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3 years ago

Help me nowwwwwwwwww

Mathematics

2 answers:

STatiana [176]3 years ago

8 0

Answer:

In its simplest form it would be -4/9

lara31 [8.8K]3 years ago

5 0

Answer:

-4/9 or -0.444...

Step-by-step explanation:

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Elevator 1 in a building moved from ground position to a final position of +16 feet. Elevator 2 in the same building moved from

lilavasa [31]

928282827282828382082820ks

8 0

3 years ago

A river flows due south at 4 mi/h. A swimmer attempting to cross the river heads due east swimming at 2 mi/h relative to the wat

Inessa05 [86]

Answer:

$\overrightarrow{V_{S,G}}=2\widehat{i}-4\widehat{j} mi/h$

Step-by-step explanation:

velocity of river with respect to ground = 4 mi/h south

$\overrightarrow{V_{R,G}}=4(\widehat{-j})$

Velocity of swimmer with respect to river = 2 mi/h east

$\overrightarrow{V_{S,R}}=2(\widehat{i})$

According to the formula of relative velocity

$\overrightarrow{V_{S,R}}=\overrightarrow{V_{S,G}}-\overrightarrow{V_{R,G}}$

$2\widehat{i}=\overrightarrow{V_{S,G}}+4\widehat{j}$

Where, V(S,G) be the velocity of swimmer with respect to ground, it is true velocity of swimmer.

$\overrightarrow{V_{S,G}}=2\widehat{i}-4\widehat{j} mi/h$

5 0

4 years ago

Find one length of the square (7x-3) 3(x+1)

Svetllana [295]

Area of a square = Side × Side

Side = 7x-3

Area of the square = (7x-3) × (7x-3)

= 7x(7x-3) -3(7x-3)

= 49x^2 -21x -21x +9

=49x^2 -42x +9

6 0

3 years ago

Please can someone help me with this question?

zhannawk [14.2K]

Answer:

a = 16 π cm² Exact answer

a = 50.24 cm² Decimal approximation

Step-by-step explanation:

Radius of the circle

16/2 = 8

Area of the circle

a = πr²

a = π4²

a = 16 π cm² Exact answer

a = 16 * 3.14

a = 50.24 cm² Decimal approximation

7 0

3 years ago

How do I solve this?

Norma-Jean [14]

Answer:

Step-by-step explanation:

Base = 25 ft

height = 8 ft

Area of triangle = $\frac{1}{2}*base * height\\\\$

$= \frac{1}{2}*25 *8\\\\= 25 * 4\\\\= 100 ft^{2}$

7 0

3 years ago

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