Answer using scientific notation

0,00000000023 x 140000000
830000 x 0,00000034
0,00000042 x 0,0000081

Answers

Answer 1

Answer:

1. 3.22 x 10^-2

2. 2.822 x 10^-1

3. 3.402 x 10^-12

Step-by-step explanation:

1. 0.00000000023 x 140000000

= 2.3 x 10^-10 x 1.4 x 10^8

= 3.22 x 10^-2

2. 830000 x 0.00000034

= 8.3 x 10^5 x 3.4 x 10^-7

= 0.2822

= 2.822 x 10^-1

3. 0.00000042 x 0.0000081

= 4.2 x 10^-7 x 8.1 x 10^-6

= 3.402 x 10^-12


Related Questions

..................................

Answers

….there’s nothing here?…

What is the slope of the line represented by the equation y = fx-3?
Х
5
-3
o
4
5
|s
4
5
O 3
Please helpppp!!!!

Answers

Answer:

it 3.5-9

Step-by-step explanation:

Which of the following is a correct equation for the line passing through the
point (-1,4) and having slope m= -3?
Check all that apply.
V=-
O A.
-*-3
B. 3x+y=1
O c. y= - 3x + 1
D. 7–4= – 3(x+1)
SUBMIT

Answers

Answer:

C

Step-by-step explanation:

m = -3

y = mx +b

y = -3x + b

Plugin x = -1 and y = 4

4 = -3*(-1) +b

4 = 3 + b

4-3 = b

b = 1

y = -3x + 1

Answer:

B, C, D

Step-by-step explanation:

The equation of a line in point slope form is

y - b = m(x - a)

where m is the slope and (a, b) a point on the line

Here m = - 3 and (a, b ) = (- 1, 4 ) , then

y - 4 = - 3(x - (- 1) ) , that is

y - 4 = - 3(x + 1) → D

Distribute parenthesis

y - 4 = - 3x - 3 ( add 4 to both sides )

y = - 3x + 1 → C

Add 3x to both sides

3x + y = 1 → B

Determine whether the following ratios are equivalent. (9:12 and 24:18)

Answers

0111100109090909099999999999999999

Sorry for the spam, I really need help.

Answers

Answer:

x=8

y=18

Step-by-step explanation:

[tex](3x+13)+(7x-3)=90[/tex]

[tex]10x+10=90[/tex]

[tex]10x=90-10[/tex]

[tex]x=\frac{80}{10} =8[/tex]

[tex]3x+13=3(8)+13=24+13=37[/tex]

[tex]5y=180-37-53=90[/tex]

[tex]y=\frac{90}{5} =18[/tex]

I hope this help you

Somebody plz help ????? I need the answer to this

Answers

Answer:

I was thinking it should be -1,2 but that'd not an awnser so B

use the table to work out the values of a, b, c and d
PLEASE HELP!!!

Answers

Answer:

a = 10, b = 5, c = 14, d = 25

Step-by-step explanation:

Plug in -2 for x ....

y = 2(-2)^2 + -2 + 4

y = 2(4) + 2

y = 10

Plug in -1 for x ....

y = 2(-1)^2 + -1 + 4

y = 2(1) + 3

y = 5

Plug in 2 for x ....

y = 2(2)^2 + 2 + 4

y = 2(4) + 6

y = 8 + 6

y = 14

Plug in 3 for x ....

y = 2(3)^2 + 3 + 4

y = 2(9) + 7

y = 18 + 7

y = 25

I don’t get it and I’m struggling to answer it.

Answers

If the path is 2 feet wide, you actually have 14 feet of length and 6 of width.

Multiply that together and he has 84 ft left

The product of two consecutive positive odd numbers is 195.By constructing a quadratic equation and solving it, find the two numbers
Please help

Answers

Step-by-step explanation:

x = one odd number

the second odd number is (x+2), as both are consecutive.

so,

x × (x + 2) = 195

x² + 2x = 195

x² + 2x - 195 = 0

the formula to solve this is

x = (-b ± sqrt(b² - 4ac))/(2a)

in our case

a = 1

b = 2

c = -195

x = (-2 ± sqrt(4 - 4×1×-195))/(2×1) =

= (-2 ± sqrt(4 + 4×195))/2 = (-2 ± sqrt(784))/2 =

= (-2 ± 28)/2 = -1 ± 14

x1 = -1 + 14 = 13

x2 = -1 - 14 = -15 which is invalid as the numbers are positive.

so, the two numbers are 13 and 15.

PLEASE HELP ME OUT! Thank you!

Complete the two-column proof using the answers in the bank.
Given: Point B is the midpoint of DC and EA Prove: ∆BDE ≅∆BCA

Answer Bank:
Definition of a midpoint
EB ≅ AB
Given
Point B is the midpoint of DC and EA
Side-Angle-Side (SAS)
Vertical Angle Theorem

FILL THE BLANKS

Statement Reason
1.__________ 1. Given
2. DB ≅ CB 2._________
3.________ 3. Definition of a midpoint
4. ∠EBD ≅ ∠ABC 4.__________
5. ∆BDE ≅∆BCA 5._________

Answers

Answer:

Step-by-step explanation:

1. B is midpoint of DC and EA              1. Given

2. DB ≅ CB                                            2. Definition of midpoint

3. EB ≅ BA                                              3. Definition of midpoint

4. ∠EBD ≅ ∠ABC                                  4. Vertically opposite angles

5. ΔBDE ≅ ΔBCA                                  5. S A S congruent

the ratio of adult to children in the spot club is 5:3 There are 120 people in the club. how many children are there​

Answers

Answer:

5:3=8

3/8 x 120

3/1 x 15

3 x 15=45

Step-by-step explanation:

hope this helps

sorry

You start by making an equation:

3x+5x=120

Then combine like terms

8x=120

Divide 8 by both sides

x=15

Now that we have that we can figure out how many children and adults there are

Children: 3x15=45 children
Adults: 5x15=75 adults

Also, you can type this in your calculator for a faster method

Children : 120 x(3/8) =45
because eight is the sum of the ratio 5+3

And Adults : 120 x(5/8)=75

So the answer to your question is 45 children.

Hope this helps!!!

Use mental math to find the missing number. Enter your answer in the box.42,000 ÷ = 600

Answers

Answer:

7 is the required answer.

Step-by-step explanation:

4200 ÷ 7 = 600

PLEASE HELP!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

I think it's c

Step-by-step explanation:

because that looks like a good answer.

PLEASE HELP ME!!
Find the domain, in interval notation too.

Answers

I sadly do not have an answer to this problem but,  have a great explanation for a similar problem. (I really am sorry that I don't have the answer, in a bit of a time constraint)

Step-by-step explanation:

Example (graph found below):

The domain of a function f(x) is the set of values of x for which f(x) has a defined value.



In the graph we can see that we have two asymptotes: one vertical and one slant asymptote.



The slant asymptote does not affect the domain,  but the vertical asymptote at x = 0 implies that f(x) does not have a defined value at x = 0.

Then, x = 0 is not part of the domain of f(x). All the real numbers different from 0 are part of the domain.



Then, we can write the domain as x ≠ 0 or, in interval notation, as (-∞,0) ∪ (0,∞).



Answer: the domain is all the real numbers different from 0.



NOTE:

If we want to know the range of the function, we have to look at the values that f(x) can take for the domain for which it is defined.

In this case, we can see that there is no limitation for the values f(x) can take: f(x) can take all real numbers, so the range is all real numbers.

Answer:

[tex]D = (-\infty, -1) \ \cup \ (-1, 2) \ \cup \ (2, \infty)[/tex]

Step-by-step explanation:

This function is rational function that's meaning that is of the form:

[tex]\frac{1}{x}[/tex]

So you have to take care when [tex]x[/tex] is equal to 0 because the function is undefine in that number (is represented with an asymptote and means that go to positive or negative infinity).

In the given graph there are 2 asymptotes in -1 and 2 so you have to avoid this two points in the notations by intervals. You can achieve this using the parenthesis indicating that you don't take the value in account.

Select the two values of x that are roots of this equation.
x² + 2x - 4 = 0
O A. x= -1 - 15
B. x= -1+5
C. X=-1-215
D. x = -1+2-15

Answers

Answer:B and c

Step-by-step explanation:


How many times larger is 4 × 1011 than 2 × 106?

Answers

4*1011 is 19.07547 times larger than 2*106

Step by step Explanation:
1. 4*1011=4044
2. 2*106=212
3. 4044/212= 19.07547
4. you now have your answer.


Key:

/ means division
* means multiplication

I hope that helps

Brainliest?

6 * 2 /( -1)4* 5-(8+3)

Answers

Answer:

−251

Step-by-step explanation:

Answer:

6 x 2 / (-1) x 5 - (8 + 3)

6 x 2 / (-1) x 5 - 11

12 / -1 x 5 - 11

-12 x 5 -11

-60 - 11

-71

Step-by-step explanation:

hope this helped if not then i am sorry good luck

Which of the following statements justifies why the triangle shown below is not a right triangle?
Z
O A. 42 +122132
OB. YZ + XZ > XY
OC. XZ O D. YZ SUBMIT
please help

Answers

None of the options are correct. And the given triangle is a right-angle triangle.

Given that,
Which of the following statements justifies why the triangle shown below is not a right triangle is to be determined.

What is the triangle?

The triangle is a geometric shape that includes 3 sides and the sum of the interior angle should not be greater than 180°

Here,
A triangle that follows the Pythagoras theorem, are right an angles triangle,
For the given triangle,?
13² = 4² + 12²
169 = 25 + 144
169 = 169
So, the given triangle holds the property of Pythagoras' theorem,

Thus, None of the options are correct. And the given triangle is a right-angle triangle.

Learn more about triangles here:
https://brainly.com/question/2773823

#SPJ2

Identify the errors in the image.
Mosquito Life Cycle
2021 Edmentum. All rights reserved. growth and development of organisms master test!!


A. the egg stage is missing


B. the mosquito transforms into a butterfly

C. the pupal stage should come after the larval stage

D. there is no metamorphosis

Answers

Answer:

B. the mosquito transforms into a butterfly

Step-by-step explanation:

Since mosquitos and butterflies are entirely different insects, one cannot transform into the other. Mosquitos never take on a butterfly's coloring, habits, or even purpose during their lifetime.

I hope this was incredibly helpful! Tell me if you need any further assistance...

( :

Evaluate.

−[−1 2/5÷0.7(1.8)]−2/3

What is the value of the expression?

Enter your answer as a simplified mixed number in the box.

Answers

Answer: the answer is 2 14/15

Step-by-step explanation:

The solution of the expressions will be 0.44.

What is Number system?

A system of writing to express the number is called number system.

Given that;

The expressions are,

⇒ −[−1 2/5 ÷ 0.7 (1.8) ] − 2/3

Now,

Solve the expression as;

⇒ −[−1 2/5 ÷ 0.7 (1.8) ] − 2/3

Using the BODMAS rule to solve the expressions as;

⇒ −[−1 2/5 ÷ 0.7 (1.8) ] − 2/3

⇒ −[−1 2/5 ÷ 1.26 ] − 2/3

⇒ - [ - 7 / 5 ÷ 1.26 ] − 2/3

⇒ - [ - 7 / 5 x 1 / 1.26 ] - 2 / 3

⇒ - [ - 7 / 6.3 ] - 2/3

⇒ 1.1 - 2/3

⇒ 1.1 - 0.66

⇒ 0.44

Therefore,

The solution of the expressions will be 0.44.

Learn more about the mathematical expression visit:

https://brainly.com/question/2164351

#SPJ5

Please help me. What is 5 3/4 - 2 11/12? I'm almost done for the year

Answers

Answer:

2.83

Step-by-step explanation:

If sin(0) > 0, then in which quadrants could 0 lie? Select all correct answers.

Select all that apply:

Quadrant I

Quadrant II

Quadrant III

Quadrant IV

Answers

Answer:

I and IV

Step-by-step explanation:

based on the unity circle 0 and 360 is on the same plane..hope it's answerd

If one-third of a number is 24 less than the thrice of the number, find the number.​

Answers

Answer:

9

Step-by-step explanation:

Let the number be 'x'

One third of a number : (1/3) *x

Thrice the number = 3x

[tex]3x -24=\dfrac{1}{3}x\\\\3x - \dfrac{1}{3}x = 24\\\\\\[/tex]

Multiply the entire equation by 3

9x - x =  72

8x = 72

Divide both sides by 8

x = 72/8

x = 9

A line that includes the points (z,2) and (–8,–5) has an undefined slope. What is the value of z?

Answers

Answer: z = -8

Step-by-step explanation:

A line with an "undefined slope" is one that is vertical to the x axis.  It has a slope that is undefined because there is no change in x for all points on the line.  The slope is the Rise over the Run, and in this case there is no :Run."  That means dividing by zero, so it is undefined.

Since x foes not change, the unknown point (z,2) would be (-8,2).

z = -8

Round 0.008547 to the nearest thousandth :]

Answers

Answer:

0.855

Step-by-step explanation:

Brainliest Please!

Answer:

Step-by-step explanation:

The first zero in the tenth region

The second zero is in the hundreds region

The 8 is in the 1/1000 so look to the next digit.

It is a 5

So round 1 digit in the thousands higher.

Answer: 0.009

Will give brainliet no file plz

Answers

Answer:

it would be C

Step-by-step explanation:

Use the following function rule to find f(0).

f(x) = 5^x− 4

f(0) =

Answers

Helloo
So you just substitute 0 into the equation
f(0)= 5^0-4
=1-4
=-3

Hope I helped!

Answer:

-3

Step-by-step explanation:

Using the remainder and the factor theorem

5⁰-4

1-4

-3

please help me asap

Answers

Answer:

No, it isn't linear because the graph is not a straight line.

Step-by-step explanation:

(see picture of graph)

Linear means a straight line, and these points do not form a line, so it is not linear. You can also calculate this by finding the slope between each point and the previous.

I need help :) pls help me:)

Answers

Answer:

A plot is a graphical technique for representing a data set, usually as a graph showing the relationship between two or more variables. The plot can be drawn by hand or by a computer. In the past, sometimes mechanical or electronic plotters were used.

Step-by-step explanation:

not the answer for that but ig this can help u mwa

Answer:

12.15-13.00 is 15 mins

13.00-13.30 is 30 mins

Answer-45 mins

A recipe for trail mix says: “Mix 7 ounces of almonds with 5 ounces of raisins.” How many batches would there be if you have 250 ounces of raisins?

Answers

Answer:

20.8333333333

Step-by-step explanation:

7 + 5 = 12. 250 divided by 12 equals 20.8333333333 or 20.833... You will have more than 20 and a half batches but you can just say about 21, however needed.

Other Questions
Which of these biome types does not exist in Latin America? A long-sleeve shirt has 8 front buttons and 2 cuff buttons; a short-sleeve shirt has 6 front buttons and no cuff buttons. The factory which makes Slimboy Shirts uses 10 times as many front buttons as cuff buttons. What is the ratio of long-sleeve shirts to short-sleeve shirts produced by the factory?Leave your ratio in its simplest form. 6-5/8=(5/8 is just like that but slanted) Climate warming has been demonstrated by direct measurement of___ and by measurements of various effects of warming on Earth's systems. A: temperaturesB: particles C: pollution D: jet stream What was the main reason the patriots wanted independence form the Great Britain? There are 150 fish in total. The ratio of goldfish to betta fish is 2:3. How many goldfish are there? (Please help me Im nearly crying cause I cant answer this question. ) A Subchapter S corporation:is similar to a partnership in that it carries unlimited liability.is a separate legal entity which is treated like a normal corporation. has all the organizational benefits of a corporation and its income is only taxed once.all of the above. URGENT We use HTML5 in lightweight web pages which load faster and put less strain on web servers.A. TrueB. False How were Adolf Hitler, Benito Mussolini, and Joseph Stalin similar in their rise to power? what do eukaryotic cells have that prokaryotes lack as liquid or gases heat up, they ___________. Then as they___________ they fall, thus As liquid or gases heat up, they driving the motion the of convection.A: Fall, HeatB: Bubble, Overflow C: Create Heat, Burn D: Rise, CoolHelp please its okay if not 12. A shoebox has a volume of 456 cm3 and a mass of 114 g. What is itsdensity? Ellos __________ (llegar) a la escuela tarde ayer. El fin de semana pasado mi hermano y yo __________ (comprar) un regalo para mi pap porque el domingo es el Da del Padre.Yo ___ una buena cena.(preparar)Yo _________ (comer) arroz y frijoles hace dos das.__________ (Ver) Uds. aquel letreo? Hay una gran liquidacin hoy en esa tienda.Finalmente, nosotros ____________ (escoger) una cartera de cuero. In ________, we learn to associate two stimuli; in ________, we learn to associate a response with its consequence. Find the range of the function.f(x) = -7x2 3- what are the factors of 108 and 999[tex]70 \time 80 + [/tex] what is 1 + 1(first gets brainliest) how do mechanical waves compare with electromagnetic waves? What is the difference between macrofossils and microfossils? Explain. Look at the picture. The line marked in red is the _____________ .A) equatorB) Earth's axisC) prime meridian