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3 years ago

5

What 2 shapes did you use to find the area of the figure above? What is the area of each separate figure and the total of the en

tire figure? (you should choose 3 numbers)

2 answers:

algol [13]3 years ago

7 0

Answer:

sorry

Step-by-step explanation:

Nady [450]3 years ago

5 0

Triangles
And the area should be 60, that’s what I got

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Suppose a and b are the solutions to the quadratic equation 2x^2-3x-6=0. Find the value of (a+2)(b+2).

KonstantinChe [14]

Answer:

(a+2)(b+2) = 4

Step-by-step explanation:

We are given the following quadratic equation:

$2x^2-3x-6=0$

Let a a and b be the solution of the given quadratic equation.

Solving the equation:

$2x^2-3x-6=0\\\text{Using the quadratic formula}\\\\x = \dfrac{-b \pm \sqrt{b^2-4ac}}{2a}\\\\\text{Comparing the equation to }ax^2 + bx + c = 0\\\text{We have}\\a = 2\\b = -3\\c = -6\\x = \dfrac{3\pm \sqrt{9-4(2)(-6)}}{4} = \dfrac{3\pm \sqrt{57}}{4}\\\\a = \dfrac{3+\sqrt{57}}{4}, b = \dfrac{3-\sqrt{57}}{4}$

We have to find the value of (a+2)(b+2).

Putting the values:

$(a+2)(b+2)\\\\=\bigg(\dfrac{3+\sqrt{57}}{4}+2\bigg)\bigg(\dfrac{3-\sqrt{57}}{4}+2\bigg)\\\\=\bigg(\dfrac{11+\sqrt{57}}{4}\bigg)\bigg(\dfrac{11-\sqrt{57}}{4}\bigg)\\\\=\dfrac{121-57}{156} = \dfrac{64}{16} = 4$

3 0

3 years ago

A machinist uses a special tool to measure the diameter of a small pipe. The measurement tool reads 0.276 inch. What is this mea

Oliga [24]

I believe it should be .3 because its rounded to the nearest tenth

4 0

3 years ago

How do you solve this?

LekaFEV [45]

This is backward dude

7 0

3 years ago

Figure FGHJ is shown below.

Mumz [18]

Answer:

quadilateral and parallelogram

Step-by-step explanation:

Find the diagram attached.

The given four is known to have 4 sides and sicne quadilaterals are figures having four side, hence the given figure is a quadilateral. The example of the quadilateral is a parallelogram since opposite sides of the quadilateral are equal.

The names that accurately descbes the figure are quadilateral and parallelogram

3 0

3 years ago

Read 2 more answers

Naddik [55]

Answer:

The probability that an applicant does not get a job if he or she has an interview is 20%.

Step-by-step explanation:

If the applicant has been interviewed, then she/he belongs to the group of 20 people that had an interview.
16 of the 20 people who were interviewed were offered a job, which means that 4 of the 20 people interviewed were not offered a job.
Then, 4/20= 20% of the people who were intervied did not get a job, which means that the <u>probability that an applicant does not get a job if he/she were interviewed is 20%</u>.
Pat attention: this probability results from analysing the probability of getting a job once you have had an interview (this condition restricts our attention to the group of 20 people who had an interview, and not to the hole group of 500 people who did apply for the job).

5 0

3 years ago