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3 years ago

Please help!!expand (x+4)(x-8)(x-6)

Mathematics

2 answers:

strojnjashka [21]3 years ago

7 0

The answer is x^3-10x^2-8x+192

Crank3 years ago

3 0

x to the power of 2 minus 14x plus 48

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Grover decides to swim downstream to search for new bones. He can swim 30 miles down stream in 3 hours. To return home swimming

nlexa [21]

You need to divide 30 miles by 5 hours,so your average speed is going to be 6 miles an hour

6 0

3 years ago

2. The width of a rectangle is 5 units less than the length. If the area is 150 square units, then find the dimensions of the re

xz_007 [3.2K]

Answer:

The length = x = 15 units

The width = x-5 = 10 units

Step-by-step explanation:

Let 'x' be the length of a rectangle

As the width of a rectangle is 5 units less than the length.

width of rectangle will be = w = x - 5 units

Area = 150 square units

Using the formula

Area = length × width

$150=\left(x\right)\left(x-5\right)$

$150=x^2-5x$

$x^2-5x=150$

Subtract 50 from both sides

$x^2-5x-150=150-150$

$x^2-5x-150=0$

$\left(x+10\right)\left(x-15\right)=0$

$ab=0\:\mathrm{then}\:a=0\:\mathrm{or}\:b=0\:\left(\mathrm{or\:both}\:a=0\:\mathrm{and}\:b=0\right)$

$x+10=0\quad \mathrm{or}\quad \:x-15=0$

$x=-10,\:x=15$

As length can not be negative. so

x = 15 units

Hence,

The length = x = 15 units

The width = x-5 = 15-5 = 10 units

5 0

3 years ago

Please someone help I can’t this

kupik [55]

Answer:

When i took it i chose C and was right. I'm not sure if we use the same school but it was my answer. Hope it helps.

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Select the number of punctuation error. Immediately –1 even before I could stop the water,2 another leak occurred,3 and water gu

ozzi

Answer:

Step-by-step explanation:

Select the number of punctuation error. Immediately even before I could stop the water, another leak occurred, and water gushed onto the, kitchen floor. A. 1 B. 2 C. 3 D. 4

3. There doesn't need to be a comma after 'the'.

The is a determiner or an article. We don't typically put commas after articles.

7 0

3 years ago

Read 2 more answers

Please answer quickly 40 points

Elis [28]

Answer:

2/5 hour is closest to 0 1/2 hours, 5/8 hour is closest to 1/2 hour. Therefore, the best estimate for the total time Maria spent with her sister is close to 1 hour

Step-by-step explanation:

We can represent the time Maria spends playing the game as 0.4, since 2/5 as a fraction is 0.4. This is closer to 1/2, which is 0.5 then it is to 0, because 4 is closer to 5 then 0. Then, we can represent the time Maria reads the book as 0.625, which is closer to 1/2 then it is to 1. Now we can add the estimated times. $1/2+1/2=1$ hour

8 0

2 years ago