All categories

3 years ago

X2+2x-35 How can you simplify 2+48-21

Mathematics

1 answer:

SSSSS [86.1K]3 years ago

6 0

Answer:

x2-2x-35

Final result :

(x + 5) • (x - 7)

Step by step solution :

Step 1 :

Trying to factor by splitting the middle term

1.1 Factoring x2-2x-35

The first term is, x2 its coefficient is 1 .

The middle term is, -2x its coefficient is -2 .

The last term, "the constant", is -35

Step-1 : Multiply the coefficient of the first term by the constant 1 • -35 = -35

Step-2 : Find two factors of -35 whose sum equals the coefficient of the middle term, which is -2 .

-35 + 1 = -34

-7 + 5 = -2 That's it

Step-by-step explanation: 2+48-21

Final Result :

You might be interested in

A certain chalkboard manufacturer determines that their largest blackboard model has a mean length of 5.00 m and a standard devi

Igoryamba

Answer:

23 chalkboards

Step-by-step explanation:

Given:

Mean length = 5 m

Standard deviation = 0.01

Number of units ordered = 1000

Now,

The z factor = $\frac{\textup{x - Mean}}{\textup{standard deviation}}$

The z factor = $\frac{\textup{4.98 - 5}}{\textup{0.01}}$

Z = - 2

Now, the Probability P( length < 4.98 )

Also, From z table the p-value = 0.0228

therefore,

P( length < 4.98 ) = 0.0228

Hence, out of 1000 chalkboard ordered (0.0228 × 1000) = 23 chalkboard are likely to have lengths of under 4.98 m.

7 0

2 years ago

You consider yourself a bit of an expert at playing rock-paper-scissors and estimate that the probability that you win any given

cestrela7 [59]

Answer:

a) 0.37

b) 0.421

c) 0.25

Step-by-step explanation:

Since the probability of winning a game is binomial (P = 0.5) the expected value for number of winning when you play 60 games is

$\mu = 60*0.5 = 30$

And the standard deviation:

$\sigma = 60*0.5*0.5 = 15$

a) the cumulative probability of winning at least 35 games is

$P(X \geq 35) = 1 - P(X < 35) = 1 - 0.631 = 0.37$

b) $P(X < 27) = 0.421$

c) $P(30 \leq X \leq 40) = P(X \leq 40) - P(X \leq 30) = 0.75 - 0.5 = 0.25$

7 0

3 years ago

Need answer as soon as possible

sergejj [24]

Answer:

I think it would be 65 degrees

Step-by-step explanation:

If the side of Line q and line k is 115 degrees and its the same for line m and line k, then all you have to do is take 180 and subtract 115 from it to get the other side of the angle.

7 0

2 years ago

What times two equals 148

Ratling [72]

That would be 74 because when you divide 148/2=74

3 0

2 years ago

Read 2 more answers

Write these numbers in order of size.<br> Start with the smallest number.<br> 52 102 25 120 55

Anton [14]

The answer is 25 52 55 102 120

8 0

2 years ago

Read 2 more answers