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3 years ago

I need help with this question. Please help

Mathematics

1 answer:

PIT_PIT [208]3 years ago

8 0

The answer is 273/16 or 17.06 because when you have a negative exponent you have flip the number so 2 will become 1/2^4 and that equals 1/16 and ads that to 17 and you need the same denominators and 17 as a fraction is 17/1 so 17 × 16 is 272, so 1/16 + 272/166 = 273/16 or 17.06

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Use the substitution method to solve the system of equations. Choose the correct ordered pair.3x + y = 10y = x – 2

almond37 [142]

B. For the easiest way to find this, solve the first equation for y and then plug into the second equation for y.

4 0

4 years ago

Read 2 more answers

Mr. Smith need to move $6 million out of the country. The dimensions of a US bill is 2.61 inches by 6.14 inches by

Nonamiya [84]

Answer:

47.85 ft³

Step-by-step explanation:

$6 million will be $6/$5 million = 1.2 million bills of the $5 denomination.

The volume of that is ...

(1.2×10⁶ bills)×((2.61 in)(6.14 in)(0.0043 in)/bill)/(1728 in³/ft³)

= 1.2×2.61×6.14×4.3/1.728 ft³ ≈ 47.85 ft³

___

The units analysis is ...

$(\text{number of bills})\cdot\dfrac{\text{volume}}{\text{bill}}}=\text{volume}$

where the volume per bill is the product of the given dimensions, and the conversion to cubic feet is ...

in³ × (ft³/in³) = ft³

where the number of cubic feet per cubic inch is 1/1728.

6 0

4 years ago

F(n) = n² – 3 g(n) = 4n - 1 Find f[g(1)]

SVETLANKA909090 [29]

Answer:

f[g(1)]=6.

Explanation:

Given f(n) and g(n) defined below:

$\begin{gathered} f\mleft(n\mright)=n^2-3 \\ g\mleft(n\mright)=4n-1 \end{gathered}$

First, we evaluate g(1):

$\begin{gathered} g\mleft(1\mright)=4(1)-1 \\ =4-1 \\ g(1)=3 \end{gathered}$

Therefore:

$\begin{gathered} f\mleft(g(1)\mright)=f\mleft(3\mright) \\ f\mleft(3\mright)=3^2-3 \\ =9-3 \\ =6 \end{gathered}$

Therefore, f[g(1)]=6.

8 0

1 year ago

Add 20 to a number, square the sum and add the square of the number. The result is 848. The number is?

Katyanochek1 [597]

That a bit tricky question :-

so let's do the question in small steps :)

Let a number be x.

Part 1 :-

Add 20 to a number

here we have to take the sum of 20 and x so equation formed :-

20 + x

Part 2 :-

square the sum

So in this we have to square 20+x , so equation formed.

(20 + x)²

Part 3 :-

add the square of the number

So in this part we have to add (20 + x)² and x's square i.e x² , so equation formed :-

(20 + x)² + x²

Part 4 :-

The result is 848

So in this we the expression which came in previous part is equal to 848, so equation formed:-

(20 + x)² + x² = 848

Part 5:-

To find value of x

So simplify the whole equation and we will get x.

➻ (20 + x)² + x² = 848

➻(20² + x² + 2 × x × 20) + x² = 848

➻(400 + x² + 2 × x × 20) + x² = 848

➻(400 + x² + 40 × x ) + x² = 848

➻(400 + x² + 40x ) + x² = 848

➻400 + x² + 40x + x² = 848

➻400 + 40x + 2x² = 848

➻2(200 + 20x + x²) = 848

➻200 + 20x + x² = 848/2

➻200 + 20x + x² = 424

➻20x + x² = 424 - 200

➻20x + x² = 224

➻x² + 20x - 224 = 0

➻x² +28x - 8x - 224 = 0

➻x( x + 28) - 8 (x + 28)

➻(x - 8)(x + 28)

Two solutions:-

x = 8

x = -28

4 0

2 years ago

ILL GIVE BRAINLIST!! PLEASE HELP! Theres 2 answers!!

pantera1 [17]

Answer:

Option B

Step-by-step explanation:

Well, now that I found out the prices per ounce, it has to be option B. Here is my reasoning:

Option A, when you do 2.98÷15.5, you get 0.19225...

Option B, is a different story. When you do the same process, it amazingly comes out to 0.1785...(this means that Option B is 0.2 cents (rounded) cheaper per unit, then Option A.

So its option B

Your welcome.

7 0

3 years ago