All categories

3 years ago

PLEASE PLEASE HELP!!! I just need to catch up!!

Mathematics

1 answer:

Kay [80]3 years ago

6 0

1. S.S.A
2.S.A.A
3. That looks like the same question as two I can't quite see it.

You might be interested in

let a function F:A➡️B be defined by f(x)=x+1÷2x-1 with A={-1,0,1,2,3,4} and B= {-1,0,4/5,5/7,1,2,3,}.Find the range of f. plzzzz

lidiya [134]

Answer:

Range: {-1, 0, 5/7, 4/5, 1, 2}

Step-by-step explanation:

We know that:

f(x) = (x + 1)/(2x - 1)

And:

f: A ⇒ B

where:

A={-1,0,1,2,3,4}

B= {-1,0,4/5,5/7,1,2,3,}

We want to find the range of f(x).

The range of f(x) will be the set of the outputs of f(x) (and because f goes from A to B, we will only take the outputs that belong to B).

Then we only need to evaluate all the values of A in f(x), and see if the output belongs to B.

we have:

f(x) = (x + 1)/(2x - 1)

f(-1) = (-1 + 1)/(2*-1 - 1) = 0 (this does belong to B)

f(0) = (0 + 1)/(2*0 - 1) = -1 (this does belong to B)

f(1) = (1 + 1)/(2*1 - 1) = 2 (this does belong to B)

f(2) = (2 + 1)/(2*2 - 1) = 1 (this does belong to B)

f(3) = (3 + 1)/(2*3 - 1) = 4/5 (this does belong to B)

f(4) = (4 + 1)/(2*4 - 1) = 5/7 (this does belong to B)

So the range of f(x) is the set with all these outputs, which is:

Range: {-1, 0, 5/7, 4/5, 1, 2}

5 0

3 years ago

I am very confused, I need help, please!!!!

seropon [69]

Answer: B

Step-by-step explanation:

A is incorrect because going from -10 to 10 is not 0, it is 20.

C is incorrect because 21 km from sea level is adding 21.

D is incorrect because the total distance biking to school and back is actually 6.2.

B is correct because buying an item for the same price then selling it for the same price results in no increase in profit but consistency therefore being 0.

7 0

3 years ago

Please answer correctly ASAP !!!!!! Will mark brainliest !!!!!!!!!

BigorU [14]

Answer:

X=3/2 and 2/3

Step-by-step explanation:

6x^2 - 13^x + 6= 0

6x^2 - 4x - 9x + 6=0

By factorising...

2x(3x - 2) - 3(3x - 2)=0

(2x - 3) (3x - 2)=0

2x - 3=0

2x=3

X=3/2

3x - 2=0

3x=2

X=2/3

Hence, X=3/2 and 2/3

7 0

3 years ago

2. The width of a rectangle is 12 inches less than its length. The perimeter of the rect-

Alona [7]

Answer:

$P= 2*Lenght + 2*Width$

Since the perimeter is 56 inches we can solve for the lenght with this equation:

$56 in = 2*12in + 2*Length$

And solving for the length we got:

$Length = \frac{56in -24 in}{2} 16 in$

So then the lenght = 16 inhes and the width of 12 inches

Step-by-step explanation:

For a rectangle of width 12 inches and lenght y inches we know that the perimeter is given by:

$P= 2*Lenght + 2*Width$

Since the perimeter is 56 inches we can solve for the lenght with this equation:

$56 in = 2*12in + 2*Length$

And solving for the length we got:

$Length = \frac{56in -24 in}{2} 16 in$

So then the lenght = 16 inhes and the width of 12 inches

5 0

3 years ago

Which of the following is a secant on the circle below?

aliya0001 [1]

Answer:

A and B

Step-by-step explanation:

A secant is a line which intersects a circle at 2 points

SU and RT both intersect the circle at 2 points and are secants

7 0

3 years ago