Mathematics High School

5. Evaluate the following expression when a = -4
and b = 1/2.
b|3a – 81 – 3/2 – 2a
a) -40
c) 20
b) -20
d) -10

Answers

Answer 1

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

Related Questions

Find the area of the trapezoids. What is the Area of the trapezoids

A= Square units

Answers

Answer:

[tex]area = area \: of \: rectangle + area \: of \: triangles \\ = (6 \times 2) + ( \frac{1}{2} \times 6 \times 2) + ( \frac{1}{2} \times 6 \times 4) \\ = 12 + 6 + 12 \\ = 30 \: sq \: units[/tex]

Answer:

30

Step-by-step explanation:

please help me out ill mark u brainlist

Answers

Answer:

a = 13

Step-by-step explanation:

Isolate the variables by dividing each side factors that do not contain the variable.

What does it mean to square a number? Provide an example to support your answer.

Answers

Answer:

When squaring a number it is essentially taking a number and multiplying it by itself. For example, 5^2 is 5×5 (=25).

Please help me with all 6 questions ASAP DUE SOON AND SHOW WORK !!!!

Answers

Answer:

654 mutiply 78 plus is 28

Answer:

7. V = pi(r)^2(h)

   V = pi(7)^2(20)

   V = 3078.76

8. Same formula as 7.

V = 502.65

10. Same formula again

V = 62.83

11. V = 4/3*pi(r)^3

    V = 4/3*pi(6)^3

    V = 904.78

A pie chart is being made with four sectors. Each sector will be a certain percentage of the total area. The table below shows the size of each sector as a percentage of the total area. Sector 1 = 5%
Sector 2 =30%
Sector 3 = 50%
Sector 4 = 15%

What will be the measure of the central angle of sector 4?
A. 27°
B. 54°
C. 5.4°
D. 57°​

Answers

Answer:

B. 54°

Step-by-step explanation:

There are 360° in a circle and sector 4 consists of 15% of it.

We just have to multiply the 2 numbers.

15% = 0.15

0.15(360) = 54

Select the correct answer.
Write an expression to represent the product of 6 and the square of a number plus 15.

In your expression, what is the value of the coefficient?

A. 6
B. 15
C. 1
D. 2

Answers

The coefficient I believe would be 6

What is the length of a leg of a right triangle if the hypotenuse is 9 inches and the other leg is 8 inches.

Answers

Answer:

√17 or 4.12 inches

Step-by-step explanation:

√9²-8²=√81-64=√17 inches

or 4.12 inches

can you help me with this problem please?

Answers

Answer:

PR = 2*36 = 72

SU = (1/2)54 = 27

RS = 36

Step-by-step explanation:

By the Midpoint Theorem, the argent that connects midpoints of the sides of a triangle equals half the parallel side. That said,

PR is the full side that corresponds to midpoint segment TU. Therefore it's twice the distance of TU.SU is the midpoint segment that corresponds to fill side PQ and therefore half the distance.RS is half the the length of PR since S is the midpoint.

Answer pls
The hint part also

Answers

4x+60+ x+15=180
5x+75=180
5x=105
x=21
Two linear angles are supplementary thereom

help fast please !!!!

Answers

Answer:

C=13

Step-by-step explanation:

[tex]a^{2} +b^{2} =c^{2} \\\\5^{2} +12^{2} =c^{2}[/tex]

PLEASE HELP ME I'M FALLING PLSSS

Answers

6x+2x=90

so x= 11.25

Answer:

the value of x equals 11.25°

Step-by-step explanation:

6x + 2x =90°

8x=90°

---------

x=90/8

x=11.25°

‼️ PLEASEEE HELPPPP ‼️

Answers

Answer: answer is in the photo

Step-by-step explanation:

Answer:

x=7

Angle = 102

Step-by-step explanation:

Both angles are congruent, meaning they have the same measure.

Set your formula up as

15x-5=13x+9

15x=13x+9+5

15x-13x=9+5

2x=14

x=14/2

x=7

Now plug in 7 for x

15x-3

15*7-3

105-3

102

Please help ill make you the brainiest(please no link people)

Answers

the answer to this should be C



A car salesman sold three hybrid cars last week. The cars come in red, white, and black. A sale is listed as RWB if a red car was sold first, a white

was sold second, and a black car was sold third.

A list of all possible outcomes is shown. Each outcome has equal probability.

{RRR, RRW, RRB, RWR, RWW, RWB, RBR, RBW, RBB, WWW, WWR, WWB, WRR,

WRB, WRW. WBR, WBB, WBW, BBB, BBR, BBW, BWR, BWW, BWB, BRW, BRR, BRB)

What is the probability that the cars sold last week included a white car or the first car sold was red?

Answers

Answer:

23 / 27

Step-by-step explanation:

Total possible outcomes :

{RRR, RRW, RRB, RWR, RWW, RWB, RBR, RBW, RBB, WWW, WWR, WWB, WRR, WRB, WRW. WBR, WBB, WBW, BBB, BBR, BBW, BWR, BWW, BWB, BRW, BRR, BRB) = 27

Required outcome : 23

{RRR, RRW, RRB, RWR, RWW, RWB, RBR, RBW, RBB, WWW, WWR, WWB, WRR, WRB, WRW. WBR, WBB, WBW, BBW, BWR, BWW, BWB, BRW) = 23

Required outcome / Total possible outcomes

= 23 / 27

Simplify the expression.

12−3 ∙ 1210 ∙ 120


A: 367


B: 1


C: 17287


D: 127

Answers

Answer:

-435588

Step-by-step explanation:

12−3 ∙ 1210 ∙ 120

Multiply first

12-435600

Then subtract

-435588

Answer:

12^7

Step-by-step explanation:

I got it right in grandpoint

NEED HELP ASAP!!!!!The perimeter of a ractangle is 176 ft. If the ratio of the length to the width is 9 : 2, what is the length of each side?

(P = 2l + 2w)

Answers

P=2l+2w

l+w equals half of the perimeter

220/2=110

the ratio of the length to the width is 7:3

7x+3x=110

10x=110

x=11

7*11=77 for the length

3*11=33 for the width

A=l*w

A=77*33

A=2541 square inches for the area

maybe you are getting the formula mixed up ?!?!

What is the solution to the equation. |x- 4| = 17?
A. x= -13 or x= 21
B. x= 21
c. x= -21 or x= 13
D. No solutions exist.

Answers

A, x=-13 or x=21.

-13 - 4 (-13+ -4) is equal to -17. Due to absolute value bars, it is now positive 17.

21-4 = 17
Answer: C. x = -21 or x = 13

Step-by-step explanation:

Help! I’ll give brainliest if I can!

Answers

Answer:

1) I can use the hours and number of packages to help solve the problem

2) I go to the number 3 and go up from there (answer 45)

3) the packages a driver can deliver in a 7 hour day is 105

4)divided 15 from 120

Step-by-step explanation:

1) question 4) you find out how much packages he deilivers in an hour

2) question 4) its 15

3) question 4) divided 10 from 120 :)

what is the best choice for value y?

Answers

Answer:The answer is second option

[tex] {x}^{10 - 3} \\ {x}^{7} [/tex]

The correct answer is the second opinion. Have a great day lovely’s

Find the measurement of the base.
3.5 in
Area = 12.6 in?

Answers

3.6 in i believe
12.6 divided by 3.5
= 12.6/3.5
= 3.6
3.6 x 3.5
= 12.6 =12.6

Which is the slope of the line that passes through the points (3,17) and (7,25)?

Answers

Answer:

The slope is 2.

Step-by-step explanation:

Francis is buying a new coffee table that is 45% off. The original price of the coffee table was $166. Which option gives the best estimate for the price after the discount?
A.$70
B.$85
C.$120
D.$100

Answers

about $92 so d) $100 is the best estimate

Answer: D

Step-by-step explanation:

look at the attached question and answer it with steps and explanation pls...... best and correct answer will be marked brainliest.

Answers

Answer:

There ya go, gotta love mathaway :P

The weight of a newborn baby panda weights 2.2 x 10-1 pounds. If an adult panda can weigh up to 1.2103 times more than a newborn panda how many pounds does an adukt panda weigh

Answers

Answer: [tex]0.4862\ \text{Pounds}[/tex]

Step-by-step explanation:

Given

Weight of a newborn baby is [tex]2.2\times 10^{-1}\ \text{pounds}[/tex]

If an adult panda weighs up to 1.2103 times more than a newborn panda

Then weight of an adult is given by

[tex]\Rightarrow 2.2\times 10^{-1}+2.2\times 10^{-1}\times 1.2103\\\Rightarrow 2.2\times 10^{-1}+2.6626\times 10^{-1}\\\Rightarrow 0.4862\ \text{Pounds}[/tex]

Answer in simplest from

Answers

Answer:

5 4/5

Step-by-step explanation:

Answer:

6 1/10

Step-by-step explanation:

Add 4 1/2 and 1 3/5. To add that, you need to multiply the denominators and the numerators, in this case that equals 10. So then add the fractions first 5/10+ 6/10=11/10. Since that is an improper fraction, add +1 to the hole numbers, so you answer would be 6 1/10

2 7. Which numbers in the set {2,3,4,5} are solution(s) to the inequality 16 - 3x > 5?

A. 2 only
B. 3 only
C. 2 and 3
D.3,4, and 5​

Answers

Djdhhzns DVD’s hdudjdbdbbd

(Help!) I need somebody (Help!) Not just anybody (Help!) You know I need someone (Help!). Algebra question :)

Answers

Step-by-step explanation:

meetcome on (Help!) You know I need someone (Help!). Algebra question :)

Answer:

the 1st, 3rd, 6th and last one

Step-by-step explanation:

just use square roots

1% of what number is 4?

Answers

Answer:

400.

Step-by-step explanation:

4 x 100 = 400

Find the value of x.

Answers

Answer:

x = 4

Step-by-step explanation:

The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.

(19x + 3)° is an exterior angle of the triangle, then

11x - 2 + 9x + 1 = 19x + 3

20x - 1 = 19x + 3 ( subtract 19x from both sides )

x - 1 = 3 ( add 1 to both sides )

x = 4

Which of the following is the graph of the inequality y < 3x+ 1?
А
B
C
D
5
To (1.4)
(1.4)
(1.4)
5
(1.4)
(0.1)
(0.1)
€ (0, 1)
(0, 1)
-6
5
A. Graph A
B. Graph B
C. Graph C
D. Graph D

Answers

D is the correct graph.
Testing (1, 4) which on the line. 4 = 3x1 + 1 is true so the line is solid.
Testing (0, 0) which is below the line. 0 = 3x0 + 1 is true so the origin must be in the shaded region.
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