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Allushta [10]
2 years ago
14

Help please it is a test as fast as you can please​

Mathematics
2 answers:
ASHA 777 [7]2 years ago
7 0

Answer:

7.5km/he I am not 100percent sure

valentinak56 [21]2 years ago
4 0

Answer:

Its the first one

Step-by-step explanation:

If you add 1.5 and 1.5 you get 3.0.

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A Machine can produce six yards of yarn in two minutes. How many yards of yarn can it produce in one hour
kaheart [24]

Answer:180

Step-by-step explanation:

8 0
3 years ago
A shipment of 12 microwave ovens contains three defective units. A vending company has ordered four units, and because each has
statuscvo [17]

Answer:a) 54/55

b) 100/110

c) 99/110

Step-by-step explanation:

a)Probability of ordering 4= 9/12×3/11×2/10×1/9 = 54/11880

Probability of 4 good units= 4 × 54/11880

= 216/11880

1/55

1-(1/55) = 54/55

b)Probability of 2 good units= 2 × 54/(11880)

= 108/11880

= 1/110

1- (1/110)= 100/110

c) Probability of exactly 2 units not good= 1 -(100/110) =99/110

8 0
3 years ago
Sara is working on a Geometry problem in her Algebra class. The problem requires Sara to use the two quadrilaterals below to ans
zloy xaker [14]
Part A:

Given a square with sides 6 and x + 4. Also, given a rectangle with sides 2 and 3x + 4

The perimeter of the square is given by 4(x + 4) = 4x + 16

The area of the rectangle is given by 2(2) + 2(3x + 4) = 4 + 6x + 8 = 6x + 12

For the perimeters to be the same

4x + 16 = 6x + 12
4x - 6x = 12 - 16
-2x = -4
x = -4 / -2 = 2

The value of x that makes the <span>perimeters of the quadrilaterals the same is 2.



Part B:

The area of the square is given by

Area=(x+4)^2=x^2+8x+16

The area of the rectangle is given by 2(3x + 4) = 6x + 8

For the areas to be the same

x^2+8x+16=6x+8 \\  \\ \Rightarrow x^2+8x-6x+16-8=0 \\  \\ \Rightarrow x^2+2x+8=0 \\  \\ \Rightarrow x= \frac{-2\pm\sqrt{2^2-4(8)}}{2}  \\  \\ = \frac{-2\pm\sqrt{4-32}}{2} = \frac{-2\pm\sqrt{-28}}{2}  \\  \\ = \frac{-2\pm2i\sqrt{7}}{2} =-1\pm i\sqrt{7}

Thus, there is no real value of x for which the area of the quadrilaterals will be the same.
</span>
7 0
3 years ago
1.What is the principal which would amount to $6 900 in 3 years at 5% simple interest per annum?Required to answer. Single choic
Jobisdone [24]

Answer:

c

Step-by-step explanation:

I just looked up the question

8 0
3 years ago
A square picture frame with each side length represented by 3x -
Mariulka [41]

Answer:

D. 4(3x-5) = 52

Step-by-step explanation:

52 is equal the sum of one side multiplied by 4

So

4(3x-5) = 52

Is the right answer

6 0
3 years ago
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