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Inga [223]
3 years ago
8

Please explain :) 2x + 12

smiddle" class="latex-formula"> 6
Mathematics
2 answers:
Semmy [17]3 years ago
8 0
2x+12 \geq 6 \ \ \ |\hbox{subtract 12 from both sides} \\
2x \geq -6 \ \ \ |\hbox{divide both sides by 2} \\
x \geq -3
oksian1 [2.3K]3 years ago
7 0
2x+12\geq6\\
2x\geq-6\\
x\geq-3
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A car travels 1,295 feet in 5 seconds. At that speed, how far can this car travel in 50 seconds? *
Firdavs [7]

Answer:

12950 feet or about 2.45 miles

5 0
3 years ago
What is the 4th term in the binomial expansion of (a+b)^6)?
Sergeeva-Olga [200]

Answer:

option A) that is 20a^3 b^3

Step-by-step explanation:

Given in the question the equation,

(a+b)^6

Formula for binomial expansion up to 4th term of  (a+b)^6)

    1st term             2nd term          3rd term             4th term

6C0 (a)^6(b)^0 + 6C1 (a)^5(b)^1 + 6C2 (a)^4(b)^2 + 6C3 (a)^3(b)^3 + ....

Hence, the 4th term in the binomial expansion of  (a+b)^6 = 6C3 (a)^3(b)^3

                                                                                                 = 20 (a)^3(b)^3

8 0
4 years ago
The weight of apples is normally distributed. Large apples have a mean of 15 oz and medium apples have a mean of 10 oz. The stan
Leno4ka [110]

Answer:

a) X has a mean of 25 and a variance of 8.

b) The probability that the total weight X is between 22 and 28 oz is 0.711.

Step-by-step explanation:

We have to calculate the mean and variance of a sum of random normal variables.

We can apply the rule for mean and variance for sum of independent variables:

X=L+M\\\\E(X)=E(L+M)=E(L)+E(M)\\\\V(X)=V(L+M)=V(L)+V(M)-2CoV(L,M)=V(L)+V(M)

Then, the mean and variance of X is:

E(X)=E(L)+E(M)=15+10=25\\\\\\V(X)=V(L)+V(M)=2^2+2^2=4+4=8\\\\\sigma_x=\sqrt{V(X)}=\sqrt{8}\approx2.83

We can calculate the probability that X is between 22 and 28 as:

z_1=\dfrac{X_1-\mu}{\sigma}=\dfrac{22-25}{2.83}=\dfrac{-3}{2.83}=-1.06\\\\\\z_2=\dfrac{X_2-\mu}{\sigma}=\dfrac{28-25}{2.83}=\dfrac{3}{2.83}=1.06\\\\\\P(22

4 0
3 years ago
Write the multiple of 5 starting from 100
ruslelena [56]
100, 105, 110, 115, 120, 125, 130, 135, 140, 145, 150,...
3 0
3 years ago
Read 2 more answers
I WILL GIVE BRAINLIEST
masha68 [24]

Answer:

Part A = 64 feet

Part B = 79 feet

Step-by-step explanation:

Part A

10 × 2 = 20 = Diameter

Formula is C = π × diameter

20 × π = 62.8318530718 feet = 64 feet

Part B

25 × 2 = 50

Same formula

50 × π = 157.079632679 feet

157.079632679 ÷ 2 = 78.5398163395 feet = 79 feet

divide by 2 because it is a semi circle

Hope his helped :)

8 0
3 years ago
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