0.021 +0.21 + 0.00021 +0.0021 = 0
O A. 0.0084
B. 0.084
OC. 0.2351
D. 0.23142
E. 0.23331

Answers

Answer 1

Answer:

E. 0.23331

Step-by-step explanation:

0.021 + 0.21 + 0.00021 + 0.0021

⇒ As 21 is a common factor, take the remaining as powers of 10.

21 (10⁻³ + 10⁻² + 10⁻⁵ + 10⁻⁴)21 (0.001 + 0.01 + 0.00001 + 0.0001)21 (0.01111)21 x 0.011110.23331

Related Questions

Please help with this and how to solve it.

Answers

Answer:

angle HMS = 62 degrees

x = 13 degrees

AT = 28

Step-by-step explanation:

angle SHM and angle HMS are both inside the triangle SMH.

We want to find the angle of HMS. We know that the sum of the angles in the triangle adds up to 180 degrees. There are two angles that we already know.

Angle SHM = 28 (given)

Angle HSM = 90 (because it is a right angle which is always 90 degrees, right angles are formed at two perpendicular lines)

Angle HMS = x (we let angle HMS be a variable as we don't know the value for it)

x + 90 + 28 = 180

x = 62 ddegrees

HMS is 62 degrees

TSA is a right angle in triangle AST because it is formed by two perpendicular lines. Right angles always equal 90 degrees.

10x - 40 = 90

10x = 130

x = 13 degrees

AT and HT are both congruent sides. We know this because the figure we are given is a kite. In a kite, we have two pairs of sides that are congruent to each other.  HT is congruent to AT while HM is congruent to AM.

So,

8x - 4 = 2x + 20

Subtraact 2 x from both sides

6x - 4 = 20

Add 4 to both sides

6x = 24

Divide 6 on both sides.

x = 4

Plug x back to AT.

AT = 2(4) + 20 = 28

first to answer correctly will be marked brainliest 40 points as well

Answers

Answer:

see explanation↓

Step-by-step explanation:

(a)

[tex](3x+2)-(x+5)=3x+2-x-5[/tex]

[tex](3x+2)-(x+5)=2x-3[/tex]

ANSWER: Linear binomial

(b)

[tex](3x+8)+(4x^{2}-x)=3x+8+4x^{2}-x[/tex]

[tex](3x+8)+(4x^{2}-x)=4x^{2} +2x+8[/tex]

ANSWER: Quadratic trinomial

(c)

[tex](x^{2}+7x)-(x^{2}+5)=x^{2}+7x-x^{2}-5[/tex]

[tex](x^2+7x)-(x^2+5)=7x-5[/tex]

ANSWER: Linear binomial

(d)

[tex](2x+8)+(3x^2-2)=2x+8+3x^2-2[/tex]

[tex](2x+8)+(3x^2-2)=3x^2+2x+6[/tex]

ANSWER: Quadratic trinomial

(e)

[tex](x^2+5x-2)+(8-5x)=x^2+5x-2+8-5x[/tex]

[tex](x^2+5x-2)+(8-5x)=x^2+6[/tex]

ANSWER: Quadratic binomial



What is the correct answer?​

Answers

Answer:

D. 81/m^7.

Step-by-step explanation:

(3m ^ -4)^3(3m^5)

= (3/ m^4) ^3 (3m^5)

= 3^3/ m^12)(3m^5)

= 81/m^7.

the correct answer is D !

Which sentence is correct?
OA) -3 > 2
OB) -3 <-6
OC) -3>-8
OD) -3>-2



HELP IM BEING TIMED I WILL GIVE BRAINLIEST

Answers

Answer:

OC is correct

Step-by-step explanation:

The greater answer is always gonna be the closest one to zero on the number line.

Hopefully this helps!

20 Points, Part A What percentage of the time margins are at least 0.6 second? Part B What is the most common margin of victory? (Screenshot)

Answers

Answer:

20%

0.5

Step-by-step explanation:

There are 20 margins, so you have to count how many are 6.0 or higher. There are 4 margins that fit this so you divide the 4 margins by 20, then multiply the quotient by 100. That's how you get 20%.

The most common time was 0.5.

Guys guys GUYS guys guYs HELPhelp helppp

Answers

Answer:

A is 3 x 3 = 9 so thats one multiple and the ones that have the same put in the middle

Step-by-step explanation:

Which object will have more inertia? Object A that has a mass of 250 grams, Object B, that has a mass of 25,000 grams, or Object C that has a mass of 1,250,000 grams.
1.object a
2.b
3.c
4.all have the same

Answers

Answer:

3.  Object C.

Step-by-step explanation:

The inertia of an object is the measure of the force required to set it in motion.  For two objects to have the same motion, the one with the greater mass will require a proportionately greater force to achieve the same motion.

Object C, with a mass of 1,250,000 grams (1,250 kg) will have the greatest inertia.



A student has taken 5 quizzes. She would like to have at least 90% average. What must her fifth score be to achieve her goal?
90, 85, 86, 93, x

Answers

Answer:

she needs 96 in the fifth quiz

Select the correct answer.
A paper cup in the shape of a cone is used to get water from a water cooler. It has a height of 3 inches and a diameter of 22 inches
What is the lateral surface area of the paper cup to the nearest square Inch?
OA 15 square Inches
OB.
19 square Inches
ОС.
14 square Inches
OD. 18 square Inches

Answers

We will see that the lateral surface area of the cone is 14 square inches.

How to find the lateral surface area?

We know that for a cone of height H and radius R, the lateral surface of the cone is:

S = 3.14*R*H

In this case, we know that eh height is 3 + 5/8 inches, and the diameter is 2 + 1/2 inches. Remember that the diameter is twice the radius, then:

R = (2 + 1/2) in = (1 + 1/4) in

Replacing that on the surface equation, we will get:

S = 3.14*( (1 + 1/4) in)*(3 + 5/8)in = 14 in^2

If you want to learn more about areas, you can read:

https://brainly.com/question/24487155

Answer:

it's 15

Step-by-step explanation:

guy above was close

Solve 5(x – 4) = 2(x + 5) for x.

Question 9 options:

x = 5


x = –10


x = 10


x = –5

Answers

Answer:

Step-by-step explanation:

the answer for 5(x – 4) = 2(x + 5)


is x=10

your welcome!

Answer:

x = 10

Step-by-step explanation:

5(x – 4) = 2(x + 5)               DISTRIBUTE

5x - 20 = 2x + 10                COMBINE LIKE TERMS

3x = 30                               ISOLATE X

x = 10                                  FINAL ANSWER

I hope this helps!

Which of the following is a linear function?
A. y=1 over x
B. y=x²
C. y=x
D. y=√x

Answers

Answer:

C

Step-by-step explanation:

What is the value of the 9 3/4- 2 1/5 +1/2

Answers

Answer:

93 will the answer

Step-by-step explanation:

yes htey are good

Element x decays radioactively with a half life of 12 minutes. if there are 580 grams
of element x, how long, to the nearest tenth of a minute, would it take the element to
decay to 68 grams?

Answers

Answer:

37.1

Step-by-step explanation:

37.1

Simplify the expression: 4a+8−2a−4+7b
Expression:__

Answers

Answer:

2a+7b+4

Step-by-step explanation:

collect like terms:

4a-2a=2a

8-4=4

then put the equation back together

HELPP this is due tomorrow

254 people were surveyed regarding their favorite gemstone 54%chose diamonds 6%chose saphires 30% chose emeralds 10% rubies. How many people did not choose emeralds or rubies?

Answers

Answer:

152.4

Step-by-step explanation:

30%+10%=40%

100%-40%=60%

254*0.60=152.4

Use the graph to complete the follow statement. _____ cm of rain fell in total on Tuesday.

Answers

I don’t know the answer is 19 I guess

In a survey, 125 people were asked to chose one card out of five cards labeled 1 to 5. The results are shown in the table. Compare the theoretical probability and experimental probability of choosing a card with the number 3
.

Answers

Answer:

There is no table, so I'll just calculate the theoretical.

125/5=25.

So, 20% to get a card with the number 3

Can someone solve this so that i can confirm that I’m doing it right?

Answers

Answer:

Below in bold.

Step-by-step explanation:

x /18 = 12/10

10x = 18*12

x = 216/ 10

= 21.6.

10/w = 18/24

10/w =  3/4

3w = 40

w = 40/3 =  13 33   to the neaest hundredth.

Which number is rational?
Ov2
M
O 10
O 16

Answers

O √2

O π

O √10

✔ O √16

rational numbers are decimals, whole numbers, fractions.

√16 = 4  || which is whole number

π and √a for non whole numbers fall under irrational numbers
Square root 16 because it simplifies to four.
Root 16
= root 4x root 4
= 2x2
= 4 which is a rational number because it’s whole

What is the value of the expression
below?
8 - 3116
A. -40
-
B. -4
C.
2
D.
20

Answers

Answer:

i do not understand how you wrote this please explain better

Step-by-step explanation:

Thrice a number subtracted from 10?​

Answers

Answer:

10-3x

Step-by-step explanation:

let the number=x

thrice the number becomes 3x

Pythagorean Theorem
(Rounding)
Find the length of the third side. If necessary, round to the nearest tenth.

SOMEONE PLEASE HELP ME ILL GIVE YOU BRAINLIST ANSWER AND POINTS!!!!

IMAGE DOWN BELOW!!

Answers

the answer would be 6.2
Answer:   6.2

Work Shown:

[tex]a^2 + b^2 = c^2\\\\a^2 + 5^2 = 8^2\\\\a^2 + 25 = 64\\\\a^2 = 64-25\\\\a^2 = 39\\\\a = \sqrt{39}\\\\a \approx 6.244998\\\\a \approx 6.2[/tex]

Helppp mee plsssssss

Answers

Answer:

Option 3 (left object volume = right object volume)

For explanation:

The volume of a slanted cylinder is nothing but the same volume as the volume of the right circular cylinder of the same height

I hope my answer helps you.

how many students are involved in the school music program but not school sports

Answers

Answer:

45% of the school because some will sign up

Which situation could be represented by the expression 1.40x?

Answers

B is the correct answer because length times width is the formula for a rectangle, and if the side lengths are 1.40 and x, then that satisfies the requirements

Answer:

B. the area of a rectangle with side lengths 1.40 and x

Step-by-step explanation:

To find the area of a rectangle, multiply the length by the width.

If 1.40 is the length, x is the width.

1.40×x=1.40x

So B is the correct answer.

PLEASEEEEE HELPPPPPPP ASAPPPPPPPPPP

Answers

Answer:

Its is 405 gallons

Step-by-step explanation:

If you need an explanation lmk!!!

Answer:

405 gallons

Step-by-step explanation:

The formula to find the amount of water is g=9m-0.17, so 45 is gonna go into the m spot

g=9(45)-0.17

g=405-0.17  <-After you multiply 9 and 45

g=404.83

Now you must round to nearest whole which is 405

I hope this helps

find the value of x

Answers

Answer:

82•5°

Step-by-step explanation:

[tex]28 + 68.5 + x = 180[/tex]

[tex]x = 180 - 97.5[/tex]

[tex]x = 82.5[/tex]

Here,

let the forth degree of the quadrilateral be y

Then,

90° +90° +68.5° + y =360° (all the interior angle of a quadrilateral is 360°)

or, 248.5+ y=360°

or, y = 360° - 248.5°

or, y= 111.5°

Again, the second angle of the triangle be a

Then,

a=111.5(vertically opposite angle)

Lastly,

29° + 111.5° + x = 180°(all the interior angle of a triangle is 180°)

or, 140.5° + x = 180°

or, x =180° - 140.5°

or, x=39.5°

• Write an expression that is equivalent to 3(7 + x).
3(7+ x) =


Answers

Step-by-step explanation:

3(7 + x) = 3×7 + 3x = 21 + 3x

remember, when you multiply two expressions, you need to multiply every term of the first expression with every term of the second expression, and then add all partial results (by considering the individual signs, of course).

Ashley arranged the following list of numbers below: 5,2,7,8,2,5,3. Find the mean and median.

Answers

Mean is the average of all numbers

(5+2+7+8+2+5+3)/7

Mean is 4.57

Median is the middle score so we have to arrange all the numbers from lowest to highest

2, 2, 3, 5, 5, 7, 8

Median is 5

show how to use the unit circle to find tan60

Answers

[tex]\tan 60^{\circ}~\text{equals y coordinate divided by x coordinate, where }(x,y) = \left(\dfrac 12, \dfrac{\sqrt 3}2 \right)[/tex]

[tex]\tan 60^{\circ}\\\\= \dfrac yx \\\\\\=\dfrac{\sin 60^\circ}{\cos 60^\circ}\\\\\\=\dfrac{\tfrac{\sqrt 3}2}{\tfrac 12}\\\\\\=\dfrac{\sqrt 3}2 \times 2\\\\\\=\sqrt 3[/tex]

tanA=y/x

This rule is enough

Now

y=sinAx=cosA

Here A=60°

tan60=sin60/cos60tan60=√3/2÷1/2tan60=√3
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