Answer:
I am expecting that 24.31 I am guessing
100Pts fast plz
A triangular pen is modeled by △ABC. The vertices of △ABC are A(0, 8), B(12, 3), and C(7, –9). What is the area of the pen?
Answer:
The area of the triangle is 84.511 square units.
Step-by-step explanation:
First step, we need to calculate lengths of line segments AB, BC and AC by Pythagorean Theorem:
AB:
[tex]AB = \sqrt{(12-0)^{2}+(3-8)^{2}}[/tex]
[tex]AB = 13[/tex]
BC:
[tex]BC = \sqrt{(7-12)^{2}+(-9-3)^{2}}[/tex]
[tex]BC = 13[/tex]
AC:
[tex]AC = \sqrt{(7-0)^{2}+(-9-8)^{2}}[/tex]
[tex]AC \approx 18.385[/tex]
Now, we can determine the area of the triangle ([tex]A[/tex]) by Heron's formula:
[tex]A = \sqrt{s\cdot (s-AB)\cdot (s-BC)\cdot (s-AC)}[/tex] (1)
[tex]s = \frac{AB+BC+AC}{2}[/tex] (2)
Where [tex]s[/tex] is the semiperimeter of the triangle.
If we know that [tex]AB = 13[/tex], [tex]BC = 13[/tex] and [tex]AC \approx 18.385[/tex], then the area of the triangle is:
[tex]s = 22.193[/tex]
[tex]A = 84.511[/tex]
The area of the triangle is 84.511 square units.
What is the sum of the measures of the interior angles of a 20-sided figure?
Enter your answer in the box.
__°
The sum of the measures of the interior angles of a 20-sided figure is 3240.
What are Interior angles ?
An interior angle of a polygon is an angle that is created between two of the polygon's adjacent sides. The interior angle of a polygon is also known as the angle measured at the interior of a polygon.
the number of sides of given polygon is 20.
we know that, sum of the measures of the interior angles can be found by using formula : (n-2) × 180
where n= no. of sides of given polygon
So, sum of the measures of the interior angles of 20 sided figure :
= (n-2) × 180
= (20-2) × 180
= 18 × 180
= 3240 .
To learn more about Interior angles, visit the link :
https://brainly.com/question/24966296
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PLEASE HELP ILL GIVE BRAINLIEST AND 20 POINTS!!!!!
The 8th grade is holding a fundraiser to raise money for an end of the y ear party. They are selling T-shirts and Caps to raise money. They make $15 profit from each T-shirt and $5 profit from each hat. Their goal is to raise $900.
Part A: Write and equation that represent this situation.
Part B: Find 3 combinations of shirts and caps that will achieve their goal of raising $900.
A CORRECT ANSWER WILL HAVE 4 PARTS!
For each t-shirt sold, which I'll call t, 8th grade makes $15.
For each hat sold, which I'll call h, 8th grades makes $5.
They want to raise $900
A: The equation to represent this situation is 15t+5h=900 because if 8th grade adds up all the profits from both hats and t-shirts, the goal is to make $900, so the total profit from shirts and hats should equal 900 dollars.
B: I'm just going to choose random numbers. Let's say nobody wanted to buy a hat from the 8th graders (h=0). You'd end up with
15t+5(0)=900
15t=900
t=60 - If they sold 0 hats they would have sold 60 shirts to raise $900
Now let's say it was the other way around - nobody wanted to buy t-shirts
15(0)=5h=900
5h=900
h=180 - If they sold 0 t-shirts they'd have to sell 180 hats to raise $900
Finally let's say they sold 30 t-shirts
15(30)+5h=900
450+5h=900
5h=450
h=90 - They'd have to sell 30 t-shirts and 90 hats to raise $900
This afternoon Ariana left, rode the bus 3/4 of a mile, and then walked 1/2 of a mile to get home. How much farther did Ariana ride than walk
What are the coordinates of B’ if Triangle ABC is reflected over the x-axis?
Answer:
the coordinates of b if it is reflected over the x-axis (-2,5)
Please help me with this I need to know
Answer:Just multiply Step-by-step explanation:do 12x10x20=2,400
Last season, two running backs on the Steelers
football team rushed for a combined total of
1550 yards. One running back ran for 450 yards
more than the other. How many yards did they
each run?
Answer:
Step-by-step explanation:
Last season two running backs on the Steelers football team rushed a combined total of 1550 yards. One rushed 4 times as many yards as the other. Let x and y represent the number of yards each individual player rushed. this is the equation that was used
x + y = 1550
y = 4x
Pleaseeee helpppp it’s due in 6 minutes helpp!! Explain
Answer:
I might be wrong but since ur in a rush: 173
Step-by-step explanation:
Answer:
287.25 miles in 5.75 hours
Step-by-step explanation:
so he was first driving at 48mph because 168/3.5=48
5 miles per hour faster than that is 53mph
53*2.25=119.25
then we add 119.25 and 168
From which types of data display can the number of observations in a data set be determined?
A. Dot plot
2. Box plot
3. Histogram
Find the surface area of the right triangular prism (above) using its net (below).
units
Answer:
120 units^2
Step-by-step explanation:
(12)(5)(0.5)(2) + (12)(2) + (13)(2) + (5)(2) = 120 units^2
HELP ME WALLAHI THIS IS HARD WALLAHI HELP ME
Answer: It’s C
Step-by-step explanation:
How many sides are on a hexahectaenneacontakaiheptagon?
A. 697
B. 640
C. 546
E. a hexahectaenneacontakaiheptagon is not a real polygon
Answer:
E
Step-by-step explanation:
I have never heard of it in my entire life.
Answer and Step-by-step explanation:
A is the correct answer.
The shape called hexahectaenneacontakaiheptagon has 697 sides.
#teamtrees #PAW (Plant And Water)
Simplify the fraction 84/96.
Answer:
7/8
Step-by-step explanation:
U have to use the highest common factor and the lowest common denominator
Answer:
[tex] \frac{7}{8} = 0.875 [/tex]
Step-by-step explanation:
devide the numerator and denumerator by nine
HELP ME NOW
04 Fill in the blank Drag and Drop
Raven has driven 90 miles, which represents 30% of the total distance she diving
What is the total distance Raven is driving, and how many miles does she have left to drive
Drag a number into each box to complete the sentences
Raven is driving a total distance of
miles. She has
miles left to die
11 27
11 30
11 63
1 90
11 117
11 210
11 300
11990
Answer:
its blurry
Step-by-step explanation:
What is Fourteen less than seven times a number is 15
Answer:
29/7 or 4 1/7
Step-by-step explanation:
Let x be the unknown number.
7 times a number is 7x,
and then 14 less than that would be 15.
7x-14=15
Now simplify by adding 14 and dividing by 7
7x=29
x=29/7 or 4 1/7
I need help to do this dont know how to do!
Answer:
Step-by-step explanation:
Even I need help with that
Six friends together with their respective partners all meet up for a meal. To commemorate the occasion, they arrange for a photograph to be taken of all 12 of them standing in a line.How many different arrangements are these if each friend is standing next to his or her partner?
Answer:
1440 different arrangements are possible.
Step-by-step explanation:
Number of arrangements of n elements:
The number of arrangements of n elements is given by:
[tex]A_{n} = n![/tex]
In this question:
6 couples, in which each can be positioned in 2 ways(him/her or her/him). So
[tex]T = 2A_{6} = 2*6! = 1440[/tex]
1440 different arrangements are possible.
A single die is rolled once. Find the probability of rolling a number less than 7.
Answer:
1/6
Step-by-step explanation:
The die is rolled once, so it is 1 out of the total number on the die ie 6, as a die has only faces or sides so its obvious out of these 6 faces only one will show.
I DONT WANT HOW TO DO IT JUST THE ANSWER
Answer:
87.5
Edited: Yea should be 56, misread it LOL.
Appoligise to that silly mistake
Step-by-step explanation:
what value of x makes the equation true
-(8x+3)=-23-3x
Answer:
x = 4
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtraction Property of EqualityAlgebra I
Terms/CoefficientsFactoringStep-by-step explanation:
Step 1: Define
-(8x + 3) = -23 - 3x
Step 2: Solve for x
Factor GCF: -(8x + 3) = -(23 + 3x)[Division Property of Equality] Divide -1 on both sides: 8x + 3 = 23 + 3x[Subtraction Property of Equality] Subtract 3x on both sides: 5x + 3 = 23[Subtraction Property of Equality] Subtract 3 on both sides: 5x = 20[Division Property of Equality] Divide 5 on both sides: x = 4HelllpFind an equation of a line that contains the points (-3,-1) and (2,-2). Write the equation in slope-intercept form.
Answer:
y = -1/5x -8/5
Step-by-step explanation:
(-3,-1) and (2,-2)
m=(y2-y1)/(x2-x1)
m = ( -2 + 1)/(2 + 3)
m = (-1)/(5)
m = -1/5
y - y1 = m(x - x1)
y + 1 = -1/5(x + 3)
y + 1 = -1/5x -3/5
y = -1/5x -8/5
Which expression is NOT equivalent to -6 x (1/3 + 1/3)
A. -6/3 + 1/3
B. -6 x 2/3
C. -6 x (2x 1/3)
D.(1/3 + 1/3) x (-6)
If a price increases by 16%, what number can we multiply the old price by to get the new price?
Answer:
Multiply by 1.16
Step-by-step explanation:
Answer:
Multiply it by 0.16
Mr Kinney biology class completed a lab to determine blood type. The results are reported in the frequency table. What is the relative frequency of a student having o type blood? 0.1 0.2 0.3 0.4
Answer:
o . ooo 2 and dr 45009.7 ok byy
.What is the value of the expression: -4+65
Answer:
+61
Step-by-step explanation:
Answer:
61
Step-by-step explanation:
Please mark as brainliest!
Mr Mazibuko monthly salary before tax is R12 700 what will be his salary after paying 11% tax
Answer:
R11 303
Step :
Find 11% of R12 700
R12 700 × 11/100
=R1 397
then substract the 11% from R12 700
R12 700 - R1 397
=R11 303
Helpppp!!
What is the value of x and y?
Answer:
x=8 and y =40
Step-by-step explanation:
this is the answer
Element X is a radioactive isotope such that its mass decreases by 67% every year. If
an experiment starts out with 740 grams of Element X, write a function to represent
the mass of the sample after t years, where the daily rate of change can be found
from a constant in the function. Round all coefficients in the function to four decimal
places. Also, determine the percentage rate of change per day, to the nearest
hundredth of a percent.
Answer:
Step-by-step explanation:
X is mass which I s decrease. If you have 740 grams of element x and you add the function.per the rate day you will have a hundredth percent.
Answer:
f(t)=740(0.9970)^365t
0.30% decrease per day
half the sum of 8 and r
Which which book did Khaptad swami written?
Step-by-step explanation:
The Science of Thought is the book