Mathematics High School

A numerical expression is evaluated as shown.



32 ÷ {57 – 49} × 4 + 27



Step 1: 32 ÷ 8 × 4 + 27

Step 2: 32 ÷ 32 + 27

Step 3: 1 + 27

Step 4: 28



In which step does a mistake first appear?



Answers

Answer 1

Answer:

step 2

Step-by-step explanation:

BODMAS they multiplied first instead of dividing

Related Questions

224 in 8 minutes. Use the unit rate to complete the table of values for the proportional relationship.

X. Y
2. ?
4. ?
6. ?

Answers

9514 1404 393

Answer:

  see attached

Step-by-step explanation:

It can be convenient to use mental arithmetic methods* to fill in this table.

Since the relationship is proportional the y-value for x=4 will be half that for x=8, so will be 224/2 = 112. Similarly, the y-value for x=2 will be half that for x=4, so will be 112/2 = 56.

Then the y-value for x=6 will be the sum of the y-values for x=2 and x=4, so will be 112 +56 = 168.

If you actually care to find the "unit rate," you can divide the y-value for x=2 by 2 to get the corresponding y-value for x=1: 56/2 = 28. The unit rate is 28.

_____

* Multiplication or division by 2 is simply a matter of doubling or halving. In most cases, it is easy to double a number, or to compute half of it. (If it isn't, you need to review your arithmetic facts.)

10 = -3y +5.8
Solve for y

Answers

Answer:

y=-1.4

Step-by-step explanation:

-3y+5.8=20

-3y=4.2

y=-1.4

Please help me on question 13.

Answers

Answer:

37°

Step-by-step explanation:

the rules of a bow theorem is the angles at the bottom are equal and the angles at the top are equal

The answer is 37° sorry if it’s wrong

can someone help me please

Answers

Answer:

c i think soory if wrong

Step-by-step explanation:

It is B, it does not lie in the solution

factor completely 3x2 + y

Answers

Answer:3 x 2 +y is 6

Step-by-step explanation:

I hope i helps if wrong sorry

Answer:

xy(3x + 1)

Step-by-step explanation:

I took the test

Carlos Measured the link of a book to be 21 cm the actual length of a book is 23cm which of these is closest to the percent error for Diego's measurements

Answers

Answer: 8.70%

Step-by-step explanation:

Percent error is calculated as:

= (Accepted value - Experimental value) / Accepted value × 100

= (23 - 21) / 23 × 100

= 2/23 × 100

= 8.70%

The percentage error is 8.70%



Please help.........

Answers

Answer:

Exponential growth

Step-by-step explanation:

Answer:

it shows growth

...

Hope this will help you

Step-by-step explanation:

..

Select the correct answer from each drop-down menu.
500
45°
520
In the figure, x=
y =
, and z=

Answers

Answer:

sdsd

Step-by-step explanation:

xyz

x2 - 2x + 2 = 0
solve each equation by graphing. if integral roots cannot be found estimate the roots by stating the consecutive integers between which the Roots lie.​

Answers

Answer:

Step-by-step explanation:

Let's solve x^2 - 2x + 2 = 0 using "completing the square:"

1.  Take the coefficient of x:  It is -2.

2.  Halve this, obtaining -1.

3.  Square this result, obtaining 1.

4.  Add 1, and then subtract 1, between -2x + 2:

    x^2 - 2x + 1 - 1 + 2 = 0

5.  Rewrite x^2 - 2x + 1 + 1 = 0 beginning with the square of a binomial

    (x - 1)^2 + 1 = 0, or (x - 1)^2 = -1

6.  Take the square root of both sides, obtaining x - 1 = ±i, or x = 1 ±i

7.  Write out the roots:  they are x = 1 + i and x = 1 - i (two complex, different roots).  No real roots, so the last command of this question is irrelevant.  The graph never touches the x-axis; the graph is in Quadrants I and II and is that of a parabola that opens up.

Which statement about the value of a credit report to lenders and borrowers is NOT true?

aCredit reports tell borrowers their likelihood of getting a loan, and their likelihood of getting a good rate.

bCredit reports always tell borrowers and lenders whether a borrower will be able to repay a loan.

cCredit reports tell lenders the risk that a borrower will not repay a loan.

dCredit reports tell borrowers and lenders about the borrower’s past performance on loans.

Answers

Answer:

Credit reports always tell borrowers and lenders whether a borrower will be able to repay a loan.

Step-by-step explanation:

The answer is right

What is y, when x = 7. y = 3x + 10
PLEAS HELP I NEED IT RN

Answers

Answer: y = 31

Step-by-step explanation:

y = 3x + 10

y = 3(7) + 10               Plug in the 7 for x, because it shows x = 7 in the question.

y = 21 + 10

y = 31

find the equation of the line that is perpendicular to this line and passes through the point (5,-3)

Answers

Answer:

y=-2x+5

Step-by-step explanation:

PLZ GUYS THIS IS REALLY HARD

Answers

lol, there are three.

Step-by-step explanation:

thanks for the points I guess.

Answer:

Im not sure, but I think the answer is 3.

Step-by-step explanation:

7(x-2)<2x+3 as a improper fraction

Answers

Answer:

-23/3

Step-by-step explanation:

sorry if i am wrong

-23/3 :)))))) i hope u have a nice day

please help

ABC = ADC . Find y.​

Answers

Answer:

y is 7

Step-by-step explanation:

The radius of a sphere is 7 cm. What is the sphere's volume? Round to the nearest tenth, and use 3.14 for π.

Answers

Answer:

1,436.8

Step-by-step explanation:

111. Explaim how you could find the area of
the figure below

Answers

there’s isn’t no photo.

ratio equivalent 2 numbers
10:12

Answers

5:6 is a equivalent ratio. Hope this helps. If you asking something different, just say in the comment.
100:120

you just have to multiply (or divide) both the numbers by the same number and you have an equivalent ratio :)

Factor 8m^6 - 64n^12p^15. don't waste points and show steps and factors. please

Answers

Answer:

8(m⁶ - 8n¹²p¹⁵)

Step-by-step explanation:

Given:

8m⁶ - 64n¹²p¹⁵

The only part that we can factor out is in the coefficients.  Because both terms use different variables, they can not be factored.  However, both terms are divisible by eight, so we can say it equals:

8(m⁶ - 8n¹²p¹⁵)

And that is all the factoring that can be done.

Evaluate the expression when x=6 and y=4 Explain how you calculated your answer
10y+x 2nd power

Answers

Answer:

Ans = 76

Step-by-step explanation:

10y + [tex]x^{2}[/tex]

=> 10 * 4 + [tex]6^{2}[/tex]

=> 40 + 36

=> 76

Hope it helps :)

-4 ( 6 - 2n ) = 30 + 8n

Please help me

Answers

n = no solution

-4 ( 6 - 2n ) = 30 + 8n
-24 + 8n = 30 + 8n
Subtract 8n from both sides
-24 = 30
This is invalid therefore no solution

sin x =
cos x =
tan x =
​

Answers

Sin x = b/c
Cos x = a/c
Tan x = b/a

PLEASE HELP!!! DISTRIBUTIVE PROPERTY

Answers

6(2x+4)=12
|
Multiply 6 with numbers in the parenthesis
|
12x +24=12
|
Subtract 24 to both sides
|
12x = 12
|
Divide 12 with both sides
|
Answer x=1

5e = 18.1 ---I gotta know what number the e is---
Please Explane Why you choosed that answer
A
e = 3.62

B
e = 36.2

C
e = 362

D
e = 3,620

Answers

Answer:

its A

dont trust the person who said b it will mess you up

Diego’s family car holds 14 gallons of fuel. Each day the car uses 0.6 gallons of fuel. A warning light comes on when the remaining fuel is 1.5 gallons or less.

Starting from a full tank, can Diego’s family drive the car for 25 days without the warning light coming on? Explain or show your reasoning.

I don't understand this and I need this quick

Answers

No the could not go 25 days without it coming on....if you multiply.6 gallons by 25 days you get 15 since the car only holds 14 gallons the car would be empty before the 25th day

Answer:

no

Step-by-step explanation:

Find the solution set of the inequality
8x−8≤−72.

Answers

Answer:

x≤-8

Step-by-step explanation:

When solving 8x-8≤-72, first add 8 to both sides of the inequality.

This leaves you with 8x≤-64.

Divide both sides by 8: 8x/8 and -64/8

This leaves you with x≤-8 as your solution.

The volume is ___ cubic centimeters.

Answers

Answer:

ghvdcbd sncbnvjdfhjkjjcvnjf

Step-by-step explanation:

fdjhxcvbdjfbvdfnvjfnmfgnjbmnnmklnbdfvjbfgjbndnvbfvfdhn

bvf bfvndfvnnbjg

vlxcv

b

v

b

gbgf

bn

fb

nn There hope this helps :>

Please anyone help!!

Answers

Answer:

4

Step-by-step explanation:

Answer:

your answer will be 4

Step-by-step explanation:

hope it helps you

have a great day!!

please help me i really need to do well on this test! show your work :)

Answers

Step-by-step explanation:

a point is 0,-2. if you test all the others the equations are not true, so that's the only one that works and makes both equations true.

−9x−6y=15
9x−10y=145
​
y=
x=

Answers

Answer:

Step-by-step explanation:

Adding the two equations together gives you

9x-10y-9x-6y=145+15

-16y=160

y=-10, using this value in 9x-10y=145 gives you

9x-10(-10)=145

9x+100=145

9x=45

x=5

So y=-10 and x=5

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