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3 years ago

PLEASE HELP!

Mathematics

1 answer:

Aleksandr [31]3 years ago

3 0

Answer:8x10^-8

Step-by-step explanation:I am brainlyest

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Which of the following 95% confidence intervals would lead us to reject Hp =0.30 in favor of

lukranit [14]

The correct answer is letter C

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2 years ago

64-144a+108a^2-27a^3

solmaris [256]

the answer for this question is 64-144a+108a^2-27a^3

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3 years ago

If a seed is planted, it has a 85% chance of growing into a healthy plant.

nalin [4]

Answer:

Step-by-step explanation:

prob(grow) = .65

prob(not grow) = .35

prob(1 of 11 will not grow)

= C(11,1)(.35)(.65)^10

= .05183

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3 years ago

Is the binomial a factor of the polynomial nominal function?

Sedbober [7]

The factors for given equation f(x)= $x^{3} +3x^{2} -25x-75$ .

(x-1) - No
(x-3) - No
(x+3) - Yes
(x-5) - Yes
(x+5) - Yes

<u>Step-by-step explanation:</u>

The given equation is f(x)= $x^{3} +3x^{2} -25x-75$ .

Add 0 at the end of the equation.

$x^{3} +3x^{2} -25x-75$ = 0.

Let us group the given equation,

$(x^{3} +3x^{2}) -(25x-75)$ =0.

⇒ Group 1: $x^{3} +3x^{2}$ .

Group 2: $- 25x +75$ .

Pull out factor from each group,

⇒ Group 1: $(x+3)(x^{2})$ .

Group 2: (x+3) (-25).

Join the two group since both (x+3) is common in both groups.

$(x+3)(x^{2} -25)$ =0.

One of the factor is (x+3).

Other factors are solved by the formula, $a^{2}-b^{2} = (a+b) (a-b)$ .

$(x+3)(x^{2} -25)$ = (x+5) (x-5) .

The other factors are (x+5) and (x-5).

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3 years ago

Given Triangle DEF is isosceles and angle D is the vertex angle, Find x, DE, DF, EF

ch4aika [34]

Answer:

x=2;DE,EF=9,DF=5

Step-by-step explanation:

Since DEF is isoceles, you can set the equations

x+7 and 2x+5 equal to each other

x+7=2x+5, now solve for x

-x=-2,

x=2, now plug in for each side

DE,EF=9

DF=3(2)-1=5

4 0

3 years ago