Answer:
113.09733552923 in2
Step-by-step explanation:
The leash is basically the radius. If the radius is 6...
If you find the area of the circle using the formula πr square. π=3.14. you can do the rest.
Your scores on test in math are 89, 95 and 76. You will be taking one more test and you want your (mean) average to be 90. What will your test score have to be?
Answer:
100
Step-by-step explanation:
89+95+76=260
260+100(test score)=360
360/4=90
mark me brainiest
Suppose f(x) = x^2. what is the graph of g(x) = f(2x)?
Answer:
C
Step-by-step explanation:
Substitute 2x into the equation where x is located. G(x)= (2x)^2=4x^2. This will be a graph which has been vertically stretched has a very steep curve to it facing up. It is C.
Answer: c is the correct answer
Step-by-step explanation:
Just took it
In the drawer you have 8 black socks and 5 yellow socks , if you pick out a sock what is the probability that the pick out a yellow sock?
Answer:
Step-by-step explanation:
I believe the answer is 5/13 chance because 8 black socks then 5 yellow so In total there are 13 socks and the question revolves around the yellow socks so 5/13 chance. Hope it helps. :)
5/13 because there is 13 socks all together and 5 of them are yellow
Is 27,36,45 A right trangle?
Answer:
We square the 2 smallest sides and sum them:
27^2 = 729 + 36^2 = 1,296
729 + 1,296 = 2,025
This equals the longest side squared 45^2 = 2,025
When this occurs the triangle is a right triangle.
Step-by-step explanation:
What is the value of (–3 + 3i) + (–2 + 3i)? –5 – 6i –5 + 6i 5 + 6i 5 – 6i
Answer: Second option
[tex]-5 + 6i[/tex]
Step-by-step explanation:
The expression [tex](-3 + 3i) + (-2 + 3i)[/tex] is the sum of two complex numbers and their real part
To solve the sum you must add the real parts with the real parts and the complex numbers with the complex numbers
so, we have:
[tex]-3 + 3i -2 + 3i\\\\(-3 - 2) + (3i + 3i)\\\\-5 + (3i + 3i)\\\\-5 + 6i[/tex]
the answer is the second option
[tex]-5 + 6i[/tex]
the table shows the number of minutes of exercise for each person. compare and contrast the measures of variation for both weeks. please answer quickly and thank you!
To compare the measures of variation for both weeks, calculate the range and standard deviation. Week 1 has a larger range and standard deviation compared to Week 2.
Explanation:
To compare and contrast the measures of variation for both weeks, we need to calculate the range and standard deviation for each week. The range is the difference between the highest and lowest values, while the standard deviation measures the average amount by which each data point differs from the mean.
For Week 1, the range is 90 (90 - 30), and the standard deviation is 25.62. For Week 2, the range is 30 (60 - 30), and the standard deviation is 11.55.
Therefore, Week 1 has a larger range and standard deviation compared to Week 2.
Learn more about Variation here:
https://brainly.com/question/31943111
#SPJ6
Given: m∠MEJ=30°, m∠MFJ=50° , Find: Measurement of Arc KL & Measurement of Arc MJ
Answer:
Part a) The measurement of arc KL is [tex]20\°[/tex]
Part b) The measurement of arc MJ is [tex]80\°[/tex]
Step-by-step explanation:
Let
x--------> the measure of arc KL
y-------> the measure of arc MJ
we know that
The measurement of the outer angle is the semi-difference of the arcs it encompasses.
[tex]m<MEJ=\frac{1}{2}(y-x)[/tex]
substitute the given value
[tex]30\°=\frac{1}{2}(y-x)[/tex]
[tex]60\°=(y-x)[/tex]
[tex]y=60\°+x[/tex] ------> equation A
The measure of the inner angle is the semi-sum of the arcs comprising it and its opposite.
[tex]m<MFJ=\frac{1}{2}(x+y)[/tex]
substitute the given value
[tex]50\°=\frac{1}{2}(x+y)[/tex]
[tex]100\°=(x+y)[/tex]
[tex]y=100\°-x[/tex] ------> equation B
Equate the equation A and B and solve for x
[tex]60\°+x=100\°-x[/tex]
[tex]2x=100\°-60\°[/tex]
[tex]x=20\°[/tex]
Find the value of y
[tex]y=100\°-20\°=80\°[/tex]
therefore
The measurement of arc KL is [tex]20\°[/tex]
The measurement of arc MJ is [tex]80\°[/tex]
What is the amplitude, period, and phase shift of f(x) = −4 sin(2x + π) − 5?
Amplitude = −4; period = 2π; phase shift: x = -pie/2
Amplitude = −4; period = π; phase shift: x = pie/2
Amplitude = 4; period = π; phase shift: x = -pie/2
Amplitude = 4; period = 2π; phase shift: x = pie/2
Answer:
Amplitude = 4; period = π; phase shift: x = -pie/2
Step-by-step explanation:
For a sine wave of the following type:
y = Asin(Bx + C) + D, we have that:
A represents the amplitude
C represents the phase shift
D represents the vertical shift
And the period is given by: [tex]\frac{2 \pi}{B}[/tex]
Therefore, considering: f(x) = −4 sin(2x + π) − 5, we know that sin(a + π) = -sin(a). Then:
f(x) = −4 sin(2x + π) − 5 = 4sin(2x)-5 = 4cos(2x - π/2) - 5
The amplitude equals 4
The period is T = π
The fase shift is: -π/2.
Therefore, the correct option is:
Amplitude = 4; period = π; phase shift: x = -pie/2
In preparation For her ice cream party Emily surveyed 35 students at her school about their favorite ice cream flavor she found out that seven of them like vanilla if 210 students are expected to attend the ice cream party about how many will prefer vanilla
Answer:
205
Step-by-step explanation:
A restaurant manager determined that about 12 of all customers would wait 20 minutes or more for a table. Which simulation could NOT be used to answer questions about whether a customer would wait?
Answer:
Step-by-step explanation: Spinner lands on Green or blue
Answer: Land on Red or Green
Step-by-step explanation:
Hope it helps!
Find x on the triangle
Answer:
(c)
Step-by-step explanation:
Using the cosine ratio in the right triangle
cos42° = [tex]\frac{adjacent}{hypotenuse}[/tex] = [tex]\frac{x}{12}[/tex]
Multiply both sides by 12
12 × cos42° = x, hence
x ≈ 8.9 → (c)
The answer is C hope it helps :))))
the table below lists four names and their corresponding aproximant weights on earth.
________________________________
mass (kilograms) | weight (newtons)
20 | 196
50 | 490
x | 1078
130 | 1274
140 | 1372
the ratio weight to mass in contant. wich statemen describes the ratio of weight to mass and the value of x in the table?
A. 98/10; X =90
B. 98/10; =110
C. 10/98; X =90
D. 10/98; X= 110
Answer:
The statement which describes the ratio of weight to mass and the value of x is ⇒ 98/10 ; = 110 answer B
Step-by-step explanation:
* Lets explain how to solve the problem
- The mass (kilograms) values are
20 , 50 , x , 130 , 140
- The corresponding weight (newtons) values are
196 , 490 , 1078 , 1274 , 1372
* Lets find the ratio between weight to mass
∵ 196/20 ⇒ divide up and down by 2
∴ 196/20 = 98/10
∵ 490/50 ⇒ divide up and down by 10
∴ 49/5 ⇒ multiply up and down by 2
∴ 49/5 = 98/10
∴ 490/50 = 98/10
∵ 1274/130 ⇒ divide up and down by 13
∴ 1274/130 = 98/10
∵ 1372/140 ⇒ divide up and down by 14
∴ 1372/140 = 98/10
- All the ratios between weight to mass equal 98/10
∴ 1078/x = 98/10 ⇒ by using cross multiplication
∴ 98(x) = 1078(10)
∴ 98 x = 10780 ⇒ divide both sides by 98
∴ x = 110
* The statement which describes the ratio of weight to mass and the
value of x is 98/10; = 110
The ratio of weight to mass is constant. Write the ratio of weight to mass in simplest form to represent the table. Answer: 9.8
What should the value of x be in the table? Answer 110 kilograms
13. Write an expression that shows 17 less
than five times a number.
answer for this question is 5x-17
Tomás built several towers with rectangular blocks. Which formula best represents the heights of the blocks in terms of their volumes?
Answer:
Option A
V = 15h
Step-by-step explanation:
Given in the question some information regarding the heights and volume of the towers with rectangular blocks
Formula to use
Volume = Length x Width x Height30 = Length x Width (2)
Length x Width = 30/2
Length x Width = 15
Formula best represents the heights of the blocks in terms of their volumes
V = 15h
Answer:
The correct answer is option A. 15h
Step-by-step explanation:
From the figure we can see that a table shows the relationship between heights and volume of rectangular blocks.
Heights Volume
2 15
3 45
4 60
10 150
To find the formula in terms of heights
If height = 2 then volume = 30 = 2 * 15
If height = 3 then volume = 45 = 3 * 15
If height is 'h' then volume = 15 * h = 15h
The correct answer is option A. 15h
3 to the zero power is what
Answer:
1
Step-by-step explanation:
Any number to the 0 power will always be 1.
Hope this helps ya out fam!
Welcome to Brainly btw!
~LoCoCoCo
Answer:
The answer should be 1
Step-by-step explanation:
food bill before tax:$45 sales tax:6.8% tip:24%
Answer: 58.86
Step-by-step explanation:
45(.068)= 3.06
3.06+45= 48.06
45(0.24)=10.8
48.06+10.8= 58.86
Tim Tradesman pays $2,000 annually for $150,000 worth of life insurance. Answer the following questions. a. At the end of 10 years, how much will Tim have paid in premiums? b. At the end of 10 years, what will the cash value of his policy be? c. What will the ratio of cash value to premiums paid be (as a percent)?
____________________________________________________
Explanation for question A:
We are trying to found the amount of money he payed after 10 years.
He pays an annual (yearly) of $2,000, so we would just multiply 2,000 by 10, since we are trying to find the amount he point in 10 years, in which he pays $2,000 a year.
[tex]2000*10=20000[/tex]
Answer for Question A: Tim Tradesman paid $20,000 in premiums at the end of 10 years.
____________________________________________________
Explanation for question B:
In question B, we are trying to find the cash value of the policy at the end of 10 years.
To find the cash value at the end of 10 years, we would get the units of life insurance and multiply it by the cash value per unit
There would be 150 units of life insurance.
So we multiply:
[tex]150*89=13350[/tex]
Answer for Question B: The cash value of his policy will be $13,350 at the end of 10 years.
____________________________________________________
Explanation for question C:
In question C, we are trying to find the ratio of cash value to premiums paid.
Our cash value is 13,350 and we paid 20,000.
When you subtract 20,000 and 13,350, you would get 6,650.
[tex]20000-13350=6650[/tex]
Then when you add 20,000 and 13,350, you would get 33,350.
[tex]20000+13350=33350[/tex]
When you subtract 6,650 from 33,350, you would get 26,700
[tex]33350-6650=26700[/tex]
26,700 is 66.75% of 33,350.
Answer for Question c: The ratio as a percent for the cash value to premiums paid is 66.75%
____________________________________________________
I need help, I struggle with surface area. Please provide me with the answer and why it’s that answer.
lemme turn upwards the prims a little, check the picture below.
notice the triangle has a base of 4 and a height of 3, and the prism is really just two triangles and 3 rectangles, so we can simply get the area of each figure and sum them up, and that's the area of the prism.
[tex]\bf \stackrel{\textit{two triangles}}{2\left[\cfrac{1}{2}(4)(3) \right]}+\stackrel{\textit{right-side rectangle}}{(5\cdot 6)}+\stackrel{\textit{left rectangle}}{(6\cdot 3)}+\stackrel{\textit{ground rectangle}}{(6\cdot 4)} \\\\\\ 12+30+18+24\implies 84[/tex]
The area of a square is A=s^2 where is a is length of one side of the square. What is the side length s for each square?
A). s=324 in.
B) s=<324 in.
C) s= (324)^2 in.
Answer:
(b) I think. Im sorry if this is wrong. <3
Step-by-step explanation:
A but it’s most likely B
250 female nurses to 100 male nurses what is the ratio of male nurses to female nurses
Answer:
2:5
it may be faster to google it
Answer:
Required ratio is 2:5.
Step-by-step explanation:
Given that number of female nurses = 250
Given that number of male nurses = 100
Now we need to find about what is the ratio of male nurses to female nurses.
So we just need to divide number of male nurses by the number of female nurses. That means divide 100 by 250. We get:
[tex]\frac{male}{female}=\frac{100}{250}[/tex]
[tex]\frac{male}{female}=\frac{10}{25}[/tex]
[tex]\frac{male}{female}=\frac{2}{5}[/tex]
Hence required ratio is 2:5.
If you increase your bicycle speed by 5.6 miles per hour, the speed will be 17.9 miles per hour. What is your bicycle speed now?
Answer:
12.3 mph
Step-by-step explanation:
17.9 - 5.6 = 12.3
Answer:
12.3 mph
Step-by-step explanation:
Let x be our speed now
We increase the speed by 5.6 mph
Our new speed is x+5.6
We are going 17.9 mph
x+5.6 = 17.9
Subtract 5.6 from each side
x+5.6 -5.6 = 17.9-5.6
x =12.3
Which will hold more cake batter the rectangular pan or two round pans
Answer:
I don't know the size of the pans, but I'd probably say the rectangle ones.
Step-by-step explanation:
Y'know, you have to calculate volume and all that put based on the info given rectangular pans usually hold more...although there are two round pans...please add some numbers to clarify!
Dont mind what I have wrote
Answer:
n = 10
Step-by-step explanation:
[tex]\dfrac{4^8}{(4^2)^{-3}} \div 4^4 = 4^n[/tex]
[tex]\dfrac{4^8}{4^{-6}} \div 4^4 = 4^n[/tex]
[tex]4^8 \times 4^6 \div 4^4 = 4^n[/tex]
[tex]4^{(8 + 6 - 4)}= 4^n[/tex]
[tex]4^{10}= 4^n[/tex]
[tex]n = 10[/tex]
Answer:
n = 10Step-by-step explanation:
[tex]\dfrac{4^8}{(4^2)^{-3}}\div4^4=4^n\qquad\text{use}\ (a^n)^m=a^{nm}\\\\\dfrac{4^8}{4^{(2)(-3)}}}\div4^4=4^n\\\\\dfrac{4^8}{4^{-6}}\div4^4=4^n\qquad\text{use}\ \dfrac{a^n}{a^m}=a^{n-m}\\\\4^{8-(-6)}\div4^4=4^n\\\\4^{14}\div4^4=4^n\qquad\text{use}\ a^n\div a^m=a^{n-m}\\\\4^{14-4}=4^n\\\\4^{10}=4^n\Rightarrow n=10[/tex]
The measure of a vertex angle of an isosceles triangle is 120° and the length of a leg is 8 cm. Find the length of a diameter of the circle circumscribed about this triangle.
ANSWER
The length of a Diameter is 3.714
EXPLANATION
The circumscribed triangle is shown in the attachment.
We use the cosine ratio to find the altitude of the isosceles triangle.
[tex] \cos(60 \degree) = \frac{altitude}{hypotenuse} [/tex]
[tex] \cos(60 \degree) = \frac{altitude}{8} [/tex]
Altitude =8cos(60°)
Altitude=4cm
Let the upper half of the altitude be y cm.
Then the radius of the circle is (y-4)cm
The upper radius meets the tangent at right angles.
From the smaller right triangle,
[tex] \sin(60 \degree) = \frac{4 - y}{y} [/tex]
[tex] y\sin(60 \degree) = 4 - y[/tex]
[tex]y\sin(60 \degree) + y= 4 [/tex]
[tex](\sin(60 \degree) + 1)y= 4 [/tex]
[tex]y= \frac{4}{\sin(60 \degree) + 1} [/tex]
[tex]y = 16 - 8 \sqrt{3} [/tex]
y=1.857
The diameter is 2y
[tex]d = 32 - 16 \sqrt{3} [/tex]
=2(1.875)
The length of a Diameter is 3.714
Answer:
Diameter of the circle is 16 cm.
Step-by-step explanation:
Given : The measure of a vertex angle of an isosceles triangle is 120° and the length of a leg is 8 cm.
To find : The length of a diameter of the circle circumscribed about this triangle?
Solution :
We construct a circle in which an ABC isosceles triangle is formed.
Refer the attached figure below.
The measure of a vertex angle of an isosceles triangle is 120° .
The length of a leg is 8 cm, AC=8 cm
Vertex angle is divided by the line touching the center of the circle.
So, [tex]\angle A=60^\circ[/tex] and line AD=radius of the circle
Applying property of isosceles triangle,
Now, ∠DAC=∠ACD=∠CDA=60°
AC=DC=8 cm
The radius of the circle is 8 cm.
The diameter of the circle is twice the radius.
Therefore, The diameter of the circle is d=2(8)=16 cm.
What is most likely the length of a telephone book
Answer:
its around 297mm so any choice you have there around that number choose it
Step-by-step explanation:
Given that he polynomial function below find f(-9)
Answer:
B
Step-by-step explanation:
To find the value [tex]F(-9)[/tex] of the polynomial function [tex]F(x)=-x^2-10x-2,[/tex] you have simply substitute [tex]x=-9[/tex] into the function expression (write -9 instead of x):
[tex]F(-9)=-(-9)^2-10\cdot(-9)-2\\ \\=-81+90-2\\ \\=7[/tex]
Final answer:
To find f(-9) in the given function, substitute -9 for x and evaluate by following the transformation rules.
Explanation:
We can rewrite a given function as y = f{-2(x+1)}. To find f(-9), we substitute -9 for x in the function.
This gives us f(-9) = f{-2(-9+1)}. Calculating further results in f(-9) = f{-2(-8)}.
Therefore, to find f(-9), we evaluate the function at x = -8, and the value depends on the specific function provided.
When Elyse moved last weekend, the circular glass top for an end table broke. To replace it, she bought a circular glass top with a diameter of 20 inches.
What is the approximate area of the circular glass top Elyse bought?
Answer:
A = 314 inches^2
Step-by-step explanation:
We know the diameter of the glass. We need to find the radius
d = 2r
20 = 2r
Divide each side by 2
20/2 = 2r/2
10 =r
To find the area of the glass
A = pi r^2
A = pi * 10^2
A = pi*100
A = 100 *(3.14)
= 314 in^2
Pls help meh!!!!!!!!
Answer:
Step-by-step explanation:
The clock on the left shows that there are 6 minutes needed to reach 4:00
The clock on the right shows that it is (5*7 + 1) = 36 minutes past 4:00
The time passed is 6 + 36 = 42 minutes.
What is the mode of the data?
3
5
7
8
tell me what to do bc i have 8 of them to do o3o
Answer:
5
Step-by-step explanation:
Mode means most, so it's the number you see most.
I have no idea what to do.. someone please explain??
Answer:
d = 25 inches
Step-by-step explanation:
If the figures are similar, the dimensions have to be in proportion
diameter diameter
------------- = ------------
height height
10 ft d inches
------------- = ------------
4 ft 10 inches
Using cross products
10 * 10 = 4 *d
100 = 4 d
Divide by 4
100/4 =4d/4
25 = d
d = 25 inches
Check the picture below.
bearing in mind that the large cylinder is using feet units, and thee are 12 inches to 1 foot, thus 10 feet = 120 inches.