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erastovalidia [21]
3 years ago
8

Which quadrilateral has all congruent sides, opposite parallel sides, and two acute angles?

Mathematics
2 answers:
SIZIF [17.4K]3 years ago
8 0
B.Rhombus the answer is rhombus.
adelina 88 [10]3 years ago
3 0
Rhombus the answer is letter B
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10) Solve the system by the elimination method. Check the solution.
Galina-37 [17]

Answer:

x =2, y = 2

Step-by-step explanation:

x + 2y = 6....(1) \\ -x + 5y = 8....(2) \\  adding \: equations \: (1) \: and \: (2) \\ x + 2y = 6\\ -x + 5y = 8 \\  -  -  -  -  -  -  -   \\ 7y = 14 \\ y =  \frac{14}{7}  \\ \huge \red{ \boxed{ y = 2}} \\ substituting \: y = 2 \: in \: equation \: (1) \\ x + 2 \times 2 = 6 \\ x + 4 = 6 \\ x = 6 - 4 \\\huge \purple{ \boxed{ x = 2}} \\  \\ \huge \orange{ \boxed{(x, \: y) = (2, \: 2)}}

8 0
3 years ago
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Hello!! Please help me!!!! I will give you brainleist if I can!! Thank you!!! ❤ and you can flip the image!! ✨❤
Airida [17]

Answer: Your answer will be Option three

Step-by-step explanation: Because she ate 1/3 the rest of the cake.

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5 0
3 years ago
An airline is planning its staffing needs for the next year. If a new route is​ approved, it will hire 858 new employees. If a n
stealth61 [152]

Answer:

E(X) = \sum_{i=1}^n X_i P(X_i)

And from the problem we know the following:

P(X_1) = 0.34 , X_1 =858 represent the condition if the route is approved

P(X_2) = 1-0.34=0.66 , X_1 =157 represent the condition if the route is NOT approved

Then replacing in the formula for the expected value we got:

E(X) = 858*0.34 + 157*0.66 = 395.34

So then the expected number of new employees to be hired by the​ airline based on the conditions given is between 395 and 396.

Step-by-step explanation:

For this cae we can define the random variable X who represent the number of new employees to be hired by the​ airline and we can find the expected value with the following general formula:

E(X) = \sum_{i=1}^n X_i P(X_i)

And from the problem we know the following:

P(X_1) = 0.34 , X_1 =858 represent the condition if the route is approved

P(X_2) = 1-0.34=0.66 , X_1 =157 represent the condition if the route is NOT approved

Then replacing in the formula for the expected value we got:

E(X) = 858*0.34 + 157*0.66 = 395.34

So then the expected number of new employees to be hired by the​ airline based on the conditions given is between 395 and 396.

6 0
3 years ago
<img src="https://tex.z-dn.net/?f=4g%20-%207c%20%2B%203g" id="TexFormula1" title="4g - 7c + 3g" alt="4g - 7c + 3g" align="absmid
pashok25 [27]

Step-by-step explanation:

4g-7c+3g

7g-7c i hope this helps

4 0
3 years ago
I need help with this STAAR practice
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42 because 3:1 is 3 ounces for box a to 1 ounce for box b. So divide 128 by 3.
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