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
alekssr [168]
3 years ago
11

WILL MARK BRAINLIEST

Mathematics
1 answer:
Ede4ka [16]3 years ago
7 0

Evaluate abs(-4 b - 8) + abs(-b^2 - 1) + 2 b^3 where b = -2:

abs(-4 b - 8) + abs(-b^2 - 1) + 2 b^3 = abs(-4 (-2) - 8) + abs(-1 - (-2)^2) + (-2)^3×2

(-2)^2 = 4:

abs(-4 (-2) - 8) + abs(-4 - 1) + 2×(-2)^3

-4 (-2) = 8:

abs(8 - 8) + abs(-4 - 1) + 2×(-2)^3

8 - 8 = 0:

abs(0) + abs(-1 - 4) + 2×(-2)^3

-1 - 4 = -5:

abs(0) + abs(-5) + 2×(-2)^3

(-2)^3 = (-1)^3×2^3 = -2^3:

abs(0) + abs(-5) + 2×-2^3

2^3 = 2×2^2:

abs(0) + abs(-5) + 2 (-2×2^2)

2^2 = 4:

abs(0) + abs(-5) + 2 (-2×4)

2×4 = 8:

abs(0) + abs(-5) + 2 (-8)

Since 0 is at the origin, then abs(0) = 0:

abs(-5) - 8×2

Since -5<=0, then abs(-5) = 5:

5 - 8×2

2 (-8) = -16:

-16 + 5

5 - 16 = -11:

Answer: -11

You might be interested in
This is due soon help
cricket20 [7]
50 miles = 1 hour
50 x 1 = 50

a. 50 miles x 2 hours = 100 miles
b. 50 miles x 4.3 hours = 215 miles
c. Converting minutes to hours, it would make 20 minutes become 0.333 hours.
50 x 0.333 = 16.65 miles
6 0
3 years ago
The scores of 1000 students on a standardized test are normally distributed with a mean of 50 and a standard deviation of 5. wha
ra1l [238]
We are looking to find P(X>60 students)

X is normally distributed with mean 50 and standard deviation 5

We need to find the z-score of 60 students 
Z= \frac{60-50}{5}=2

To find the probability of P(Z>2), we can do 1 - P(Z<2)
So we read the probability when Z<2 which is 0.9772, then subtract from one we get 0.0228

The number of students that has score more than 60 is 0.0228 x 1000 = 228 students
3 0
3 years ago
Solve and graph the absolute value inequality: |2x + 1| ≤ 5. number line with closed dots on -3 and 2 with shading going in the
Andrei [34K]
We are given with the inequality |2x + 1| ≤ 5 and asked to solve the equation. In this case, we take first the positive side, that is 2x + 1 ≤ 5. this is equal to 2x ≤ 4 or x ≤ 2. For the negative side, the equality is -5 ≤ 2x + 1. This is equal to -6 ≤ 2x or -3 ≤ x. Hence the solution is  -3 ≤ x ≤ 2. The answer is B. closed dots on -3 and 2 with shading in between. The equal in <span>≤  means closed dots.</span>
6 0
3 years ago
Read 2 more answers
Several paint mixtures are made by mixing blue paint and white paint. Paint Colors Blue Paint White Paint Mixture A 5 cups 12 cu
Nesterboy [21]

Answer:

The mixture C is the correct option

Step-by-step explanation:

According to the given scenario, the calculation is as follows:

For Mixture A

Blue Paint - 5 cups

White Paint - 12 cups

The ratio between them is 5:12

For Mixture B

Blue Paint - 6 cups

White Paint - 6 cups

 The ratio between them is 6:6 = 12:12

It came by multiply the numerator and denominator by 12

For Mixture C

Blue Paint - 4 cups

White Paint - 12 cups

 The ratio between them is 4:12

For Mixture D

Blue Paint - 5 cups

White Paint - 6 cups

 The ratio between them is 5:6 = 10:12

It came by multiply the numerator and denominator by 12

As it can be seen that in all four mixtures the denominator is the same so for calculating the lowest ratio we have to see the small value in the numerator

As it can be seen that there is a small value of 4

hence, the mixture C is the correct option

5 0
3 years ago
Read 2 more answers
Hey everybody I have a quick math question but idk what the answer is! It would mean a lot if someone helped me. PS the pic is t
mote1985 [20]

Answer:

it would be 2.33 I divided it I hope I'm right :)

8 0
3 years ago
Other questions:
  • Chase plays the piano and cello. For every 2 hours he practices the piano, he practices the cello for 3 hours. If he practices t
    9·1 answer
  • What is the domain and range of the exponential function?
    10·1 answer
  • What is a scatter plot?<br> I somewhat know the answer, but I just need to know everything about it
    5·1 answer
  • The diameter of the larger circle is 10.5 cm. The diameter of the smaller circle is 4.5 cm. What is the approximate area of the
    10·1 answer
  • The price of 25 tickets is $2705 dollars. Find the price of 8 tickets​
    11·2 answers
  • Which of these is a simplified form of the equation 7z + 2 = 8 + 2z + 1z?
    15·2 answers
  • A class has an equal number of boys and girls. The boys all got 78% on a test and the girls all got 84%. What are the mean and s
    11·1 answer
  • By solving substitution y=4x-6<br> Y= 5x how I need steps
    14·1 answer
  • 188 asu students, faculty, and staff were randomly surveyed and asked if they have an asu parking decal, ride their bike, or the
    9·1 answer
  • Where is the blue dot on the number line?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!