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SpyIntel [72]
4 years ago
10

If 9x+2a=-3a+4x then x equals

Mathematics
1 answer:
Nonamiya [84]4 years ago
8 0
9x+2a=-3a+4x
5x=-5a
x=-a
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If a+b/a−b =c, find the following.
Svetllana [295]

2c

1.5c

Idk thresttggcchgf

5 0
4 years ago
Find mu if mu equals Summation from nothing to nothing [x times Upper P (x )]. ​Then, find sigma if sigma squared equals Summati
Stella [2.4K]

Answer:

mu = x√P(x) - £

£ = x√P(x) - xP(x)

Step-by-step explanation:

We have two equations there. Laying them simultaneously, we can derive the formula for "mu" and sigma. Let sigma be "£"

Equation 1

mu = £[xP(x)]

Equation 2

£^2 = x^2 P(x) - (mu)^2

Since we have sigma raised to power 2 (that is sigma square), we find sigma by square rooting the whole equation.

Hence sigma is equal to

[x√P(x) - mu] ...(3)

Since mu = xP(x), we substitute this into equation (3) to get

Sigma = x√P(x) - xP(x)

mu = x√P(x) - £

8 0
4 years ago
An F5 tornado is classified as having mean wind speeds greater than 261 mph. In an effort to classify a recent tornado, 20 wind
Anna35 [415]

Answer:

Type 2 error

Step-by-step explanation:

H0 : μ = 261

H0 : μ > 261

By failing to reject H0 ; when the it is false. This means accepting null hypothesis when it is actually FALSE. Then a type 2 error has been committed.

This is different from a type 1 error whereby the null hypothesis is rejected when it is actually TRUE.

Hence, by finding no evidence to reject the null hypothesis during statistical testing when the actual windspeed of an F5 tornado during statistical testing is actually greater than 261 mph.

6 0
3 years ago
Can someone help solve for Y
kotykmax [81]
Because angleCBD+angleBDC+angleC=180 so angleCBD+angleBDC=180-angleC=180-82=98 because BC=DC so angleCBD=angleBDC so 2 angleCDB=98 so angleCDB=49 so y=29 by Joy Xu,紫馨雪汐
7 0
3 years ago
If a circle has a diameter of 14 meters what is its area? (Use π=3.14)<br> area =?m2
ki77a [65]
3.14 • 7^2 = 153.9
153.9 m^2
4 0
3 years ago
Read 2 more answers
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