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Kaylis [27]
3 years ago
12

How much of earth's surface is cover by land? write your answer in scientific notation

Mathematics
1 answer:
sp2606 [1]3 years ago
7 0


(5.1x10^8) - (3.61x10^8)

(5.1-3.61) x 10^8

1.49 x 10^8 = Final answer
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HELP PLZ !!!<br><br> 4) what is the value of x to the nearest tenth ? <br><br> refer to image above
Jlenok [28]

Answer:

x = 34.9   to the nearest tenth.

Step-by-step explanation:

tan 64 = opposite side / adjacent side = x / 17.

x = 17 * tan 64

= 34.855

7 0
3 years ago
Select all the pairs of equivalent expressions.
iren2701 [21]

Answer:

\huge\boxed{(3^4)^4=3^8\cdot3^8}\\\boxed{4^3\cdot5^3=20^3}\\\boxed{(4^3)^3=4^3\cdot4^3\cdo4^3}

Step-by-step explanation:

a^n\cdot a^n=a^{n+m}\\\\(a^n)^m=a^{n\cdot m}\\\\(a\cdot b)^n=a^n\cdot b^n\\=====================

(4^3)^3=4^{3\cdot3}=4^9\\4^3\cdot4^3=4^{3+3}=4^6\\\\4^9\neq4^6\to(4^3)^3\neq4^3\cdot4^3\\==================

(3^4)^4=3^{4\cdot4}=3^{16}\\3^8\cdot3^8=3^{8+8}=3^{16}\\\\(3^4)^4=3^8\cdot3^8\\================

6^4\cdot3^4=(6\cdot3)^4=18^4\\\\18^4\neq18^8\to6^4\cdot3^4\neq18^8\\=================

4^3\cdot5^3=(4\cdot5)^3=20^3\\\\4^3\cdot5^3=20^3\\=================

(4^3)^3=4^{3\cdot3}=4^9\\4^3\cdot4^3\cdot4^3=4^{3+3+3}=4^9\\\\(4^3)^3=4^3\cdot4^3\cdot4^3

3 0
3 years ago
Give the slope between the points<br> (-2,3) (-5, -9)
valentina_108 [34]
M = (-9 - 3) / (-5 - -2)
m = -12 / -3
m = 4

The slope is 4.
4 0
2 years ago
Read 2 more answers
Graph the equation F(x)=(1/3)^x
scoray [572]

The value of a=9,b=3 and c=1

Step-by-step explanation:

The graph shown is for function f(x)

The given function is f(x)=(\frac{1}{3}) ^{x}

Table says,

X      Y

-2      a

1        b

0       c

1     (1/3)

2    (1/9)

To find value of a:

From table, for output value a, input value, x=(-2)

we can write f(-2)=a

Therefore,

f(x)=(\frac{1}{3}) ^{x}

f(-2)=(\frac{1}{3}) ^{(-2)}

a=(\frac{1}{3^{(-2)}})

a=3^{(2)}

a=9

To find value of b:

From table, for output value a, input value, x=(-1)

we can write f(-1)=b

Therefore,

f(x)=(\frac{1}{3}) ^{x}

f(-1)=(\frac{1}{3}) ^{(-1)}

b=(\frac{1}{3^{(-1)}})

b=3^{(1)}

b=3

To find value of c:

From table, for output value a, input value, x=(0)

we can write f(0)=c

Therefore,

f(x)=(\frac{1}{3}) ^{x}

f(0)=(\frac{1}{3}) ^{(0)}

c=(\frac{1}{3^{(0)}})

c=1

5 0
2 years ago
U
Ivanshal [37]

Answer:

The number missing on the number line is<em> </em><em>(7)!</em>

There should be <em>(2)</em> dots above the number 4.

There should be <em>(4)</em> dots above the number 6.

A good title for the dot plot is;

(<em>Age you lost your first tooth!!!)</em>

<em></em>

-- <u>I hope this helped!!Could i get brainliest if i'm correct please?--</u>

3 0
3 years ago
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