I need help with my mathwork

I Need Help With My Mathwork

Answers

Answer 1

Answer:

1. 4.2 x 10^-7

2. 2.9 x 10^-6

3. 7.1 x 10^-2

4. 2.56 x 10^5

Answer 2

Answer:

least to greatest

4.2 * 10^-7

2.9*10^-6

7.1 * 10^-2

2.56 * 10^5

Step-by-step explanation:

2.56 * 10^5 =256000

4.2 * 10^-7 =0.00000042

7.1 * 10^-2 =0.071

2.9*10^-6 = 0.0000029


Related Questions

Bobby earns $72 for the day and $6 for each delivery he makes. He wants to make $150 in work day. How many deliveries must Bobby make to reach his goal?

Answers

Answer:

He needs to make 13 deliveries

Can someone help me with this one?

Answers

the answer is x=24 :))

What equivalent fractions for 2 3/5 and 1 1/3 using a common denominator

Answers

Answer:

The common denominator is 15.

2 3/5 = 13/5 = 39/15

1 1/3 = 4/3 = 20/15

Answer:

39/15 and 20/15

Step-by-step explanation:

Given function:

2 3/5 and 1 1/3to find the equivalent fraction for both fraction using common denominator..

Rewrite 2 3/5 and 1 1/3 by a number that is equivalent to 5 and 3:

[tex]5,10,15[/tex]  [tex]3,6,9,12,15[/tex]

Multiply each numerator by how much times it turned into 15:

[tex]3[/tex]·[tex]3=9[/tex] [tex]1[/tex]·[tex]5=5[/tex]

Simplfly the fraction terms:

[tex]2\frac{9}{15}=\frac{39}{15}[/tex] [tex]1\frac{5}{15}=\frac{20}{15}[/tex]

Therefore, 39/15 and 20/15 is equivalent to 2 3/5 and 1 1/3.

Question is in the photo.

Answers

80 square meters? i think it’s asking for the the area of the area in the middle

A right prism has height 7½ and triangular bases with sides of length 5, 12, and 13 What is the: Total Surface Area of the Prism

Answers

Given:

A right prism has height 7½ and triangular bases with sides of length 5, 12, and 13.

To find:

The total surface area of the prism.

Solution:

We have,

Height of prism = 7½ = 7.5

Sides of triangular base are 5, 12, 13. These sides of Pythagorean triplets because

[tex]5^2+12^2=13^2[/tex]

[tex]25+144=169[/tex]

[tex]169=169[/tex]

So, the base of the prism is a right triangle.

Area of a triangle is

[tex]Area=\dfrac{1}{2}\times base \times height[/tex]

[tex]A_1=\dfrac{1}{2}\times 5\times 12[/tex]

[tex]A_1=30[/tex]

The area of the base is equal to the area of the top, i.e., [tex]A_2=30[/tex] sq units.

Perimeter of the base is

[tex]P=5+12+13[/tex]

[tex]P=30[/tex]

The curved surface area of the prism is

[tex]CSA=\text{Perimeter of the base}\times \text{Height of the prism}[/tex]

[tex]CSA=30\times 7.5[/tex]

[tex]CSA=225[/tex]

Now, the total area of the prism is

[tex]A=A_1+A_2+CSA[/tex]

[tex]A=30+30+225[/tex]

[tex]A=285[/tex]

Therefore, the total surface area of the triangular prism is 285 square units.

Suzy makes 20 dollars an hour at her job. Bill only makes 10 dollars an hour but he has a starting bonus of 20. When will Suzy and Bill make the same amount of money for the same number of hours worked? How much will they both earn at the same time?

Answers

Answer:

2 hours

Suzy would earn $40

Bill will earn $40

they will both earn $80

Step-by-step explanation:

The total amount suzy earns is a function of the total hours worked. Let t represent time

total income of suzy = $20t eqn 1

Bill's income = starting bonus + variable pay

= $20 + $10t

We are looking for when they would earn the same amount :

20t = $20 + $10t  eqn 2

collect like terms and solve for t

10t = $20

t = 2 hours

Substitute for t in either eqn 1 or 2

20(2) = $40

Suzy would earn $40

Bill will earn $40

they will both earn $80

sales of 10 000 increase by 65 each year​

Answers

Answer:

Whats the question

Step-by-step explanation:

also if you are looking for the unit rate its 153.846...

or if you are looking for how many in 2 years then 650,000

Hope this helps

Have a nice day :)

the person above is very much correct :)

(-4,-4), (1,3)
Find the distance and slope between each pair of points.

Answers

Answer: the slope is -1/5
Example:

You made a profit of $65,000. You would like to invest the $65,000 into an account that pays you an annual compounded interest rate of 5.5%. You want to make annual withdrawals over the next 10 years such that by the end of this 10 year period, the amount remaining in the account will be zero dollars. Determine, from the given information, the amount of the annual withdrawals. please Round your answer to the nearest cent.

Answers

Answer:

 

d.   $8,623.40

Step-by-step explanation:

EDGE 2021

What is the GCF of 4x^ 2 +6x

Answers

Answer:

The GCF of 4x^2 + 6x

is. (2x )

hope it helps

2x

The answer is 2 because it just it

6x + 7b - 7x + 10x

What is the answer to this question?​

Answers

7x+7b = 7(x+b)
..............

Answer:7b+9x

Step-by-step explanation:hope I helped

PLEASE HELP

Your friend is looking at laptops for
college, and is comparing the different
screen sizes. If a laptop has a height of 6
in and a diagonal of 17.5 in, use the
formula below to find the width of the
laptop screen. Round your answer to the
nearest tenths place

Answers

17.5 = √6² + w²

17.5² = 36 + w²

306.25 = 36 + w²

270.25 = w²

√270.25 = w

16.4392822 = W

=  w = 16.44 in

In Mr. Elliot's garden, 1 8 of the flowers are red, 1 4 of them are purple, and 1 4 of the remaining flowers are pink. If there are 128 flowers, how many flowers are pink?

Answers

Answer:

20

Step-by-step explanation:

Given that:

Red flowers = 1/8

Purple = 1/4

(1/8 + 1/4) = (1 + 2) / 8 = 3/8

Fraction left :

1 - 3/8 =. 5/8

Pink flowers :

1/4 of fraction left ;

1/4 * 5/8 = 5/32

Number of pink flowers

Total number of flowers = 128

5/32 * 128

640 / 32

= 20

20 pink flowers

a car travels a distance of 50 km in 30 minutes. what is the average speed​

Answers

Answer:

100 km/hour, or 16.67 km/minute

Step-by-step explanation:

The sum of two numbers is 59. The difference between the two numbers
is 11. Which is the larger of the two numbers?

Answers

Answer:

35

Step-by-step explanation:

The numbers are 35 and 24

35 + 24 = 59

35 - 24 = 11

35 > 24

Is it point s,w,v, or R PLEase HELP

Answers

I think it is R,W ............
the answer to this question is r , v

please help!!!!!!!!

if XYZ ~ RST, find RS​

Answers

Answer:

RS = 38

Step-by-step explanation:

20x - 12 = 18x + 12

2x = 24

x =  12

3(12) + 2 = 38

The value of the side of triangle RS is equal to 38.

What is the similarity?

If two objects are having the same shape then they will be termed as similar. So in mathematics, if two figures have the same shapes, lines or angles then they are called similar.

Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.

Given that the sides of the triangle XYZ are, XY = 5x - 3, XZ = 60 and the sides of the triangle TR = 40, RS = 3x + 2.

The value of RS will be calculated as,

( 5x - 3 ) / ( 3x + 2 ) = ( 60 / 40 )

( 5x - 3 ) / ( 3x + 2 ) = ( 6 / 4 )

20x - 12 = 18x + 12

2x = 24

x = 12

RS = 3x + 2

RS = ( 3 x 12 ) + 2

RS = 36 + 2

RS = 38

Therefore, the value of the side of triangle RS is equal to 38.

To know more about similarities follow

https://brainly.com/question/2650733

#SPJ2

Describe how to graph the line y=2/3x+5

Answers

1. Plot a dot on 5 on the x-axis.
2. Go up 2 and right 3 and plot.
3. repeat step 2.

If h(x) = (f o g)(x) and h(x) = sqrt(x+5), find g(x) if f(x) = sqrt(x+2)

Answers

Answer:

g(x) = x + 3

Step-by-step explanation:

Givenh(x) = (f ο g)(x)h(x) = [tex]\sqrt{x+5}[/tex]f(x) = [tex]\sqrt{x+2}[/tex]To findg(x)Solution

We know that:

(f ο g)(x) = f(g(x))

Substitute x with g(x) and solve for g(x):

[tex]\sqrt{x+5}[/tex] = [tex]\sqrt{g(x)+2}[/tex]x + 5 = g(x) + 2x + 3 = g(x)g(x) = x + 3

Which two ordered pairs satisfy the equation y = 3x + 2 ?

* (0, 2) and (2, 8)
(1, - 1) and (- 2, 8)
(0, 2) and (- 1, 1)
(2, 8) and (0, 5)

Answers

Alright y= 3x +2 on a graph.

I see (0,2) and (2,8) both on the line

With c we see (0,2) but (-1,1)

Is wrong (2,8) is right but not (0,5)

Your best bet would be (0,2) and (2,8) because they are both on the line.

Hope this helps

21x+9 =
Help please

Answers

Answer:

3

Step-by-step explanation:

cross multiply

11. A paint color requires the ratio of green paint to yellow paint to be 4 : 9

a. A container of this paint has 36 pints of yellow paint Write a proportion
that gives the numbir g of pints of green paint in the container'

b. How many pints of green paint are in the container?

c. how many gallons of paint are in the container altogether?

Answers

Answer:

Step-by-step explanation:

1) 36:81

2)81 pints

3)14.625 gallons of paint

Find the distance from the center of a circle to a 14 m long chord if the diameter of the circle is 50 m.
(Draw a picture)

Answers

Answer:

700 I think...

Step-by-step explanation:

Multiply

2)
During a 500 minute car trip, Luke spent 74 minutes listening to his MP3 player, 56 minutes playing video games,
128 minutes watching a movie, and 38 minutes reading. The rest of the time he spent napping. If the time Luke
spent on these four activities is rounded to the nearest ten, about how many minutes did Luke spend napping?
A. 100 min.
B. 200 min.
C. 300 min.
D. 400 min.
Type here to search
O
9:28 PM
3/16/2021
DOLL

Answers

Answer:

B.) About 200 minutes napping

Step-by-step explanation:

74+56+128+38=296

500-296=204

204 is about 200

1.
Prove that the roots of x^2 + (1 - k).x+k-3 = 0 are real for all real values of k​

Answers

The roots of x^2 + (1 - k).x+k-3 = 0 are real for all real values of k

The equation is given as:

x^2 + (1 - k).x+k-3 = 0

For an equation to have real root, then the following must be true:

[tex]b^2 \ge 4ac[/tex]

In x^2 + (1 - k).x+k-3 = 0, we have:

a = 1

b = 1 - k

c = k - 3

So, we have:

[tex](1 - k)^2 \ge 4 * 1 * (k - 3)[/tex]

Evaluate

[tex]1 - 2k + k^2 \ge 4k - 12[/tex]

Collect like terms

[tex]k^2 - 2k - 4k + 1 + 12 \ge 0[/tex]

[tex]k^2 - 6k + 13 \ge 0[/tex]

Using a graphing calculator, the value of k is all real numbers

Hence, the roots of x^2 + (1 - k).x+k-3 = 0 are real for all real values of k

Read more about real values at:

https://brainly.com/question/6499629

Use the Distributive Property to simplify the expression.
9(3+c+ 4) =

Answers

Answer:

9c4+27 is what I got from solving

Answer:

9(7+c)

I hope it's correct sorry if I'm wrong :(

The surface area of this cube is 864 square yards. What is the value of q?

Answers

Answer:

Volume  

=

512

cubic feet

Explanation:  

A cube has  

6

faces all with equal area.

If the total surface area of the cube is  

384

sq.ft.

then each face has an area of  

384

÷

6

=

64

sq.ft.

Each face of a cube is a square and if we denote the length of an edge as  

E

then the area of a face (in this case  

64

sq.ft.) is equal to  

E

2

XXX

E

2

=

64

sq.ft.

XXX

E

=

8

sq.ft.

The volume of a cube with edges of length  

E

is  

E

3

In this case  

Volume

=

E

3

=

8

3

=

512

sq.ft.

Hope i helped

123.7 cm= How many meters?

Answers

123.7 cm = 1.237 meters

hope it helps.

4. Using the figure below, find the area of the circle. 10 cm​

Answers

Answer:

we need the full picture of the circle to see if 10 cm is only half or not

Answer this - 3 - 3 (+2)

Answers

Answer:

-3-6= -9

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

Answer:

if you mean -3-3 +2 then it is -4

if you mean -3-3(2) then it is -9

Step-by-step explanation:

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