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3 years ago

Which number line represents the solution set for the inequality ? HELP PLEASE

Mathematics

1 answer:

irga5000 [103]3 years ago

7 0

Step-by-step explanation:

if you need any explanation you can ask

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Can you help me out!

vfiekz [6]

Answer:

Step-by-step explanation:

Cube root of 27/cube root of 125

=3/5

4 0

4 years ago

Read 2 more answers

5 and 2/3 + 4 and 3/5

Pepsi [2]

the answer is 10.266666 in decimal form

7 0

3 years ago

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. A 25-ft ladder is leaning against a wall. If we push the ladder toward the wall at a rate of 1 ft/sec, and the bottom of the l

Vlada [557]

Answer:

0.75 feet per second.

Step-by-step explanation:

Please find the attachment.

We have been given that a 25-ft ladder is leaning against a wall. We can see from the attachment that ladder forms a right triangle with respect to wall and ground.

So we can set a Pythagoras theorem as:

$x^2+y^2=25^2$

$x^2+y^2=625$

Now, we need to find the derivative of above equation with respect to time.

$2x\cdot \frac{dx}{dt}+2y\cdot \frac{dy}{dt}=0$

Since the adder is moving toward the wall at a rate of 1 ft/sec for 5 sec, so x after 5 seconds would be: $20-1(5)=20-5=15$

Let us solve for y using Pythagoras theorem.

$y^2+15^2=25^2$

$y^2+225=625$

$y^2=625-225$

$y^2=400$

Take positive square root:

$\sqrt{y^2}=\sqrt{400}$

$y=20$

Upon substituting our given values in derivative equation, we will get:

$2x\cdot \frac{dx}{dt}+2y\cdot \frac{dy}{dt}=0$

$2(15)\cdot(-1)+2(20)\cdot \frac{dy}{dt}=0$

$-30+40\cdot \frac{dy}{dt}=0$

$40\cdot \frac{dy}{dt}=30$

$\frac{dy}{dt}=\frac{30}{40}$

$\frac{dy}{dt}=0.75$

Therefore, the ladder is moving up at a rate of 0.75 feet per second.

3 0

3 years ago

What is 7-y=5x+11 in standard form?

liubo4ka [24]

Answer:-5x+y=4

Step-by-step explanation:put it into y=mx+b then put into standard

4 0

3 years ago

1.A company charges an extra 5% for customers using their credit card. Sally buys a dress for £24. If Sally uses her credit card

neonofarm [45]

Answer:

£25.20

Step-by-step explanation:

Find 1% of 24

24÷100= 0.24

Find 5% of 24

0.24×5=£1.20

Add 5% to £24

£1.20+£24= £25.20

3 0

4 years ago

Read 2 more answers