All categories

2 years ago

Need help asap will give up to 1k points to anyone who helps With all retake questions

Mathematics

1 answer:

Aleks04 [339]2 years ago

5 0

Answer:

Step-by-step explanation:

Givens

LM is a tangent.

MN is the external part of a secant. Given as 11

MO is a secant. Given as 44

Formula

ML^2 = MN * MO √Substitute numbers for indicated lengths

ML^2 = 11*44 Combine

ML^2 = 484 Take the square root of both sides.

√ML^2 = √484

ML = 22

You might be interested in

What times 4will get to 80

Makovka662 [10]

20 times 4 will get to 80

7 0

3 years ago

Read 2 more answers

Based on previous sales, Ron predicted sales of 80 pen sets. He actually sold 100 pen sets. Find the error and absolute error fo

bagirrra123 [75]

Answer:

A=-20 B=20

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

I spent 3/4 of my money and then I spent 1/5 of what was left.

Alborosie

1/20 is the fraction that you'll have left

6 0

3 years ago

The graphs of the linear functions f and g are shown above. If h(x)=f(x)+g(x), then h′(x)=

SpyIntel [72]

Based on the graph,

f(x) = 1/2x+3

g(x) = -x+4

so, h(x) = -1/2 x +7

Since h'(x) is the derivative or slope of h(x) and h is a line,

h'(x) = -1/2, Answer C.

7 0

3 years ago

For each of the following functions, determine if they are injective. Also determine if theyare surjective. Also determine if th

timurjin [86]

Answer:

Check below

Step-by-step explanation:

1. Definition for intervals

$(a,b)=\left \{ x\in\Re : a$

2. Functions

1) $\Re \rightarrow \Re \\ f(x)=x$

Let's perform graph tests.

That's an one to one, injective function. Look how any horizontal line touches that only once. Also, It's a surjective and a bijective one.

2) $\Re\geq0\rightarrow\Re , f(x)=x+1\\$

Injective, surjective and bijective.

Injective: a horizontal line crosses the graph in one point.

3) $f:\Re\geq 0\rightarrow\Re, f(x) = cos(x)$

The cosine function is not injective, bijective nor surjective.

4) $f:\Re\rightarrow\Re \:f(x)=ex$

Since e, is euler number it's a constant. It's also injective, surjective and bijective.

5) Quite unclear format

$6) \:f:\Re\rightarrow(0,\infty), f(x) =ex$

Despite the Restriction for the CoDomain, the function remains injective, surjective and therefore bijective.

$7) f:\Re\geq 0 \rightarrow \Re\geq0, f(x) =x^{4}$

Not injective nor surjective therefore not bijective too.

$8).f:\{-1,2,-3\}}\rightarrow \{1,4,9\}, f(x) =x^{2}$

$f(-1)=1, f(2)=4, f(-3)=9$

Injective (one to one), Surjective, and Bijective.

$10) f:\Re\geq 0\rightarrow [-1,1], f(x)= cos(x)\\-1=cos(x) \therefore x=\pi,3\pi,5\pi,etc.$

Surjective.

$11.f:R\geq 0[-1,1], f(x) = 0\\$

Surjective

12.f: US Citizens→Z, f(x) = the SSN of x.

General function

13.f: US Zip Codes→US States, f(x) = The state that x belongs to.

Surjective

7 0

3 years ago