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Natalka [10]
3 years ago
5

Please help me with the question thankyou ​

Mathematics
1 answer:
Snowcat [4.5K]3 years ago
3 0

Answer:

24x^{10}

Step-by-step explanation:

<u>Key skills needed: Exponent multiplication, Multiplication</u>

1) We have the expression --> (4x^{3})(6x^{7})

2) We have to simplify this (the parentheses mean multiplication)

The easiest thing to do is: Multiply 4 and 6 --> 4 x 6 = 24.

3) With the step above, the expression now would be 24(x^{3})(x^7).

We now have to do x^3 × x^7

For this we have to use this exponent rule --> a^b × a^c = a^{b+c}.

4) This means that x^3 × x^7 = x^{3+7} = x^{10}

5) So the simplified expression would be --> 24x^{10}

<em>Hope you understood and have a nice day!! :D</em>

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The temperature at 6 pm was 0f. At 10 pm the temperature was -11.2f. Write an expression that you can use to find the average ch
Mariana [72]

Answer:

Average change in temperature is - 2.8 Fahrenheit per hour.

Step-by-step explanation:

Average change in temperature is the change in temperature divided by the time taken for the change.

Change in temperature = (-11.2) F- 0 F

                                       = -11.2 F

Time taken for the change in temperature = 10 pm - 6 pm

                                                                       = 4 hours

Average change in temperature = Change in temperature / time taken for the change

                                                      = \frac{-11.2}{4}

                                                      = - 2.8 Fahrenheit per hour

3 0
3 years ago
Find the geometric mean of 6/5 and 120. Show in simplest radical form.
Firdavs [7]
56161613565654941651

6 0
3 years ago
Find the missing value.
denis-greek [22]

Answer:

-7

Step-by-step explanation:

x + 5 = -2

<h2>I hope this helped! :)</h2>
8 0
3 years ago
Which equation could be used to calculate the sum of the geometric series? One-third + two-ninths + StartFraction 4 Over 27 EndF
kondaur [170]

Answer:

S 5 = StartFraction one-third (1 minus (two-thirds) Superscript 5 Baseline) Over (1 minus two-thirds) EndFraction

Step-by-step explanation:

Given the geometric series:

1/3+2/9+4/27+8/81+16/243

First we must know that the series is a finite series with just 5terms.

Before we can know the formula to calculate sum of the first five terms of the series, we must determine its common ratio (r) first.

r = (2/9)÷1/3 = 4/27÷2/9= 8/81÷4/27

r = 2/9 × 3/1

r = 2/3

Similarly;

r = 4/27×9/2

r = 2/3

Since all values of r is the as them the common ratio is 2/3.

If r< 1 in geometric series, then the formula for finding its sum is applicable

Sn = a(1-rⁿ)/1-r

a is the first term = 1/3

r is the common ratio = 2/3

n is the number of terms = 5

Substituting the values in the formula we have:

S5 = 1/3{1-(2/3)^5}/1-2/3

This gives the requires equation

S 5 = StartFraction one-third (1 minus (two-thirds) Superscript 5 Baseline) Over (1 minus two-thirds) EndFraction

4 0
3 years ago
Read 2 more answers
❤️❤️__pvx-biov-wdv___❤️❤️truth an dare❤️can any girl from Australia join and play with me?​
Sveta_85 [38]

Step-by-step explanation:

not possible, but thanks for the points..!

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