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3 years ago

Urgent Math Help Needed ASAP

Mathematics

1 answer:

Marta_Voda [28]3 years ago

7 0

Answer:

Fourth option: 30 days

Step-by-step explanation:

We three path to complete the project:

Path A:

A1 → A2 → A3

10 days → 8 days → 9 days = 27 days

Path B:

B1 → B2 → B3

2 days → 7 days → 3 days = 12 days

Path C:

C1 → C2 → C3

10 days → 8 days → 12 days = 30 days

Then the duration of the critical path is 30 days, we can't conclude the project until each path has finished

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A rectangle has an area of x^2 -6x -7 and a width of x-7 what’s the length

iogann1982 [59]

Answer:

x+1

Step-by-step explanation:

We know that x^2 -6x-7 is the product of two binomials.

We can solve this two ways, but the easier way is to simply factor rather than divide the area by width.

Two numbers, one of which being -7 allows for the sum of -6 and the product of -7.

Using this information, we can identify the other number is 1, so the length is x+1.

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Find the solution to the equations. 2x - y = -3 x y = 0 (0, 0) (-1, 1) (1, -1)

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3 years ago

Given that x = -2 - 3i and y = 4 + 2i , Match The Expressions.

shtirl [24]

Answer:

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Step-by-step explanation:

Given:

$x=-2-3i$

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---

1st problem:

$3y-2x$

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Distribute:

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Combine like terms:

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---

2nd problem:

$-3x \cdot y$

$-3(-2-3i) cdot (4+2i)$

$-3(-2-3i)(4+2i)$

Distribute -3 to first factor:

$(6+9i)(4+2i)$

Use foil to simplify:

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Combine like terms:

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---

3rd problem:

$x \cdot 2y$

$(-2-3i) \cdot 2(4+2i)$

Distribute 2 to the second factor:

$(-2-3i) \cdot (8+4i)$

$(-2-3i)(8+4i)$

Use foil to simplify:

$-16-8i-24i-12i^2$

Replace $i^2$ with -1:

$-16-32i+12$

Combine like terms:

$-4-32i$

----

4th problem:

$(-2-3i)-(4+2i)$

Distribute:

$-2-3i-4-2i$

Combine like terms:

$-2-4-3i-2i$

Simplify:

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Step-by-step explanation:

up 2, to the right 3.

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