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katen-ka-za [31]
3 years ago
15

Two life insurance companies determine their premiums using different formulas:

Mathematics
1 answer:
Pie3 years ago
8 0

Answer:

<em>The age at which both companies charge the same premium is 44 years</em>

Step-by-step explanation:

<u>Graph Solution to System of Equations</u>

One approach to solving systems of equations of two variables is the graph method.

Both equations are plotted in the same grid and we find the intersection point(s) of both graphs. Those are the feasible solutions.

The annual premium p as a function of the client's age a for two companies are given as:

Company A: p= 2a+24

Company B: p= 2.25a+13

The graphs of both functions are shown in the image below.

The red line indicates the formula for Company A and the blue line indicates the formula for Company B.

It can be seen that both lines intersect in the point with approximate coordinates of (44,112).

The age at which both companies charge the same premium is 44 years

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Find the value of the marked angles in each of the following ( see image ).
Assoli18 [71]

Answer:

  • 50°

Step-by-step explanation:

Assumed that 40° is the angle of the smaller triangle.

The missing angle is complementary with 40° as part of similar triangles and intercepted arcs.

<u>Its measure:</u>

  • 90° - 40° = 50°
6 0
3 years ago
The Transportation Safety Authority (TSA) has developed a new test to detect large amounts of liquid in luggage bags. Based on m
madreJ [45]

Answer:

1. 0.1445

2. 0.3426

3. 0.6574

Step-by-step explanation:

Let L be the event that there is liquid in the bag

Let + the be event of a positive test.

we are given:

P(+ | L) = 0.99

P(+ | L') = 0.10

P(L) = 0.05

1. Find P(+), use the Law of Total Probability to do this:

P(+) = P(+|L)P(L) + P(+ | L')P(L')

= 0.99 * 0.05 + 0.1 * (1- 0.05)

= 0.1445

2. Find P( L | + ) = P( L ∩ + ) / P(+) . . . definition of conditional probability

= P( + | L ) P(L) / P(+) . . . again using definition of conditional probability

= 0.99 * 0.05 / 0.1445

= 0.3426

3. P( L' | + ) = 1 - P( L | + ) = 1 - 0.3426 = 0.6574

4 0
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Kyle has a rock collection.On monday he found 16 new rocks. On Tuesday he give 9 rocks to his friends. After giving away the roc
sergey [27]

the answer is 155 hope this helps

5 0
3 years ago
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Which graph matches the equation y+3=2(x+3)?
Vlad1618 [11]

Answer:

The graph that includes points (-3,-3) and (0,3)

Step-by-step explanation:

In the pictures attached, the options are shown.

The equation:

y+3=2(x+3)

has the point-slope form, which is:

y-y₁=m(x-x₁)

where (x₁, y₁) is a point on the line and <em>m</em> is its slope. This means that (-3,-3) is on the line. To know the y-intercept of the line, we have to replace x = 0 into the equation, as follows:

y+3=2(0+3)

y+3 = 6

y = 6 - 3

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Then, point (0, 3) is on the line.

8 0
3 years ago
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SpyIntel [72]
The answer would be 125
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