Evaluate the expression of the given value of the variable(s) -2x^3 -x^2 + 5x+2; x=-3

Answers

Answer 1
Huh? What grade is this?

Related Questions

Long tall tent company makes tents in the shape of a triangular prism’s the tent model above has a length of 7 feet a width of 6 feet and the base has a height of 4 feet the bases are equilateral triangle‘s why is the surface area of the tent will mark. Brainlest if right

Answers

Answer:

160 I'm pretty sure but I'm not sure

According to the survey. there are more Andoroid (A) users than Apple (I) users

(Inequalities or inequality) ​

Answers

Users tahn apple

Hope you get the answer.... ❤️ ❤️ ❤️ ❤️

2x2=4 because 2+2=4 and 2,4 bam got ur answer 4

Answers

Answer:

makes sense

Step-by-step explanation:

PLZZ HELPP ILL GIVE BRAINLIST

greater than, less than, equal to
Choose either >, < or = for each row.

Answers

Answer:

>

<

<

=

<

Step-by-step explanation:

Answer:

Step-by-step explanation:

1) >

2) <

3) <

4) =

5) <

8, find the inverse
1. f(x)= x + 12

Answers

Answer= F^-1(x)= x-12
Hope it helps

Look at the line segment that is graphed below.
What is the length of PQ¯¯¯¯¯, rounded to the nearest tenth?
a) 5.4
b) 11.2
c) 13.5
d) 19.0

Answers

Answer:

B

Step-by-step explanation:

Eva bought one share of a company's stock for $42 on Monday. Over the next two days, the
value of the stock changed, as described below.
• Change in value on Tuesday: -$15
• Change in value on Wednesday: +$15
Which number line best represents the value of Eva's stock over the three-day period?

Answers

I don’t see a number line, but whatever says that the stock had no increase or decrease is your best bet.

Explanation: we can see it does have a decrease, but the increase the next day overrides it and turns the stock addition to $0

Which of the following is equivalent to 4x - 3x?
А 7х
B X
C -1
D 1

Answers

Your answer will be be because when you subtract 314 is one ask but instead of one actually just put one

The resistance, R (in ohms), of a wire varies
directly with the length, L (in cm), of the
wire, and inversely with the cross-sectional
area, A (in cm2). A 500 cm piece of wire with
a radius of 0.2 cm has a resistance of 0.025
ohm. Find an equation that relates these
variables.

Answers

Answer:

The equation is: [tex]R = \frac{L}{A}[/tex]

Step-by-step explanation:

The resistance, R (in ohms), of a wire varies directly with the length, L (in cm), of the wire, and inversely with the cross-sectional area, A (in cm2).

This means that we want to find an equation for R, which is a fraction.

Since it varies directly with the length L, L is the numerator.

Since it varies inversely with the cross-sectional area, A is the denominator.

So the equation is:

[tex]R = \frac{L}{A}[/tex]

Answer:

R ∝ L/ A

R = K L/ A

0.025= 500K/0.126

the constant, K=6.3 X 10^-6

Step-by-step explanation:

Step 1

The resistance, R (in ohms), of a wire varies directly with the length, L (in cm), of the wire, and inversely with the cross-sectional

area, A (in cm2)  is written mathematically as

R ∝ L/ A

Introducing the constant of proportionality,K,  we have

R = K L/ A

So given that s  500 cm piece of wire with  a radius of 0.2 cm has a resistance of 0.025 ohm.

We would First find area , since radius was given

Area = πr²

= 3.142 x 0.2²= 0.126cm²

Step 2

With our equation , R = K L/ A, puting all the necessary variables, we have

R = K L/ A

0.025= 500K/0.126

Solving for K

0.025= 500K/ 0.126

(0.025 X 0.126)/500 = K

K=6.3 X 10^-6

Write each ratio in simplest form. 25 cm to 100 cm​

Answers

i hope it helps you.

8 subtracted from v pls help me get the answer

Answers

I’m probably wrong but maybe it’s 2 to the 3rd power again I’m probably wrong

Ahmad wants to practice free-throws. He estimates the distance from the free-throw Line to the hoop and marks it with chalk. Ahmad’s estimate was 13.5 feet. The actual Distance should be 15 feet. Find the percent of error.

Answers

Answer: 10%

Step-by-step explanation:

The difference between his estimated and actual distance is 15 - 13.5 = 1.5

The percentage of error is the difference divided by the actual value.

1.5÷15 = 0.10

Converted to a percentage, it is 10%

Answer:

10%

Step-by-step explanation:

Which lines are parallel

Answers

Answer:

Blue and Red line

Step-by-step explanation:

Hope I helped!

Answer:

The blue and the pink lines are parallel

Step-by-step explanation:

because they have the same slope

Dave and 4 of his friends meet for breakfast. Each of the 5 people will pay for their own meal. They agree to divide the tip equally. The total for the breakfast was $80.00. The group will add a tip of 15% of the total. Each person's portion of the tip will be how much?

Answers

Answer:

$2.40

Step-by-step explanation:

80x0.15=12

12/5=2.4

What is the area of the triangle? 13 5 12 units?​

Answers

Answer:

78

Step-by-step explanation:

you have to multipy 13 and 12 then divide it by 2.(13*12=156/2=78)

What is the constant of proportionality for the relationship shown in the table? x 2 4 6 8 y 1 2 3 4
1/2
2
or not proportional

Answers

Answer:

1/2

Step-by-step explanation:

Given

x 2 4 6 8

y 1 2 3 4

Required

Determine the constant of proportionality (k)

The relationship between x and y is:

[tex]y = kx[/tex]

When y = 2, x = 4;

So, we have:

[tex]2 = k * 4[/tex]

[tex]2 = 4k[/tex]

[tex]4k = 2[/tex]

Make k the subject

[tex]k = \frac{2}{4}[/tex]

[tex]k = \frac{1}{2}[/tex]

Hence, the constant of proportionality is 1/2

Answer:

1/2

Step-by-step explanation:

divide each one by two

The list shows the amount of each ingredient Charlotte used to make 3 servings of macaroni and cheese.

• 12 ounces of macaroni
• 1 egg
• 2 cups of milk
•2 1/ 2 cups of cheddar cheese

Based on this information, which statement is NOT true?
A. To make 24 servings, Charlotte should use 96 ounces of macaroni.
B. To make 9 servings, Charlotte should use 8 cups of milk.
C. To make 6 servings, Charlotte should use 5 cups of cheddar cheese.
D. To make 12 servings, Charlotte should use 4 eggs.

Answers

D because 3-1 12 divided by 3 is 4

True/false: x=7 DOES NOT satisfy the inequality x>7

Answers

The answer is true because in order for x to be greater than 7, it would have to be 8 or above.

Which inequality below is equivalent to
3x-y>4

Answers

where are the answer choices lol
Could you show the optionsss

Susan bought 12 ounces of candy. How many grams did she buy? show your work (please!!!!!!!!!!!!)


Im gonna fail ;_;

Answers

Answer:

The anwser is 340.194

Step-by-step explanation:

I knew the anwser because 1 ounce is 28.3495 then I times that by 12

−|−39| =
|−44|+5 =
50−|−18| =

Answers

Answer:

-39

49

32

Step-by-step explanation:

⁄(⁄ ⁄•⁄ω⁄•⁄ ⁄)⁄

Answer:

1. -39

2. 49

3. 32

Step-by-step explanation:

absolute values are always positive!!!

|-39| = 39 but since there is a minus sign outside the lines it is -39

|-44| = 44+5= 49

And 50 - 18 = 32 (|-18| = 18)

please help with question ​

Answers

Try 6 I honestly have no idea but please try 6

Emily and Zach read a total of 32 books in four months. Emily read 12 books. Which equations
shows x, the number of books Zach read?
A 32 + x = 12
B X = 12 - 32
C X + 32 = 12
D 12 + x = 32

Answers

Answer:

D

Step-by-step explanation:

you take away 12 from the total and you'll find how many Zach read (20) then 12+20=32

Answer:

______________________,D_______________

y=(x + 2)² + 2
Graph

Answers

Answer:

use desmos___.com it should have a grapghing calculator

Step-by-step explanation: instead of using y put f(x) when u do


In a bag of 32 MnM's, there are 4 orange, 7 yellow, 6 green, 6 brown and 5 red and 4 blue. Find the probability that a blue is chosen, replaced and then a green is chosen

Answers

Answer:

p(B) = 4/32 = 1/8

p(G) = 6/32 = 3/16

Find the common difference of the arithmetic sequence 14,7,0 ....

Answers

Answer:

Step-by-step explanation:

the formula for common difference is

d = aₙ - aₙ₋₁

So,

d = a₂-a₁ = a₃-a₂

d =7-14 & d=0-7

d = -7    & d = -7

If ab and cd are congruent what is the measure of chord ab?

Answers

Answer:

the measure of cord ab will be 4 unit.

because cord ab and cord cd are congruent

Consider the following work breakdown structure: Time Estimates (days) Activity Precedes Optimistic Most Likely Pessimistic Start A,B - - - A C,D 44 50 56 B D 45 60 75 C E 42 45 48 D F 31 40 49 E F 27 36 39 F End 58 70 82 What is the probability that the critical path for this project will be completed within 210 days

Answers

Answer: the probability that the critical path for this project will be completed within 210 days is 0.99725

Step-by-step explanation:

Given that;

Work break down is;  

 Time Estimates (days)

Activity  Precedes  Optimistic  Most Likely  Pessimistic  

Start          A,B              -                    -                   -  

A               C,D             44                50                 56  

B               D                45                60                  75  

C               E                42                45                   48  

D               F                31                 40                   49  

E               F                27                36                   39  

F              End            58                70                   82

we know that;

Expected Time = ( Optimistic Time + ( 4 × most likely time) + pessimistic time) / 6

and

Variance = [( pessimistic time - Optimistic time) / 6 ]²

so

ACTIVITY              EXPECTED TIME                                 VARIANCE

A                   (44 + (4 × 50) + 56) / 6 = 50                    ((56 - 44) / 6)² = 4

B                   (45 + (4 × 60) + 75) / 6 = 60                    ((75 - 45) / 6)² = 25

C                  (42 + (4 × 45) + 48) / 6 = 45                    ((48 - 42) / 6)² = 1

D                   (31 + (4 * 40) + 49) / 6 = 40                     ((49 - 31) / 6)² = 9

E                   (27 + (4 * 36) + 39) / 6 = 35                     ((39 - 27) / 6)² = 4

F                   (58 + (4 * 70) + 82) / 6 = 70                     ((82 - 58) / 6)² = 16

ACTIVITY     DURATION      ES        EF        LS        LF        SLACK

A                   50                      0        50         0         50            0

B                   60                      0        60        30        90           30

C                   45                     50       95        50        95            0

D                   40                     60      100        90       130          30

E                    35                    95       130        95       130           0

F                    70                    130     200       130      200           0

FORWARD PASS:

ES = MAXIMUM EF OF ALL PREDECESSOR ACTIVITIES; 0 IF NO PREDECESSORS ARE PRESENT.

EF = ES + DURATION OF THE ACTIVITY.

CRITICAL PATH = PATH WITH THE LONGEST COMBINED DURATION VALUE AND 0 SLACK.

CRITICAL PATH = ACEF

DURATION OF PROJECT = 200

Now the probability

VARIANCE OF CRITICAL PATH = SIGMA(VARIANCE OF THE CRITICAL PATH) = 25

STANDARD DEVIATION OF CRITICAL PATH = SQRT(VARIANCE OF CRITICAL PATH) = 5

EXPECTED TIME = DURATION OF THE PROJECT = CRITICAL PATH = 200

DUE TIME = 210

Z = (DUE TIME - EXPECTED TIME) / STANDARD DEVIATION OF CRITICAL PATH)

Z = (210 - 200) / 5 = 2

Now form the Normal Distribution Table;

Z = 0.99725

Therefore, the probability that the critical path for this project will be completed within 210 days is 0.99725

for a fixed voltage, the current in an electrical circuit varies inversely as the resistance in the circuit. If a certain has a current of 3.5 amps when the resistance is 110 ohms, find the current when the resistance is doubled.​

Answers

Answer:  1.75 amps

Step-by-step explanation:

V (voltage) = I (current) · R (resistance)

              V =    3.5 (110)

                 =   385

When Resistance is doubled, the current is cut in half.

             V = I R

         385 = I (2 · 110)

         [tex]\dfrac{385}{220}=\text{I}[/tex]

         1.75 = I          

Brittany has $200 to spend on landscaping for her flowerbeds. She knows she wants to buy a $65 planter and a variety of flowering plants. What is the maximum number of flowers she can buy if each one costs $15? Make sure to write in the y=mx+b form.

Answers

Answer:

y = 15x + 65, or y = 15(9) +65

Step-by-step explanation:

So first, subtract $65 from $200 because Brittany is already using $65 for a plantar.  For y = mx+b, $65 would be the b, because b is the fixed number, the number that cannot be changed. At this point, you are at y = mx + 65.

Now you are left with $135. Brittany wants to buy flowers with the remaining money. What you can do is division to see how many times $15 will go in $135  because with one flower = $15, we want to see the maximum number we can spend. If you do the division, you will see that $15 goes into $135 9 times, meaning you can buy 9 flowers, because each flower is $15, maxing out the remaining money you have.

In equation form, $15 would be the m, because m is what you multiply by and x is the independent variable, or the number of flowers Brittany will buy.  

y = 15x + 65, or y = 15(9) +65

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