3 years ago

Please help will mark brainliest

Mathematics

2 answers:

Nuetrik [128]3 years ago

6 0

Answer:

Step-by-step explanation:

denpristay [2]3 years ago

6 0

C the awnser is c your welcome

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Which quadratic equation is equivalent to (x - 4)2 – ( - 4) - 6 = 0?

zmey [24]

Answer:

$u^2-u-6=0$

where

$u=(x-4)$

Step-by-step explanation:

we have

$(x-4)^2-(x-4)-6=0$

Let

$u=(x-4)$

substitute in the expression above

$(u)^2-(u)-6=0$

Solve for u

Complete the square

$(u^2-u+0.25)=6+0.25$

$(u^2-u+0.25)=6.25$

Rewrite as perfect squares

$(u-0.5)^2=6.25$

square root booth sides

$u-0.5=\pm2.5$

$u=0.5\pm2.5$

$u_1=0.5+2.5=3$

$u_2=0.5-2.5=-2$

Solve for x

Remember that

$u=(x-4)$

For u=3

$3=(x-4)$ ----> $x=7$

For u=-2

$-2=(x-4)$ ----> $x=2$

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3 years ago

What is x-2+=6 because my teacher say that it's not hard and i look hard

aivan3 [116]

Answer:

x=8

Step-by-step explanation:

x-2=6

x=6+2

x=8

7 0

2 years ago

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A furniture company is working on a model of a table that has the scale of 3 in : 2 ft. the length of the model is 6 1/2

Kitty [74]

Answer:

Ross

step by step explanation

Thu Apr to the maximum number of basket she has 30 apples 24 banana of the maximum number of basket

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3 years ago

In a sale the original prices are reduced by 20%.

Anettt [7]

Answer:

17260

Step-by-step explanation:

multiply 14400 by 20%

After that add 14400 and 2880together

and you got the answer

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3 years ago

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Sofia is driving to Texas. She travels at 70 kilometers per hour for 2 hours, and 63 kilometers per hours for 5 hours. Over 7 ho

Vladimir79 [104]

Answer:

65 kph

Step-by-step explanation:

There were a total of 7 hours. So two hours were at 70 and the other 5 hours at 63: the equation would be: (70+70+63+63+63+63+63)/7=65

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3 years ago