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3 years ago

No really getting this please help

Mathematics

2 answers:

Alex73 [517]3 years ago

7 0

Hi,

From simplifying the expression I can see your answer in it's exact form is 35/6. Based off of your multiple choice answers, your answer is 5 5/6.

Hope this helps.

Molodets [167]3 years ago

6 0

The answer is 5 5/6 hope this helps :)

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Help asap please thanks

Arada [10]

A + b
= -10 + 4
= 4 - 10
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3 years ago

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A rectangular bedroom is 4 ft longer than it is wide. Its area is 252 ft2. What is the width of the room?

Ksenya-84 [330]

Answer:

14 ft

Step-by-step explanation:

Given:

Bedroom is 4 ft longer than it is wide.
Area is 252 ft².

Let x = width of the bedroom:

width = x ft
length = (x + 4) ft

Therefore:

$\begin{aligned}\textsf{Area of a rectangle} & = \sf width \times length\\\implies 252 & = x(x+4)\\252 & = x^2+4x\\x^2+4x & = 252\end{aligned}$

To find the value(s) of x, complete the square.

Add the square of half the coefficient of the term in x to both sides:

$\implies x^2+4x+\left(\dfrac{4}{2}\right)^2=252+\left(\dfrac{4}{2}\right)^2$

$\implies x^2+4x+4=256$

<u>Factor</u> the perfect trinomial on the left side:

$\implies (x+2)^2=256$

<u>Square root</u> both sides:

$\implies x+2= \pm \sqrt{256}$

$\implies x+2= \pm 16$

Therefore:

$\implies x=-2+16=14$

$\implies x=-2-16=-18$

As width cannot be negative, the width of the room is 14 ft.

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2 years ago

The probability of a car having to stop at light #1 on Main street is 40%. The probability that a car having to stop at light #2

fredd [130]

720 starting off from the Main Street being 40 percent leading the child to explode into 720 pieces

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3 years ago

Whilst shopping, the probability that Caroline buys fruit is 0.4. The probability that Caroline independently buys a CD is 0.2.

AleksandrR [38]

Answer:

probability that Caroline buy both CD and fruit = 0.52

Step-by-step explanation:

We have given that the probability of Caroline buys a fruit P = 0.4

So probability of Caroline does not buy the fruit = 1 - 0.4 = 0.6

Probability Caroline buys a CD P = 0.2

So probability of Caroline does not buy the CD = 1 - 0.2 = 0.8

So probability that Caroline does not buy either buy CD or fruit = 0.8×0.6=0.48

So probability that Caroline buy both CD and fruit =1-0.48 = 0.52

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3 years ago

Who wants to help I really really need it ❤️

sasho [114]

It would be 8 to the 8th power

5 0

3 years ago

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