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3 years ago

Use the rules for multiplication by powers of 10 to calculate 3 x 100

Mathematics

1 answer:

Yakvenalex [24]3 years ago

4 0

300

because 3 x 1 = 3 +00 = 300... make sense?

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What is the value of a if (2a +3) - (4a-8)= 7

mars1129 [50]

( 2a + 3 ) - ( 4a - 8 ) = 7
2a + 3 - 4a + 8 = 7
-2a + 11 = 7
-2a = -4
a = -4 / -2
a = 2

7 0

3 years ago

What is the slope-intercept equation of the line below ?

Jobisdone [24]

Answer:

B. Y= -3x + 4

Step-by-step explanation:

Apex

Hope this helps Have a nice day

6 0

3 years ago

What is (64-6squared)÷(5+2)you are welcome

lina2011 [118]

I believe the correct answer is 1.08
64-6= 58
58 squared= 7.6(or 7.61)
5+2= 7
7.6÷7= 1.08

4 0

3 years ago

Complete the square: x2 - 6x + Blank = -13 + Blank

kirza4 [7]

Answer:

x^2 - 6x + 9 = (x-3)^2

Step-by-step explanation:

4 0

3 years ago

At a gas station the price of gas is $2.40 a gallon. Draw a graph to represent the relationship between the cost of gas and the

aivan3 [116]

Answer:

Part A) The graph in the attached figure

Part B) $y=2.40x$

Step-by-step explanation:

Let

y------> the price of gas

x-----> the volume of gas purchase

we know that

The relationship between the cost of gas and the volume purchase represent a direct variation and remember that a relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form $y=kx$

In a proportional relationship the constant of proportionality k is equal to the slope m of the line and the line passes through the origin

In this problem the constant of proportionality k is equal to

$m=k=2.40\frac{\$}{gallon}$

and the y-intercept b is equal to zero because the line passes through the origin

$b=0$

therefore

the linear equation is

$y=2.40x+0$

$y=2.40x$

using a graphing tool

see the attached figure

6 0

4 years ago