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Anestetic [448]
3 years ago
13

Pls help due soon. ​

Mathematics
2 answers:
egoroff_w [7]3 years ago
4 0

Step-by-step explanation:

If you are satisfied with the answer then plz make me genius

alexgriva [62]3 years ago
3 0

Answer:

74

pls give brainliest

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PLEASEE HELP HURRYYYYYY PLEASE
olga2289 [7]

Answer:

12.5

Step-by-step explanation:

We can use ratios to solve

4        4+6

---- = ----------

5         AC

4        10

---- = ----------

5         AC

Using cross products

4 * AC = 5*10

4AC = 50

Divide by 4

AC = 50/4

AC =12.5

5 0
3 years ago
Given T5 = 96 and T8 = 768 of a geometric progression. Find the first term,a and the common ratio,r.
Alona [7]

Answer:

Of the given geometric sequence, the first term a is 6 and its common ratio r is 2.

Step-by-step explanation:

Recall that the direct formula of a geometric sequence is given by:

\displaystyle T_ n = ar^{n-1}

Where <em>T</em>ₙ<em> </em>is the <em>n</em>th term, <em>a</em> is the initial term, and <em>r</em> is the common ratio.

We are given that the fifth term <em>T</em>₅ = 96 and the eighth term <em>T</em>₈ = 768. In other words:

\displaystyle T_5 = a r^{(5) - 1} \text{ and } T_8 = ar^{(8)-1}

Substitute and simplify:

\displaystyle 96 = ar^4 \text{ and } 768 = ar^7

We can rewrite the second equation as:

\displaystyle 768 = (ar^4) \cdot r^3

Substitute:

\displaystyle 768 = (96) r^3

Hence:

\displaystyle r = \sqrt[3]{\frac{768}{96}} = \sqrt[3]{8} = 2

So, the common ratio <em>r</em> is two.

Using the first equation, we can solve for the initial term:

\displaystyle \begin{aligned} 96 &= ar^4 \\ ar^4 &= 96 \\ a(2)^4 &= 96 \\ 16a &= 96 \\ a &= 6 \end{aligned}

In conclusion, of the given geometric sequence, the first term <em>a</em> is 6 and its common ratio <em>r</em> is 2.

7 0
3 years ago
A certain population has 1,000 people in it. Which of the following numbers would be an appropriate number for a random sample?
Mumz [18]
I would think either 10 or 200 would be a good choice for a random sample to take place.
3 0
3 years ago
Read 2 more answers
Https://imgur.com/a/p0QjLGl
inna [77]

Answer: what’s the link about ?

3 0
3 years ago
Read 2 more answers
Complete the solution of the equation. Find the<br> value of y when x equals 10.<br> -7x - 5y = -60
belka [17]

Answer:

y = 2

Step-by-step explanation:

-7x - 5y = -60

plug in 10 where x is

-7(10) - 5y = -60

multiply -7 and 10

-70 - 5y = -60

add 70 to both sides

-5y = 10

divide both sides by -5

y = -2

Hope this helps, if not let me know.

6 0
3 years ago
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