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3 years ago

2x +1 = 7 -Z | -1 = [?] = 2x 3

Mathematics

1 answer:

enot [183]3 years ago

8 0

Answer: nop

Step-by-step explanation:

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Apply the laws of exponents, calculate the result and express the result in scientific notation, and as a decimal:

DochEvi [55]

We are given

$\frac{(4.1\times 10^{3})(2.8\times 10^{-7})}{(3.1\times 10^{-5})}$

We can move like terms altogether

$\frac{(4.1\times 10^{3})(2.8\times 10^{-7})}{(3.1\times 10^{-5})}=\frac{4.1\times 2.8}{3.1}\times \frac{10^{3}\times 10^{-7}}{10^{-5}}$

now, we can use property of exponent

$a^m\times a^n=a^{m+n}$

$=\frac{4.1\times 2.8}{3.1}\times \frac{10^{3-7}}{10^{-5}}$

We can use another exponent property

$\frac{a^m}{a^n} =a^{m-n}$

so, we get

$=\frac{4.1\times 2.8}{3.1}\times 10^{3-7+5}$

$=\frac{4.1\times 2.8}{3.1}\times 10^{1}$

$=3.70323\times 10^{1}$

So, the result in scientific notation is

$=3.70323\times 10^{1}$ ..........Answer

So, the result as a decimal is

$=37.0323$ .............Answer

8 0

4 years ago

For △RST and △UVW, ∠R≅∠U, ST≅VW, and ∠S≅∠v. Explain how you can prove △RST ≅△UVW by ASA

monitta

Answer:

See explanation below.

Step-by-step explanation:

Note that in △RST and △UVW

m∠T=180°-m∠R-m∠S;
m∠W=180°-m∠U-m∠V.

Since ∠R≅∠U and ∠S≅∠V, then ∠T≅∠W.

In ΔRST and ΔUVW:

∠S≅∠V (given);
∠T≅∠W (proved);
ST≅VW (given).

ASA theorem that states that if two angles and the included side of one triangle are congruent to the corresponding parts of another triangle, then the triangles are congruent.

By ASA theorem ΔRST≅ΔUVW.

6 0

3 years ago

Which function is shown in the graph below?

Paha777 [63]

It is the second function:
y=(1/2)^(x-3)
When x=0, the exponent is -3. (1/2)^-3 is 8.
y = 8+1 = 9

5 0

3 years ago

Read 2 more answers

Please help, I can't remember any of this.

Neporo4naja [7]

The correct answer is the third one.

However, i would suggest you to remember the following simple rule:
$a^{2}=b \newline
a=\pm\sqrt{b}.$

7 0

3 years ago

Lisa is a broker who charges 1.5% per stock transaction fee. A competing online broker charges $24 per trade. If someone is plan

alexgriva [62]

Answer:

Step-by-step explanation:

For equating the transaction fees of Lisa and the broker:

1.5 % of Total stock purchase price = $24

$\frac{1.5}{100} * x = 24$

∴Total Stock purchase price = $1600

6 0

4 years ago