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3 years ago

Can someone please help me with the last one I keep getting the same answer

Mathematics

2 answers:

djyliett [7]3 years ago

8 0

The answer is b^2+2bd+d^2-1.

mojhsa [17]3 years ago

6 0

Answer:

i cant even figure it out

Step-by-step explanation:

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Larry, Camille, and Simone are keeping track of how far they walk each day. At the end of the week they combined their distances

solniwko [45]

The distance walked by Larry is 9 miles and Camille is 18 miles and Simone is 7 miles

Solution:

Let "x" be the distance walked by Larry

Let "y" be the distance walked by Camille

Let "z" be the distance walked by Simone

At the end of the week they combined their distances and found that they walked 34 miles in total

Total distance = 34 miles

Therefore, we can say,

x + y + z = 34 ---------- eqn 1

Camille walked twice as far as Larry

distance walked by Camille = 2(distance walked by Larry)

y = 2x ---------- eqn 2

Larry walked 2 more miles than Simone

distance walked by Larry = 2 + distance walked by Simone

x = 2 + z

z = x - 2 ------- eqn 3

Substitute eqn 2 and eqn 3 in eqn 1

x + 2x + x - 2 = 34

4x - 2 = 34

4x = 34 + 2

4x = 36

Substitute x = 9 in eqn 2

y = 2(9) = 18

Substitute x = 9 in eqn 3

z = 9 - 2

Thus distance walked by Larry is 9 miles and Camille is 18 miles and Simone is 7 miles

4 0

3 years ago

Lamont works for an electric utility and is installing a 40 foot utility pole as shown. Lamont drills the anchor of a support ca

PIT_PIT [208]

Answer:

Approximately 43 feet of minimum cable is needed.

Step-by-step explanation:

This problem can be solved using Trigonometry and Pythagorean theorem. Pythagorean theorem applies on right-triangles (which are known to have one 90° angle). The theorem states that the square of the Hypotenuse is obtained by the squared sum of the other two sides of the triangle (i.e the two sides forming the 90° angle - with the hypotenuse side being across it as:

$h^2=a^2+b^2$ Eqn. (1)

where

$h$ is the hypotenuse

$a$ is a side

$b$ is a side

Now in this case, the utility pole must be perpendicular to the ground and the anchor being parallel to the ground, and a 90° angle formed between them. Conclusively the cable length will be represented by the hypotenuse in a right triangle. So here we have $a=40ft$ and $b=15ft$ . Plugging in Eqn.(1) and solving for $h$ we have: