3 years ago

Please help :) Please and thank you :D

Mathematics

1 answer:

Olin [163]3 years ago

4 0

Answer I think the first one

Step-by-step explanation:Hope this helps

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5.) Evaluate the function. f(x)=8x+9 for f(5). Show your work and write your

irina1246 [14]

Answer:

Step-by-step explanation:

f(5)=8×5+9=40+9=49

7 0

3 years ago

Find the 7th term of the geometric sequence whose common ratio is 1/3 and whose first term is 5.

wolverine [178]

Answer:

$t_7 =\frac{5}{729}$

Step-by-step explanation:

We are given that:

First term (a) = 5

common ratio (r) = $\frac{1}{3}$

The nth term of a geometric sequence is given as:

$t_n =ar^{n-1} \\\therefore t_7 =5\times \bigg(\frac{1}{3}\bigg) ^{7-1} \\\therefore t_7 =5\times \bigg(\frac{1}{3}\bigg) ^{6} \\\therefore t_7 =5\times \bigg(\frac{1}{3}\bigg) ^{6} \\\therefore t_7 =5\times \frac{1}{729}\\\\\huge\red{\boxed{\therefore t_7 =\frac{5}{729} }}$

8 0

3 years ago

Solve<br> 3(2x - 5) = 9(10 - x)

alisha [4.7K]

Answer:

x=7

Step-by-step explanation:

3(2x - 5) = 9(10 - x)

6x-15=90-9x

6x+9x=90+15

15x=105

x=7

4 0

3 years ago

Read 2 more answers

What is 73×28 in multiply with regrouping

klio [65]

First, u multiply 8x3. Only the 4 can go in the ones place so put the four beneath the line and put the 2 over the 7.
Multiply 8x7 and add 2.
Move to the tens place, do 2x3 then 2x7.
Add the products and put the comma. Then ur done

4 0

2 years ago

Question 2

BabaBlast [244]

The correct answer is choice d because you would divide x by 2 to get 70. then you do the same with y so 35/2 = 17.5

7 0

2 years ago