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3 years ago

-4c - 1 > 15 Please help me and show your calculations !

Mathematics

1 answer:

padilas [110]3 years ago

6 0

Answer:

c < - 4

Step-by-step explanation:

- 4c - 1 > 15 ( add 1 to both sides )

- 4c > 16

Divide both sides by - 4 , reversing the symbol as a result of dividing by a negative quantity.

c < - 4

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Write an expression equivalent to 5x squared-15x

ExtremeBDS [4]

The answer is 5(x squared-3x)
It is distributive property

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3 years ago

How fast does a driven gear turn if it has 25 teeth (t) and is driven by a10-tooth driver gear (T) at 250 RPM?

vazorg [7]

Given:

The number of teeth = t = 25

The gear is driven by a 10-tooth driver gear (T) at 250 RPM

Let the speed = s

So, using the ratio and proportion

$\frac{25}{s}=\frac{10}{250}$

Solve for s:

$\begin{gathered} 10s=25\cdot250 \\ \\ s=\frac{25\cdot250}{10}=25\cdot25=625 \end{gathered}$

So, the fear will be driven by 625 RP

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1 year ago

What is 1836837292 times 816282?

LiRa [457]

Answer:

The product is 1.4993772e+15.

Step-by-step explanation:

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2 years ago

Read 2 more answers

A certain chalkboard manufacturer determines that their largest blackboard model has a mean length of 5.00 m and a standard devi

Igoryamba

Answer:

23 chalkboards

Step-by-step explanation:

Given:

Mean length = 5 m

Standard deviation = 0.01

Number of units ordered = 1000

Now,

The z factor = $\frac{\textup{x - Mean}}{\textup{standard deviation}}$

The z factor = $\frac{\textup{4.98 - 5}}{\textup{0.01}}$

Z = - 2

Now, the Probability P( length < 4.98 )

Also, From z table the p-value = 0.0228

therefore,

P( length < 4.98 ) = 0.0228

Hence, out of 1000 chalkboard ordered (0.0228 × 1000) = 23 chalkboard are likely to have lengths of under 4.98 m.

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3 years ago

Find the area of a tank which measures 25cm and 10cm

laiz [17]

Answer:

Area = 250

Step-by-step explanation:

25 x 10

Length * Width

5 0

2 years ago