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2 years ago

Help pls I dont know

Mathematics

2 answers:

liubo4ka [24]2 years ago

5 0

14 and -18 would be less than or equal too when the -y makes them -14 and 18 it is still less than 19

Lelu [443]2 years ago

4 0

Answer:

All of them are correct!

i hope this is correct! c:

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What is the value for X, Y, and Z?

Oduvanchick [21]

Answer:

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z is 48

x is 48

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3 years ago

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Jason decided that he will sell his stocks if their value per share (x) goes below $5 or above $15. Which compound inequality re

Veronika [31]

Answer:

B. x < $5 or x > $15

Step-by-step explanation:

The "or" in the problem statement gives you a clue that answer choices C and D can be rejected.

If x is the stock value, then value per share "below $5" means x < $5. This corresponds with answer choice B. Of course, "above $15" means x > $15, also corresponding to answer choice B.

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2 years ago

Give the equation of the line with a slope of -7/2<br> and a y-intercept of - 6

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Answer:

$y = \frac{ - 7}{2} - 6$

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3 years ago

If a tank holds 5000 gallons of water, which drains from the bottom of the tank in 40 minutes, then Torricelli's Law gives the v

pochemuha

Answer:

V'(t) = $-250(1 - \frac{1}{40}t)$

If we know the time, we can plug in the value for "t" in the above derivative and find how much water drained for the given point of t.

Step-by-step explanation:

Given:

V = $5000(1 - \frac{1}{40}t )^2$ , where 0≤t≤40.

Here we have to find the derivative with respect to "t"

We have to use the chain rule to find the derivative.

V'(t) = $2(5000)(1 - \frac{1}{40} t)d/dt (1 - \frac{1}{40}t )$

V'(t) = $2(5000)(1 - \frac{1}{40} t)(-\frac{1}{40} )$

When we simplify the above, we get

V'(t) = $-250(1 - \frac{1}{40}t)$

If we know the time, we can plug in the value for "t" and find how much water drained for the given point of t.

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3 years ago

Determine whether the statement is sometimes, always, or never true. If ax+b-4=b and doesn’t equal 0 then x=4/a?

attashe74 [19]

Start with expression $ax+b-4=b.$

1. Separate terms - with x leave in left side, without x write in right side:

$ax=b-b+4,\\ \\ax=4.$

2. Divide the last expression by a ( $a\neq 0$ ):

$x=\dfrac{4}{a}.$

Answer: this statement is true when $a\neq 0$ .

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2 years ago

Help pls I dont know​

Help pls I dont know