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3 years ago

X +5 divided 4x^2+14x-9

Mathematics

1 answer:

masya89 [10]3 years ago

7 0

Answer:

x =(14-√340)/8=(7-√ 85 )/4= -0.555

x =(14+√340)/8=(7+√ 85 )/4= 4.055

Step-by-step explanation:

step 1 :

(22x2 - 14x) - 9 = 0

Step 2 :2.1 Factoring 4x2-14x-9

The first term is, 4x2 its coefficient is 4 .

The middle term is, -14x its coefficient is -14 .

The last term, "the constant", is -9

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-3^2 - 1^2 -(-2)^3+(-1)^2-(-1-5)^3

Ilia_Sergeevich [38]

Answer: 215

Step-by-step explanation:

4 0

4 years ago

7994 399,780 10,051 35 35,094,013 write the above in standard form

Virty [35]

Answer:

7.994×10^3

3.99780×10^5

1.0051×10^4

3.5×10^1

3.5094013×10^7

8 0

3 years ago

Read 2 more answers

Solve each system by substitution 5x + 7y = -23 Y = -2x - 11

Alenkasestr [34]

Answer:

x = −6

Explanation:

5x + 7y = -23

Y = -2x - 11

Substitute -2x - 11 for y in 5x + 7y = -23

5x + 7(−2x − 11) = −23

Simplify both sides of the equation

5x + 7(−2x − 11) = −23

5x + (7)(−2x ) + (7)(−11) = −23 (Distribute)

5x + −14x + −77 = −23

(5x + −14x) + (−77) = −23 (Combine Like Terms)

−9x + −77 = −23

−9x − 77 = −23

Add 77 to both sides

−9x − 77 + 77 = −23 + 77

−9x = 54

Divide both sides by -9

−9x / -9 = 54 / -9

x = -6

6 0

3 years ago

Select the correct answer. robin randomly selects a number between 1 and 20. what is the probability that the number selected is

Vlada [557]

The probability that the number selected is the square of a natural number will be $\frac{1}{5}$ .

<h3 /><h3>What is probability?</h3>

Probability means possibility. It deals with the occurrence of a random event. The value of probability can only be from 0 to 1.

Its basic meaning is something is likely to happen. It is the ratio of the favorable event to the total number of events.

P is the probability

F(E) is the favorable event

T(E)is the total event

The probability is found as;

$\rm P = \frac{F(E)}{T(E)} \\\\ \rm P = \frac{4}{20)} \\\\ \rm P = \frac{1}{5}$

Hence the probability that the number selected is the square of a natural number will be $\frac{1}{5}$ .

To learn more about the probability link is given below.

brainly.com/question/795909

8 0

2 years ago

There are 12 inches in 1 foot. Jada is working on improving her vertical jump. She records,

guajiro [1.7K]

Answer:

There are 72 inches in 6 feet.

Step-by-step explanation:

Given:

There are 12 inches in 1 foot.

Jada is working on improving her vertical jump.

Currently, her standing reach is 6 feet from the ground.

Now, to find the inches in 6 feet.

Let the inches in 6 feet be $x.$

As given:

In 1 foot there are 12 inches.

So, 1 foot is equivalent to 12 inches.

Thus, 6 feet is equivalent to $x$

Now, to find using cross multiplication method:

$\frac{1}{12} =\frac{6}{x}$

By cross multiplying we get:

$x=72$

So, the inches in 6 feet = 72.

Therefore, there are 72 inches in 6 feet.

3 0

4 years ago