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2 years ago

1.) Are the two expressions

Mathematics

2 answers:

Gnom [1K]2 years ago

8 0

Answer:

yes

Step-by-step explanation:

if you distribute the 9 into the parenthesis you get 9y + 45. Therefore, both equations are equivalent seeing that they both equal to 9y + 45.

Ainat [17]2 years ago

3 0

Answer:

Yes

Step-by-step explanation:

If you use the distribution property, then you can write it out like 9 x y + 9 x 5. That is the same as 9y+45.

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Figure out the slope of the line that passed through each pair of points (4,-11) and (7,-8)

wlad13 [49]

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$slope = \frac{ - 8 - ( - 11)}{7 - 4} \\$

$slope = \frac{ - 8 + 11}{7 - 4} \\$

$slope = \frac{3}{3} \\$

$slope = 1$

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3 years ago

Match each set of vertices with the type of quadrilateral they form.

Serjik [45]

Only correct the first one.

Please, see the graph in the attached file.

1) a rectangle with    A(3,3), B(3,6),
noncongruent ←→ C(7,6), D(7,3)
adjacent sides
(in green)

2) a parallelogram
with A(2,0), B(3,2)
nonperpendicular ←→ C(6,3), D(5,1)
adjacent sides
(in blue)

3) a square ←→ A(3,3), B(2,5),
(in red) C(4,6), D(5,4)

4) a rhombus with       A(2,-2), B(3,0),
nonperpendicular    ←→ C(4,-2), D(3,-4)
adjacent sides
(in black)

5 0

3 years ago

(8y²)(-3x²y²)(2/3xy⁴)<br><br> HELP PLEASEEEEEEEE

IRINA_888 [86]

Step-by-step explanation:

1 Remove parentheses.

8{y}^{2}\times -3{x}^{2}{y}^{2}\times \frac{2}{3}x{y}^{4}

×−3x

2 Use this rule: \frac{a}{b} \times \frac{c}{d}=\frac{ac}{bd}

\frac{8{y}^{2}\times -3{x}^{2}{y}^{2}\times 2x{y}^{4}}{3}

×−3x

×2xy

3 Take out the constants.

\frac{(8\times -3\times 2){y}^{2}{y}^{2}{y}^{4}{x}^{2}x}{3}

(8×−3×2)y

4 Simplify 8\times -38×−3 to -24−24.

\frac{(-24\times 2){y}^{2}{y}^{2}{y}^{4}{x}^{2}x}{3}

(−24×2)y

5 Simplify -24\times 2−24×2 to -48−48.

\frac{-48{y}^{2}{y}^{2}{y}^{4}{x}^{2}x}{3}

−48y

6 Use Product Rule: {x}^{a}{x}^{b}={x}^{a+b}x

a+b

\frac{-48{y}^{2+2+4}{x}^{2+1}}{3}

−48y

2+2+4

2+1

7 Simplify 2+22+2 to 44.

\frac{-48{y}^{4+4}{x}^{2+1}}{3}

−48y

4+4

2+1

8 Simplify 4+44+4 to 88.

\frac{-48{y}^{8}{x}^{2+1}}{3}

−48y

2+1

9 Simplify 2+12+1 to 33.

\frac{-48{y}^{8}{x}^{3}}{3}

−48y

10 Move the negative sign to the left.

-\frac{48{y}^{8}{x}^{3}}{3}

−

48y

11 Simplify \frac{48{y}^{8}{x}^{3}}{3}

48y

to 16{y}^{8}{x}^{3}16y

-16{y}^{8}{x}^{3}

−16y

Done

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2 years ago

A set of sweater prices are normally distributed with a mean of 58 dollars and a standard deviation of 5 dollars. What proportio

Airida [17]

Answer: 0.6267

Step-by-step explanation:

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3 years ago

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Molodets [167]

Answer:

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Step-by-step explanation:

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3 years ago