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4 years ago

Solve the following system of equations.

Mathematics

1 answer:

sasho [114]4 years ago

4 0

X is minus 2
y is equal to 1

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Mai received a $70 gift card for a coffee store. She used it in buying coffee that cost $8.48 per pound. After buying the coffee

Yuri [45]

Since she had $35.48 on her card.

Amount spent in buying coffee = $70 - $35.48 = $34.52

Cost of coffee = $8.63 per pound

No of pounds = Amount spent / cost per pound

= 34.52 / 8.63 Use your calculator.

= 4

4 0

3 years ago

Read 2 more answers

What is the ratio (multiplier) of the following geometric sequence? 4, 2, 1, 0.5, . . .

Fantom [35]

Its either gonna be 1/2 or 0.5

7 0

4 years ago

Read 2 more answers

Ok but fr help.. Assuming only the lengths of the sides of a triangle are given, how can you determine if the triangle has a rig

Strike441 [17]

Answer:

If you take the 2 smallest sides and put it in the pythagreon theorem to get the other side length.

Step-by-step explanation:

So if you have a triangle with side lengths, 3, 4, and 5, you can use the exact equation below.

${3}^{2} + {4}^{2} = {5}^{2}$

Because this is true, then the triangle does have a right angle.

4 0

3 years ago

Where is the location of the vertex of the parabola on a coordinate grid y=x^2+2x+1

solniwko [45]

Answer:

(-1,0)

Step-by-step explanation:

Convert the equation to vertex form which becomes y=(x+1)^2+0

Then we can see the vertex in the form (h,k) in y=a(x-h)^2+k

7 0

4 years ago

Read 2 more answers

Among fatal plane crashes that occurred during the past 55 years, 415 were due to pilot error, 96 were due to other human err

azamat

Answer:

Relative frequency:

$\text{Pilot error}=415/1370=0.30\\\\\text{Other human error}=96/1370=0.07\\\\\text{Weather}=169/1370=0.12\\\\\text{Mechanical problems}=622/1370=0.45\\\\\text{Sabotage}=68/1370=0.05\\\\$

The most serious threat to aviation safety is, according to this data, "mechanical failures". It can be improved by more rigorous inspection and better maintenance policies and execution.

Step-by-step explanation:

We have the data for fatal plane crashes. The sum of plane crashes is

We can calculate the relative frequency as:

$\text{Pilot error}=415/1370=0.30\\\\\text{Other human error}=96/1370=0.07\\\\\text{Weather}=169/1370=0.12\\\\\text{Mechanical problems}=622/1370=0.45\\\\\text{Sabotage}=68/1370=0.05\\\\$

We can see that the most frequent cause is "mechanical problems", with a relative frequency of 0.45.

4 0

3 years ago