8) What is the area of a polygon with vertices
A(-2,4), B(4,4), C(7,0) and D(-5,0)?
(A) 48
(B) 42.5
(C) 36
(D) 24
Answers
Answer:
[C] 36.
Step-by-step explanation:
the given polygon is trapezoid, where its bases are AB and CD.
The required area can be calculated using the formula: A=0.5(AB+CD)*h, where h - height of the ABCD.
The lengths are: AB=6; CD=12; h=4, then the required area:
A=0.5(6+12)*4=36
Related Questions
1) In how many ways can a girl choose a two-piece outfit from 9 blouses and 8 skirts?
A) 17
B) 19
C) 144
D) 72
Answers
The total number of ways a girl can choose a two-piece outfit from 9 blouses and 8 skirts is 72.
What is permutation?Permutation is a mathematical calculation of the number of ways a particular set can be arranged, where order of the arrangement matters.
Permutation Formula[tex]^{n} P_{r} = \frac{P!}{(n-r)!}[/tex]
Where,
[tex]^{n}P_{r}[/tex] is permutation
n is the number of objects
r is the number of objects selected.
According to the given question.
Total number of blouses = 9
Total number of skirts = 8
So,
the number of ways of choosing one blouse from 8
=[tex]^{8} P_{1}[/tex]
= [tex]\frac{8!}{(8-1)!} \\[/tex]
= [tex]\frac{8!}{7!}[/tex]
= [tex]\frac{8\times 7!}{7!}[/tex]
= [tex]8[/tex]
And the number of ways of choosing one skirt from 9
[tex]^{9} P_{1} \\= \frac{9!}{(9-1)!} \\= \frac{9\times 8!}{8!} \\=9[/tex]
Therefore,
The total number of ways of choosing two piece outfit from 9 blouses and 8 skirts
= [tex]^{8} P_{1} \times ^{9} P_{1}[/tex]
= [tex]8 \times 9[/tex]
[tex]= 72[/tex]
Hence, the total number of ways a girl can choose a two-piece outfit from 9 blouses and 8 skirts is 72.
Find out more information about permutation here:
https://brainly.com/question/1216161
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what is the height if a painting is 1 centimeters and represents as 9 inches
Answers
Answer:
The height of the real painting is 36 inchesA can of green beans cost $1.29 but goes on
sale for $0.79. What was the sale on the green
beans?
Plz help!!!
Answers
Answer:
≈ 38.76%Step-by-step explanation:
Given:
Cost = $1.29Sale = $0.79Sale percent is:
(1.29 - 0.79)/1.29*100% ≈ 38.76%solve pls brainliest
Answers
Answer:
x = 6.4
Step-by-step explanation:
Step 1: Divide both sides by 4.
[tex]\frac{4x}{4}=\frac{25.6}{4}[/tex] [tex]x = 6.4[/tex]Step 2: Check if solution is correct.
[tex]4(6.4)=25.6[/tex] [tex]25.6=25.6[/tex]Therefore, x = 6.4.
Answer:
4x = 25.6
4x = 256 / 10
x = 256 / (10×4)
x = 64 / 10 (256 ÷ 4 = 64)
x = 6.4
so, answer is 6.4 .
Step-by-step explanation:
brainliest plz
there are 9 acorns in each pile. there are 8 piles. how many acorns are there in all? write an equation that can be used to solve this problem
Answers
Answer:
72 acorns.
Step-by-step explanation:
9 (acorns per pile)
*
8 (piles)
Answer:
9x8=72 making the answer 72 acorns in total.
Kiran has 27 nickels and quarters in his pocket, worth a total of $2.75.
a. Write a system of equations to represent the relationships between the
number of nickels n, the number of dimes d, and the dollar amount in
this situation.
Answers
Answer:
[tex]\begin{cases}n+d = 27\\0.05n+0.10d = 2.75\\\end{cases}[/tex]
====================================================
Explanation:
n = number of nickels
d = number of dimes
The n and d are placeholders for positive whole numbers.
Since we have 27 coins, we know that n+d = 27. The two subcounts must add to the grand total of 27. That explains how the first equation is set up.
The second equation is set up by looking at the dollar amount each group of coin brings in.
0.05n = amount of money in dollars the nickels bring in
0.10d = amount of money in dollars the dimes bring in
0.05n+0.10d = total amount of money in dollars = 2.75
The single curly brace to the left of the equations tells the reader we're dealing with a system of equations. The equations are tied together.
solve pls brainliest
Answers
Answer:
white
4 were sold
3 more gray were sold than white
3 colors sold 10 or more
Answer:
a) White
b) 3
c) 3
Step-by-step explanation:
a) White as it is the shortest bar (has the lowest height and only has 4 t-shirts sold)
b) According to the bar graph, 7 grey t-shirts were sold and 4 white t-shirts were sold. Subtracting 4 from 7 = 7-4 = 3
Hence, 3
c) At least 10 T-shirts sold, suggests that it was greater than or equal to 10. According to the graph, black has 12, tan has 11, and brown has 10. Hence,
3 colors had at least 10 t-shirts sold.
Hope this helps and be sure to have a wonderful time ahead at Brainly! :D
Feel free to mark this as brainliest!
You have at most $20 to spend at an arcade. Arcade games cost $0.75 each, and snacks cost $2.25 each. Write an inequality that represents the numbers of games (x )you can play and snacks( y) you can buy.
The inequality is ??
Answers
Answer:
y ≤ -1/3x+80/9
Step-by-step explanation:
(1). 0.75(x)+2.25(y) ≤ 20
0.75 - Number of arcade games (X).
2.25 - Number of snacks (Y).
20 - The total.
(2). 0.75x+2.25y≤20
(After multiplying the x's and y's together, with the numbers).
(3). 0.75x (-0.75x) + 2.25y ≤ 20 (-0.75x)
(Subtract -0.75x to each side, which allows the equation to get closer to the answer).
(4). 2.25y -0.75x + 20
———— = ————
2.25 2.25
(Divide by 2.25 to each side).
(5). y ≤ -1/3x + 80/9
(The result and the inequality).
Find the domain and range of the given rational function f(x) =
x+1
2x−2
Answers
+1/ -2=-1
X=-1
solve pls brainliest
Answers
Answer:
(1,6)
Step-by-step explanation:
all u gotta do is look at the graph, the school is at x=1 and y=6 so therefore (1,6)
Answer:
(1,6)
Step-by-step explanation:
simplify 4h^j^-5k^7
Answers
Answer:
Answer in picture below
Which is the greatest fraction? 1/3 , 1/4 , 2/4 , 3/8
Answers
Answer:1/4 < 1/3 < 3/8 < 2/4 Hope that helps!:)
Step-by-step explanation:
Rewriting as equivalent fractions with the LCD:
1/3 1/4 2/4 3/8
8/24 6/24 12/24 9/24
Sorting this table by the numerators of the equivalent fractions in order from least to greatest:
1/4 1/3 3/8 2/4
6/24 < 8/24 < 9/24 < 12/24
Therefore, the sorted inputs in order from least to greatest is:
1/4 < 1/3 < 3/8 < 2/4
A 48 cm wire is to cut into two pieces. One piece must be cut 10 com longer than the shorter piece. How long should each peice be?
Answers
Step-by-step explanation:
short - S
long - L
L=10+S
L+S = 48
SINCE L=10+S
10+S+S=48
10+2S=48
2S=48-10
S=38/2=19
SHORT=19CM
LONG=10+S=10+19=39CM
At its peak, an online shopping site was selling about 420 items per second. At this rate, how many items would it sell in 30 minutes ( 1,800 seconds)?
Answers
You multiply the number of items by the number of seconds
Answer: 758,000
Step-by-step explanation:
Expression: 420 x 1,800
Basically just find the number of seconds and since every second 420 items are sold just multiply 420 x number of seconds which is 1,800
A number n is increased by 40% and then decreased by 14%. What is the final result in terms of n?
Answers
Answer:
X = 100. A 40% increase causes it to increase to 140. A 40% reduction amounts to multiplying by 0.6, leading to a reduction of 40% of 140 ...
John and Jill collect 280 stamps. Out of this John collected three time as many as
Jill. How many stamps did Jill collected?
Answers
Answer:
Jill collected 70 Stamps
John collected 210 Stamps
Step-by-step explanation:
280/4=70
Please allow me to know if my answer helped you with a thank you!
<3Miss Hawaii
PLEASE SHOW YOUR WORK
FIRST TO ANSWER GETS BRAINLIEST!
Answers
Answer:
Carlton: 731 feet tall
Burj Khalifa: 2716 feet tall
Q1 Tower: 1059 feet tall
The Shard: 1017 feet tall
Willis Tower: 1450 feet tall
Gran Torre: 984 feet tall
(note: this is all rounded up answers)
Work:
223 x 3.28 = 731
828 x 3.28 = 2716
323 x 3.28 = 1059
310 x 3.28 = 1017
442 x 3.28 = 1450
300 x 3.28 = 984
Please answer this
Hope you get along
I report What to answer
Answers
What the hel you expect us to do all that for 5 kids points? Go ask you mom to do that for you. If you're asking US to do that, then it has to be 40 or 50 points.
A 125 mililiter solution of fabric dye contains 5 ml of hydrogen peroxide what percent concentration of hydrogen peroxide?
Answers
Explicit Formula for 10,12,14,16,18
Answers
1.(154)10=(?)2
helpme! to solve it plz.
Answers
Answer:
I think its (10000110)2
IS
ΔABC » ΔQRS
Find the missing side length, x.
Answers
Answer:
x = 10
Step-by-step explanation:
x/8 = 15/12
x/8= 5/4
x= (8 x 5)/4
x = 10
A ball is thrown vertically upward from the top of a 100-foot tower, with an initial velocity of 20 ft/sec. Its position function is s(t) = -16t^2 + 20t + 100. What is its velocity in ft/sec when t = 1 second?
Answers
The velocity of the ball in ft/sec, when t = 1 second is equal to -12 ft/sec.
Given the following data:
Displacement = 100 feetTime = 1 secondsPosition function = [tex]s(t) = -16t^2 + 20t + 100[/tex]To calculate the velocity of the ball in ft/sec, when t = 1 second:
Mathematically, the velocity of an object or physical body is equal to the differentiation of it's position function.
Velocity = s'(t)
Velocity = [tex]s(t) = -16t^2 + 20t + 100[/tex]
[tex]Velocity = -32t + 20[/tex]
Substituting the value of time (t), we have:
[tex]Velocity = -32(1) +20\\\\Velocity =-32+20[/tex]
Velocity = -12 ft/sec
Read more: https://brainly.com/question/8898885
All the people of a neighborhood pooled together and won the lottery. They won $10,000,000 and each person got a 0.02 share. How much money did each person receive?
Answers
Answer:
$200,000
Step-by-step explanation:
They all won $10,000,000 and
each person got a 0.02 share of the $10,000,000
Each person received
10,000,000*0.02 = $200,000
Solve the equation a = m - n for the variable n.
Answers
Answer:
n = m - a
Step-by-step explanation:
a = m - n
add n to both sides of the equation
a + n = m - n + n
a + n = m
subtract a from both sides of the equation
a - a + n = m - a
n = m - a
Answer:
n = a - m
Step-by-step explanation:
a = m - n
a - m = n
help me guys I don't get this !!!
Answers
Answer:
-2.5, 0.75
Step-by-step explanation:
When we need to find a solution to a system of equations using a graphing tool, we graph those two equations and find the point of intersection.
This is an informative article on how to do that:
https://www.dummies.com/education/graphing-calculators/how-to-find-points-of-intersection-on-the-ti-84-plus/
A rectangular cake pan has a volume of
234
cubic inches. If the length of the pan is
9
inches and the width is
13
inches, what is the height of the pan?
Answers
Step-by-step explanation:
volume of a rectangular pan = length of the pan × width of the pan × height of the pan
V=l.b.h
234=9.13.h
h=234/9×13
h= 2in.
hope this helps you.
Answer:
2 inches
Step-by-step explanation:
V= 234, L=9, W=13, H=?
V= LxBxH
234= 9x13xH
234= 117H
divide through by 117
234/117 = 117H/117
H= 2inches
The pH scale measures how acidic or basic a substance is. Bleach is said to have a
55 POINTS!!! WILL MARK!!! ANSWER FAST!!!pH of less than 14 and greater than 11. Model the normal range of pH values of bleach, using a compound inequality.
11 > x > 14
11 < x < 14
11 ≤ x ≤ 14
11 ≥ x ≥ 14
Answers
Answer:
11 < x < 14
Step-by-step explanation:
Bleach ph value ranges from 11-13
Find the value of x so that L||M
Answers
9514 1404 393
Answer:
x = 19
Step-by-step explanation:
The marked (consecutive interior) angles will be supplementary when the lines are parallel.
(3x +10)° +(5x +18)° = 180°
8x = 152 . . . . . . . . . . . . . . . divide by °, subtract 28
x = 19 . . . . . . . . . . . divide by 8
What is the denotation of the word "stealing” in this excerpt?
being deceptive
committing a crime
keeping a secret
taking over
Answers
The word stealing in the given excerpt denotes; taking over
How to find the meaning of the excerpt?
This question is gotten from the excerpt from the Narrative of the Life of Frederick Douglass.
Now, from the given narrative, we see that her frame already racked with the pains of old age, and complete helplessness fast stealing over her once active limbs.
Thus, this means that the word stealing denotes that taking over her active limbs.
Read more about excerpt at; https://brainly.com/question/21400963
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Answer:
Taking over.
Step-by-step explanation: