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3 years ago

URGENT this is a question on my precalculus test I need help on. Thank you so much

Mathematics

1 answer:

sp2606 [1]3 years ago

5 0

Answer:

a. 5i + 13j

b. 8i

c. 10i + 6j

Step-by-step explanation:

a. 2i + 6j + 3i + 7j = 5i + 13j

b. 3i + 7j + 5i - 7j = 8i

c. 2i + 6j + 3i + 7j + 5i - 7j = 10i + 6j

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For the results of a certain survey, the estimated probability of being a car owner was 0.77 for males and 0.62 for females. Ex

yKpoI14uk [10]

Answer:

P(CO|M)=0.77 for male

and P(CO|M^c)=0.62 for female

Step-by-step explanation:

When we talk of conditional probability, we refer to the measure of the probability of an event given that another event has occurred

Here, we are to express the results of the survey as a conditional probability.

For the male part of the question, the conditional probability means that, given that the person is a male, the probability that he is a car owner would be;

P(CO|M)=0.77

For the female part of the question, what we have as a conditional probability is that if a person is a female that she is a car owner is;

P(CO|M^c)=0.62

Please kindly understand that the term M^c refers to M complement in words

6 0

3 years ago

Solve 7w^2+42=98 , where w is a real number

loris [4]

The answer is square root of 8

8 0

3 years ago

A squared plus b squared equals c squared calculator

Vlada [557]

Answer:

umm?

Step-by-step explanation:

You just uhh explained the pythagorean theorem formula

$a^{2} + b^{2} = c^{2}$

but what's the question?

4 0

2 years ago

HURRY ILL GIVE U BRAINLIEST!!! Find the area of each figure. Which do these belong in?

nordsb [41]

Answer:

Area of rectangle PQRS is 14 square units.

Area of triangles UVW and EFG and square ABCD are 16 square units each.

Step-by-step explanation:

Let us find the area of each of the figures shown in the graph.

Area of rectangle PQRS is given as the product of PQ and QS.

From the graph,

Length of PQ = 7 units

Length of QS = 2 units

Now, area of rectangle PQRS = $PQ\times QS=7\times 2=14$ square units.

Now, area of square ABCD is given as the square of any of its side.

From the graph, AB = 4 units.

So, area of ABCD = $AB^{2}=4^2=16$ square units.

Area of triangle UVW is given as the half of the product of its base VW and height UW.

From the graph, UW = 4 units, VW = 8 units

Therefore, area of triangle UVW = $\frac{1}{2}\times UW\times VW=\frac{1}{2}\times 4\times 8=16$ square units.

For triangle EFG, EF = 4 units and FG = 8 units.

Area = $\frac{1}{2}\times EF\times FG=\frac{1}{2}\times 4\times 8=16$ square units.

Area of rectangle PQRS is 14 square units. The remaining figures have areas each equal to 16 square units.

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3 years ago

What is the purpose of rereading a text? Check all that apply.

natta225 [31]

To improve comprehension

6 0

2 years ago

Read 2 more answers