3 years ago

Evaluate a2 - 6 for a = 4 and b = 17

Mathematics

1 answer:

Natalija [7]3 years ago

7 0

Answer:

The answer is -94 but where is b

Step-by-step explanation:

2(4)-6(17)=-94

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What is the solution of the linear equation? 4b+6=2-b+4

masya89 [10]

4b+b=2+4-6
5b=0
b=0/5
b=0

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3 years ago

A cable company charges $32.50 a month for basic cable TV. Each premium channel selected costs an additional $4.95 per month. Wr

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The equation is charge = $4.95x + $32.50

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3 years ago

Find the volume of the sphere with 1 inch radius. Round your answer to the nearest tenth. Use 3.14 for Pi.

Ad libitum [116K]

Answer:

4.16 in^3

Step-by-step explanation:

Given data

Volume of sphere= 4/3πr^3

Radius= 1 inch radius

Substitute

Volume of sphere= 4/3*3.14*1^3

Volume of sphere= 4/3*3.14*1

Volume of sphere= 4*1.04

Volume of sphere= 4.16 in^3

7 0

3 years ago

7. A recent medical survey reported that 45% of the respondents felt that the doctor explained their condition in a sufficient m

tester [92]

Answer:

(a) 0.8655

(b)0.8655

Step-by-step explanation:

X is the number of respodents who agree

P(x ≥4), n=12, p=0.45

P(x ≥4)=1-P(x<4)

P(x<4)=P(0 ≤x<4)= P(0 ≤x≤3)=P(x=0,1,2,3)=P(x=0)+P(x=1)+P(x=2)+P(x=3)

$P(x=0)=12C0(0.45)^{0}(1-0.45)^{12-0}\approx 0.0007662$

$P(x=1)=12C1(0.45)^{1}(1-0.45)^{12-1}\approx 0.007523$

$P(x=2)=12C2(0.45)^{2}(1-0.45)^{12-2}\approx 0.033853$

$P(x=3)=12C3(0.45)^{0}(1-0.45)^{12-3}\approx 0.092326$

$P(x$

P(x ≥4)=1-P(x<4)=1-0.134468=0.8655319

(b)

Y represent those who agree

P(Y≤8), n=12, p=0.45

P(Y≤8)=1-P(Y>8)

P(Y>8)=P(8<Y≤12)=P(9≤Y≤12)=P(Y=9,10,11,12)

$P(Y=9)= 12C9(0.45)^{9}(1-0.45)^{12-9}\approx 0.092326$

$P(Y=10)= 12C10(0.45)^{10}(1-0.45)^{12-10}\approx 0.033853$

$P(Y=11)= 12C11(0.45)^{11}(1-0.45)^{12-11}\approx 0.007523$

$P(Y=12)= 12C12(0.45)^{12}(1-0.45)^{12-12}\approx 0.0007662$

Total =0.134468

P=1-0.134468=0.8655319

6 0

3 years ago

Answer choices :<br> a. 113 in. <br> b. 340 in.<br> c. 250 in.<br> d. 226 in.

Tju [1.3M]

Answer:c I believe

Step-by-step explanation:

8 0

3 years ago

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