2 years ago

I need number 4 pls help

Mathematics

1 answer:

Inga [223]2 years ago

3 0

7181891911818828282992

You might be interested in

Evaluate 10 + 4(3 + 2) + 5 + (12 ÷ 6).

wolverine [178]

10 + 4*3 + 4*2 + 5 + 2 =

10 + 12 + 8 +7 = 

22 + 8 +7 = 

30 + 7 =37

7 0

2 years ago

Read 2 more answers

Define a function f on a set of real numbers as follows: f(x) = 3x − 1 x , for each real number x ≠ 0 Prove that f is one-to-one

dalvyx [7]

Answer with Step-by-step explanation:

We are given that

$f(x)=\frac{3x-1}{x}$

For each real number $x\neq 0$

To prove that f is one -to-one.

Proof:Let $x_1$ and $x_2$ be any nonzero real numbers such that

$f(x_1)=f(x_2)$

By using the definition of f to rewrite the left hand side of this equation

$f(x_1)=\frac{3x_1-1}{x_1}$

Then, by using the definition of f to rewrite the right hand side of this equation of $f(x_1)=f(x_2)$

$f(x_2)=\frac{3x_2-1}{x_2}$

Equating the expression then we get

$\frac{3x_1-1}{x_1}=\frac{3x_2-1}{x_2}$

$3x_1x_2-x_2=3x_2x_1-x_1$

$3x_1x_2-3x_1x_2+x_1=x_2$

$x_1=x_2$

Therefore, f is one-to-one.

6 0

2 years ago

Find the highest common factor of 120 and 150

Thepotemich [5.8K]

The highest common factor is 13

3 0

3 years ago

Read 2 more answers

Need help pls explain

Scilla [17]

Answer:

C. 93°

Step-by-step explanation:

WY is the diameter.

WX and XY sum to 180° as half the circle.

Central angle is equal to intercepted arc:

mXY = m∠XVY = 87°
mWX = 180° - mXY = 180° - 87° = 93°

Correct choice is C

4 0

2 years ago

Read 2 more answers

Manert’s grandfather put $4100 in the bank for him when he was born. The account has been earning 6.5% interest compounded annua

Travka [436]

Answer:

Ans: $19,793

Step-by-step explanation:

Compound interest:

A = P(1+6/100)²⁵

= 4100(1+0.065)²⁵

=19,793

3 0

2 years ago