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IrinaK [193]
2 years ago
9

What is (1.2 x 10^-2) x (3 x 10^5)

Mathematics
1 answer:
liraira [26]2 years ago
6 0

Answer:

B. 3.6 x 10^3

Step-by-step explanation:

(1.2 x 10^-2) x (3 x 10^5)

When we multiply terms with powers , we multiply the factors out front and add the exponents

a * 10^b  * c* 10^d = ac * 10^(b+d)

(1.2 x 10^-2) x (3 x 10^5)   = (1.2* 3) * 10^(-2+5)

                                         = 3.6 * 10 ^3

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Which is the slope of a line that is perpendicular to the line represented by the equation x-y = 8
Marat540 [252]

Answer:

-1

Step-by-step explanation:   from the equation,  x-y=8,  make  y the subject of the formulae , this gives - y=  -x +8

divide all through by (-) sign, this gives   y= x - 8

from the last equation above, the slope is the coefficient of x which is 1. since it is perpendicula, the answer is -1

by co efficient, we mean the number multiplying the unknown

8 0
3 years ago
Read 2 more answers
Simplify. 5 - 2(x - 3)
V125BC [204]
To solve this, we simply need to remember our rules about order of operations. They tell us that first, we should distribute the 2 with the rest of the parentheses.

5-2(x-3)
5-2x+6

Next, we should combine our like-terms.

5-2x+6
11-2x

Seeing as we do not know the value of the variable, the simplest form of the expression is 11-2x.
3 0
3 years ago
5x - 9 = -8y - 3 what’s the x and y value of this equation
Feliz [49]

Answer:

y= -\frac{5x}{8} +\frac{3}{4} \\

x= -\frac{8y}{5} +\frac{6}{5}

Step-by-step explanation:

8 0
3 years ago
I need help with my math
natulia [17]

The Slope of a Line

Suppose we know the line passes through points A(x1,y1) and B(x2,y2). The slope can be calculated with the equation:

\displaystyle m=\frac{y_2-y_1}{x_2-x_1}

The graph provided suggests the use of the points (3,-3) and (5,-3). The slope is:

\displaystyle m=\frac{-3+3}{5-3}=\frac{0}{2}=0

The slope of the line is 0. It corresponds to a horizontal line

6 0
1 year ago
How can I find how many 13 are in 33?
ycow [4]

Answer:

therefore, 33 divided by 13 equals 2 and 7 thirteenths (can be rewritten as 2 7/13)  

Step-by-step explanation:

Long division:

13  33

13*2 = 26

33 - 26 = 7

we have: 33/13 = 2 r7

we know that we can rewrite the remainder as 7/13

therefore, 33 divided by 13 equals 2 and 7 thirteenths (can be rewritten as 2 7/13)  

5 0
3 years ago
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