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3 years ago

What is the slope of A and B

Mathematics

1 answer:

tino4ka555 [31]3 years ago

3 0

1/3 rise=1 run=2. Therefore the answer is 1/3

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Does anyone know this??

blagie [28]

Answer:

x = 38, y = 4

Step-by-step explanation:

Since AB = BC then the triangle is isosceles and the base angles are congruent, that is

∠ DAB = ∠ DCB = 52°

Subtract the sum of the base angle from 180° for ∠ ABC

∠ ABC = 180° - (52 + 52)° = 180° - 104° = 76°

Note that ∠ ABD = ∠ CBD, thus

x = 76 ÷ 2 = 38

BD bisects the side AC, thus DC = AD = 4

Thus y = 4

5 0

3 years ago

Which of the following are ordered pairs for the equation y = 1/8x + 11

Anna11 [10]

Answer:

(0, 11) is a solution.

(8, 12) is a solution.

(16, 13) is a solution

(1, 89/8)

(2, 45/4)

Step-by-step explanation:

y = 1/8x + 11

for this equation....

y = (1/8) x + 11

let x = 0 get

y = 0 + 11 = 11

(0, 11) is a solution.

(8, 12) is a solution.

(16, 13) is a solution

(1, 89/8) because y = 1/8 + 11 = 1/8 + 88/8 = 89/8

(2, 45/4)

3 0

3 years ago

PLEASE HELP QUICK!! WILL OFFER 100 POINTS TO THE FIRST ONE THAT ANSWERS

Reil [10]

Given

$x+1 = \sqrt{7x+15}$

We have to set the restraint

$x+1\geq 0 \iff x \geq -1$

because a square root is non-negative, and thus it can't equal a negative number. With this in mind, we can square both sides:

$(x+1)^2=7x+15 \iff x^2+2x+1=7x+15 \iff x^2-5x-14 = 0$

The solutions to this equation are 7 and -2. Recalling that we can only accept solutions greater than or equal to -1, 7 is a feasible solution, while -2 is extraneous.

Similarly, we have

$x-3 = \sqrt{x-1}+4 \iff x-7=\sqrt{x-1}$

So, we have to impose

$x-7\geq 0 \iff x \geq 7$

Squaring both sides, we have

$(x-7)^2=x-1 \iff x^2-14x+49=x-1 \iff x^2-15x+50 = 0$

The solutions to this equation are 5 and 10. Since we only accept solutions greater than or equal to 7, 10 is a feasible solution, while 5 is extraneous.

7 0

3 years ago

What is the x-coordinate of the solution to the system of equations shown below?

Shkiper50 [21]

The x-coordinate is b. -5

5 0

3 years ago

Read 2 more answers

The angles below are supplementary. What is the value of x?

insens350 [35]

Answer:

see the attached picture please