1. Calculate the value of 8. 1 × 103 − 2. 4 × 102 in standard form.
2. Blood comprises 8% of the weight of a human. Amy weighs 40kg. Find the weight of her blood.

Answer:

-2.5

Step-by-step explanation:

Answer:

The answer is 5

hope it helps

Answer:

n = 5 units

Step-by-step explanation:

We can solve this using 2 different equations which lead to the same answer:

Equation #1: Sin(30) = n/10

=>Sin(30) * 10 = n

=> 5 = n

Equation #2: Cos(60) = n/10

=> Cos(60) * 10 = n

=> 5 = n

If a number is a whole number, it is in it's simplest radical form, therefore;    n = 5 units is the correct answer

Hope this helps!

Answer:

w=32

Step-by-step explanation:

33+115+w=180

148+w=180

w=180-148

w=32

Answer:

it will require main verbs and auxiliary verbs that are in agreement with singular nouns and some singular pronouns.

Step-by-step explanation:

Answer:

x = 6

y = 2

Step-by-step explanation:

From the second equation (x - 3y = 0) we know that x = 3y, now we just substitute 3y instead of "x" in the first equation and get...

x + 2y = 10

3y + 2y = 10

5y = 10

y = 2

Now we can find "x" since we know what "y" is equal to.

x + 2y = 10

x = 10 - 2y

x = 10 - (2)(2)

x = 10 - 4

x = 6

Answer:

104

Step-by-step explanation:

you have to find the least common multiple lcm between the bottom numbers. and since there is none before you just multiply the two together to get the same bottom number.

Answer:

8

Step-by-step explanation:

To do this, multiply the top and bottom of the first fraction by the second fraction's denominator, then multiply the top and bottom of the second fraction by the first fraction's denominator. This is how I answered on a test AND got it correct.

Answer:

(0,5)

Step-by-step explanation:

Answer:

(0,5)

The place where the line crosses the y-intercept.

Answer:

C

Step-by-step explanation:

hope this help Im pretty sure it's right

The graph for the inequality given is graph 1.

An inequality is a relation between two numbers or expressions that are not equal. It can show which of them is greater or smaller by using symbols like < or >. It can also be a statement of fact about the order relationship of quantities.

Given that an inequality, 2-(x+3) < 4 -2x, we need to determine its graph,

For the same solving the inequality,

2-(x+3) < 4 -2x

2-x-3 < 4 - 2x

Add x to both sides,

2-3 < 4-x

-1 < 4-x

Subtract 4

-1-4 > -x

x > 5

Since, the x is greater than 5 so the graph will be the numbers that greater than 5,

Hence, the graph is 1.

Learn more about inequality click;

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Answer:

a, bx squared

Step-by-step explanation:

Answer:

x=7

Step-by-step explanation:

8(1X/4 +12 - 1 x 1/2X)=82

8(X/4 +12-1 x 1/2 x X)=82

8(X/4+ 12 - 1/2x)=82

8 X x/4 + 96+8 X -x/2=82

2x +96 +8 X -x/2=82

2x +96+ 8(-1)/2=82

2x +96 -8x/2 =82

2x+96-4x=82

-2x+96=82

-2x=-14

x=7

plz like and rate thank you

Answer:900 square units

Step-by-step explanation:

The radius is 90 units. Then the area of the shaded sector will be 900π square units.

Let r be the radius of the sector and θ be the angle subtended by the sector at the center. Then the area of the sector of the circle will be

A = (θ/360°) πr²

The circumference of circle T is 180π units. Then the radius of the circle is given as,

C = 180π

2πr = 180π

r = 90 units

Then the area of the sector is given as,

A = (40°/360°) π x 90²

A = 900π square units

The area of the shaded sector will be 900π square units.

More about the area of the sector link is given below.

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Answer:

5.65685424.

Step-by-step explanation:

Square Root of 32: √32 = 5.65685424...

Answer:6

Step-by-step explanation:

Answer = −3a − 4b + 5

2x+3x=4x

4x+1

Hope this helps!

(Tell me if it is wrong)

Answer:

6x²+2x

Step-by-step explanation:

happy to help

Answer:

(7,4)

Step-by-step explanation:

Answer:

160 iPads with built in WiFi.

Step-by-step explanation:

10% of 400 = 40, now times by 4.

Renee can play 11 different games.

The most fundamental operations in arithmetic are addition, subtraction, multiplication, and division. However, arithmetic also includes more complex operations like manipulating percentages, square roots, exponentiation, logarithmic functions, and even trigonometric functions, which are analogous to logarithms. Other examples of more complex operations include exponentiation. Arithmetic expressions must be evaluated in accordance with the intended order of operations.

Given total amount Renee have = $60

Cost for entry in park = $25

The amount left with Renee = 60 - 25

The amount left with Renee =  $35

now cost for each game is $3

total no. of games can be played in $35 = [tex]\frac{ The amount left with Renee}{ cost for each game}[/tex]

 35/3  = 11.667

Hence we only count integer digits which is 11; so  Renee can play 11 different games.

Learn more about arithmetic operations;

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Answer:

502 (sorry if I’m wrong)

Step-by-step explanation:

Answer:

502

Step-by-step explanation:

It doesn't end with 0

Answer:

3x+3y+3z

Step-by-step explanation:

Answer:

-2: 1/16 1=4 3=64

Step-by-step explanation

when doing to the power of a number its just that number multipled by itself that many times. When going into the negatives, you have to flip the number first and then multiply the denominator by the x power.

Answer:

33.3 weeks

Step-by-step explanation:

Let us represent number of weeks = w

Investment a starts with $1000 and increases its value by $80 each week.

$1000 + $80 × w

1000 + 80w

Investment b starts with $2000 and loses $50 of its value each week.

$2000 - $50 × w

2000 - 50w

After how many weeks will the two investments have the same value?

1000 + 80w = 2000 - 50w

Collect like terms

80w + 50w = 2000 - 1000

130w = 1000

w = 1000/30

w = 33.333333333 weeks

Approximately

After 33. 3 weeks, the Investment will have the same value

Answer:

It's C ez claps

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

It's needing to be doubled in size. That should be it hope it helps

Answer:

307

Step-by-step explanation:

You get the area from every side like so-

12 * 11= 132

12 * 5= 60

12 * 5=60

5 * 11 = 60

You add them all up to get 307.

I don't know if that's a 5 or a 3 on the side there but I can edit this if it's a different number.

Answer: -1

Step-by-step explanation:

17-18 looks easy but, the answer would be minus.

So, the answer would be: -1

Answer:

k = -8/3

y = -4 when x = 3/2

Step-by-step explanation:

-16 = 6k

k = -16/6 or -8/3

y = -8/3(3/2)

y = -4

Answer:

6/10 or 0.6

Step-by-step explanation:

Answer:

4ew

Step-by-step explanation: