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3 years ago

Can someone help me ASAP

Mathematics

1 answer:

Marina86 [1]3 years ago

4 0

Answer:

the y intercept is -4 and the slope is 1

Step-by-step explanation:

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Factor by grouping 2u^3+3u^2-14u-21

mariarad [96]

$\bf 2u^3+3u^2-14u-21\implies (2u^3+3u^2)-(14u+21)
\\\\\\
u^2(2u+3)-7(2u+3)\implies \stackrel{\stackrel{common}{factor}}{(2u+3)}(u^2-7)$

6 0

3 years ago

Read 2 more answers

The vector a and the vector b are shown on the grid.

blondinia [14]

Answer:

could you please add more info to this problem

5 0

2 years ago

if a cylinder has a volume of approximately 125.6 cubic cm and has a height of 10cm what is the length of the radius

Elina [12.6K]

Answer:

radius = 4 cm

Step-by-step explanation:

To find the length of the radius, we will follow the step below;

First, write down the formula for finding the volume of a cylinder

v=πr²h

where v is the volume of a cylinder

r is the radius and

h is the height of the cylinder

from the question given,

v=125.6 and h = 10 cm

we can now proceed to insert the values into the formula and solve for r

note that π is a constant which is equal to 3.14

v=πr²h

125.6 =3.14×r×10

125.6 =31.4 r

Divide both-side of the equation by 31.4

125.6/31.4 =31.4 r/31.4

4 = r

r =4 cm

The length of the radius = 4 cm

4 0

2 years ago

write the slope intercept form of the equation of the line with a slope of -2/5 that passes through 15, -9/2

Sever21 [200]

Answer:

The equation of line in slop-intercept form is y = $\dfrac{-2x}{5}$ + $\dfrac{3}{2}$

Step-by-step explanation:

Given as :

The slope of the a line = m = $\dfrac{-2}{5}$

The line is passes through points $x_1 , y_1$ = 15 , $\dfrac{- 9}{2}$

<u>According to question</u>

Equation of line in slope - intercept form

y - $y_1$ = m × ( x - $x_1$ )

Or, y - ( $\dfrac{- 9}{2}$ ) = $\dfrac{-2}{5}$ × ( x - 15 )

Or, y - ( $\dfrac{- 9}{2}$ ) = $\dfrac{-2}{5}$ × x - ( $\dfrac{-2}{5}$ ) × 15

Or, y - ( $\dfrac{- 9}{2}$ ) = $\dfrac{-2}{5}$ × x + 6

Or, y = $\dfrac{-2}{5}$ × x + 6 - $\dfrac{9}{2}$

Or, y = $\dfrac{-2}{5}$ × x + $\dfrac{12-9}{2}$

Or, y = $\dfrac{-2}{5}$ × x + $\dfrac{3}{2}$

So, The equation of line in slop-intercept form y = $\dfrac{-2}{5}$ × x + $\dfrac{3}{2}$

Hence, The equation of line in slop-intercept form is y = $\dfrac{-2x}{5}$ + $\dfrac{3}{2}$ Answer

6 0

3 years ago

21 22 23 24 25 TIME REMAINING 01:40:27 A hat contains slips of paper with the names of the 26 other students in Eduardo’s class

Pani-rosa [81]

There are 26 - 10 = 16 girls. The number of ways to choose 2 girls from a set of 16 is C(16, 2) = 120. (Your class might be using a different notation for combinations, like $_{16}C_2$ .)

The number of ways to choose 2 people (boys or girls) from a set of 26 is C(26, 2) = 325.

The probability of choosing 2 girls is $\frac{120}{325} = \frac{24}{65}$

Example: how to compute C(16,2):

$C(n, r) = \frac{n!}{r!(n-r)!} \\ C(16, 2) = \frac{16!}{2!(16-2)!} \\ =\frac{16!}{2! \times 14!} \\ =\frac{16\times 15}{2\times 1} \\ =120$

7 0

3 years ago