Help please!!! Best answer will get brainliest!!!
perimeter of triangles. i really need help!
Answer:
1) P=49
A=187
2)P=59
A=221
3)P=32
A=96
4)P=132
A=660
5)P=42
A=130
6)P=34
A=24
Step-by-step explanation:
area of a triangle is bh/2
perimeter is s1+s2+hypotenuse (add all sides)
side note: number 6, i don't know if that is right. It makes no sense.
side note: I don't know if you wanted perimeter and area for all triangles included triangles inside triangles or just the big triangles so... If I got it wrong sorry. I just did perimeter and angle for the big triangles.
In a class test, Jumbo scored 20% more than Mambo and Mambo scored 10% less than Rambo. If Rambo scored 100 marks then what is the score of Jumbo?
Answer:
i didnt mean to answer this question
Step-by-step explanation:
can some one teache me the steps to do sqaure root i cant understand it
Answer:
It's easy.
Step-by-step explanation:
The square root of something is just the reverse of some squared.
For example, if you do 3 to the power of 2 (3^2) you get 9. now if you reverse that you would do square root. [tex]\sqrt{9}[/tex] would be 3. Think of it like multiplication and division. If you do 10*5 you get 50. All you have to do is reverse it after that 50/5 = 10. See.
The only difference it square(2) root and squared(2) are only with the number 2. Meaning you can't do 3 to the power of 3 (3^3) and expect to square root it to get the reverse. For example, 3 to the power of 3 (3^3) is 27. But the square root of 27 is NOT 3, it is 5.2
You get it?
Which is the graph of the system of equations?
2x - 3y = 12
4x - y = 8
YA
1
-
6
-21
The solution of the linear system is (1.2, -3.2). Then the correct option is A.
What is linear system?A linear system is one in which the parameter in the equation has a degree of one. It might have one, two, or even more variables.
The system of the equations is given below.
2x - 3y = 12 ..1
4x - y = 8 ..2
By solving the equations 1 and 2. Then we have
x = 1.2 and y = -3.2
Then the correct option is A.
The graph of the system of the equation is given below.
More about the linear system link is given below.
https://brainly.com/question/20379472
#SPJ2
Suppose that your drawer contains 8 AAA batteries but only 6 of them are good. If you randomly select 4 batteries what is the probability all 4 will work ?
Answer:
Step-by-step explanation:
[tex]P=\frac{6}{8} \times\frac{5}{7} \times\frac{4}{6} \times\frac{3}{5} =\frac{3}{14}[/tex]
Step-by-step explanation:
the probability of the 4 batterys work was %30 because if you take randomly 4 battery you take good and bad batterys and the most probability is the 4 batterys don't work or the 4 batterys work or like 1 or 2 batterys work thats why like %30 the batterys work
Help please i dont know how to do it
Answer:
14 is D but I don't 15 question answer
need help please finding x
9514 1404 393
Answer:
x = 7
Step-by-step explanation:
Corresponding segments are proportional.
x/8 = 21/24
x/8 = 7/8 . . . . reduce the fraction
x = 7 . . . . . . . multiply by 8
You are at the top of a lighthouse that is 500 ft tall. You look down towards the ocean and see a boat located 800 ft. from the shore.
a) What is the angle of depression from your position to the boat? Round to the nearest whole number.
b) If the boat travels away from the lighthouse an additional 1000 feet, what is the angle of depression from your position to the boat? Round to the nearest whole number.
C) By how many degrees did your line of sight change.
Answer:
a) 32° (nearest whole number)
b) 16° (nearest whole number)
c) 16.5° (1 d.p.)
Step-by-step explanation:
Please see the attached picture for the full solution.
X + 2Y - 3Z = 11
3X + 2Y + Z = 1
2X + Y - 5z = 11
Answer:
X=-1
Y=3
Z=-2
Step-by-step explanation:
X=-1
Y=3
Z=-2
Solve the linear equation .15x+4 = 19.
Answer:
x=1
Step-by-step explanation:
Suppose you have two rectangular prisms with dimensions 2 feet by 3 feet by 5 feet. You want to join the prisms together to form a larger rectangular prism. Which faces should you join if you want to make a prism with the least possible surface area?
Carson has a package to mail the package is 87 inches Long the shipping company only Mail Packages that are up to seven feet long can Carson mail the package show your work and add complete sentences to your answer. ASAP PLS
Answer:
Carson can't mail the package
The reasoning for why he can't mail it is because in every foot there is 12 inches and if u multiply 12 by 7 you get 84 meaning Carson's package is larger then 7ft
Packaging and Branding; Your Small Business Shipping Strategy; 5 Ways ... Download the complete in-depth, 16 chapter guide. ... USPS offers cubic pricing for Priority Mail shipments
Please mark me as brainlistDuring one month, there were 2,000 people who used the advertiser links on a website. The percent of people who clicked on each
advertisement link is shown in the circle graph. Calculate the number of people who clicked on the link for each type of advertisement. How
many people used the Music link?
Advertiser Links
Computers
2396
Music
25%
TVS
3%
Movies
1796
Cell phones
32%
340
450
500
540
Answer:
500
Step-by-step explanation:
During one month, there were 2,000 people who used the advertiser links on a website. The percent of people who clicked on each
advertisement link is shown in the circle graph. Calculate the number of people who clicked on the link for each type of advertisement. How
many people used the Music link?
Advertiser Links
Computers
2396
Music
25%
TVS
3%
Movies
1796
Cell phones
32%
340
450
500
540
Then You Turn The Music Percent Into A Decimal Which Is .25% Then Times That By 2000 And You Get .25 X 2000 = 500
What is the slope of the line that passes through the points
(
9
,
4
)
(9,4) and
(
9
,
−
5
)
?
(9,−5)? Write your answer in simplest form.
We are given:
The line passes through the points (9,4) and (9,-5)
We know that:
Slope of a line = (change in y) / (change in x)
Finding the slope:
Change in x = final x - initial x
Change in x = 9 - 9 = 0
Slope of line = (change in y) / 0
because division by 0 is undefined:
Slope of the line is Undefined
We could've solved for the change in y but there's no reason to because no matter what's in the numerator, as long as the denominator is 0, the value is undefined
g A random sample of 100 students was taken. Eighty-five of the student in the sample experienced anxiety during the exam. We are interested in determining whether or not the proportion of the student who experience anxiety during the exam is significantly more than 80%. The test statistic is
Answer:
The test statistic is [tex]z = 1.25[/tex]
Step-by-step explanation:
We are interested in determining whether or not the proportion of the student who experience anxiety during the exam is significantly more than 80%.
At the null hypothesis, we test if the proportion is 80%, that is:
[tex]H_0: p = 0.8[/tex]
At the alternate hypothesis, we test if the proportion is more than 80%, that is:
[tex]H_a: p > 0.8[/tex]
The test statistic is:
[tex]z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}[/tex]
In which X is the sample mean, [tex]\mu[/tex] is the value tested at the null hypothesis, [tex]\sigma[/tex] is the standard deviation and n is the size of the sample.
80% is tested at the null hypothesis:
This means that [tex]\mu = 0.8, \sigma = \sqrt{0.2*0.8} = 0.4[/tex]
A random sample of 100 students was taken. Eighty-five of the student in the sample experienced anxiety during the exam.
This means that [tex]n = 100, X = \frac{85}{100} = 0.85[/tex]
The test statistic is
[tex]z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}[/tex]
[tex]z = \frac{0.85 - 0.8}{\frac{0.4}{\sqrt{10}}}[/tex]
[tex]z = 1.25[/tex]
The test statistic is [tex]z = 1.25[/tex]
Simplify the expression. 4√ 6+ 5√6
Answer:
9√6
Step-by-step explanation:
4√6+5√6
=(4+5)√6
=9√6
which one is right please help
The function graphed to the left is function. The curve has and continues infinitely in one direction. Each y-value is each corresponding x-value.
Answer:
1. A square root
2. one distinct endpoint
3. The square root of
on edg
have a nice day! :)
Step-by-step explanation:
1. The function graphed to the left is function. A square root
2. The curve has and continues infinitely in one direction.
one distinct endpoint
3. Each y-value is each corresponding x-value. the square root of
what is square root function?The principal square root function. (usually just referred to as the "square root function") is a function that maps the set of nonnegative real numbers onto itself.
1. A radical function contains a radical expression with the independent variable (usually x) in the radicand. Usually radical equations where the radical is a square root is called square root functions.
The graph shown is known as the graph for square root functions.
2. The curve has one distinct end point and continues infinitely in one direction.
3. The square root of each corresponding x-value.
Each value of y is the corresponding square root of x- values.
Learn more about this concept here:
https://brainly.com/question/14231651
#SPJ2
Solve equation by using the quadratic formula.
6x² – 2x=8
Answer:
D
Step-by-step explanation:
Peter was in a line. There were twice as many students in front of him as behind him. Students (more than 3 but fewer than 9) left the line but Peter did not. Then twice as many students were behind Peter as in front. How many students left the line?
Answer:
6 people left
Step-by-step explanation:
4 behind him 8 infront 6 left from infront leaving 4 behind 2 infront
Answer:
6 studentsExplanation:
x = the number of students in front of peter
y = the number of students behind peter
z = the number of students who left, for 3 < z < 9 ∴ z ∈ {4, 8}
system of equations:
x = 2y2(x-z) = y (assuming that the students who left were all among the students who are in front of peter)x = 2y ⇒ y = x/2 (defining y with x)
2(x-z) = y (lets substitute y)
2(x-z) = x/2
2x-2z = x/2
2(2x-2z) = x
4x-4z = x
4x-x = 4z
3x = 4z
if z = 6 (i pluged the numbers from 4 to 8)
then
3x = 4×6
3x = 24
x = 24/3
x = 8
∴ y = 4
8 students were in front of peter and 4 were behind him
6 left
now 2 students are in front of peter and 4 are behind him
8 is twice 4
8-6 = 2
4 is twice 2
I just need some help with this problem I can show the other graph and pictures in the comments
Answer:
Please show the full picture so I can answer
Step-by-step explanation:
Shirts are 50% off. The original price of one shirt is $60. dollars, of two shirts, at the sale price, including a 10% sales tax
Answer:
I guess, you are asking how much two shirts are costing now.
the answer is $66
Step-by-step explanation:
sales tax is always calculated from the actual sales price (and never from a list price or so).
so, the discount is 50%.
=> a shirt now costs only $30 (instead of $60).
50/100*60 = $30
now, sales tax is calculated from these $30.
=> 10% of $30 is $3
10/100*30 = $3
therefore, a single shirt costs now $30+$3 = $33 incl. sales tax.
two shirts cost therefore 2 * $33 = $66
Kyle boards a Ferris wheel at the 3-o'clock position and rides the Ferris wheel for multiple revolutions. The Ferris wheel rotates at a constant angular speed of 5 radians per minute and has a radius of 40 feet. The center of the Ferris wheel is 47 feet above the ground. Let t represent the number of minutes since the Ferris wheel started rotating.
Required:
Write an expression (in terms of t) to represent the varying number of radians θ Ryan has swept out since the ride started.
Answer:
a) The expression for the change in angular position is [tex]\theta = 5\cdot t[/tex].
b) The expression for the height of Ryan regarding the center of the Ferris wheel is [tex]H(t) = 40\cdot \sin (5\cdot t)[/tex].
c) The expression for the height of Ryan above the ground is [tex]H(t) = 40\cdot \sin (5\cdot t) + 47[/tex].
Step-by-step explanation:
The statement is incomplete. Complete form is introduced below:
Kyle boards a Ferris wheel at the 3-o'clock position and rides the Ferris wheel for multiple revolutions. The Ferris wheel rotates at a constant angular speed of 5 radians per minute and has a radius of 40 feet. The center of the Ferris wheel is 47 feet above the ground. Let t represent the number of minutes since the Ferris wheel stated rotating.
a) Write an expression (in terms of t) to represent the varying number of radians [tex]\theta[/tex] Ryan has swept out since the ride started.
b) Write an expression (in terms of t) to represent Ryan's height (in feet) above the center of the Ferris wheel.
c) Write an expression (in terms of t) to represent Ryan's height (in feet) above the ground.
a) Let suppose that Ferris wheel rotates counterclockwise. As the Ferris wheel rotates at constant rate, this kinematic expression can be used to determine the change in angular position ([tex]\theta[/tex]), in radians:
[tex]\theta = \omega \cdot t[/tex] (1)
Where:
[tex]\omega[/tex] - Angular velocity, in radians per minute.
[tex]t[/tex] - Time, in second.
If we know that [tex]\omega = 5\,\frac{rad}{min}[/tex], then the expression for the change in angular position is [tex]\theta = 5\cdot t[/tex].
b) Geometrically speaking, Ryan's height with respect to the center of the Ferris wheel is described by the following formula:
[tex]H(t) = r \cdot \sin (\omega\cdot t)[/tex] (2)
Where:
[tex]r[/tex] - Radius of the Ferris wheel, in feet.
[tex]H(t)[/tex] - Height of Ryan with respect to the center of the Ferris wheel, in feet.
If we know that [tex]\omega = 5\,\frac{rad}{min}[/tex] and [tex]r = 40\,ft[/tex], then the expression for the height of Ryan regarding the center of the Ferris wheel is [tex]H(t) = 40\cdot \sin (5\cdot t)[/tex].
c) We use the following geometric expression to model Ryan's height above the ground:
[tex]H(t) = r\cdot \sin (\omega\cdot t) +h_{o}[/tex] (3)
Where [tex]h_{o}[/tex] is the height of the center of the Ferris wheel above the ground, in feet.
If we know that [tex]h_{o} = 47\,ft[/tex], [tex]\omega = 5\,\frac{rad}{min}[/tex] and [tex]r = 40\,ft[/tex], then the expression for the height of Ryan above the ground is [tex]H(t) = 40\cdot \sin (5\cdot t) + 47[/tex].
g(r) r²6r 55 1) What are the zeros of the function? Write the smaller r first, and the larger r second. smaller r = larger r = 2) What is the vertex of the parabola?
Answer:
smaller r = -8
larger r = 2
vertex of the parabola
(-8,2)
Step-by-step explanation:
Mrs. Wigen conducted a survey in her math class. She asked each of her students to tell her how many pets they have at home. The dot plot below represents the results of Mrs. Wigen's math class survey. 12-----3 4:25 Number of pets at home Find the Measures of Center for the data: Mean Round to the nearest tenths place Median Mode
Answer:
4 : 25 to round off we have to see that
4 : 25 to round off we have to see that If in ones place it is more than 5 or not
4 : 25 to round off we have to see that If in ones place it is more than 5 or not if yes we will add to 1 no to tenths place
4 : 25 to round off we have to see that If in ones place it is more than 5 or not if yes we will add to 1 no to tenths place Finally 4 : 25 it has 5 in its ones place
So the answer will be 4 : 30Can somebody please help in this question?
First find the area of one side.
The area of the side of a cube is s^2 where s is the length if one edge.
The edge length is given as 2/3, so the area of a side is 2/3^2 which is equal to 2/3 x 2/3 = 4/9 square units.
A cube has 6 sides so now to find the surface area of the cube multiply the area of one side by 6 sides:
4/9 square units x 6 = (4 x6)/9 = 24/9 which can be rewritten as 2 2/3 square units
The answer is 2 2/3 units^2
In an early home game, an NBA team made 70.21 percent of their 94 free throw attempts. In one of their last home games, the team had a free throw percentage equal to 76.4 percent out of 89 attempts. Did the team significantly improve its free throw percentage
Answer:
The team scored more free throws in fewer attempts (68 versus 66) and, furthermore, if the same amount of free throws had been attempted, the number of hits with that percentage would be 72. Therefore , it can be stated that the team significantly improved its free throw percentage.
Step-by-step explanation:
Given that in an early home game, an NBA team made 70.21 percent of their 94 free throw attempts, and in one of their last home games, the team had a free throw percentage equal to 76.4 percent out of 89 attempts, to determine if the team significantly improved its free throw percentage, the following calculation must be performed:
100 = 94
70.21 = X
70.21 x 94/100 = X
66 = X
100 = 89
76.4 = X
76.4 x 89/100 = X
68 = X
100 = 94
76.4 = X
76.4 x 94/100 = X
72 = X
Therefore, at first glance, the team scored more free throws in fewer attempts (68 versus 66) and, furthermore, if the same amount of free throws had been attempted, the number of hits with that percentage would be 72. Therefore , it can be stated that the team significantly improved its free throw percentage.
Describe how you can make the line of best fit. Write the approximate slope and y-intercept of the line of best fit. Show your work, including the points that you use to calculate the slope and y-intercept.
Answer:
Step-by-step explanation:it’s c
Solve the inequality:
5x - 7 ≥ 3x + 9
Answer:
x≥8
Step-by-step explanation:
Answer:
x ≥ 8
Step-by-step explanation:
Subtract 3x from both sides:
2x - 7 ≥ 9
Then add 7 to both sides:
2x ≥ 16, or
x ≥ 8