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Paladinen [302]
2 years ago
9

Please help with this!!

Mathematics
2 answers:
Alika [10]2 years ago
8 0

Answer:

(4x-6)(4x-6)

Step-by-step explanation:

expand 4x×4x-6×6

Neko [114]2 years ago
5 0
It is b I did that too!!
You might be interested in
A complex electronic system is built with a certain number of backup components in its subsystems. One subsystem has four identi
Tcecarenko [31]

Answer:

a. 0.1536

b. 0.9728

Step-by-step explanation:

The probability that a component fails, P(Y) = 0.2

The number of components in the system = 4

The number of components required for the subsystem to operate = 2

a. By binomial theorem, we have;

The probability that exactly 2 last longer than 1,000 hours, P(Y = 2) is given as follows;

P(Y = 2) = \dbinom{4}{2} × 0.2² × 0.8² = 0.1536

The probability that exactly 2 last longer than 1,000 hours, P(Y = 2) = 0.1536

b. The probability that the system last longer than 1,000 hours, P(O) = The probability that no component fails + The probability that only one component fails + The probability that two component fails leaving two working

Therefore, we have;

P(O) = P(Y = 0) + P(Y = 1) + P(Y = 2)

P(Y = 0) = \dbinom{4}{0} × 0.2⁰ × 0.8⁴ = 0.4096

P(Y = 1) = \dbinom{4}{1} × 0.2¹ × 0.8³ = 0.4096

P(Y = 2) = \dbinom{4}{2} × 0.2² × 0.8² = 0.1536

∴ P(O) = 0.4096 + 0.4096 + 0.1536 = 0.9728

The probability that the subsystem operates longer than 1,000 hours = 0.9728

4 0
2 years ago
Someone help me find the area please
kolezko [41]
Do (10 x 10) then (10 x 20), and then add your two answers together.
Its simple :)
5 0
3 years ago
The diameter of a wheel from a bicycle is 66 CM about how far will the wheel travel in one turn
castortr0y [4]

Answer:

If the outside diameter of the wheel is 66cm, it will travel 1 wheel circumference. Circumference is Pi x diameter = 3.14 x 66 = 207.24 cm.Step-by-step

Explanation:

If the diameter is of the wheel (without the tire) you need to calculate the actual diameter from the outermost edge of the tire.

8 0
2 years ago
Identify the vertex of y = x2 + 4x + 5.
Xelga [282]
ANSWER

The vertex is (-2,1)

EXPLANATION

We want to find the vertex of

y = {x}^{2} + 4x + 5

We complete the square to obtain,

y = {x}^{2} + 4x + {(2})^{2} - {(2})^{2} + 5

The first three terms forms a perfect square trinomial.

y = {(x + 2})^{2} - 4 + 5

The vertex form is

y = {(x + 2})^{2} + 1


This equation is in the form;

y = a{(x -h})^{2} + k


where (h,k)=(-2,1) is the vertex.
4 0
2 years ago
Read 2 more answers
ASAP PLEASE HELP!! “Find the quotient”
elena-14-01-66 [18.8K]

Answer:

The quotient is \frac{x(2x-3)}{7} answer (D)

Step-by-step explanation:

\frac{2x-3}{x} ÷ \frac{7}{x^{2} }

In division with fractions we reverse the fraction after division sign and change division sign to multiplication sine

\frac{2x-3}{x} × \frac{x^{2} }{7}

\frac{2x-3}{1} × \frac{x}{7}

\frac{x(2x-3)}{7}

4 0
3 years ago
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