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BARSIC [14]
3 years ago
5

Find all zeros f(x) = 3x^2+8x+7

Mathematics
1 answer:
Artemon [7]3 years ago
4 0

Answer:

Step-by-step explanation:

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Help me it due 30 minutes <br> Estimate each product <br><br> 1/5x22
Alchen [17]

Answer:

I say its 4.4

Step-by-step explanation:

3 0
3 years ago
What is the point-slope form of a line with slope 3 that contains the point (2,1)
ryzh [129]

Answer:

Point slope form:

The equation of line is given by: y-y_1=m(x-x_1)        .....[1]

where m is the slope and a line contains a point (x_1, y_1).

As per the given statement:

Slope(m) = 3

(x_1, y_1). = (2, 1)

Substitute these in [1] we have;

y-1=3(x-2)

therefore, the point slope form of a line with slope 3 that contains the point (2, 1) is; y-1=3(x-2)

5 0
4 years ago
Read 2 more answers
Two faulty machines, M1 and M2, are repeatedly run synchronously in parallel (i.e., both machines execute one run, then both exe
leonid [27]

The event that either M1 or M2 fails has probability

P(M_1\text{ fails or }M_2\text{ fails})=P(M_1\text{ fails})+P(M_2\text{ fails})-P(M_1\text{ and }M_2\text{ both fail})

by the addition rule. Failure events are independent, so

P(M_1\text{ and }M_2\text{ both fail})=P(M_1\text{ fails})P(M_2\text{ fails})

so that

P(M_1\text{ fails or }M_2\text{ fails})=p_1+p_2-p_1p_2

Denote this probability by p. Then X follows a geometric distribution with this parameter p and has density

P(X=x)=\begin{cases}(1-p)^{x-1}p&\text{for }x\ge1\\0&\text{otherwise}\end{cases}

The expectation is \dfrac1p=\dfrac1{p_1+p_2-p_1p_2}.

7 0
4 years ago
How do i factor s^2+9s=-20
Talja [164]
To factor you have to do this: 

s^2 + 9s = -20
      + 20    +20

s^2 + 9s + 20 = 0

now you need to numbers that multiplied give you 20 
and then those same 2 numbers have to add to 9

5 x 4 = 20
5+ 4 = 9

(x + 4) (x+ 5)

that means that x= -4, and -5
8 0
4 years ago
I don't understand what's the answer
gayaneshka [121]
The correct answer is D. 36 x 1/9
When there is a negative exponent on a whole number:
4 ^-2
1/ 4 ^2 = 1b16
6 0
3 years ago
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