Do you guys know which one im supposed to choose

Mathematics

1 answer:

valkas [14]3 years ago

4 0

Answer:

you have to aline it with what graph it is.

Step-by-step explanation:

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A 10-foot ladder leans against a wall so that it is 6 feet high at the top. The ladder is moved so that the base of the ladder t

konstantin123 [22]

Answer:

The top of the ladder is now at 10 ft.

Step-by-step explanation:

At the start, we have a height H=6, a length L=10 and a base B, that has to be calculated by the Pythagorean theorem:

$B^2=L^2-H^2=10^2-6^2=100-36=64\\\\B=\sqrt{64}=8$

The base is moved twice the distance the height moves up.

We called this distance x, so we have:

$L^2=(H+x)^2+(B-2x)^2=H^2+2Hx+x^2+B^2-4Bx+4x^2\\\\L^2=(H^2+B^2)+5x^2+(2H-4B)x\\\\L^2=L^2+5x^2+(2H-4B)x\\\\0=5x^2+(2H-4B)x\\\\5x+(2H-4B)=0\\\\x=\dfrac{4B-2H}{5}=\dfrac{4*8-2*6}{5}=\dfrac{32-12}{5}=\dfrac{20}{5}=4$

The new height (H+x) is

$H'=H+x=6+4=10$

The base travels 2x=8, so the new base B' is 0.

This means that the ladder is all against the wall (L=H').

6 0

3 years ago

Lend me a hand please

Nookie1986 [14]

Answer:

A) y>=-1

Step-by-step explanation:

The line itself is y=-1, but it is also filled in. Therefore, we are down to either A or C as the right answer

Since (0,0) is a solution to the inequality as indicated by the shade, we know that since y=0 in the origin, 0 is greater than -1, so therefore A is the correct answer.

4 0

3 years ago

Kira employer purchased a health insurance plan that costs $665 per month and requires that Kira pay $75 toward the plan. What i

Ainat [17]

So basically they want you to find out how much Kira/employer has to pay per year so

665=monthly
12 months in a year
665 times 12=7980

also the additonal 75 to start so
7980+75=8055 per year or annualy

3 0

4 years ago

Read 2 more answers

Please help this is due, not sure if I did this right. Triangle ABC is shown below with vertices A (7,4), B(1,1), and C(9,0). Fi

Paha777 [63]

i think u did it right

5 0

3 years ago

Please help me I don't know how to do this!<br> Find the measure of the angles.

KengaRu [80]

Answer:

which angles do you mean its kinda confusing