Answer:
50°
Step-by-step explanation:
Vertical angles are congruent, so they have the same measure.
m<POR = m<TOV
The sum of the measures of the angles is 100°.
That means each angle measure must be half of 100°.
Answer: 50°
I need help please on number 11
Answer:
c. It is a multiplicative pattern because Colby's points are doubled to find Cort's points
Step-by-step explanation:
As with many multiple-choice questions, the correct answer is the only one that makes a true statement.
__
The fact that (0, 0) fits the pattern is no indication that the pattern is additive. If it were such an indication, the additive factor would need to be 0, and you would see both players having the same points.
A multiplication factor of 6 is obviously incorrect, because 6×6 ≠ 12.
A multiplication factor of 2 fits every line of the table, so describing Cort's points as double Colby's points is a correct description.
An additive factor of 6 is obviously incorrect, because 2+6 ≠ 4.
Anyone know the answer to these? Please and thank you
In Mrs. Wison's math dass, the ratio of girls
to total students is 5 to 8. If there are 24 total
students, how many boys are in the class?
Answer:
G= Number of girls
T= total No. of kids
B = No. of boys
B = T - G
Given G/T = 5/8 = G/ ( B + G) = G/ 24
or G = 5*24/8 =15
No. of girls = 15
No. of Boys = 9
Step-by-step explanation:
A $50 pair of shoes is discounted by 15%. What will be the new price of the shoes?
I need help ASAP
Answer:
$42.50
Step-by-step explanation:
Multiply 50 by .15 to find how much you save, then subtract from 50 to find the new price.
Answer:
42.50
Step-by-step explanation:
50 * 0.15 ( which you get by doing 15 ÷ 100) = 7.5, the discount amount.
50.00 - 7.5 = 42.50.
Hope this helps.
11. Find x and y.
135 + x = 180
Answer:
x-intercept(s):
45
y-intercept(s):
None
Step-by-step explanation:
Calculate the area of this right-angled triangle.
Give your answer in m' to 1 d.p.
3 m
14 m
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Answer >
Jayden jogs 4.125 miles through his neighborhood every
morning. After two weeks, how many miles has he run?
Answer:
57.75 miles
Step-by-step explanation:
There are 7 days in 1 week and 14 days in 2 weeks.
14 × 4.125 miles = 57.75 miles
If (x)sin(2y) = (y)cos(2x), then what is dy/dx at the point (π/2 , π/4) ?
A. -1
B. 0
C. 1
D. 2
Please show work.
Answer:
A) [tex]-1[/tex]
Step-by-step explanation:
Given:
[tex]xsin(2y)=ycos(2x)[/tex]
Use implicit differentiation:
[tex]\frac{dy}{dx}xsin(2y)=\frac{dy}{dx}ycos(2x)[/tex]
Use the Product Rule:
[tex](\frac{dy}{dx}x)(sin(2y))+(x)(\frac{dy}{dx}(sin(2y))) =(\frac{dy}{dx}y)(cos(2x))+(y)(\frac{dy}{dx}(cos(2x)))[/tex]
[tex]sin(2y)+2xcos(2y)\frac{dy}{dx}=cos(2x)\frac{dy}{dx}-2ysin(2x)[/tex]
Bring dy/dx terms to right side:
[tex]sin(2y)+2ysin(2x)=cos(2x)\frac{dy}{dx}-2xcos(2y)\frac{dy}{dx}[/tex]
Combine like terms:
[tex]sin(2y)+2ysin(2x)=(cos(2x)-2xcos(2y))\frac{dy}{dx}[/tex]
Divide both sides by cos(2x)-2xcos(2y) to isolate dy/dx:
[tex]\frac{sin(2y)+2ysin(2x)}{cos(2x)-2xcos(2y)}=\frac{dy}{dx}[/tex]
Plug in coordinates [tex](x,y)\rightarrow(\frac{\pi}{2},\frac{\pi}{4})[/tex] and evaluate:
[tex]\frac{sin(2(\frac{\pi}{4}))+2(\frac{\pi}{4})sin(2(\frac{\pi}{2}))}{cos(2(\frac{\pi}{2}))-2(\frac{\pi}{2})cos(2(\frac{\pi}{4}))}=\frac{dy}{dx}[/tex]
[tex]\frac{sin(\frac{\pi}{2}))+\frac{\pi}{2}sin(\pi)}{cos(\pi)-\pi cos(\frac{\pi}{2})}=\frac{dy}{dx}[/tex]
[tex]\frac{1+\frac{\pi}{2}(0)}{(-1)-\pi (0)}=\frac{dy}{dx}[/tex]
[tex]\frac{1}{-1}=\frac{dy}{dx}[/tex]
[tex]-1=\frac{dy}{dx}[/tex]
Therefore, [tex]\frac{dy}{dx}[/tex] at the point [tex](\frac{\pi}{2},\frac{\pi}{4})[/tex] is [tex]-1[/tex]
Helpful tips:
Remember to treat y as a constant when doing implicit differentiation, so when differentiating y with respect to x, it needs dy/dx next to itFind two numbers that multiply to make the 1st number and add to make the 2nd number. Multiply -42; Add 1 _____, and _____
Answer:
-6 and 7
Step-by-step explanation:
It is useful to look at the factor pairs of -42.
-42 = -1(42) = -2(21) = -3(14) = -6(7)
Sums of these factor pairs are 41, 19, 11, 1.
You want the last pair of factors: -6 and 7.
3/4 mile each day for 8 days how far did I walk
Answer:
6 miles
Step-by-step explanation:
Since you walked 3/4 miles in 1 day then in 8 days you walked...
3/4*8=3*2=6 miles
Bats Alive is a bat rescue group that works with fruit-eating and insect-eating bats. Last year, the group saved 5 fruit-eating bats for every 2 insect-eating bats they saved. If the rescue group saved 51 more fruit-eating bats than insect-eating bats last year, how many bats did they save altogether?
Answer:
119Step-by-step explanation:
lets begin by adding 5 and 2
=7
now the difference between 5 and 2 is 3
so we know that 3/7 is 51
lets divide everything by 3 to get 1/7
1/7 is 17
now lets do
17 x 7 to find the total bats saved
= 119
Answer:
119
Step-by-step explanation:
Help me as soon as possible please
ur answer is
x=63
after simplifying
755819 to the nearest thousand
756 thousands
.................
3)
Which of the following figures is the scaled copy of the figure A?
The scaled copy of figure A is the figure in option c so the correct option is C.
What is the scale factor?To adjust the size of a figure without altering its shape, a scale factor is a number or conversion factor that is utilized. It is employed to change the size of an object.
The ratio of one object's scale to that of a new object, which has its representation but is larger, is known as a scale factor (bigger or smaller).
Given:
The dimension of figure A is 7 inches × 4 inches × 1 inch,
The option dimensions are
a) 14 inches × 8 inches × 2.5 inches,
b) 14 inches × 10 inches × 2 inches,
c) 14 inches × 8 inches × 2 inches,
Here, the dimension of the option C is increased by scale factor of 2,
(7 inches × 4 inches × 1 inch) × 2 = 14 inches × 8 inches × 2 inches,
(7 inches × 4 inches × 1 inch) × 2 = Option C dimension
Thus, figure A scaled copy is the figure in option c.
To know more about scale factors:
https://brainly.com/question/28658657
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0.57 x 0.13 Is my problem, help needed
Answer:
0.0741
Step-by-step explanation:
Answer:
Have a great rest of ur day :)
Step-by-step explanation:
Sasha brought chocolate and vanilla cupcakes to school for her birthday. 90 students decided to take a cupcake, and 9 of them picked vanilla. What percentage of the students picked a vanilla cupcake?
Answer:
we need to to find what percentage 9 is of 90
from looking at this we can see that 90 is just 9*10
so 9% of students took a vanilla cupcake
Hope This Helps!!!
Which functions are vertical stretches of the square root function? Check all that apply.
f(x) = √x/4
f(x) = √16x
f(x) = 1/2 √4x
f(x) = 3/8 √9x
f(x) = 6/5 √x
f(x) = 7/9 √x
Answer:
Step-by-step explanation:
f(x) = √16x
f(x) = 3/8 √9x
f(x) = 6/5 √x
howdy!!
the answer is
B. f(x) = √16x
D. f(x) = 3/8 √9x
E. f(x) = 6/5 √x
GOODLUCK!!
On section AB, whose length is 192 cm, take the point C so that AC: CB = 1: 3. The point D is taken on the AC section so that CD = BC / 12. Find the distance between the midpoints of the AD and CB sections
50 points
Answer:
112 cmStep-by-step explanation:
Given:
AB = 192 cmAC : CB = 1 : 3CD = BC/12The distance between midpoints of AD and CB = xFind the length of AC and CB:
AC + CB = ABAC + 3AC = 1924AC = 192AC = 192/4AC = 48 cmFind CB:
CB = 3AC = 3*48 = 144 cmFind the length of CD:
CD = BC/12 = 144/12 = 12 cmFind the length of AD:
AD = AC - CD = 48 - 12 = 36 cmFind the midpoint of AD:
m(AD) = 36/2 = 18 cmFind the midpoint of CB:
m(CB) = AC + 1/2CB = 48 + 144/2 = 48 + 82 = 130 cmFind the distance between the midpoints:
x = 130 - 18 = 112 cmPLEASE HELP WILL MARK BRAINLIEST 50 POINTS!!!
Answer:
I hope this answer helps; this is just a brief run-down of your questions.
Step-by-step explanation:
1) So plugging in 10 for t (120 hours in 5 days and the equation takes in 12 hours per rotation) and 100 for b and 1 for r, solving it will give you the answer.
2) f(x) = 1 million. Same thing but instead, we are finding days. Plugin 100 for b and 1 for r, simplify till you get t.
1,000,000 = 100(1+1) ^ t
10000 = 2^t
log2(10000) = t Hope this is right?
3) Using problem 2 as an example, I'm sure you can fill in the table.
4) Exponential function has a tendency to rapidly increase the growth rate of the graph due to it increasing by a specific amount each and every time after the output.
In other words, your previous output becomes the input of the current cycle of your function.
5 ) The graph looks similar to an exponential function which you search it up.
The average test scores in a physics class is normally distributed with a standard deviation of 5.4. 50 scores with a sample mean of 79 were selected at random.
(a) Find a 95% confidence interval for the population mean test score.
(b) What is the value of the margin of error?
Using the t-distribution, it is found that:
a) The 95% confidence interval for the population mean test score is (77.43, 80.57).
b) The margin of error is of 1.57.
What is a t-distribution confidence interval?The confidence interval is:
[tex]\overline{x} \pm t\frac{s}{\sqrt{n}}[/tex]
In which:
[tex]\overline{x}[/tex] is the sample mean.t is the critical value.n is the sample size.s is the standard deviation for the sample.The critical value, using a t-distribution calculator, for a two-tailed 95% confidence interval, with 50 - 1 = 49 df, is t = 2.0096.
The other parameters are given by:
[tex]\overline{x} = 79, s = 5.4, n = 50[/tex]
Then, the bounds of the interval are given as follows.
[tex]\overline{x} - t\frac{s}{\sqrt{n}} = 79 - 2.0096\frac{5.4}{\sqrt{50}} = 77.43[/tex]
[tex]\overline{x} + t\frac{s}{\sqrt{n}} = 79 + 2.0096\frac{5.4}{\sqrt{50}} = 80.57[/tex]
The 95% confidence interval for the population mean test score is (77.43, 80.57).
Item b:
The margin of error is half the difference between the bounds, hence:
M = (80.57 - 77.43)/2 = 1.57.
More can be learned about the t-distribution at https://brainly.com/question/16162795
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Nikki used the calculations shown to determine whether a carton of 12 eggs or a carton of 18 eggs was the better buy.
A carton of 12 eggs cost $2.39, and a carton of 18 eggs cost $3.39.
Unit price of the 12-egg carton = ($2.39)(12 eggs) = $28.68 per egg
Unit price of the 18-egg carton = ($3.39)(18 eggs) = $61.02 per egg
The 12-egg carton has the lower unit cost, so it is the better buy.
What was her first error?
She should have divided the cost of the carton by the number of eggs to find the price per egg.
She should have divided the number of eggs by the cost of the carton to find the price per egg.
She made a computational error when multiplying to find the unit price of the two cartons.
She made an error in choosing the eggs with the lower unit c
She should have divided the number of eggs by the cost of the carton to find the price per egg.
- Liyah
helpppppppppppppppp meeeeeeeeeeeeeeeeeeeee
Answer:
the slope is 1/3x and the y intercept is 5
Step-by-step explanation
y= mx +b b is they intercept and m is the slope
Answer:
slope= 1/3
y-intercept= -5
Step-by-step explanation:
y=mx+b
m= slope
b= y-intercept so,
y=1/3x-5
slope= 1/3
y-intercept= -5
in your own words what is a credit card????
10.) Sam makes $9.75 per hour at his job. How much money does he
make in 7.5 hours?
Answer:$73.12
Step-by-step explanation:
9.75 multiply by 7.5 then you will get $73.12
I don't really know if it correct but if it is then hope this helps.
solve the question on the image
nine less than the product of 4 and a number is 23
Step-by-step explanation:
4x - 9 = 23
4x = 32
x = 8
the number is 8.
nine less than the product of 4 and a number is 23.
Answer:-x = 8
Explanation:-nine less than the product of 4 and a number is 23 → 4x - 9 = 23
=> 4x - 9 = 23
=> 4x = 23+9
=> 4x = 32
=> x = 32/4
=> x = 8
-----------------------------------------------------------
substituting x = 8 in the equation,
=> 4(8) - 9 = 23
=> 32-9 = 23
=> 23 = 23 ( varified )
Susie ran a race. She ran 555 miles an hour, and the race took her ttt hours to complete.
Answer:
What is the question
Step-by-step explanation:
This is only the information what is the question
what are the numerical and literal coefficients of -5x3 y
Answer:
the numerical are -5 and 3
the literal coefficient is X and y
Step-by-step explanation:
because numerical is the number and literal coefficients is a variable that represents the number
hope it help
someone please help with this thank you!
Answer:
answer for the first part: 61 ft
second answer: 152.5
A streaming service charge $10 plus $1.25 per movie downloaded. You have
budgeted up to $30 for this service. Write and solve an inequality to determine
how many movies you can stream.
Answer:
16
Step-by-step explanation:
30-10=20
20 divided by 1.25 = 16
