Mathematics High School

PLEASE HELP ME IT WILL MEAN ALOT TO ME ILL MARK YOU AS A BRILLIANT

PLEASE HELP ME IT WILL MEAN ALOT TO ME ILL MARK YOU AS A BRILLIANT

Answers

Answer 1

Answer:

(a) 0.00000221    (b) 4.2 x [tex]10^{5}[/tex]

Step-by-step explanation:

(a)  [tex]10^{-6}[/tex] means you need to move the decimal left (because of the negative) 6 spaces. So you have 2.21 move the decimal 6 spaces left and you end up with 0.00000221

(b) If you have 420,000 and you count 5 spaces from the last number, that leaves the decimal inbetween the 4 and 2 so your answer will be 4.2 x [tex]10^{5}[/tex]

Related Questions

1. The value x = 4 is a solution to all of the following equations except which?
(1) 2x + 7 =15
(3) x+5 = 3x-3
(2) 3(x+1)= x +11
(4) x+12= 5x-2

Answers

Answer:

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

4

Answer:

Step-by-step explanation:

2 and 4

The equation of a line is y = -3x - 2. What are the slope and the y-intercept of the line? slope = -3 and y-intercept = 2 slope = 3 and y-intercept = -2 slope = 3 and y-intercept = 2 slope = -3 and y-intercept = -2​

Answers

Answer:

slope -3 and y-intercept -2

Step-by-step explanation:

The slope:

the general linear function is y=mx+n where m is the slope

so slope = -3

y intercept is when x=0

y=-3*0-2

y=-2  

PLEASE HELP 15 POINTS

Answers

Answer:

x > 1/2

Step-by-step explanation:

1/2 is a fraction just so you know

Hope this help's and I wont be showing work due to it being a test that I have seen sorry.

13-2(4r-5) =-(7+8r) please show work

Answers

Answer:

r = no solutions

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDASEquality Properties

Step-by-step explanation:

Step 1: Define equation

13 - 2(4r - 5) = -(7 + 8r)

Step 2: Solve for r

Distribute:                              13 - 8r + 10 = -7 - 8rCombine like terms:              -8r + 13 = -7 - 8rAdd 8r on both sides:           13 ≠ -7

Here, we see that 13 does not equal -7. ∴ r has no solutions.

y=5x-4y = 5 x − 4

y=-x+2

Answers

Answer:

Y= x+2 " substituting value of y

Step-by-step explanation:

Y=5x-4y = 5x - 4

or, 5x - 4(x+2) = 5x - 4

or, 5x - 4x+ 8 = 5x-4

or, x +8 = 5x - 4

or, 0= 5x - x - 4-8

or, 0= 4x - 12

please hurry I need this fast

Answers

the answer to the problem is 2

Answer:

2). 5

Step-by-step explanation:

SV ≅ UT ⇒ 4x - 3 = x + 3 ⇒ x = 2

SV = 2 + 3 = 5

Help me with this :////

Answers

Answer:

x=4.66

tan(25)=x/10

10tan(25)=x

4.66=x

1.How many solutions does the system have?
x + 4y = 3
-5x - 20y=-15
a. one solution
b. two solutions
c. infinitely many solutions
d. no solution

Answers

Answer:

c. infinitely many solutions

Step-by-step explanation:

Answer:

c. infinitely many solutions

Step-by-step explanation:

An angle measures 8° less than the measure of its complementary angle. What is the measure of each angle?

Answers

Answer:

82°

Step-by-step explanation:

Which value is 10 times the value of 18,000

Answers

Answer:

180000

Step-by-step explanation:

18000 i think tell me of im wrong

I need help with this please

Answers

Answer:

The answer is C, A'. (A one)

Step-by-step explanation:

Answer:

the answer for this is c,a

Find the unit rate.
$6.80 for 9 muffins

Answers

Answer: approx. 75 cents / muffin

Step-by-step explanation: divide 6.8 by 9

Answer:

$0.75

Step-by-step explanation:

6.8 divide by 9=0.755555556 and so its 0.75 cents per muffin

Use the drop-down menus to complete the statements below based on the number line diagram.







Help Please ill mark brainliest!!!!!!!!!!!!!!!!

Answers

Answer:

i cant see the picture its just a black screen i would love to help

Answer:

1st is > 2nd is< and 3rd id <

Step-by-step explanation:

What two Rules have to be met in order for a graph to be Proportional?

Answers

Answer:

straight line through the origin

Step-by-step explanation:

you could check in several ways,

like for example

A) an equation in the form y=kx where k is the comtant of proportionality

B)a graph with a straiht line that passes through the origin

C)a set or tavlr shows equivalent ratios

D)a verbal discription that discribes a direct porprotional realtionship

Write an equation in slope intercept form (y=mx+b) for the graph below

Answers

Answer:

y=-x+2

Step-by-step explanation:

Y intercept = 2

Slope = -1/1 = 1

y=-1x+2

Simplified

y=-x+2

Question 4(Multiple Choice Worth 6 points)
(03.04 LC)

Write the equation of the graph shown below in factored form.

the graph starts at the bottom left and continues up through the x axis at negative two to a maximum around y equals eight and goes back down through the x axis at one to a minimum around y equals negative four and back up through the x axis at three

f(x) = (x + 2)(x − 1)(x − 3)
f(x) = (x − 2)(x + 1)(x + 3)
f(x) = (x + 2)(x + 1)(x + 3)
f(x) = (x − 2)(x − 1)(x − 3)

Answers

Answer:

y = (x +2)(x -1)(x -3)

Step-by-step explanation:

Answer:

I think C

Step-by-step explanation:

I am not 100% sure tho

The following table shows the number of heartbeats for four animals for example if it's heartbeat 225 in 3 minutes what animals heart beats ate a rate of 65 beats per minute?

Answers

Answer:cow

Step-by-step explanation:

A lunch cost $22 and a sales tax of $1.54 was added to the bill. What is the tax rate for meals in this city?

Answers

The tax rate is 7% hope this helps!

the radius of a circle is 18 in what is the area and circumference ​

Answers

Answer:

324 pi .  and 36 pi

Step-by-step explanation:

Area is pi r squared, so 18x18 is 324, times pi which is 324 pi

Circumference is 2 pi r, which is 2 times 18 which is 36, times pi which is 36 pi

:D

If y is directly proportional to x and y = 24 when x = 6, what is the value of y when x = 5?

Answers

Answer:

y = 24

x =6

x= 5

Y=? = 20

la relacion es 4

Step-by-step explanation:

Find the solutions to x2 = 27.
O A. x = +3.V
O B. x = +313
O C. x = +92
O D. X = +913

Answers

Answer:

b

Step-by-step explanation:

B duhhhhhhhhhhhhhhhhhhhhhhh

Determine whether the following graph represents a function​

Answers

Answer:

It is not a function

Step-by-step explanation:

3) You are selling raffle tickets. You sell tickets to adults and children. You sell a
total of 475 tickets. Adult tickets cost $3 per ticket and children tickets cost $2
per ticket. You earn a total of $1200. How many adult tickets and how many
children tickets were sold?

Answers

Answer:

Step-by-step explanatiox

x+y = 475

3x + 2y = 1200

3(-y + 475) = 1200

-3y + 1425 = 1200

-3y = -225

y= 75 kids

x = 350

Which one is the correct answer? 33 or 44 or 32 or 66. Pls explain and thanks in advance!

Answers

The answer is 44 because I know just trust me
Answer:   Perimeter of triangle ROA = 33

=================================================

Explanation:

Points R, O, and A are midpoints of sides XY, YG, and XG respectively.

Because of this, we know that the points cut those sides into two equal halves.

To elaborate, we know the following three facts:

Point R is the midpoint of XY, so XR = RYPoint O is the midpoint of YG, so YO = OGPoint A is the midpoint of XG, so XA = AG

The diagram shows that YO = 14, so OG must be 14 units long as well.

The diagram also shows XA = 8. Since XA = AG, we know that AG = 8.

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

Use this information to find the perimeter of triangle XYG.

Perimeter of XYG = sum of all the sides

Perimeter of XYG  = (XY) + (YG) + (XG)

Perimeter of XYG  = (22) + (YO+OG) + (XA+AG)

Perimeter of XYG  = 22 + (14+14) + (8+8)

Perimeter of XYG  = 66

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

Then we cut this in half to get the perimeter of triangle ROA.

We do this because each segment of ROA is half that of the corresponding segment of XYG. The midsegments (RA, RO, AO) are cut in half and are parallel to the opposite side.

So,

Perimeter of ROA = (1/2)*(Perimeter of XYG)

Perimeter of ROA = (1/2)*(66)

Perimeter of ROA = 33

One of the numbered areas on this map includes
the Bering Sea. It also includes the land bridge
that people used to migrate to North America.
Which area is it?
0 1
0 2
O 3
O 4

Answers

4 is correct I believe

Answer: The answer is 4 What he said.

I picked the first one, was I correct?

Answers

Answer:

Yes

Step-by-step explanation:

I believe that makes the most sense

Answer:

Yes you are correct

Step-by-step explanation:

need help asap!!!!!!!

Answers

Answer: A

Explanation: hope this helps

-2x+3<9 answer please

Answers

Answer:

x > -3

Step-by-step explanation:

-2x < 9 - 3

-2x < 6

-x < 3

x > -3

Write an expression in simplest form that represents the area (in square feet) of the banner.
3ft (3 + x)ft
Expression in simplest form:

Answers

Step-by-step explanation:

ok I will be back and I will answer it ok u use

what is the constant proportionality in the equation y=6x

Answers

Answer/Step-by-step explanation:

In y = kx, k is the constant proportionality that is multiplying by x. In this equation 6 replaces k and is the constant proportionality.

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