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3 years ago

Expression equivalent?8x2 - 5x + 3x(4 - 2x)

Mathematics

2 answers:

Setler79 [48]3 years ago

6 0

Answer:

x • (2x + 7)

Step-by-step explanation:

2.1 Pull out like factors :

4 - 2x = -2 • (x - 2)

Equation at the end of step 2 :

((8 • (x2)) - 5x) + -6x • (x - 2)

Step 3 :

Equation at the end of step 3 :

(23x2 - 5x) + -6x • (x - 2)

Step 4 :

Step 5 :

Pulling out like terms :

5.1 Pull out like factors :

2x2 + 7x = x • (2x + 7)

aleksklad [387]3 years ago

5 0

Answer:

Step-by-step explanation:

8x² - 5x + 3x(4 - 2x) =8x² - 5x + 3x*4 - 3x*2x

= 8x² - 5x + 12x - 6x²

Now add the like terms

= 8x² - 6x² - 5x + 12x

= 2x² + 7x

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A hemispherical bowl of radius 5 inches is filled to a depth of h inches, where 0less than or equalshless than or equals5. Find

mestny [16]

The shape of the water is that of a "spherical cap." The formula for the volume of a spherical cap is ...

... V = π·h²·(r -h/3) . . . . . . . from web search

For a radius of 5 in, this is

... V = π·h²·(5 -h/3) . . . . in³

_____

For h=0

... V = π·0²·(5 -0/3) = 0

For h=5 in

... V = π·(5 in)²·((5 -5/3) in) = (2/3)π·5³ in³ . . . . . the volume of a hemisphere of radius 5

4 0

2 years ago

Missing fraction<br> blank + 1/16 = 3/2

skad [1K]

Answer: 1/2

Step-by-step explanation:

Let the missing fraction be x

x + 1/16 = 3/2

Make x the subject by subtracting both sides by 1/16

x = 3/2 - 1/16

x= 24 - 16/16

= 8/16; divide through by a common value of 8

x = 1/2

I hope this helps.

4 0

2 years ago

Remember um<br> 1<br> Calculate the midpoint of the segment joining (6.3) and (10, 15).

Sav [38]

(8, 9) will be the midpoint of the segment.
You can find this by applying the formula
(x1 + x2)/2 , (y1 + y2)/2

5 0

2 years ago

Read 2 more answers

Consider two people being randomly selected. (For simplicity, ignore leap years.)

inna [77]

Answer:

$(a) = \frac{144}{133225} \\\\(b) = \frac{1}{365}$

Step-by-step explanation:

Part (a) the probability that two people have a birthday on the 9th of any month.

Neglecting leap year, there are 365 days in a year.

There are 12 possible 9th in months that make a year calendar.

If two people have birthday on 9th; P(1st person) and P(2nd person).

$=\frac{12}{365} X\frac{12}{365} = \frac{144}{133225}$

Part (b) the probability that two people have a birthday on the same day of the same month

P(2 people selected have birthday on the same day of same month) + P(2 people selected not having birthday on same day of same month) = 1

P(2 people selected not having birthday on same day of same month):

$= \frac{365}{365} X \frac{364}{365} =\frac{364}{365}$

P(2 people selected have birthday on the same day of same month) $= 1-\frac{364}{365} \\\\= \frac{1}{365}$

7 0

2 years ago

Is 144 a perfect square or not

Rina8888 [55]

Answer: Yes

Step-by-step explanation: 144 is a perfect square. In other words, it's possible to find a whole number that can be multiplied by itself that gives us 144.

In this case, we multiply 12 by 12 or 12² to get 144 which means 144 is a perfect square. Also, it's on our perfect square list which I will attach below.

6 0

2 years ago

Expression equivalent?8x2 - 5x + 3x(4 - 2x)​

Expression equivalent?8x2 - 5x + 3x(4 - 2x)