Use mental math to find the product

0.4• 3.29•25

Answers

Answer 1

Answer:

32.9

Step-by-step explanation:


Related Questions

I need help with this math problem
8 divided 2(2+2)=

Answers

Answer:

16

Step-by-step explanation:

8 ÷ 2(2+2)

Pemdas

Parentheses first

8 ÷ 2(4)

Multiply and divide from left to right

4(4)

16

Value of

8 divided 2(2+2) = 16

Given,

8 divided 2(2+2)

Following the BODMAS rule:

The BODMAS rule follows the order of the BODMAS acronym, in which B – Brackets, O – Order of powers or roots, D – Division, M – Multiplication A – Addition, and S – Subtraction.

The BODMAS rule states that mathematical expressions with more than one operation need to be solved from left to right inside the order of BODMAS.

Hence,

In the given expression parenthese will be opened first and then division will be applied .

8 divided 2(2+2)

= 16

= 16

Know more about BODMAS,

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2.3a + 0.8a
how do i solve this

Answers

Answer:

2.3a + 0.8a =

2.3

+ 0.8

________

3.1

________

So therefore, 2.3a + 0.8a = 3.1a

GIVING BRAINLIEST i hate math :(

Answers

Answer:

i think somebody invented math just so he could torture people

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

help is needed please!!

Answers

the answer is 201 hope this helps

1. The square of a number equals nine times that number. Find the number.
2. Suppose that four times the square of a number equals 20 times that num-
ber. What is the number?
3. Twice the square of the sum of a number and 3 is 98. Find the number.

Answers

Answer:

Step-by-step explanation:

The answer of 1 question is 9 because square of 9 is 81 and 9 x 9 times is 81

Help me ASAP jdksjdkksod

Answers

Got this online.LCM(725, 349920) = 50738400
Greatest Common Divisor (GCD) Method Steps:

GCD(725, 349920) = 5

LCM =
725 × 349920
5
= 50738400

Prime Factorization Method Steps:

Prime factorization of the numbers:

725 = 5 × 5 × 29
349920 = 2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 3 × 3 × 3 × 3 × 5

LCM(725, 349920)
= 2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 3 × 3 × 3 × 3 × 5 × 5 × 29
= 50738400

2h = W-3p
(solve for p)

Answers

Answer:

p = (2h-W)/-3

Step-by-step explanation:

2h - W = -3p

divide both sides by -3

(2h-W)/-3 = p

The value of p is w/3 - 2h/3.

What is equation?

Equations are mathematical statements containing two algebraic expressions on both sides of an 'equal to (=)' sign. It shows the relationship of equality between the expression written on the left side with the expression written on the right side. In every equation in math, we have, L.H.S = R.H.S

Given:

2h = W-3p

For p move w

2h - w = -3p

Now,  divide both side by 3

2h/3 - w/3 = -3p/3

2h/3 - w/3 = -p

p= w/3 - 2h/3

Hence, the value of p is w/3 - 2h/3.

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How to solve 2y-6x=2
Please provide steps only. lol

Answers

Answer:

y-x = -6

Step-by-step explanation:

Ok so you have 2y-6x=2

step 1: when you add 6 to 6x it cancels out the 6 then subtract 2 by six and get 2y-x=-4.

step 2: when you add 2 to 2y it cancels out the 2 then subtract -4 by two and get your answer.

i hope this helped

There are three significant digits in the number 0.00309
True
False

Answers

Answer:

true

Step-by-step explanation:

It's True (I think so) :)

What is CPCT in maths?​

Answers

Answer:

Step-by-step explanation:

CPCT is corresponding parts of Congruent Triangles. If two triangles are congruent, Their corresponding sides are equal. Their corresponding angles are equal.

your welcome!!

x2y4(x2 - 16) - 9y4(x4 - 16) how do i simply this?

Answers

Answer:

The simplified expression is given as

[tex]8x^2y^4(17x^2-2)[/tex]

Step-by-step explanation:

step one:

Given the expression

[tex]x^2y^4(x^2 - 16) - 9y^4(x^4 - 16)[/tex]

step two:

First, let us open the bracket we have

[tex]x^2y^4(x^2 - 16) - 9y^4(x^4 - 16)\\\\x^4y^4-16x^2y^4-9x^4y^4+144x^4y^4\\\\[/tex]

step three:

collect like terms we have

[tex]x^4y^4-16x^2y^4-9x^4y^4+144x^4y^4\\\\x^4y^4-9x^4y^4+144x^4y^4-16x^2y^4\\\\-8x^4y^4+144x^4y^4-16x^2y^4\\\\136x^4y^4-16x^2y^4\\\\\\[/tex]

step four:

we can now factor out [tex]8x^2y^4[/tex]we have

[tex]8x^2y^4(17x^2-2)[/tex]

The equation y = 14.3x + 17.1 estimates the amount that businesses will spend, in billions of dollars, on a certain business technology, where x is the number of years
after 2002. For what years will the spending be more than $60 billion?

Answers

2006 and later

First, plug in 60 for y. Then subtract 17.1 from both sides, and you get 42.9 = 14.3x, from which you divide 14.3 from both sides to isolate x. Since x = 3, the businesses will be spending less than or equal to $60 billion up to 3 years after 2002. The fourth year, which is 2006, will be greater than $60 billion

please help me with this.

Answers

Your answer is B it’s x=55

Evaluate the following expression when x=14. X^2+5x+11

Answers

Answer:

277

Step-by-step explanation:

14^2+5(14)+11=

196+70+11=

277

Start by substituting 14 in for x everywhere that x appears in the problem.

So we have (14)² + 5(14) + 11.

Remember that PEMDAS tells you to deal

with your exponents before multiplying.

So you must square the 14 to get 196.

So we have 196 + 5(14) + 11.

Now multiply 5(14) to get 70.

So we have 196 + 70 + 11.

Now we can simply add to get 277.

Find x and y. Give reasons to justify your solution.

Answers

Answer:

x = 36

y = 22

Step-by-step explanation:

Let's solve for x

<EOG is a right angle due to the marking. Since that's the case, m<EOG = 90.

<EOF + <FOG = <EOG

Now let's substitute the values in.

54 + x = 90

x = 36

Let's solve for y

<AOB is 180 because it's a line.

<BOD + <COB = 180 because of supplementary angles

<BOD + 156 = 180

<BOD = 24

Let's create the equation now.

<AOE + <EOF + <FOG + <GOD + <BOD = <AOB

Now let's substitute the values in.

y + 54 + x + 2y + 24 = 180

3y + x + 78 = 180

Now let's substitute 36 for x.

4y + 36 + 78 = 180

3y + 114 = 180

3y = 66

y = 22

Hope this helped! If not, please let me know! <3

if 4x plus 7 equals 18, what is the value of 12x plus 21

Answers

Answer:    54

--------------------

Please help me I am so confused 50 points

Answers

Answer:

y = 1

General Formulas and Concepts:

Horizontal lines always have a slope m of 0.

y = 0x + b

y = b

Step-by-step explanation:

Step 1: Define

Slope m = 0

y-int (0, 1)

Step 2: Write equation

y = 1

4a^2-2b^2+40 a=2. b=7

Answers

Answer:

-92

Step-by-step explanation:

4a^2-2b^2+40 a=2. b=7

Fill in variables

4(2)^2-2(7)^2+40      a=2. b=7

8^2 - 14^2 + 40

64 - 196 +40 = -92

I agree -92 sounds correct
Hope this helps

What are the answers I need help ?

Answers

Answer:

I can't see -_-

Step-by-step explanation:

I can't -_-

Please help me with this problem!​

Answers

the answer is 954 according to my calculations

the solution of the inequality |x + 1| + 2 > 5.

Answers

Answer:

|x + 1| + 2 > 5

use symbolab

You read 9.75 pages in your science book and 24.5 pages of a play for English class. It takes you 1.2 minutes to read each page of science and 0.8 of a minute to read each page of the play. How much time do you spend reading?


CLEAR CHECK

Answers

Answer:

31.3 minutes were spent reading

Step-by-step explanation:

If it takes 1.2 minutes to read each page for science and you read 9.75 pages of science, then you must multiply these two numbers together

9.75 pages × 1.2 mins = 11.7

If it takes 0.8 of a minute to read each page of the play and you read 24.5 pages of a play, then you also multiplying these two numbers

24.5 pages × 0.8 mins = 19.6

If we must find out the time spent reading, we must add these two numbers together

11.7 + 19.6 = 31.3

Yous pent 31.3 minutes reading....

Suppose we wish to bisect angle ABC using a compass and straightedge. Which choice is a correct first step?
O Place the compass point at A
O Place the compass point at B.
O Place the straightedge along ray BC.
O Place the straightedge along points A and B.

Answers

Answer: Place the compass point at A i think

Step-by-step explanation: if a and b go toghter than its not c so i would be ertier since b is closer it is not b so the answer is a i think

B) Place the compass point at B


Help please problem is worded weird

Answers

Answer:100

Step-by-step explanation:

Expand

x = 150 - 0.5x

Add 0.5x to both sides

x + 0.5x = 150

Simplify x + 0.5x to 1.5x

1.5x = 150

Divide both sides by 1.5

x = 150/1.5

Simplify 150/1.5 to 100

x = 100

Answer: the correct awnser is 100

Step-by-step explanation:

The sum of 3 consecutive integers equals -3. What are the 3 integers?

Answers

Answer: 0, -1, -2

The sum of three consecutive integers is -3. So, we must find three consecutive numbers that total to -3.

The numbers can be 0, -1, and -2 because these are consecutive numbers.

So, the answer is 0, -1, and -2. Hope this helps you!

Which is reflex angle
a.180° b.280° c.270°​

Answers

Answer:

b)280° and c) 270°

A reflex angle is an angle which is more than 180° but less than 360°

If my answer helped, kindly mark me as the brainliest!!

Thank You!!

Step-by-step explanation:

180 is reflex angle.

hope it's helpful

Planning for his retirement, mr Lloyd opened a saving

Answers

Answer:

He's definitely on the right track on saving money for his retirement. As the years move along, he can continue to save money in his savings account.

Step-by-step explanation:

Takira is an appointment-setter for a sales organization. She makes $12 an hour plus a $3 fee for each appointment that is scheduled. This week. Takira worked 40 hours and
scheduled 31 appointments. What are ber total earnings with fees this week?
Enter the correct answer in the box

Answers

12 x 40 = hours she worked = 480

3 x 31 = appointment fee = 93
480 + 93 = 573

The total earnings with fees this week will be $571.

What is a linear equation?

A connection between a number of variables results in a linear model when a graph is displayed. The variable will have a degree of one.

Takira is an arrangement setter for a deals association. She makes $12 an hour in addition to a $3 charge for every arrangement that is planned.

Let 'x' be the number of hours and 'y' be the number of appointments. Then the equation is given as,

Total earnings = $12x + $3y

This week. Takira worked 40 hours and scheduled 31 appointments. Then the total earnings are calculated as,

Total earnings = $12(40) + $3(31)

Total earnings = $480 + $91

Total earnings = $571

The total earnings with fees this week will be $571.

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The table shows four account transactions. Find the account balance after the transactions when the account started with a balance of
$125
deposit
$50
deposit
$35
withdrawal -$70
withdrawal -$50

Answers

Answer:

5

Step-by-step explanation:

The account balance after transactions will be $90.

What is Addition?

A process of combining two or more numbers is called addition.

Given that;

The account started with a balance of $125 and

deposit $50,

deposit $35

withdrawal -$70

withdrawal -$50

Now,

Deposit in account means to add the amount and withdrawal means to remove money from account.

Since, The account started with a balance of $125.

After deposit $50,

The account balance = $125 + $50 = $175

Again after deposit $35;

The account balance = $175 + $35 = $210

After withdrawal -$70;

The account balance = $210 - $70 = $140

Again after withdrawal -$50;

The account balance = $140 - $50 = $90

Thus, The account balance after transactions will be $90.

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Point D is on line segment CE.Given DE = 2 + 10, CD = 6, and CE = 3x,
determine the numerical length of DE.

Answers

Answer:

18

Step-by-step explanation:

There are selveral ways of doing this

1. add all the numbers together so 2+10+6=18

or

2. 3x= (2+10) +6

          (12)+6

          18

3x=18

/3.  /3

x=6

then 3(6)

therefore equalling 18 as well

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