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attashe74 [19]
3 years ago
10

What is the sum of (1.3 × 10-7) and (-3.8 × 10-3)?

Mathematics
1 answer:
pav-90 [236]3 years ago
8 0
1.3 x 10⁻⁷ + -3.9 x 10⁻³

1.3 x 10⁻⁷ = 0.00000013
-3.9 x 10⁻³ = -0.0039

-  0.00390000
+ <u>0.00000013   </u>
 - 0.00389987 ⇒ -3.8 x 10⁻³  CHOICE D.

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3 years ago
PLAEASE HELP ME <br>If the equation of a line is 2y+3x=3, what is the y intercept of the line?​
Alja [10]

Answer:

3/2

Step-by-step explanation:

2y+3x=3

This represents a linear equation and the format for a linear equation is

y = mx+b

m = slope

b= y-intercept

we have to subtract 3x from both sides to make this the y=mx+b form

2y=-3x+3

and divide both sides by 2

y = (-3x+3)/2

3/2 or 1.5 is the y-intercept

the constant of a linear equation (or 3) is the y-intercept, if there is no constant then the y-intercept is 0

6 0
3 years ago
Read 2 more answers
N+5n-3c PLS anyone I need this for my test And I need it right now pls
iVinArrow [24]

<em><u>Answer:</u></em>

I'm assuming this is a <em>combining like terms</em> question, in which case the answer would be 6n - 3c.

<u><em>Step-by-step explanation:</em></u>

I'm guessing your teacher wants you to combine the like terms, and 1n plus 5n = 6n, minus 3c is the answer, which is 6n - 3c. If your teacher wanted you to solve for each variable, you can't do that because you don't have enough information, and there's an infinite number of solutions.

<em>Hope this helps! Feel free to give me Brainliest if you feel this helped. Have a good day, and good luck on your test. :)</em>

7 0
2 years ago
Cho tam giác ABC vuông tại A , đường cao AH . Gọi D và E lần lượt đối
stepladder [879]

Answer:

Sorry i don't speak Vietnam so i can't help you if you write it in English i will have a chance to help you

6 0
2 years ago
Two squares have sides 12cm and 4cm respectively. What is the ratio of their sides​
Nookie1986 [14]

Answer:

3 : 1

Step-by-step explanation:

We have to compare the value of two sides.

Ratio of sides = 12 : 4 = \dfrac{12}{4}=\dfrac{4*3}{4*1}=\dfrac{3}{1}

                       =  3 : 1

6 0
2 years ago
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