servings can you make
Answer:
Step-by-step explanation: