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ladessa [460]
3 years ago
8

Could you help me with these?

Mathematics
1 answer:
Sati [7]3 years ago
8 0

Step-by-step explanation:

Molly should have multiplied three first so that it would have been

x + 6 + 3x + 12

4x + 18

Dylan did not add x to 5x

it should have been

6x - 12

Jose did not multiply 7 and -5

it should have been

x + 3 + 7x - 35

8x - 32

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Help please (will chose brainliest)
goldfiish [28.3K]

Answer:

LEts start with 10^1

If we have positive exponent then we add zeros

10^1= 10

10^2=100 (Put 2 zeros because exponent is 2)

10^3=1000 (Put 3 zeros because exponent is 3)

10^4=10000 (Put 4 zeros because exponent is 4)

10^5=100000 (Put 5 zeros because exponent is 5)

For negative exponent , we make a fraction . we put 1  at the top always and number as the bottom

10^{-1}=\frac{1}{10} (Put 1 zero at the bottom because exponent is -1)

10^{-2}=\frac{1}{100} (Put 2 zeros at the bottom because exponent is -2)

10^{-3}=\frac{1}{1000} (Put 3 zeros at the bottom because exponent is -3)

3 0
3 years ago
(I NEED HELP QUICK) What is the value of S4?
vivado [14]
The value of 4$ is 1.81%
3 0
3 years ago
Read 2 more answers
X^2-3=5x simplify this
Alex Ar [27]
To simplify x^2-3 =5x

You would first subtract 5x from both sides

X^3-5x-3

Next you would plug this into the quadratic equation:

X=5+/- the square root of: -5^2 -4(1)(-3)/2(1)

Then simplify,
5+/- the squareroot of 24 + 12 / 2

5+/- The squareroot of 36 /2

5+/- 6 / 2

Then solve if it’s an addition or subtract

5+6/2

X=11/2 or 5 1/2

5-6/2

X= -1/2

The answer is x=-1/2 or x=11/2

Hope this helps

7 0
3 years ago
How do you convert 1/40 to a decimal form
dezoksy [38]
The answer will be 0.4 .
6 0
3 years ago
Read 2 more answers
Which of the following values would complete the ordered pair if the point is on the graph of ƒ(x) = -2x + 3?
Vika [28.1K]

The answer would be C. 1 because if you replace x in the equation with 1 and solve the equation it would be<em> </em><em>1</em>

8 0
3 years ago
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