1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
stiks02 [169]
3 years ago
7

5. Evaluate the following expression when a = -4

Mathematics
1 answer:
Basile [38]3 years ago
7 0

Answer:

Step-by-step explanation:

Given the expression

b|3a – 81 – 3/2 – 2a

If a = -4, b = 1/2

Substitute

(1/2)/3(-4) - 81 - 3/2 - 2(-4)

1/2 * 1/-12 - 81 - 3/2 + 8

= -1/24 - 81 + 8 - 3/2

= -1/24 - 3/2 - 73

= -1-36-1,752/24

= -1,789/24

= -74.5

You might be interested in
Which is steeper, a slide that rises 3 feet for every 2 feet of run, or a sliding pole that rises 5 feet for every 3 feet of run
mezya [45]

Answer:

59.03° is greater than 56.31°' This means that the sliding pole that rises 5 feet for every 3 feet of run making an angle of inclination of 59.03° is steeper than the angle of inclination made by a sliding pole that rises 3 feet for every 2 feet run.

Step-by-step explanation:

Step 1

Express the angle of inclination as follows;

Tan∅=H/R

where;

∅=angle of inclination

H=vertical rise

R=distance of run

Step 2

Determine the angle inclination when;

H=3 feet

R=2 feet

replacing;

Tan∅=(3/2)=1.5

∅=Tan^(-1)(1.5)

∅=56.31°

Determine the angle inclination when;

H=5 feet

R=3 feet

replacing;

Tan∅=(5/3)=1.67

∅=Tan^(-1)(1.67)

∅=59.03°

59.03° is greater than 56.31°' This means that the sliding pole that rises 5 feet for every 3 feet of run making an angle of inclination of 59.03° is steeper than the angle of inclination made by a sliding pole that rises 3 feet for every 2 feet run.

6 0
3 years ago
330 six graders were asked what their favorite sport is. 20% said baseball, how many students said baseball
Harrizon [31]

Answer:

66

Step-by-step explanation:

10% of 330 = 33

another 10% of 330 = 33

therefore, 20% of 330 = 66

6 0
3 years ago
What is 50% of 50? Use a diagram to show your work. Draw a diagram to help you.?
topjm [15]

Answer:

25.

Step-by-step explanation:

50% = 1/2 and 1/2 of 50 is 25. so 50% is 25.

8 0
3 years ago
Read 2 more answers
Write a word problem that you can solve using multiples to estimate the quotient. Include a solution
hichkok12 [17]

Let us consider,

The problem: 'Find two numbers between which the quotient of 50 ÷ 7 lies'.

Solution: We will solve this in two steps.

Step 1: Form a table of multiples of 7.

Counting number               Multiple of 7

          1                                       7

          2                                     14

          3                                     21

          4                                     28

          5                                     35

          6                                     42

          7                                     49

           8                                    56

Step 2: Use the table to find the multiples closest to 50.

Since, 49 = 7 × 7 and 56 = 7 × 8

Thus, 50 lies between 49 and 56.

Then, the quotient is either 7 or 8.

As 50 is closest to 49.

Hence, the quotient of 50 ÷ 7 is 7.

3 0
3 years ago
Read 2 more answers
Thomas has finished 50% of an art project that has taken him a total of 9 hours so far. If he continues to work at the same rate
In-s [12.5K]

Answer:

18

Step-by-step explanation:

If he has worked for 9 hours and its 50% done he has to work for 9 more hours to get it finished so he would have worked on it for 18 hours to get it totally finished

8 0
3 years ago
Other questions:
  • Which of the following is not a type of nonfiction?
    11·2 answers
  • What percent of 50 is 18
    8·1 answer
  • In the first two hours of the trip, Julissa drove 120 miles. In the next hour, she traveled only 48 miles. What was Julissa’s av
    13·1 answer
  • Find the 7th term in the expansion of (3x^2+4)^11​
    7·1 answer
  • Carl took his brother to dinner. The bill, including tax, was $50. Carl left a tip of $8. What percent of the bill did Carl leav
    8·1 answer
  • Can anyone solve this for me?<br><br><img src="https://tex.z-dn.net/?f=x%5E%7B2%7D" id="TexFormula1" title="x^{2}" alt="x^{2}" a
    5·1 answer
  • You have a family traveling from far away to come to your house. They travel 342 miles and arrive to your house in 6 hours, how
    10·1 answer
  • At a school there are 864 students and 80 staff members. 5/8 of the students are boys. How many girls are in the school?
    11·1 answer
  • Marilyn saves 30% of the money she earns each month.She earns $350 each month.How much does she save?​
    12·1 answer
  • Larry saves 15% of his annual salary for retirement. This year his salary was $2000 more than last year and he saved $3300. What
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!