Review the following problem and answer the questions that follow.

Problem: 23 - (-2)
Answer: 21
1) Where did I make the mistake?
2) What suggestion would you give me to avoid making that same mistake in the
future?

Answers

Answer 1

you forgot the main part!

Answer 2

the correct answer is 25

.

your sign will be + not - because when you multiply two negative signs It will be positive


Related Questions

what are the coefficients of the equation y=x^2+5x+6

Answers

Answer:

1, 5

Step-by-step explanation:

a numerical or constant quantity placed before and the variable in an algebraic expression (e.g. 4 in 4x y).

Answer: 1 and 5

Step-by-step explanation:

what is
{Review} 8 x 9 = *

This is a required question
4. {Review} 12 x 4 = *
5. {Review} 7 x 8 = *
6. {Review} 6 x 3 = *
7. {Review} 9 x 5 = *
8. {Review} 6 x 8 = *
9. {Review} 27 ÷ 3 = *
10. {Review} 36 ÷ 6 = *
11. {Review} 132 ÷ 12 = *
12. {Review} 110 ÷ 11 = *
13. {Review} 28 ÷ 4 = *
14. {Review} 35 ÷ 7 = *
15. {Review} 937 + 593 = *

This is a required question
16. {Review} 9,004 - 3,526 = *
17. {Review} 36 x 7 = *
18. {Review} 48 ÷ 4 = *
19. {4.NBT.A.1} __________ x 10 = 300 *
20. {4.NBT.A.1} 3,000 x 10 = __________ *
21. {4.NBT.A.1} Which numbers make this equation true? __________ x 10 =__________ *
300,000 ; 30,000
30,000 ; 300,000
30,000 ; 30,000
22. {4.NBT.A.3} Round 5,389 to the nearest 10. *
23. {4.NBT.A.3} Round 124,389 to the nearest 1,000. *
24. {4.NBT.A.3} Round 2,748,091 to the nearest 100,000. *
25. {4.NBT.A.2} Fill in the blank. 73,458 is ______ 233,101 *
greater than
less than
equal to
26. {4.NBT.A.2} Fill in the blank. 57,388 is ______ 75,388 *
greater than
less than
equal to
27. {4.NBT.A.2} Fill in the blank. 1,432,748 is ______ 1,432,478 *
greater than
less than
equal to
28. {4.NBT.A.2} Write the number three hundred forty-two thousand, five hundred seven in expanded form. *
300,000 + 40,000 + 2,000 + 500 + 7
300,000 + 4,000 + 200+ 500 + 7
30,000 + 4,000 + 2,000 + 500 + 7
29. {4.NBT.A.2} Write the number three hundred forty-two thousand, five hundred seven in standard form. *

Answers

Answer:

8 x 9 = 72

4. 48

5. 56

6. 18

7. 45

8. 48

9. 9

10. 6

11. 11

12. 10

13. 7

14. 5

15. 1530

16. 5478

17. 252

18. 8

19. 30

20. 30,000

21. 30,000; 300,000

22. 5,390

23. 124,000

24. 2,700,000

25. less than

26. less than

27. greater than

28. 300,000 + 40,000 + 2,000 + 500 + 7

29. 342,507

Step-by-step explanation:

For the rounding numbers, if the hundredth or tenth place is not 5 or more the number does not change.

<3 help mi i’m down bad

Sol Levin sold 22 pairs of shoes each day.
Monday through Wednesday, 28 pairs on Thursday,
and 31 on Friday. How many shoes must he sell on
Saturday to average 29 pairs sold for the 6 days
he worked during the week?

Answers

Answer:

Sol Levin needs to sell 49 pairs shoes on Saturday.

Step-by-step explanation:

29 x 6 = 174

(22 x 3) + 28 + 31 + x = 174

66 + 28 + 31 + x = 174

94 + 31 + x = 174

125 + x = 174

(125 - 125) + x = (174 - 125)

x = 49

I need to know the answer to the two question

Answers

Answer:

Question 1:

78 - 5 - 7

Question 2:

[tex] - \frac{1}{6} [/tex]

Candice recorded outdoor temperatures as -5°C, 2°C and 1°C. Which of the following correctly compares the three temperatures?​

Answers

Answer:

2°C

Step-by-step explanation:

outdoor temperature

What is the solution to the equation below? Round your answer to two decimal places.
4e^2x + 16 = 36
A. X = 3.22
B. x = 0.80
C. x = 1.61
D. x = 1.39​

Answers

9514 1404 393

Answer:

  B. x = 0.80

Step-by-step explanation:

We suspect you want the solution to the exponential equation ...

  4e^(2x) +16 = 36

  e^(2x) +4 = 9 . . . . . . . . . . . divide by 4 (because we can)

  e^(2x) = 5 . . . . . . . . . . . . . . subtract 4

  2x = ln(5) . . . . . . . . . . . . . . . take natural logs

  x = ln(5)/2 ≈ 0.804719 . . . . .divide by the coefficient of x

  x ≈ 0.80

In a football game, what is the probability that one team will tie and lose?

Answers

Answer:

1/3

Step-by-step explanation:

The answer correct answer would be 1/3

Let x = 0.99999....Do you think that x < 1 or x = 1?

Answers

Answer:

x<1

Step-by-step explanation:

why? because is still 0....

Subtract. Write your answer in simplest form.
5/- 10/5

Answers

Answer:

-1/10

Step-by-step explanation:

(5/(-10))/5 = -(5/10)/5 = 1/10

(Hopefully this helped you out!)

prove that 1³+2³+....n³=n²(n+1)²/4. principle of mathematics induction​

Answers

The Simplified Question:-

[tex]\sf 1^3+2^3\dots n^3=\dfrac{n^2(n+1)^2}{2}[/tex]

[tex]\\ \sf\longmapsto 1^3+2^3+\dots n^3=\left(\dfrac{n(n+1)}{2}\right)^2[/tex]

Solution:-

Let

[tex]\\ \sf\longmapsto P(n)=1^3+2^3\dots n^3=\left(\dfrac{n(n+1)}{2}\right)^2[/tex]

For n=1

[tex]\\ \sf\longmapsto P(1)=\left(\dfrac{1(1+1)}{2}\right)^2[/tex]

[tex]\\ \sf\longmapsto P(1)=\left(\dfrac{1(2)}{2}\right)^2[/tex]

[tex]\\ \sf\longmapsto P(1)=\left(\dfrac{2}{2}\right)^2[/tex]

[tex]\\ \sf\longmapsto P(1)=(1)^2[/tex]

[tex]\\ \bf\longmapsto P(1)=1=1^3[/tex]

Let k be any positive integer.

[tex]\\ \sf\longmapsto P(k)= 1^3+2^3\dots k^3=\left(\dfrac{k(k+1)}{2}\right)^2[/tex]

We have to prove that p(k+1) is true.

consider

[tex]\sf 1^3+2^3\dots k^3+(k+1)^3[/tex]

[tex]\\ \sf\longmapsto \left(\dfrac{k(k+1)}{2}\right)^2+(k+1)^3[/tex]

[tex]\\ \sf\longmapsto \dfrac{k^2(k+1)^2}{4}+(k+1)^3[/tex]

[tex]\\ \sf\longmapsto \dfrac{k^2(k+1)^2+4(k+1)^3}{4}[/tex]

[tex]\\ \sf\longmapsto \dfrac{k+1)^2\left\{k^2+4k+4\right\}}{4}[/tex]

[tex]\\ \sf\longmapsto \dfrac{(k+1)^2(k+2)^2}{4}[/tex]

[tex]\\ \sf\longmapsto \dfrac{(k+1)^2(k+1+1)^2}{4}[/tex]

[tex]\\ \sf\longmapsto \left(\dfrac{(k+1)(k+1+1)}{2}\right)^2[/tex]

[tex]\\ \sf\longmapsto (1^3+2^3+3^3\dots k^3)+(k+1)^3[/tex]

Thus P(k+1) is true whenever P(k) is true.

Hence by the Principal of mathematical induction statement P(n) is true for [tex]\bf n\epsilon N.[/tex]

Note:-

We can solve without simplifying the Question .I did it for clear steps and understanding .

Learn More:-

https://brainly.com/question/13253046?

https://brainly.com/question/13347635?

Answer:

Step-by-step explanation:

[tex]1^3=1=\dfrac{1^2*(1+1)^2}{4} =\dfrac{4}{4} =1\\\\\\\displaystyle \sum_{i=1}^{n+1}\ i^3=(\sum_{i=1}^{n}\ i^3) + (n+1)^3\\\\\\=\dfrac{n^2*(n+1)^2}{4} +(n+1)^3\\\\\\=(n+1)^2*(\frac{n^2}{4} +n+1)\\\\\\=(n+1)^2*\dfrac{n^2+4n+4}{4} \\\\\\=\dfrac{(n+1)^2*(n+2)^2}{4}[/tex]

In a group 40% like football ,70% like cricket and 30% like both games

Answers

Answer:

40%

Step-by-step explanation:

40+30+70=140

180-140= 40

Write 7 hundred as a decimal​

Answers

Answer:

Step-by-step explanation:

7/100 as a decimal is 0.07.

Answer:

7.00

Step-by-step explanation:

To get a decimal, you move the decimal point to the left twice. If you move the decimal point two times to the left on 700, you would get 7.00.

Explore
Drag the digits 0 to 9 to the boxes to create an original
rectangle and a scaled copy.
2
9
0
8

Answers

Answer:

I don’t understand this

Step-by-step explanation:

please help Dave drives to work. While driving the car over nine days, he observes his daily average speed and lists it in the table below. Day Average Speed (MPH) 1 45 2 62 3 44 4 70 5 59 6 66 7 54 8 63 9 67 The median speed at which Dave drove to work was __________. 63 miles per hour 59 miles per hour 62 miles per hour 58.89 miles per hour

Answers

The median speed at which Dave drove to work was 62 miles per hour.

To find the median speed at which Dave drove to work, we need to arrange the average speeds in ascending order and determine the middle value.

Sorting the average speeds in ascending order:

44, 45, 54, 59, 62, 63, 66, 67, 70

Since we have nine values, the median will be the middle value when the data is arranged in ascending order. In this case, the fifth value, which is 62, represents the median speed at which Dave drove to work.

Dave drove to work at a median speed of 62 miles per hour as a result.

for such more question on median

https://brainly.com/question/14532771

#SPJ8

2. A doctor treated 2000 patients over a period of time. If he worked for 5 hours a day and spent 15 minutes on each patient how many days did the doctor spend to treat all patients?

Answers

Answer:

The answer is 6000 days.

F(x) = (x-2)(x + 1)
X+1
Which statements describe the end behavior of the graph of the function shown? Check all that apply.
As x,
y1.
As x,y".
As x,y -—-.
As x,y 1.
As x,y.
As x + y -0.

Answers

Answer:

the second and the last one

Step-by-step explanation:

answer was revealed on edg after i took quiz

The option (2) As x → ∞, y → ∞, and option (6) As x → –∞, y → –∞ are correct if the function f(x) = (x - 2)(x + 2)/(x + 1).

What is a function?

It is defined as a special type of relationship, and they have a predefined domain and range according to the function every value in the domain is related to exactly one value in the range.

We have a function shown in the picture.

f(x) = (x - 2)(x + 2)/(x + 1)

The above function is a fractional function:

The denominator of the function cannot be zero:

x + 1 ≠ 0

x ≠ -1

From the graph of a function:

If x → ∞, y → ∞

If x → –∞, y → –∞

Thus, the option (2) As x → ∞, y → ∞, and option (6) As x → –∞, y → –∞ are correct if the function f(x) = (x - 2)(x + 2)/(x + 1).

Learn more about the function here:

brainly.com/question/5245372

#SPJ5

Which expression can be used to find the slope of a line containing the points (–3, 2) and (7, –1)?
A. (Image 092552)
B. (Image 092607)
C. (Image 092618
D. (Image 092630)

Answers

Answer:

C. (Image 092618

Step-by-step explanation:

[tex]slope = \frac{y_{2} - y_{1} }{x _{2} - x_{1} } [/tex]

y1 is 2

y2 is -1

x1 is -3

x2 is 7

substitute:

[tex]slope = \frac{ - 1 - 2}{7 - ( - 3)} [/tex]

(25x3) + (10x3) is my question i dont know the answer

Answers

Answer:

75+30=105....................

add 8+5
think of a number path start at 8 add 2 to make 10​

Answers

Answer:

- Each sum which is larger than 10 can be found by first making a 10. For example, to find 8 + 5, we can write. \begin{align} 8+5 &= 8 + (2+3) \\ &= (8+2) + 3 \\ &= 10 + 3 \\ &= 13

Step-by-step explanation:

Adding 9 to another single digit number can also be done by first making a 10. For example.

- Hope this helped ^^

what is 15 times 7/5 compared to 15 equal?

Answers

Answer:

I do not know

Step-by-step explanation:

Jimmy's dog weighed 60 pounds 4 months ago. Since then his weight has increased by 6% How much does Jimmy's dog weigh now

Answers

Answer: 3.6

Step-by-step explanation:

Answer:

63.6 pounds

Step-by-step explanation:

Jimmy's dog's weight was 60 pounds 4 months ago and now it is weighing 6% heavier.

So 6% of 60 is

[tex]\frac{x}{60} *100=6[/tex]

x=360/100

x=3.6

So Jimmy's dog weighs 60+3.6=63.6 pounds

Describe a sequence of translations, rotations, and reflections that takes Polygon P to Polygon Q.

Answers

Step-by-step explanation:

hope it is helpful for you

Answer all questions olve the following logarithmic ec 2 log10 x + log103 = log10 75
[tex]2 log_{10}x + log_{10}(3) = log_{10}(75) [/tex]






Answers

Step-by-step explanation:

We can rewrite the left-hand side as

[tex]2\log{x} + \log{3} = \log{3x^2}[/tex]

Here, we used the following properties of logarithms:

[tex]\log{x^a} = a\log{x}[/tex]

[tex]\log{ab} = \log{a} + \log{b}[/tex]

We can then write

[tex] \log{3x^2} = \log{75} \Rightarrow 3x^2 = 75[/tex]

or

[tex]x = 5[/tex]

Solve the equation. 14 = a – 8

Answers

1
4
=


8
14
=
a

8
14=a−8
1
4
+
8
=


8
+
8

=
2
2

Answer:

[tex]14 = a - 8 \\ \\ - a = - 8 - 14 \\ \\ - a = - 22 \\ \\ a = 22[/tex]

Whats the answer for this question

Answers

Answer:

m+5

Step-by-step explanation:

4m+5-3m

1m+5

Britney bought 2 apples, 5 bananas, and 8 oranges at the grocery store.

Which is the ratio of apples to bananas written as a decimal?

Answers

Answer:

2 apples: 5 bananas: 8 oranges

Final answer: 1 apple: 2,5 bananas ( divide by 2 )

Answer:

D.0.8

Step-by-step explanation:

The ratio in mathematics indicates how many times one number contain another. To find this ratio you must make a division of both. numbers. For example the ratio X to Y is X/Y.

As there are 4 apples to 5 bananas, the ratio of apples to bananas is:

4/5=0.8

In the coordinate plane, plot AB¯¯¯¯¯¯¯¯ and CD¯¯¯¯¯¯¯¯ given by the points A(−4, 5), B(−4, 8), C(2, −3), D(2, 0)

Answers

9514 1404 393

Answer:

  see attached

Step-by-step explanation:

The x-coordinate is the same in each pair of points, so the line segment will be a vertical line segment 3 units long.

A recipe calls for 3 cups of pecans for every 5 cups of walnuts. How many cups of pecans should be added to 8 cups of walnuts?

Answers

Answer:

4.8

Step-by-step explanation:

3:5  

3/5 : 1

8(3/5):1(8)

4.8:8

Here is a circle, centre O, and the tangent to the circle at the point (-3, 4) on the circle. У P (-3, 4) X -5 O Oา Find an equation of the tangent at the point P. Give your answer in the form y = ax + b where a and b are both fractions with denominator 4. ​

Answers

Answer:

[tex]y=\frac{3}{4}x+\frac{25}{4}[/tex]

Step-by-step explanation:

when a line is tangent to a circle, it is perpendicular to the line from the center of the circle to the intersection of the line and the circle. so first we are going to find the slope of the line in the circle.

to find the slope use the formula [tex]\frac{y_2-y_1}{x_2-x_1}[/tex]

[tex]\frac{4-0}{-3-0}=\frac{4}{-3}=-\frac{4}{3}[/tex] so the slope is -4/3

the slope of the line perpendicular to this is the opposite reciprocal: 3/4 so now we have y= 3/4 x +b, to find b plug in the point (-3,4) to get 4=-9/4 +b, b=25/4 the equation is y=3/4 x +25/4

(2x-5)3 =Alguien sabe cual es el resultado de esta operación

Answers

X=4 ?? I think that’s the answer

Answer:

6x - 15

Step-by-step explanation:

(2x - 5)3

3(2x) - 3(5)

6x - 15

Other Questions
what is n (AUB) if (A)=25,n(B) = 10 and BCA I need help with this math question.x^3-8x^2 2 questions *************** Everyone help me please!!!!!!I will give you the brainliest if you answers my questions very good and excalty:)))))))) huhuhu I needing your answers now What is 1,025 divided by 68 Which is an example of the environment affecting gene expression?a recessive trait appearing in a future generationsome genes being turned off in warm temperaturesa trait not being seen in the first generationthe offspring of a red and white flower being pink E. Sandi is suspected of receiving stolen goods. The police go to her houseand ask Claire, her roommate, if they can search the house. Claire givesthem permission, and they find stolen items in Sandi's dresser.PLZ HELPdoesnt the roommate only have permission to let the officers look through her stuff? Qu pases empiezan con la letra 'C? -3, 31, 11, 5.5, -60/-11Order From least to greatest 6) find HJ8)find IK what does esperanza learn about herself and the kinds of friends she wants to have. n a classic example of this type of trait: the arms of a human, the legs of a cat, the flippers of a whale, and the wings of a bat, all have similar structures as seen in the picture above. Each of the structures serves a unique purpose for the different organisms and their lifestyles. However the similarity between the structures implies that they were derived from a common ancestor. What kind of trait is being described in this example Which of the following sets contains multiples of six?{1, 6}{2, 3}{4, 9}{12, 18} Federal system may be disadvantageous for the countries if not handled properly .Justify the statement with approprite logics. What is the sum of all the positive integers from 24 to 102 1. According to Huntington, what makes America different from European nations? What does thiscause in America approximately every 60 years? Write a numerical or algebraic expression for each verbal phrase .Seven fewer than a number?Alice rented bowling shoes for $3.25 and played five games at $2 each write evaluate an expression for the total coast of bowling? A sample of gas occupies 15.0 L at a pressure of 2.00 atm and a temperature of 27 degrees Celsius. If the pressure is lowered to 1.00 atm, and the temperature is raised to 127 degrees Celsius, what would be the new volume of the gas sample Make a list of what is meaningful to you. (Has to be at least ten things if u want brainliest!!! ) ILL GIVE 50 POINTS IF U ANSWER NOWChris wrote a few steps to describe how carbon circulates between the ground and living organisms.Step 1. Trees absorb carbon dioxide in the air and use it to make their own food using photosynthesis.Step 2. When plants or animals die, they are broken down by decomposers and their carbon returns to the soil.Step 3. Carbon stays in the ground for long-term storage as fossilized carbon.If step 1 is removed, which statement best describes the effects of this missing step on the carbon cycle? More carbon is stored in the ground for long-term storage. Less carbon is available for plant and animal growth. More carbon is stored in plants instead of the ground. There are more fossil fuels available for energy use.