2 years ago

Solve the inequality

Mathematics

1 answer:

Nezavi [6.7K]2 years ago

5 0

I’m pretty sure it’s x>5 when add 4 to the other side and get 5 i’m just not sure about the sign

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Carpect costs $16 a square foot. A rectangular floor is 16 feet long by 14 feet wide. How much would it cost to carpet the floor

DerKrebs [107]

Answer:

$3584

Step-by-step explanation:

- because its a rectangle, the area of the floor is length*width, so 16*14 = 224 square feet

- one square foot is $16, so 224 sqaure feet are 224*16

= 3584

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2 years ago

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The following statement is either true (in all cases) or false (for at least one example). If false, construct a specific e

matrenka [14]

Answer:

False, counterexample below

Step-by-step explanation:

Denote the unit vectors of R^3 by $e_1=(1,0,0), e_2=(0,1,0), e_3=(0,0,1)$ . Now consider $v_1=e_1, v_2=2e_1$ and $v_3=e_3$ . We have that $v_1, v_2,v_3 \in \mathbb{R}^3$ . Also, the vector $v_3$ is not a linear combination of $v_1, v_2$ because any linear combination of these two vectors will have third coordinate zero, but v_3 has third coordinate 1 so they can't be equal.

However, the set $\{v_1, v_2,v_3\}$ is not linearly independent, because $2v_1-v_2+0v_3=0$ is a non-trivial linear combination of these vectors that equals zero.

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3 years ago

Courtney works for the Red Cross and has been tasked with buying non-perishable items for families recently displaced by a hurri

beks73 [17]

9514 1404 393

Answer:

x + y = 20
20x +30y = 450

Step-by-step explanation:

The equation for the total number of cases is ...

x + y = 20

The equation for the total cost of the cases is ...

20x +30y = 450

_____

<em>Additional comment</em>

The solution to these equations is (x, y) = (15, 5).

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What percent is 29.5 is 10.03

Slav-nsk [51]

The percentage of 29.5 of 10.03 is 2.95885%

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3 years ago

Can some smart person help me out here!!!

vitfil [10]

Answer:

the answer is C I'm studying this right now

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2 years ago