1. SIMPLIFY EACH EXPRESSION:

Mathematics

1 answer:

natka813 [3]3 years ago

8 0

Answer:

1. 8x2 - 7x + 4x3 - 2-3x2 + 9x - 4 = 16+2x

Step-by-step explanation:

1. Multiply all the multiplication problems (should look like this --> 16-7x+12-2-6+9x-4)

2. Calculate the sum or difference (should end up looking like this --> 16-7x+9x) and then into this (16 +2x)

Bringing us to the answer → 16 + 2x!

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-473/144=-5/9x-3 7/8 help

Vlad1618 [11]

Hi,

Work:

$- \frac{473}{144} = - \frac{5}{9}x - 3 \frac{7}{8} \\ - \frac{473}{144} = - \frac{5}{9} x - \frac{21}{8}$

Multiply both sides by 144.

$- 473 - 80x - 378$

Move X to left side and change its side.

$80x = - 378 + 473$

Calculate the sum

$80x = 95$

Divide both sides by 80.

$x = \frac{19}{16}$

+++ Results +++

Fraction form:

$x = 1 \frac{3}{16}$

Or decimal form:

$1.1875$

Hope this helps.
r3t40

7 0

3 years ago

Find the value of x in the triangle shown below. (khan academy :)

EastWind [94]

Answer:

9.49 units

Step-by-step explanation:

x is the hypotenuse of the triangle.

Using Pythagoras Theorem,

The length of x

$= \sqrt{ {9}^{2} + {3}^{2} }$