All categories

4 years ago

If f(x) = 5x - 3, what is f(x) when x = 9?

Mathematics

2 answers:

vlada-n [284]4 years ago

4 0

Answer: 42.

Step-by-step explanation:

finlep [7]4 years ago

3 0

Answer:

f(9) = 42

Step-by-step explanation:

All you have to do is replace the variable x with 9. So you have:

5(9)-3= 45-3 = 42

Hope this helped and mark as brainliest!

~ Luna

You might be interested in

EASY BRAINLIEST PLEASE HELP!!

butalik [34]

Answer:

see below

Step-by-step explanation:

<h3>Proposition:</h3>

Let the diagonals AC and BD of the Parallelogram ABCD intercept at E. It is required to prove AE=CE and DE=BE

<h3>Proof:</h3>

1)The lines AD and BC are parallel and AC their transversal therefore,

$\displaystyle \angle DAC = \angle ACB \\ \ \qquad [\text{ alternate angles theorem}]$

2)The lines AB and DC are parallel and BD their transversal therefore,

$\displaystyle \angle BD C= \angle ABD \\ \ \qquad [\text{ alternate angles theorem}]$

3)now in triangle ∆AEB and ∆CED

$\displaystyle \angle EAD=\angle ECB$
$\angle EDA=\angle EBC$
$\displaystyle AD=BC$

therefore,

$\displaystyle \Delta AEB \cong \Delta CED$

hence,

AE=CE
DE=BE

Proven

6 0

3 years ago

In the arithmetic sequence, -12, -17, -22, -27... which term has a value of -68?

RSB [31]

Answer:

-68 is not a term in the given sequence

Step-by-step explanation:

The given sequence is -12, -17, -22, -27...

There is a common difference of d=-17--12=-5

The explicit rule for this sequence is $f(n)=-12-5(n-1)$

Or $f(n)=-5n-7$

To find the term that has a value of -68 we equate the explicit formula and solve for n.

$-68=-5n-7$

$\implies -68+7=-5n$

$\implies -61=-5n$

$n=\frac{61}{5} =12.2$

The position should be a natural number.

Since n is a decimal, it tells us that -68 is not a term in the given sequence

7 0

4 years ago

Can someone plz make a histogram for the numbers 60,60,65,71,72,75,80,88,92,95,100,152

gogolik [260]

Answer:

lol sorry i don't know. but i would try my best to find your answer

4 0

3 years ago

A motorboat takes 40 minutes to travel 20 miles downstream. The return trip takes 60 minutes. What is the speed of the current?

FromTheMoon [43]

Let b be the speed of the boat, and c be the speed of the current. Then:
20/b+c=2/3 hr
20/b-c=1 hr
2/3b+2/3c=20
b-c=20
Then:
b+c=30
b-c=20
2b=50
b=25 mph
c=5 mph
☺☺☺☺

5 0

3 years ago

1) 15.5^2 - 2.4 x (3.1 + 4.7)^2 <br> 2) 66.15 ÷ 10.5^2<br> pls help me both question

Usimov [2.4K]

Answer:

1 )94.234

2)0.6

this is correct answer i calculate it

5 0

2 years ago