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3 years ago

Question 1(Multiple Choice Worth 4 points)

1 answer:

4 0

I think you mean x^2 - 7x + 8
This is a basic factoring problem:
What two numbers multiply to make 8 and add to make -7?
There are no two numbers that work!
Therefore, it is prime

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-2a+7-3(-9-4a) how do I solve this?

Klio2033 [76]

Answer:

34+4a

Step-by-step explanation:

-2a+7-3(-9-4a)

➡ -2a+7+27+12a

➡34+10a

6 0

3 years ago

n Juanita's Art History class Quizzes are worth 15% of the final grade, Exams are worth 55%, Projects are worth 25%, and Attenda

kvv77 [185]

Answer:

90.75%

Step-by-step explanation:

Given;

Of the total final score;

Quizzes = 15%

Exam = 55%

Project = 25%

Attendance = 5%

Resolving the values of each section of the total score;

she had perfect attendance to class. 100% attendance;

Attendance = 5% of total score

She got extra credit on her project with a score of 26 out of 25 possible points.

Project = 26/25 × 25% = 26%

80, 85, and 96 on the first three exams,each worth 100 points;

Total exam score = 80+85+96 = 261 out of 300

Of the total score;

Exam = 261/300 × 55% = 47.85%

At mid-semester Juanita scored 119 out of 150 points on quizzes.

Quizzes = 119/150 × 15% = 11.9%

Total exam score is;

= Quizzes+exam +project+attendance

= 11.9% + 47.85% + 26% + 5%

= 90.75%

3 0

3 years ago

A cuboid is 4cm long, 7cm wide and 10cm high..A similar cuboid is 25cm high,calculate its length and width.....

coldgirl [10]

The dimensions of the larger cuboid are 25/10 = 2.5 times those of the smaller one. {length, width} = 2.5*{4 cm, 7 cm) = {10 cm, 17.5 cm}

5 0

3 years ago

Please hellp<br><br> Will give 100 extra point if right and brainliest

mixer [17]

Answer:

1) 500 2) $ 1000 debt 3) $350 4) $2500 debt

Step-by-step explanation:

profit = .5x -250

1) O = .5x -250

250 = .5x

500 = x number to break even

2) f(900) = .5 (900) -250 = $200

from the graph g(200) = total debt = $1000

3) f(x) = -75 = .5x-250 results in x = $ 350

4) f(500) = .5(500) - 250 = 0

from the graph, this corresponds to total debt g (f(500) = $2500 debt

7 0

2 years ago

3)June 2019-In the diagram below of AABC, D is a

Alexeev081 [22]

Answer:

BC = 23.8

Step-by-step explanation:

See the diagram attached.

Given AC ║ DE and BD = 5, DA = 12 and BE = 7.

We have to find BC.

Since, AC ║ DE, so, Δ ABC and Δ DBE are similar.

If two triangles are similar then the ratio of their corresponding sides remains the same.

Hence, $\frac{BD}{BA} = \frac{BE}{BC}$

⇒ $\frac{5}{12 + 5} = \frac{7}{BC}$

⇒ $BC = \frac{7 \times 17}{5} = 23.8$ (Answer)

7 0

3 years ago