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3 years ago

Solve by factoring 6x^2 +13x -28 =0

Mathematics

2 answers:

Sauron [17]3 years ago

8 0

Answer:

x=4/3 or x=-7/2

Step-by-step explanation:

(3x-4)(2x+7)

Alik [6]3 years ago

4 0

Answer:

x=-7/2, x=4/3

Step-by-step explanation:

$6x^2+13x-28=0$

Multiply 6 and -28 to get -168

Find 2 numbers that multiply to 168 but add to 13

They are 21 & -8

Rewrite the equation into:

$6x^2+21x-8x-28=0$

Factor

$3x(2x+7)-4(2x+7)=0$

(3x-4)(2x+7)=0

3x=4

x=4/3

2x=-7

x=-7/2

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4/5% of 500 rounded to the nearest hundreds

ra1l [238]

Answer:

I am not quite sure what you are asking so i will give you the answer for 4.5% and 45%.

4.5% of 500= The answer i got for this one is 4 so i am assuming you mean 45.

45% of 500= 225 but rounded would be 200

Step-by-step explanation:

3 0

3 years ago

Wgat is 5/6 of an hour and 1/3 of an hour and hiw did you get the final answer

sergeinik [125]

Answer:

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3 years ago

Read 2 more answers

Make a tree diagram and find each probability.

Dafna11 [192]

Answer: a) probability that the game will be canceled= 45%

b) probability there will be a light drizzle and the game will not be canceled=20%

Step-by-step explanation:

Since we have given that

Probability of heavy fog is given by

$P(F)=0.70$

Probability of a light drizzle is given by

$P(D)=0.30$

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$P(C\mid D)=0.80$

Probability of getting canceled a softball game due to heavy fog is given by

$P(C\mid F)=0.30$

a. Find the probability that the game will be canceled.

Probability of getting the game be cancelled is given by

$P(C)=P(F)\times P(C\mid F)+P(D)\times P(C\mid D)\\\\P(C)=0.70\times 0.30+0.30\times 0.80\\\\P(C)=0.45\\\\P(C)=45\%$

b. Find the probability there will be a light drizzle and the game will not be canceled.

Probability that there will be a light drizzle and the game will not be canceled is given by

$P(C'\mid D)=1-P(C\mid D)\\\\P(C'\mid D)=1-0.80\\\\P(C'\mid D)=0.20\\\\P(C'\mid D)=20\%$

Hence, a) probability that the game will be canceled= 45%

b) probability there will be a light drizzle and the game will not be canceled=20%

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3 years ago

Lesson 6.2: applications of linear systems this is holding me back from completing the course. Please help me guys and girls.

nordsb [41]

Answer:

see explanation

Step-by-step explanation:

When x = 5 then x > 3 , thus

f(5) = - 1

When x = 3 then x ≤ 3 , thus

f(3) = - 2x + 2 = - 2(3) + 2 = - 6 + 2 = - 4

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When x = - 4 then - 4 ≤ x ≤ 1 , thus

f(- 4) = 2

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3 years ago

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Sloan [31]

Answer:

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3 years ago