3 years ago

Simplify the expression using positive exponents: x^7/x^3

Mathematics

2 answers:

poizon [28]3 years ago

6 0

Answer:

x power of 4

Step-by-step explanation:

Nikolay [14]3 years ago

3 0

Answer:

x power of 4

Step-by-step explanation:

Subtract 7 by 3

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If the population of a particular country is growing at 1.5 % compounded continuously, how long will it take the population to

DIA [1.3K]

$e^{0.015t}=3$
Taking natural logs of both sides, we get
0.015t=ln 3
t = ln 3/0.015 = 73.24

The answer is 73.24 years.

5 0

3 years ago

Simplify 4^2 • 4^8

pantera1 [17]

Answer:

$4^{10}$

Step-by-step explanation:

Using the rule of exponents

$a^{m}$ × $a^{n}$ ⇔ $a^{(m+n)}$ , thus

4² × $4^{8}$ = $4^{(2+8)}$ = $4^{10}$

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3 years ago

Given that P = (-5, 11) and Q = (-6, 4), find the component form and magnitude of vector QP.

dybincka [34]

We'll use the Pythagorean Theorem (otherwise known as the Distance Formula):

Going from Q to P, x increases by 1 and y increases by 7. Thus, the component form of QP is <1,7>, and the magnitude of this vector is √(1^2+7^2) = 5√2.

Note: this is equivalent to <1, 7>, square root of 50.

7 0

3 years ago

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I need help with this quick question!! Extra points and I’m marking brainlist to step by step explanation

mezya [45]

Answer:

They all are solutions!

Step-by-step explanation:

$3x-y=15\\6x-2y=30\\$

An easy way to check this is just to substitute each pair of values into both equations:

(a) $3(6)-3=15\\6(6)-2(3)=30\\So before going any farther, we can see that A works!\\\\$

(b)

$3(7)-6=15\\6(7)-2(6)=30\\So B works!\\$

(c)

$3(8)-9=15\\6(8)-2(9)=30\\So C works!$

Have a nice day!

7 0

3 years ago

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What is 369+12354 pls

Anastaziya [24]

Answer:

The asnwer is 12723

Hope this helped!!!XD

7 0

3 years ago