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Aliun [14]
3 years ago
7

HELP!!! WILL MARK BRAINLIEST!!!

Mathematics
1 answer:
NikAS [45]3 years ago
4 0

Answer:

D. 11

Step-by-step explanation:

...

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Solve the system of equations. *<br> 4x - 2y = 16<br> y = -5x + 13
LekaFEV [45]

Answer:

is below

Step-by-step explanation:

x= -5/7

y= -66/7

your welcome

6 0
3 years ago
Find the distance between<br> (-1, - 3) and (8, – 3).
dimaraw [331]

Answer: d (A,B) = 9

Step-by-step explanation: d(A,B) = √(xB - xA)^2 + (yB - yA)^2

                                              d(A,B) = √(8-(-1))^2 + (-3 - (-3))^2

                                              d(A,B) = √81 + 0    

                                              d(A,B) = 9                                        

5 0
3 years ago
Select the correct answer. Jason inherited a piece of land from his great-uncle. Owners in the area claim that there is a 45% ch
GREYUIT [131]

Answer:

Option A 0.1698

Step-by-step explanation:

Given that Jason has a chance for getting oil as 45%

THe kit he buys show accurate result with 80% probability

Let A1- Event that the land has oil

A2 - Event that the land has no oil

B- The test gives negative result

A1 and A2 are mutually exclusive and exhaustive

P(A1) = 0.45 and P(A2) =0.55

Hence we can use Baye theorem

Then P(B) = P(A1B)+P(A2B)=0.45(0.20)+0.55(0,80)\\=0.09+0.0.44\\=0.53

Reqd prob =P(A1/B) =

\frac{P(A1B)}{P(B)}\\ =\frac{0.09}{0.53}\\\\=0.1698

3 0
3 years ago
A rectangle has a length of (3.2a + 0.18b)centimeters.The width is half the length. Sasha writes the expression (12.8a + 0.72b)
jeka94
The width is half the length, so is
  width = (1/2)*length
  width = (1/2)*(<span>3.2a + 0.18b) cm
  width = (1.6a +0.09b) cm

The perimeter of the rectangle is twice the sum of length and width.
  perimeter = 2*(length + width)
  perimeter = 2*((3.2a +0.18b) cm + (1.6a +0.09b) cm)
  perimeter = 2*(4.8a +0.27b) cm)
  perimeter = (9.6a +0.54b) cm

Sasha did not get this answer, so apparently ...
  her reasoning was not correct.</span>
8 0
3 years ago
A huge ice cream sundae is made for a charity. It contains about 6,900 pounds of topping. The topping flavors are chocolate, but
Dennis_Churaev [7]

Answer:

7500 pounds of toppings

Step-by-step explanation:

6,900 + 600=

3 0
3 years ago
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