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3 years ago

Can anyone answer this plz ill give brainliest

Mathematics

1 answer:

chubhunter [2.5K]3 years ago

8 0

Answer: D. $1.00

Step-by-step explanation: Good luck! :D

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Help please, try to explain it in steps for me if u can't that's fine, ty!

Iteru [2.4K]

Answer:

Step-by-step explanation:

We are given that Expression One is:

$2\cdot 10^x$

And Expression Two is:

$4\cdot 10^{x+y}$

We are given that the value of Expression Two is 20,000 times greater than the value of Expression One. And we want to find the value of y. In other words:

$4\cdot 10^{x+y}=20000(2\cdot 10^x)$

We can divide both sides by four:

$10^{x+y}=10000\cdot 10^x$

Recall that:

$x^a\cdot x^b=x^{a+b}$

Therefore:

$10^x\cdot 10^y=10000\cdot 10^x$

Divide both sides by 10ˣ:

$10^y=10000$

Solve for y:

$\displaystyle y = \log_{10}10000 = 4$

Our answer is B.

3 0

3 years ago

HELP RIGHT NOW ! ASAP !

soldier1979 [14.2K]

Answer:

Its 6

Step-by-step explanation:

7 0

3 years ago

In a triangle the first angle is 10 degrees more than the second angle. The third angle is equal to the sum of first 2 angles .

timurjin [86]

First angle= x+10
Second angle = x
Third angle = x+x+10 or 2x+10

X+10+x+2x +10=180
4x+20=180
Subtract 20 from both sides
4x=160
Divide both sides by 4
X=40
First angle =50
Second angle=40
Third angle =90

8 0

3 years ago

Factor 15 + 50. 5(10 + 3) 5(3 + 10) 3(5 + 25) 10(5 + 5)

Agata [3.3K]

Answer:

Step-by-step explanation:

So we have the expression:

$15+50$