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algol [13]
3 years ago
7

Use basic identities to simplify the expression

Mathematics
2 answers:
zavuch27 [327]3 years ago
5 0
Sec20. Hope this helps :)
katovenus [111]3 years ago
3 0

Answer:

sec20

Step-by-step explanation:

You might be interested in
Prove that 5x^3+4x-2=0 has exactly one solution
mestny [16]
5x^3+4x-2=0\\\\
(5x^3+4x-2)'=15x^2+4\\\\
15x^2+4=0\\
15x^2=-4\\
x^2=-\dfrac{4}{15}\\
x\in\emptyset 


The derivative of 5x^3+4x-2 is positive for all real numbers, which means the function is increasing in its all domain and therefore there is only one intersection with the x-axis ⇒ one solution.
3 0
4 years ago
(5 points) The population of a state changes due to births, deaths, and immigration. The annual birth rate is 14.3 births per 10
LUCKY_DIMON [66]

Answer:

The population growth rate is of 1.86%.

Step-by-step explanation:

Population growth rate:

Immigration plus births subtracted by emigration and deaths.

In this question, we have that:

Birth: 14.3 per 1000

Death: 11.8 per 1000

Immigrations: 21.6 per 1000

Emigrations: 5.5 per 1000

Rate:

\frac{14.3 + 21.6 - 11.8 - 5.5}{1000} = \frac{18.6}{1000} = 0.0186

As a percentage:

Multiply by 100%. So

0.0186*100% = 1.86%

The population growth rate is of 1.86%.

6 0
3 years ago
Linear equation of 5x-2y=40 and 2y+10x-6=0
Anastasy [175]

Answer:

linear equation for 2y+10x=60 is y=-5x+30 .. the other one is invalid

Step-by-step explanation:

5 0
3 years ago
What is the missing justification?
frozen [14]

Answer:

Option A is correct.

The missing justification is: Transitive property

Step-by-step explanation:

Given:  \angle A \cong \angle B ,   \angle C \cong \angle B

Symmetric property of equality states the if for all real values of x , y

if x =y then, y =x.

Then, by symmetric property of equality:

we can write  \angle C \cong \angle B as

\angle B \cong \angle C

Transitive property of equality states that if we have the two things that are equal to each other and the second thing is equal to a third thing.

i.e, if a =b and b =c

then a =c

By transitive property of equality:

if  \angle A \cong \angle B and \angle B \cong \angle C

then;

\angle A \cong \angle C                      ......[1]

Congruent angle states that the angles have exact the same measure

Therefore, by definition of congruent angles in [1] we have;

m\angle A = m \angle C

4 0
3 years ago
Read 2 more answers
Find the slope please
zavuch27 [327]

Hi student, let me help you out! :)

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

We are asked to find the slope of this graph; we are provided with two points:

\star~\mathrm{(6,0)}

\star~\mathrm{(0,-5)}

\triangle~\fbox{\bf{KEY:}}

  • What we need in order to find the slope are two points and the slope formula.

Here's the formula:

\star~\boxed{\mathrm{\cfrac{y2-y1}{x2-x1}}}

Where

y2 and y1 are y-coordinates

x2 and x1 are x-coordinates

Substitute the values:

\star~\mathrm{\cfrac{-5-0}{0-6}}}

Simplify!

\star~\mathrm{\cfrac{-5}{-6}}}

Simplify more!

\star~\mathrm{\cfrac{5}{6}}

Hope it helps you out! :D

Ask in comments if any queries arise.

#StudyWithBrainly

~Just a smiley person helping fellow students :)

4 0
2 years ago
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