2 years ago

How many times larger is 9×10 to the fourth power than 3×10 to the second power

Mathematics

1 answer:

marin [14]2 years ago

5 0

3 multiplied by ten to the second power

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Which graph shows the solution to the following equation 2x-5/x^2 = -4

notsponge [240]

Answer:

THE THIRD ONE

Step-by-step explanation:

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2 years ago

How many solutions does 15x+12y=18 have

dangina [55]

Answer: 2 or more.

X and Y could be anything, so there are at least two answers

8 0

2 years ago

When solving the equation x2 – 8x - 7 = 0 by completing the square, which equation

IgorLugansk [536]

<h3>Answer:-</h3>

Lets Solve

$\\ \rm \longmapsto \: {x}^{2} - 8x - 7 = 0 \\ \\ \rm \longmapsto \: {x}^{2} - 8 {}^{}x = 7 \\ \\ \rm \longmapsto \: 4( {x}^{2} - 8x) = 4 \times 7 \\ \\ \rm \longmapsto \: {4x}^{2} - 32x = 28 \\ \\ \rm \longmapsto \: {(2x)}^{2} - 2 \times 2x \times 8 = 28 \\ \\ \rm \longmapsto \: (2x) {}^{2} - 2 \times 2x \times 8 + {8}^{2} = 28 + {8}^{2} \\ \\ \rm \longmapsto \: {(2x - 8)}^{2} = 64 + 28 \\ \\ \rm \longmapsto \: {(2x - 8)}^{2} = 92 \\ \\ \rm \longmapsto \: 2x - 8 = \underline{ + }9.3 \\ \\ \rm \longmapsto \:2x = 8 + 9.3 \: or \: 8 - 9.3 \\ \\ \rm \longmapsto \:2x = 17.3 \:or \: - 1.3 \\ \\ \rm \longmapsto \:2x = 17.3 \\ \\ \rm \longmapsto \:x = \frac{17.3}{2} \\ \\ \rm \longmapsto x = \:8.6$

Ignore negative value

4 0

3 years ago

A family has an annual income of $25,200. Of this, 1/4 is spent for food, 1/5 or housing, 1/10 for clothing, one ninth for

STatiana [176]

Simply divide $25,200 by 5
$25200 \div 5 = 5040$

$5,400 was spent on housing

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3 years ago

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A square cake is cut into 16 equal parts. ben ears 7/16 of the cake. bell eats ¼ of the cake. what fraction of the cake is left?

Alexxx [7]

Set both fraction to a common denominator

7/16 and 4/16

now add them together

7/16 + 4/16 = 11/16

now subtract that from a full cake

16/16 - 11/16 = 5/16

there are 5/16 of the cake left

4 0

3 years ago