All categories

3 years ago

What is the y value of the line when x = -1

Mathematics

1 answer:

sveticcg [70]3 years ago

6 0

I cannot answer that question because I need to equation

You might be interested in

A well-mixed cookie dough will produce cookies with a mean of 66 chocolate chips apiece. What is the probability of getting a co

sp2606 [1]

Answer:

0.7262

Step-by-step explanation:

Let random variable = X

Probability of getting a cookie with at least 55 chips:

P(55≤ X ≤78), where X1 = 55 and X2 = 78

Let mean, U = 66 and standard deviation, S.D. = 10

Let Z = X - U/S.D; Z1 = X1 - U/S.D and Z2 = X2 - U/S.D

Z1 = 55 - 66/10 = - 1.1

Z2 = 78 - 66/10 = 1.2

P(X1≤ X ≤ X2) = P(X1 -U/S.D ≤ X - U/S.D ≤ X2 - U/S.D)

P(Z1 ≤ Z ≤ Z2) = P(0 ≤ Z ≤ Z1) + P(0 ≤ Z ≤ Z2)

Hence, (55 ≤ X ≤ 78) = P( - 1.1 ≤ Z ≤ 1.2)

∴ P(-1.1 ≤ Z ≤ 1.2) = P(0 ≤ Z ≤ 1.1) + (0 ≤ Z ≤ 1.2)

= 0.3413 + 0.3849 = 0.7262

6 0

3 years ago

Last one: which expression is equivalent?

Lady_Fox [76]

It is b 4/3+2/3 is 6/3 and 6/3 divided by 1/3 is 2/3x

5 0

3 years ago

How do I multiply a polynomial by a binomial?

Vinvika [58]

Distributive property.

$a(b+c)=ab+ac$

$(a+b)(c+d)=a(c+d)+b(c+d)=ac+ad+bc+ad$

$(a+b+c)(d+e)=a(d+e)+b(d+e)+c(d+e)=ad+ae+bd+be+cd+ce$

and so on.

5 0

3 years ago

If a 100 m. diameter wind turbine is exposed to 7 m/s wind with an air density of 1.25 kg/m what is the electricity produced by

Yuliya22 [10]

Answer:

electric energy = 980 J

Step-by-step explanation:

Given,

Diameter of wind turbine = 100 m

Speed of wind,v = 7 m/s

Density of air = 1.25 kg/m

Hence, the total mass of air enters into turbine =Speed of wind x Diameter of wind turbine

= 1.25 x 100

= 125 kg

Hence, total mechanical energy of turbine can be given by,

$E\ =\ \dfrac{1}{2}.m.v^2$

$=\ \dfrac{1}{2}\times 125\times 7^2$

= 3062.5 J

Efficiency of turbine = 32%

Hence,

total electric energy = 32% of mechanical energy

$=\dfrac{32}{100}\times 3062.5\ J$

= 980 J

So, the total electric energy produced by the turbine will be 980 J.

6 0

3 years ago

Given the line segment AD. AD=24 BC=12,AB=CD Find AB ?

vodomira [7]

Answer:

I think its 6

Step-by-step explanation:

6 0

3 years ago