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3 years ago

Describe the steps for dividing these two numbers in scientific notation. (8.42×10^3}÷(5×10^2)

Mathematics

1 answer:

evablogger [386]3 years ago

5 0

Answer: divide —> answer should be 1.684 x 10^3-2 (after dividing) —> your answer should be 1.684 x 10^1

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-6x-7=4x-2. Can you show step by step explanation. thank u.

monitta

Answer:

x=-1/2

Step-by-step explanation:

-6x-7=4x-2

-6x-7+6x=4x+6x-2

-7=10x-2

-7+2=10x-2+2

-5=10x

-5/10=10x/10

x=-1/2

Hope this helps!

8 0

3 years ago

Write the terms a 1a1, a 2a2, a 3a3, and a 4a4 of the following sequence. If the sequence appears to converge, make a conjec

Arturiano [62]

Answer:

Step-by-step explanation:

WE are given that $a_n = \frac{(-1)^{n+1}}{5n-4}$ . Then, to now the first for terms, we must replace n by 1,2,3,4 respectively. Then

$a_1 = \frac{(-1)^2}{5(1)-4} = \frac{1}{1}= 1$

$a_2 = \frac{(-1)^3}{5(2)-4} = \frac{-1}{6}$

$a_3 = \frac{(-1)^4}{5(3)-4} = \frac{1}{11}= 1$

$a_4 = \frac{(-1)^5}{5(4)-4} = \frac{-1}{16}= 1$

Note that as n increase, $a_n$ gets closer to 0. So, the limit of this sequence is 0.

6 0

4 years ago

Darcy harvests 8 3/4 acres of corn every 5/6 of an hour.Darcy harvests corn at a constant rate. How many acres does she harvests

andrey2020 [161]

Answer:

10.50 acres per hour or 1.75 per 10 minutes(1/6 of an hour)

Step-by-step explanation:

5/6 of an hour is 50 minutes

1/6 of an hour is 10 minutes

8 3/4 is equal to 8.75

8.75/5 is equal to 1.75 which means she harvests 1.75 acres per hour

1.75 x 6(hour) is equal to 10.50 acres total in one hour

3 0

3 years ago

Whats the product of (-3x+2y)(4x-y)

oee [108]

Answer:

-12x^2 + 11xy - 2y^2

Step-by-step explanation:

5 0

4 years ago

Read 2 more answers

I need help on my homework

soldi70 [24.7K]

Answer:

$\displaystyle m\angle AED=32.5^\circ$

Step-by-step explanation:

<u>Angles in a Circle</u>

An exterior angle of a circle is an angle whose vertex is outside a circle and the sides of the angle are secants or tangents of the circle.

Segments AE and DE are secants of the given circle. They form an exterior angle called AED.

The measure of an exterior angle is equal to half the difference of the measure of their intercepted arcs.

Intercepted arcs in the given circle are AD=113° and BC=48°. The exterior angle is:

$\displaystyle m\angle AED=\frac{AD-BC}{2}$

$\displaystyle m\angle AED=\frac{113^\circ-48^\circ}{2}=\frac{65^\circ}{2}$

$\displaystyle m\angle AED=32.5^\circ$

8 0

3 years ago