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avanturin [10]
3 years ago
8

Need help please explain why its the answer and show work Look at picture

Mathematics
2 answers:
bonufazy [111]3 years ago
6 0

Answer:

14.a

15.c

16.d

Step-by-step explanation:

i choose these because they are in the geometry book

oee [108]3 years ago
3 0

Answer:

ye

Step-by-step explanation:

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Joe the trainer has two solo workout plans that he offers his clients: Plan A and Plan
sasho [114]
Let workout Plan A last a hours, and Plan B last b hours.

we are assuming personal training for each client.

i)
"On Monday there were 2 clients who did Plan A and 3 who did Plan"

the total time spent is : 2*a + 3*b =2a+3b

ii)
"On Tuesday there were 4 clients who did Plan A and 8 who did Plan B"

the total time spent was 4*a+8*b=4a+8b

iii) "Joe trained his Monday clients for a total of 7 hours"

so 2a+3b = 7

iv)

"Joe trained his Tuesday clients for a total of 17 hours"

so 4a+8b=17

v) thus we have the following system of equations:

2a+3b = 7
4a+8b=17

multiply the first equation by -2, and then add both equations, to eliminate a:

-4a-6b=-14
4a+8b=17
-------------------
2b=3, so b=3/2

2a+3b = 7
2a+3(3/2)=7
2a+9/2=7
multiply by 2:
4a+9=14
4a=5
a=5/4

Answer :

Plan A lasts 5/4=1.25 h
Plan B lasts 3/2=1.5 h


8 0
3 years ago
What is the area,in square yards of the rectangle shown down below 12yd 15yd Answer choices are 225,54,180,27
11Alexandr11 [23.1K]

Answer:

area of rectangle =length ×width

area of rectangle=12yd×15yd

area of rectangle=180yd²

5 0
3 years ago
Read 2 more answers
A corporation has 11 manufacturing plants. Of these, seven are domestic and four are outside the United States. Each year a perf
nikdorinn [45]

Answer:

The probability that a performance evaluation will include at least one plant outside the United States is 0.836.

Step-by-step explanation:

Total plants = 11

Domestic plants = 7

Outside the US plants = 4

Suppose X is the number of plants outside the US which are selected for the performance evaluation. We need to compute the probability that at least 1 out of the 4 plants selected are outside the United States i.e. P(X≥1). To compute this, we will use the binomial distribution formula:

P(X=x) = ⁿCₓ pˣ qⁿ⁻ˣ

where n = total no. of trials

           x = no. of successful trials

           p = probability of success

           q = probability of failure

Here we have n=4, p=4/11 and q=7/11

P(X≥1) = 1 - P(X<1)

          = 1 - P(X=0)

          = 1 - ⁴C₀ * (4/11)⁰ * (7/11)⁴⁻⁰

          = 1 - 0.16399

P(X≥1) = 0.836

The probability that a performance evaluation will include at least one plant outside the United States is 0.836.

7 0
2 years ago
Two numbers are opposites are 12 units apart. What are the two numbers? Answer smaller number, larger number
Ugo [173]

Answer:

-6, 6

Explanation:

-6 - 6 = -12

8 0
2 years ago
Simplify: x^0 y^-3 / x^2 Y^-1
natita [175]
<span>x^0 y^-3 / x^2 y^-1 
= 1 / </span> x^2 y^-1 (y^3)  ...because  x^0 = 1 and  [(y^-1) (y^3)] = y^2<span>
= 1/(x^2 y^2)</span>
3 0
3 years ago
Read 2 more answers
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