Obtain an estimate for the following computation by rounding the numbers so that the resulting arithmetic can easily be performed by hand or in your head. Then, use a calculator to perform the computation. How reasonable is your estimate when compared to the actual answer? 359+558 Round the two numbers to the nearest ten. An estimate of the sum is:______. The actual sum is How reasonable is your estimate when compared to the actual answer? A. Not reasonable. The estimate seems too low compared to the actual answer B. Reasonable. The estimate seems a little tower compared to the actual answer. C Reasonable. The estimate sooms a little higher compared to the actual answer. D. Not reasonable. The estimate seems too high compared to the actual answer

Answers

Answer 1

Answer: C. Reasonable. The estimate sooms a little higher compared to the actual answer

Step-by-step explanation:

The actual answer to 359+558 is 917. On the other hand, 359 to the nearest ten is 360 while 558 to the nearest ten is 560. The addition of the numbers will be: = 360 + 560 = 920

The estimated answer is 920 while the actual number is 917. Therefore, the estimate is reasonable as the estimate sooms a little higher compared to the actual answer.


Related Questions

A rectangle is placed around a semi-circle. The width of the rectangle is 5cm. Find the area of the shaded region. use the value of 3.14 for pi

Answers

Answer:

i don't now to arrange thats

Question answer now fast all

Answers

Answer:

Kindly check explanation

Step-by-step explanation:

Given that :

Total number of marbles = 54

All marbles are red and blue

Fraction of blue = 1/3

Hence,

Number of Blue = 1/3 * 54 = 18

Hence,

Number of red = 54 - 18 = 36

Ratio of blue to total ;

18 : 54 = 1 : 3

Ratio of Red to total;

36 :54 = 2 : 3

Ratio of Red to blue :

36 : 18 = 2 : 1

Number of red = 36

Perimeter of 30 ft in an area of 14 ft what is the length and the width

Answers

Answer:                                                                    

14 and 1

Explanation:

14 + 14 + 1 + 1 = 30

14 x 1 = 14

The perimeter is the sum of all 4 sides. Divide the perimeter in half fo the some of one length and one width:

Length + width = 15

Area is length x width

Find 2 numbers that when added equal 15 but when multiplied equal 14

15 + 0 = 15, 15 x 0 = 0

14 + 1 = 15, 14 x 1 = 14

The answer is 14 ft long by 1 ft wide

WILL MARL BRAINLIEST THIS IS PT.3!!

Answers

Answer:

See problem 1 below.

Step-by-step explanation:

Problem 1.

1. <A, <D

Given

2. <1, <3

Given

3. BC is congruent to BC

Congruence of segments is reflexive.

4. ABC, DBC

AAS

what is the length of x of the side of the triangle below?

Answers

Answer:

9.1

Step-by-step explanation:

what is the length of x of the side of the triangle below?

1. Write an equation to determine the height, h, of the building.
Answer: 5^2 +h^2 = 102

2. To the nearest tenth, determine the height of the
building.

Answers

Answer:

8.7 m

Step-by-step explanation:

Hi there!

[tex]5^2+h^2=10^2[/tex]

To find the height of the building, we need to isolate h on one side of the equal sign. We will do this by performing inverse operations to both sides (ex. the inverse of addition is subtraction, the inverse of multiplication is division, etc.)

Firstly, we can simplify both sides by squaring 5 and 10:

[tex]25+h^2=100[/tex]

Now subtract both sides by 25 to cancel it out on the left side and isolate h²:

[tex]25+h^2-25=100-25\\h^2=75[/tex]

Now, take the square root of both sides to isolate h:

[tex]\sqrt{h^2} =\sqrt{75} \\h=8.7[/tex]

Therefore, the height of the building is 8.7 m when rounded to the nearest tenth.

I hope this helps!

Austin picks 14 apples from the tree in his backyard. He gives his grandmother 6 apples to make a pie. Which number sentence shows how many apples Austin has left

Answers

Answer: Since he had fourteen, and he gave away six of them, he has eight left.

Step-by-step explanation:

The number sentence shows the number of apples Austin has left is 14 - 6 and equal to 8.

What is a number system?

A way to express or represent numbers is through the number system.

The Number System includes any of the several sets of symbols and the rules for using them to represent numbers.

As per the given,

Total number of apples = 14

Number of apples that make a pie = 6

Left = 14 - 6 = 8

Hence "The number sentence shows the number of apples Austin has left is 14 - 6 and equal to 8".

For more about the number system,

https://brainly.com/question/22046046

#SPJ2

solve for x: 5x+9=39​

Answers

Answer:

5x+9=39

5x=39-5

5x÷5=30÷5

x=6

Will appreciate it :)

Answers

Answer:

Step-by-step explanation:

In order for lines to be parallel they have to have the same slope. The first 2 equations there are solved for 5y, so let's do that to the last one--solve it for 5y--and put them all in the same order (the order that the first one is in; they will all look identical then). Equation #2 in the same order as in #1: 5y = 3x - 4. Equation #3 then becomes 5y = 3x - 1. Equations #2 and 3 have the same slope.

Help pls . Thank you very much

Answers

Answer:

40.79 degrees

Step-by-step explanation:

Hope this helps

from the diagram the opposite is 4.9 and the hypothenus is 7.5

then sin x = 4.9/7.5

x = sin inverse of ( 4.5/7.5)

x = 40.79

Whats 5x=234 please answer i will brainliest if i can

Answers

Answer:

x = 46.8

Step-by-step explanation:

I assume you are trying to find the value of x.

[tex]5x=234.[/tex]

To find x, divide the answer by the coefficient. The quotient is the value of 'x.'

[tex]234/5=46.8[/tex]

Therefore, 46.8 is the value of x.

Remember: Whenever you see a coefficient and a variable together—5x, 7y, 3t—this means to multiply them.

uh hi i need help on this

Answers

Answer:

Angle 2 = 124 degrees

Step-by-step explanation:

Angles 1 and 2 are corresponding angles since the two lines are parallel.

We can put both numbers into an equation.

3x + 25 = 2x + 58

Subtract both sides by 2x which will give:

x + 25 = 58

Now, we can solve for x, which is:

x = 58-25 = 33

Put back x = 33 into angle 2.

Hence, angle 2 is 2*33 + 58 = 124

Answer:

m∠2 = 124 degrees

Step-by-step explanation:

By the definition of "Same Side Corresponding Angles" the 2 angles given are congruent to each other, therefore we can say;

3x + 25 = 2x + 58

x + 25 = 58

x = 58 - 25

x = 33

Now that we have x = 33, we can substitute 33 in for x, in equation given for angle 2 to find it's measure;

∠2 = 2(33) + 58

∠2 = 66 + 58

∠2 = 124

Therefore m∠2 = 124 degrees.

Hope this helps!

An infinite sheet of charge, oriented perpendicular to the x-axis, passes through x = 0. It has a surface charge density ?1 = -4.6 ?C/m2. A thick, infinite conducting slab, also oriented perpendicular to the x-axis occupiees the region between a = 2.8 cm and b = 4.5 cm. The conducting slab has a net charge per unit area of ?2 = 60 ?C/m2.
1) What is Ex(P), the value of the x-component of the electric field at point P, located a distance 6.3 cm from the infinite sheet of charge?N/C 2)
2) What is Ey(P), the value of the y-component of the electric field at point P, located a distance 6.3 cm from the infinite sheet of charge?N/C 3)
3) What is Ex(R), the value of the x-component of the electric field at point R, located a distance 1.4 cm from the infinite sheet of charge?N/C 4)
4) What is Ey(R), the value of the y-component of the electric field at point R, located a distance 1.4 cm from the infinite sheet of charge?N/C 5)
5) What is b, the charge per unit area on thesurface of the slab located at x = 4.9 cm??C/m2 6)
6) What is Ex, the value of the x-component of the electric field at a point on the x-axis located at x = 3.64 cm ?N/C 7)
7) What is ?a, the charge per unit area on the surface of the slab located at x = 2.8 cm??C/m2 8)

Answers

I have no clue man I’m sorry

What is a inequality to represent -2 and -5

Answers

Answer:

-2 > -5

Step-by-step explanation:

Since -2 is greater than -5 we use the greater-than sign to represent this relationship.

7/3+7/2-5/4
please answer correct answer will get brainlist answer tag​

Answers

Answer is 55 over 12 or 55/12

Answer:

Step-by-step explanation:

QUESTION 2
Find an equation of the line containing the given pair of points
(-4.0) and (-9, 3)
3 12
y = 3x-5
4 12
y = -3%-5
4. 12
- -
3 12
y=-3%-5
QUESTION 3

Answers

Is there more to the question

Which expression is equivalent to -3(y-5)
A. -3y-4
B -3y+4
C. -3y-12
D -3y+12​

Answers

Answer:

neither when you multiply them you get -3y+15 not 12

hope this helps

have a good day :)

Step-by-step explanation:

how can i solve the following
4x-3=2x+7

Answers

Answer:

x = 5

Step-by-step explanation:

Note the equal sign, what you do to one side, you do to the other. Isolate the variable, x.

Add 3 and subtract 2x from both sides of the equation:

4x (-2x) - 3 (+3) = 2x (-2x) + 7 (+3)

4x - 2x = 7 + 3

2x = 10

Next, isolate the x by dividing 2 from both sides of the equation:

(2x)/2 = (10)/2

x = 10/2

x = 5

5 is your answer for x.

~

Answer:

x=5

Step-by-step explanation:

4x-3=2x+7

Subtract 2x from each side

4x-2x-3=2x-2x+7

2x -3 = 7

Add 3 to each side

2x-3+3=7+3

2x = 10

Divide by 2

2x/2 =10/2

x = 5

PLEASE HELP ME ILL GIVE BRANLIEST I HAVE A BIT OF TIME LEFT

Consider the following dot plot. Of the following statements, which two characteristics of the dot plot make the median a better choice than mean to summarize the center of distribution?

Answers

Answer:

where is question? You are only showing answer.

How do I solve -4x > 50

Answers

divide the 50 by -4

x=12.5 or 25/2

Answer:

Hi, there your answer is [tex]x<\frac{-25}{2}[/tex]

Step-by-step explanation:

Step 1: Divide both sides by 4.

-4x /-4 > 50 /-4

x> -25 /2

Hope this Helps :)

sixteen less than z gives six.

Answers

Answer:

z = 22

Step-by-step explanation:

z - 16 = 6

z = 22

Hope this helped!

Algebra

z-16=6

z=22

what your problem in word form is saying is that sixteen less from z equals out to 6.

A survey asked buyers whether color, size, or brand influence their choice of cell phone. The results are below. How many people were influenced by brand

Answers

Answer:

wheres the photo

Step-by-step explanation:

A ball is thrown from an initial height of 4 feet with an initial upward velocity of 23 f/s. The ball's height h (in feet) after t seconds is given by the following. Find all values of t for which the ball's height is 12 feet.

Answers

Answer:

Time taken = 0.85 and 0.59 (Approx.)

Step-by-step explanation:

Given:

Initial height = 4 feet

Initial upward velocity = 23 f/s

Equation;

h = 4 + 23t - 16t² for h = 12 feet

Find:

Time taken

Computation:

h = 4 + 23t - 16t² for h = 12 feet

12 = 4 + 23t - 16t²

16t² -23t + 8 = 0

t = [-b±√b²-4ac] / 2a

t = [23±√23²-(4)(16)(8)] / 2(16)

t = [23±√529-512] / 32

t = [23±4.12]/32

Time taken = 0.85 and 0.59 (Approx.)

As a fraction in simplest terms, what would you multiply the first number by to get the second

first number - 26
second number -58
26•(blank)=58
please help

Answers

Answer:

2

Step-by-step explanation:

HELP PLZ!! The price of a radio was discounted 20% on the first day of a sale. The sale
price was then discounted an additional 20% on the second day.
What percent is the combined discount?

Answers

Answer:

combined discount is 40%

Answer:

first day =64%

the second day = 36%


Find f(-2) for f(x) = 5.34.

Answers

Answer:

5.34

Step-by-step explanation:

f(-2) requires that we change x with -2 in the f(x) equation, yet the f(x) =5.34 so it has no x, therefore f(-2) =5.34

All you do is put -2 in the x and 5.34 doesn’t have no x so it would just be f(-2) =5.34

Which statement is true?
Question 16 options:


A)
–|–45| = 45 and –|–96| = –96.


B)
|–45| = –45 and |–96| = –96.


C)
|–45| = 45 and |–96| = 96.


D)
|–45| = 45 and |–96| = –96

Answers

Answer:

I think D is the answer

Can you please give me Brainliest answer plz

Answer:

C is the correct answer.

Need help asap! Please and thank you

Answers

Answer:

the solutions are _2 and 3/4 so the answer is option D

Travis has hired Charlie and Dora to plant flowers . Dora can plant 150 flowers in the same time it takes Charlie to plant 120 flowers , which can be shown using the following relationship where d and c are the respective rates at which Dora and Charlie can plant flowers :

150 =120
——. ——
d. c

Also , Dora can plant 18 flowers more per day than Charlie
How many flowers can Charlie plant per day ?

Answers

Answer:

21 flowers

Step-by-step explanation:

because if dora can plant 18 plants then Charlie can plant 21 flowers

which expression is equivalent to the given expression?​

Answers

ln(2e/x)

ln2+ ln e -ln x

ln 2 + 1 - ln x

OPTION D is the correct answer

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