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2 years ago

PLSS HELPP!!! I WILL MARK BRAINLIEST

Mathematics

2 answers:

makkiz [27]2 years ago

7 0

Answer:

Parallelogram

Step-by-step explanation:

proof:

draw lines from -3,3 to -1,4 then o,2 to 2,3 and the connect the top and bottom

Doss [256]2 years ago

6 0

Answer:

parallelogram

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Question 3 Please. I'm really stuck :(

Stells [14]

Let ∠RTS=∠RST = a (say)
∠QUA=∠QSU= b(say)
then we know , at point S, a+40+b=180. so, a+b=140 we'll use this later.

consider trianglePQR, ∠P+∠Q+∠R=180
i.e.P+(180-2b)+(180-2a)=180
P+180+180-2(a+b)=180 ⇒P+180-2(a+b)=0 ⇒P=2(140)- 180=280-180=100
hence,answer is E

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2 years ago

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What is the Median for the following set of numbers? â€‹21 23 76 47 55 135 45 30 17

Leno4ka [110]

Answer:

Median = 45

Step-by-step explanation:

We are given the following data set:

21, 23, 76, 47, 55, 135, 45, 30, 17

Median is the number that divides the data into two equal parts.

Formula:

$Median:\\\text{If n is odd, then}\\\\Median = \displaystyle\frac{n+1}{2}th ~term \\\\\text{If n is even, then}\\\\Median = \displaystyle\frac{\frac{n}{2}th~term + (\frac{n}{2}+1)th~term}{2}$

Sorted data:

17, 21, 23, 30, 45, 47, 55, 76, 135

Sample size = 9, which is odd

Median =

$\dfrac{9+1}{2}^{th}\text{ term} = \dfrac{10}{2}^{th}\text{ term} = 5^{th}\text{ term}\\\\= 45$

The median of given set of numbers is 45.

7 0

2 years ago

75% OFF!<br> The sale price of a garden hose is $2. What was the original price?

nasty-shy [4]

8$ If the sale is 75% then it would be 8$ because 2x4 is 8 and 3/4 of the is 2.

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2 years ago

What are whole numbers, integers, and rational numbers?

professor190 [17]

Answer:

Integers

Rational Numbers

Whole Numbers

In their respectful orders.

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3 years ago

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A submarine cruises underwater at 20 km/h and on

Darina [25.2K]

Answer:

System of equations:

20x + 30y = 650

x + y = 25

Time underwater = 10 hours

Time at the surface = 15 hours

Step-by-step explanation:

Let x = time underwater at 20 km/h.

Let y = time on the surface at 30 km/h.

speed = distance/time

distance = speed * time

distance underwater: 20x

distance on the surface: 30y

total distance: 650

20x + 30y = 650

total time: x + y

total time: 25

x + y = 25

20x + 30y = 650

x + y = 25

20x + 30y = 650

-20x - 20y = -500

--------------------------------

10y = 150

y = 15

x + y = 25

x + 15 = 25

x = 10

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3 years ago