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Dahasolnce [82]
2 years ago
13

I need answers 1 through 5 please

Mathematics
1 answer:
Delicious77 [7]2 years ago
7 0

Answer:

1) first & last option

2) x=10

3) x=15

4) acute, acute, obtuse. right

5)

Step-by-step explanation:

(8)^2+(6)^2=(x)^2

64+36=x^2

square root of 100= square root of x^2

x= 10

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Show that if the point with coordinates (x,y) is equidistant from the point (2,0) and the line y=−4, then y=1/8(x-2)²-2.
harkovskaia [24]

Answer:

The demonstration is showed below

Step-by-step explanation:

The distance betwenn two points is given by:

d = \sqrt{(x2-x1)^2+(y2-y1)^2}

If the point is equidistant from a point and a line, the distance must be equal. For the line let's select the point (x,-4), because the distance will be ortogonal, and is the small distance between a point and a line. So:

\sqrt{(x-2)^2+(y-0)^2}  = \sqrt{(x-x)^2+(y+4)^2}

Removing the squares:

(x-2)² + y² = (y+4)²

(x-2)² + y² = y² + 8y + 16

y² - y² - 8y = 16 - (x-2)²

8y = (x-2)² - 16

y = (1/8)*(x-2)² - 16/8

y = (1/8)*(x-2)² - 2

6 0
3 years ago
Which equation is true for y?
jeyben [28]
ANSWER: D

REASON:
4(y x y) = 4(y^2) = 4y^2

Hope that helps!
8 0
2 years ago
David runs on a track that is 1/4 mile long he completes it in 1/20 of an hour
posledela

Answer:

<h2> 5mile per hour</h2>

Step-by-step explanation:

Step one:

given data

distance= 1/4mile

time taken= 1/20 hour

Step two:

Required

speed

we know that speed is

speed= distance/time

substituting

speed= 1/4/1/20

speed=1/4*20/1

speeed=20/4

speed=5mile/hour

The option a sis correct, the speed is 5mile per hour

7 0
3 years ago
WILL GIVE BRAINLYEST TO FIRST NEED ASAP
Harman [31]

Answer:

122

Step-by-step explanation:

hope thats itbecause i just times 16x7 \_(^-^)_/

5 0
3 years ago
Read 2 more answers
2(x+11) = -26 show all work pls
Degger [83]

Answer:

x = -24

Step-by-step explanation:

First, distribute 2 to all terms within the parenthesis:

2(x + 11) =

2 * x = 2x

2 * 11 = 22

2x + 22 = -26

Isolate the variable, x. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS. PEMDAS is the order of operations, and stands for:

Parenthesis

Exponents (& Roots)

Multiplications

Divisions

Additions

Subtractions

~

First, subtract 22 from both sides of the equation:

2x + 22 (-22) = -26 (-22)

2x = -26 - 22

2x = -48

Next, divide 2 from both sides of the equation:

(2x)/2 = (-48)/2

x = -48/2

x = -24

x = -24 is your answer.

~

4 0
3 years ago
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