All categories

2 years ago

Hi please help me!! thanks

Mathematics

1 answer:

Artist 52 [7]2 years ago

4 0

Answer:

3.2 x 10^13

Step-by-step explanation:

(8x10^4)(4x10^8)

reorder the terms using the commutative property

(8x4)x(10^4x10^8)

multiply

32x (10^4 x 10^8)

= 32 x 10^4+8

= 32 x 10^12

now convert to scientific notation

=3.2 x 10^13

You might be interested in

HELP PLEASE !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

aleksandrvk [35]

50km to 80km is 30km

10c to -80c is -90c

and since it linear (Which means the change is constant or the same)

every 10 km show a -30c decrease

60 km is -20c

70km is -50c

answer is c

5 0

3 years ago

If sin(x) = squareroot 2 over 2 what is cos(x) and tan(x)

Bumek [7]

Answer:

cos(x) = square root 2 over 2; tan(x) = 1

Step-by-step explanation:

$\frac{\sqrt{2} }{2}$

was, before it was rationalized,

$\frac{1}{\sqrt{2} }$

Therefore,

$sin(x)=\frac{1}{\sqrt{2} }$

The side opposite the reference angle measures 1, the hypotenuse measures square root 2. That makes the reference angle a 45 degree angle. From there we can determine that the side adjacent to the reference angle also has a measure of 1. Therefore,

$cos(x)=\frac{1}{\sqrt{2} }=\frac{\sqrt{2} }{2}$ and

since tangent is side opposite (1) over side adjacent (1),

tan(x) = 1

7 0

3 years ago

What’s the value of x?

11Alexandr11 [23.1K]

Answer:

98 degrees

Step-by-step explanation:

m<H = 45, m<F = 53

180 = 45 + 53 + (180-x)

82 = 180-x

x+82 = 180

x = 98

3 0

2 years ago

Read 2 more answers

Question 3 of 10<br> Which of the following expressions is equivalent to the expression (n + 4)3?

NARA [144]

Answer:

3n+12

Step-by-step explanation:

(n+4)3=

3n+12

Just multiply the number and variable inside the parentheses by 3

5 0

3 years ago

The expression \dfrac12bh

mariarad [96]

Answer:

2 one.

Step-by-step explanation:

3 0

2 years ago