Answer:
(a) isosceles
(b), (c) scalene
Step-by-step explanation:
The lengths of the sides can be found from the distance formula:
d = √((x2 -x1)^2 +(y2 -y1)^2)
Here, there are 9 lengths to be computed, so it is useful to let a spreadsheet or graphing calculator do it.
We find triangle (a) has two sides the same length, so it is isosceles.
The other two triangles have three different side lengths, so they are scalene.
_____
Additional comment
It is impossible to specify an equilateral triangle using rational coordinates.
Area for 10 1/4 and 10 1/2
Jesse earns 9 each time he washes a car. He wants to buy a game that costs 30 How many cars does, Jesse need to wash to earn enough money to buy the game?
Answer:
Jesse would need to wash four cars.
Step-by-step explanation:
9 times 4 is 36, so Jesse would need to wash 4 cars, and if he washed only 3 cars, you would do 9 times 3 which would get you to 27, which is too little for the game he wishes to buy.
Find the volume of the rectangular prism pictured below if LM = 25 in, LO = 28 in, and
PR = 9 in, and OR = 3 in.
P
R
M
62 in
6300 in?
248 in
3
o 2354 in
3
Answer:
B. 6300
Step-by-step explanation:
Juan leaned a 55-foot ladder against the side of a building. The base
of the ladder is 21 feet from the base of the building. The top of the
ladder is 11 feet from the top of the building. How tall is the building?
Provide an answer accurate to the nearest tenth of a foot.
11
55
21
tabel optional
PLEASE HELP ME PASS 8th GRADE
Answer:
61.8 feet to nearest tenth.
Step-by-step explanation:
USING THE PYTHAGORAS THEOREM:
55*2 = 21^2 + h^2 where h is the height of the top of the ladder from the ground.
h^2 = 55^2 - 21^2
= 2584
h = √2584
= 50.83 ft.
So the height of the building
= 11 + 50.83
= 61.83 feet.
"solve for the following trig ratios using the unit circle":
1. tan(1755 degrees)
i have no idea how to do this. like do i use estimation orrrr.???
=========================================================
Explanation:
The goal is to get that 1755 degree angle between 0 and 360, so we can refer to the unit circle later.
Subtract off 360 from this until we get to that target
1755 - 360 = 13951395 - 360 = 10351035 - 360 = 675675 - 360 = 315Or a shortcut could be
1755 - 4*360 = 315The angles of 1755 degrees and 315 degrees are coterminal. They point in the same exact direction which is directly southeast in quadrant IV.
Now use the unit circle (see below) to find that
sin(315) = -sqrt(2)/2cos(315) = sqrt(2)/2Dividing those two items and simplifying gets us
tan(315) = sin(315)/cos(315) = -1
Then we go from tan(315) = -1 to tan(1755) = -1
ANSWER THIS CORRECTLY FOR BRAINLIEST (algebra)
Answer:
v = 29647.79 cu.ft.
Step-by-step explanation:
[tex]v=\frac{4}{3} \pi r^{3}\\ r=19.2[/tex]
[tex]v=\frac{4}{3} \pi (19.2)^{3} =29,647.79 cu.ft[/tex]
Hope this helps
Answer:
29632.76 cubic feet
Explanation:
volume of sphere: 4/3 π(radius)³
Here given:
radius: 19.2 ftVolume:
4/3 π(radius)³insert values
4/3 (3.14)(19.2)³simplify
29632.7577rounded to nearest hundredth
29632.76 cm³I need helppppppp :((
Answer:
H x/10 = 18/8
Step-by-step explanation:
The fact that DE is parallel to CB means DE divides AC in the same proportion that it divides AB. This fact can be used to write a proportion to find x.
__
[tex]\dfrac{\overline{DC}}{\overline{AD}}=\dfrac{\overline{EB}}{\overline{AE}}\\\\\boxed{\dfrac{x}{10}=\dfrac{18}{8}}\qquad\text{matches choice }\textbf{H}[/tex]
_____
Additional comment
The values used in the other answer ratios are not "corresponding."
Answer:
H
Step-by-step explanation:
∠ADE is a scaled version of ∠ ABC.
So,
18:8
and
10:x
Ratios can be expressed as fractions:
[tex]\frac{8}{18}[/tex] and [tex]\frac{x}{10}[/tex].
Since the scale factor is the same,8/18 has to be the same as 10/x.
Therefore,[tex]\frac{8}{18}[/tex]=[tex]\frac{x}{10}[/tex].
Hope this helps!!!
Please mark me as brainliest!!!
This took a lot of effort.
please help due in 10 mins
Answer:
the answers is -4 for this exerxises
2.5 divided by 0.5 what would that be
Answer:
1.25
Step-by-step explanation:
1/2 of 2.5 is 1.25
Think of it as the following
250 divided by 2 is 125 because 125+125=250
Answer:
5
Step-by-step explanation:
2.5 divided by 0.5 would = 5
What is the image point of (-6, -9) after a translation left 1 unit and down 5 units?
Answer:
(-7,-14)
Step-by-step explanation:
Going left is adding a negative value, so it would be -6-1 which is -7 for the x value and going down 5 units is also a negative value so it would be -9-5 which is -14 giving you (-7,-14)
What is the discriminant of the polynomial below?
4x² + 4x+1
Discriminant means that delta=b^2-4ac
(4)^2-4(4)(1)=0
If the discriminant is equal to 0, the quadratic equation has 1 real solution.
Write the phrase as an expression.
the quotient of seven and a number p
Answer:
The quotient of seven and p
7 / p
The value of a television t years
after its purchase is modeled by the
exponential function ƒ(t) =
1500(0.83)t. Which best describes
the domain and range of this
exponential function?
Step-by-step explanation:
hope you anderstand
if that's the answer can you brainliest me please thank you
please help me with this question
This is very confusing to me
Answer:
the system is inconsistent
also ,Check the attached graph
Step-by-step explanation:
let D₁ be the line of equation 3x - 9y = 36
D₂ be the line of equation 2x - 6y = -8
In order to graph D₁ we need to find two point shot that lie on it.
→ If x = 0 , 3(0) - 9y = 36 ⇔ -9y = 36 ⇔ y = -4
Then the point C(0 , -4) lies on D₁
→ If x = 3 , 3(3) - 9y = 36 ⇔ -9y = 27 ⇔ y = -3
Then the point D(3 , -3) lies on D₁
Therefore,
D₁ is the line that connects the points C and D
Similarly,We can prove that the point she A(-4 , 0) and B(-1 , 1) lie on D₂
Then D₂ = (AB)
After graphing, we notice that D₁ and D₂ are parallel and they don’t have any point in common.
Therefore ,we say that’s the system is inconsistent
A cylinder has a radius of 11 cm. The height
is 9 cm. What is the volume of the cylinder?
Answer:
621.72
Step-by-step explanation:
The explanation is that the formula is V=2HπR
Multiply all of that and you get your answer of 621.72
How tall is Merapi in Indonesia?
A. 2,698 meters
B. 3,000 meters
C. 5,201 meters
D. 26.2 miles
PLEASE HELP ILL GIVE 20 PTS!!!! What is the measure of an angle if it is 20 less than three times it’s own supplement?
An angle's measure is 20 times less than its supplement. Determine the angle's length. supplement = 180 - x = 180 - 130 = 50 degrees
Are EFG and HIJ similar
Answer:
Angle E equals 45 degrees and angle J equals 35 degrees.
If all angles of two triangles match up with one another, then you have yourself a pair of two similar triangles.
Hope it helps, have a fantastic day.
Step-by-step explanation:
We all know from geometry that all the angles of a triangle add up to 180 degrees.
We can form the following equation:
[tex]100 + 35 + E = 180[/tex]
[tex]E[/tex] here represents the measure of angle E.
Add together like terms:
[tex]135 +E = 180[/tex]
Then subtract 135 from both sides:
[tex]E = 45[/tex]
We can, likewise, form another equation for angle J :
[tex]100 + 45 + J = 180[/tex]
Add together like terms:
[tex]145 +J = 180[/tex]
Then subtract 145 from both sides:
[tex]J = 35[/tex]
Angle E equals 45 degrees and angle J equals 35 degrees.
If all angles of two triangles match up with one another, then you have yourself a pair of two similar triangles.
11. What is the equation of the median-median line for the dataset in the table?
X Y
2 6
4 22
6 30
8 24
10 40
12 46
14 52
16 72
18 60
20 64
The equation of the median-median line for given data will be y = 3x + 10. Then the correct option is A.
What is the 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 data set in the table is given below.
X Y
2 6
4 22
6 30
8 24
10 40
12 46
14 52
16 72
18 60
20 64
For the above after dividing the above data into 3 parts of the set (3,4,3)
Then the equation of the median-median line for given data will be
y = 3x + 10
Then the correct option is A.
More about the linear system link is given below.
https://brainly.com/question/20379472
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Please help I'll give 100 points to whoever is correct
Answer:
110.5 yd²
Formula's:
Area of triangle:
1/2 × base × height
Area of rectangle:
length × width
Area of the figure:
= area of triangle + area of rectangle's
= 1/2 × 11 × 7 + 3 × 4 + 5 × 3 + 5 × 2 + 7 × 5
= 110.5 yd²
Answer:
110.5 yd²
Step-by-step explanation:
Separate the figure into 1 triangle and 3 rectangles.
(see attached image)
Area 1
Area of a triangle = 1/2 × base × height
= 1/2 × (7 + 2 + 2) × 7
= 1/2 × 11 × 7
= 38.5 yd²
Area 2
Area of a rectangle = width × length
= 3 × (5 + 2 + 2)
= 3 × 9
= 27 yd²
Area 3
Area of a rectangle = width × length
= 5 × (5 + 2)
= 5 × 7
= 35 yd²
Area 4
Area of a rectangle = width × length
= 2 × 5
= 10 yd²
Total Area
Area 1 + Area 2 + Area 3 + Area 2 = 38.5 + 27 + 35 + 10
= 110.5 yd²
Can someone answer theese questions I WILL GIVE BRAINLIST and thanks and a 5 star if they are correct
(10 times 2) + 5 times 8 =
Two polygonal regions are similar with scale factor 7. The area of the smaller region is 490 cm2. What is the area of the larger region? Explain your reasoning.
Two polygonal regions are similar with scale factor 7, if the area of the smaller region is 490 cm² then the area of the larger region would be 3430 cm²
What is an equation?An equation is an expression that shows the relationship between two or more numbers and variables.
Dilation is the increase or decrease in the size of a figure by a scale factor.
Two polygonal regions are similar with scale factor 7. The area of the smaller region is 490 cm², hence:
Area of larger region = 7 * 490 cm² = 3430 cm²
Two polygonal regions are similar with scale factor 7, if the area of the smaller region is 490 cm² then the area of the larger region would be 3430 cm²
Find out more on equation at: https://brainly.com/question/2972832
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Each of 5 students reported the number of movies they saw in the past year. This is what they reported.
20, 15, 6, 5, 18
Find the mean and median number of movies that the students saw.
If necessary, round your answers to the nearest tenth. Mean: _movies
Median: _movies
Answer:
Step-by-step explanation:
For the mean you add all the numbers up and divide it by how many numbers there are (hence why it's the meanest!)
For the median you need to arrange the number in order of value/size and fine the middle number
Find the slope of the line passing through the pairs of points. (-11. - 11) and (10,- 1)
Answer:
the slope is [tex]\frac{10}{21}[/tex]
Step-by-step explanation:
slope formula for linear equations:
[tex]\frac{y_2 - y_1}{x_2 - x_1}[/tex] so for the two points [tex]\frac{-1 - (-11)}{10 - (-11)}[/tex] [tex]= \frac{10}{21}[/tex]
A bag contains 5 red marbles, 10 white marbles, and 9 blue marbles. You draw 3 marbles out at random, without replacement. What is the probability that all the marbles are red?
Answer:
5/24
Step-by-step explanation:
Number of red marbles = 5Number of white marbles = 10Number of blue marbles = 9Total number of marbles = 24P(getting red marbles) = (Number of red marbles)/(Total number of marbles)P(getting red marbles) = 5/247th Grade: Daily Tre Seventh Grade Wee.
Emma Collaborativ
A
Emmas portfolio G Create Your "My Wob Boom Cards
Interpret Charts to
Problems
10
Lois made a dish with 63 cups of pasta. One serving of the pasta is 0.3 cups. How many servings of pasta were in the dish Lois
made?
OA. 6
OB. 6
OC. 213
Answer:
It should be 210, but that option isn't on here
Step-by-step explanation:
63 cups / 0.3 cups per serving = 210 servings
Answer:
C. 213?
Step-by-step explanation:
Not sure as you might've just copied and pasted in correctly as I do see you copied the bit where it says "Emma portfolio" and both A and B are both 6, as the answer. But 63/0.3 would give you 210 servings. So I'm not sure where the 3 extra servings are coming from.
Identify the slope and y-intercept of the line whose equation is given. Write the y-intercept as an ordered pair. (Remember the slope-intercept form is y = m x + b)
y = StartFraction 5 Over 6 EndFraction + StartFraction x Over 3 EndFraction
a.
slope = Negative StartFraction 5 Over 6 EndFraction; y-intercept (0, One-third)
b.
slope = Five-sixths; y-intercept (0, One-third)
c.
slope = Negative one-third; y-intercept (0, Five-sixths)
d.
slope = One-third; y-intercept (0, Five-sixths)
The slope of the given linear equation is 1/3 and the y-intercept will be 5/6. Then the correct option is D.
What is the slope?The slope is the ratio of rising or falling and running. The difference between the ordinate is called rise or fall and the difference between the abscissa is called run.
Identify the slope and y-intercept of the line whose equation is given. Write the y-intercept as an ordered pair.
The linear equation is given below.
[tex]\rm y =\dfrac{5}{6} + \dfrac{x}{3}[/tex]
Then the slope of the equation will be 1/3.
And the y-intercept will be 5/6.
More about the slope link is given below.
https://brainly.com/question/3605446
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Answer:
d
Step-by-step explanation:
Ben tracked the attendance in his class over a period of time and recorded the data in a frequency table.
Create a dot plot for the data in the table. Hover over each number on the number line. Then click and drag up to create the dots
A dot plot for the attendance in Ben's class over a period of time is shown in the image attached below.
What is a dot plot?A dot plot can be defined as a type of line plot that is used to graphically represent a data set above a number line, especially through the use of dots.
In this scenario, a dot plot for the attendance in Ben's class over a period of time would be plotted as shown in the image attached below.
Read more on dot plots here: https://brainly.com/question/18466974
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