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amid [387]
3 years ago
10

Write 0.000021 in scientific notation.

Mathematics
2 answers:
astraxan [27]3 years ago
7 0

Answer:

2.1 × 10^-5

Step-by-step explanation:

Aliun [14]3 years ago
5 0

Answer:

2.1 x 10^{-3}

Step-by-step explanation:

Hope this helps!

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x + a)(x + 3)(2x+1) = bx^3 + cx^2 + dx -1(x + a)(x + 3)(2x+1) = bx^3 + cx^2 + dx -10. find values for a b c and d​
mario62 [17]

Answer:

a=-5,b=3c=-8 d=?

Step-by-step explanation:

4 0
3 years ago
−2(−3x+4)+3x−3=−29 what does x equal
gogolik [260]

Answer:

x = −2

Step-by-step explanation:

Let's solve your equation step-by-step.

−2(−3x+4)+3x−3=−29

Step 1: Simplify both sides of the equation.

−2(−3x+4)+3x−3=−29

(−2)(−3x)+(−2)(4)+3x+−3=−29(Distribute)

6x+−8+3x+−3=−29

(6x+3x)+(−8+−3)=−29(Combine Like Terms)

9x+−11=−29

9x−11=−29

Step 2: Add 11 to both sides.

9x−11+11=−29+11

9x=−18

Step 3: Divide both sides by 9.

9x /9  =  −18 /9

x=−2

I hope this helps!!!

3 0
3 years ago
Read 2 more answers
A laboratory scale is known to have a standard deviation of Ï = 0.001 gram in repeated weighings. Scale readings in repeated wei
erica [24]

Answer:

the confidence interval for the true weight of the specimen is;

4.1593 ≤ μ ≤ 4.1611

Step-by-step explanation:

We are given;

Standard deviation; σ = 0.001

Sample size; n = 8

Average weight; x¯ = 4.1602

We are given a 99% confidence interval and the z-value at this interval is 2.576

Formula for confidence interval is;

CI = x¯ ± (zσ/√n)

Plugging in the relevant values, we have;

CI = 4.1602 ± (2.576 × 0.001/√8)

CI = 4.1602 ± 0.000911

CI = (4.1602 - 0.000911), (4.1602 + 0.000911)

CI ≈ (4.1593, 4.1611)

Thus, the confidence interval for the true weight will be expressed as;

4.1593 ≤ μ ≤ 4.1611

Where μ represents the true weight

4 0
3 years ago
How many 2/3 cup servings of soup are in 4 cups of soup?
klasskru [66]

Answer:

almost 6 servings

Step-by-step explanation:

2/3=.667

4/.667=5.99

7 0
3 years ago
Read 2 more answers
A bainbridge mass spectrometer is used to separate
Ivan
Ions into a gas mixture according to their mass ratio q/m.
8 0
3 years ago
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