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3 years ago

5x+4=-10x+19 Plis solo contesten los que saben

Mathematics

1 answer:

Readme [11.4K]3 years ago

8 0

Answer:

X = 3

Step-by-step explanation:

$5x+4=-10x+19 \\ 4 - 19 = - 10x - 5x \\ - 15 = - 5x \\ - 5x = - 15 \\ x = \frac{ - 15}{ - 5} \\ x = 3$

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Solve the inequality.

svetlana [45]

Answer:

Step-by-step explanation:

n ≥ -2 + 9

n ≥ 7

3 0

3 years ago

Read 2 more answers

FACTORED POLYNOMIAL ONLY

Leto [7]

Answer: $5x^{3}$ ( $x^{3}$ +2x+3)

3 0

4 years ago

Plan: “MI AUTO PARA TAXI”

Anastaziya [24]

Answer:

Plan II is more favorable because the total amount to pay is less and the time to pay is greater than Plan I.

Step-by-step explanation:

The question in English is

Plan: "MY AUTO FOR TAXI"

Mr. Alberto decides to buy a car in order to perform taxi services. The price of the vehicle is S/45 000, but only S/20 000 is available. He then decides to finance the missing money through a bank. If between the two loan plans offered, you must choose one:

Which of the two options would you recommend to Mr. Alberto?

we know that

The compound interest formula is equal to

$A=P(1+\frac{r}{n})^{nt}$

where

A is the total amount due

P is the amount owed

r is the rate of interest in decimal

t is Number of Time Periods

n is the number of times interest is compounded per year

in this problem we have

Plan I

$t=2\ years\\ P=\$45,000-\$20,000=\$25,000\\ r=0.05\\n=1$

substitute in the formula

$A=25,000(1+\frac{0.05}{1})^{1*2}$

$A=25,000(1.05)^{2}$

$A=\$27,562.50$

Plan II

$t=3\ years\\P=\$45,000-\$20,000=\$25,000\\ r=0.03\\n=1$

$A=25,000(1+\frac{0.03}{1})^{1*3}$

$A=25,000(1.03)^{3}$

$A=\$27,318.18$

Compare

Plan I ----> t=2 years A=$27,562.50

Plan II----> t=3 years A=$27,318.18

therefore

Plan II is more favorable because the total amount to pay is less and the time to pay is greater than Plan I.

6 0

3 years ago

Based on the graph shown, what is the rate of change?

Margaret [11]

Answer:

A) 60 miles/hour

Step-by-step explanation:

7 0

3 years ago

What are the exact values of sin(2π3radians) and cos(2π3radians)

topjm [15]

We know that
2π/3 radians-------> convert to degrees-----> 2*180/3---> 120°
120°=90°+30°

Part a) Find sin(2π/3)
sin(2π/3)=sin (90°+30°)
we know that
sin (A+B)=sin A*cos B+cos A*sin B
so
sin (90°+30°)=sin 90*cos 30+cos 90*sin 30
sin 90=1
cos 30=√3/2
cos 90=0
sin 30=1/2
sin (90°+30°)=1*√3/2+0*1/2-----> √3/2

the answer part a) is
sin(2π/3)=√3/2

Part b) Find cos (2π/3)
cos (2π/3)=cos (90°+30°)
we know that
cos (A+B)=cos A*cos B-sin A*sin B
so
cos (90°+30°)=cos 90*cos 30-sin 90*sin 30
sin 90=1
cos 30=√3/2
cos 90=0
sin 30=1/2
cos (90°+30°)=0*√3/2-1*1/2----> -1/2

the answer part b) is
cos (2π/3)=-1/2

4 0

3 years ago