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3 years ago

8 subtracted from v pls help me get the answer

Mathematics

1 answer:

user100 [1]3 years ago

6 0

I’m probably wrong but maybe it’s 2 to the 3rd power again I’m probably wrong

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Triangle ABC has vertices at (-4,0) , (-1, 6) and (3,-1) perimeter of triangle ABC, rounded to the nearest tenth ?

makvit [3.9K]

Answer:

The perimeter of triangle ABC is $P=21.8\ units$

Step-by-step explanation:

The perimeter of triangle ABC is equal to

$P=AB+BC+AC$

the formula to calculate the distance between two points is equal to

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

we have

$A(-4,0),B(-1, 6),C(3,-1)$

step 1

Find the distance AB

$A(-4,0),B(-1, 6)$

substitute in the formula

$d_A_B=\sqrt{(6-0)^{2}+(-1+4)^{2}}$

$d_A_B=\sqrt{(6)^{2}+(3)^{2}}$

$d_A_B=\sqrt{45}\ units$

step 2

Find the distance BC

$B(-1, 6),C(3,-1)$

substitute in the formula

$d_B_C=\sqrt{(-1-6)^{2}+(3+1)^{2}}$

$d_B_C=\sqrt{(-7)^{2}+(4)^{2}}$

$d_B_C=\sqrt{65}\ units$

step 3

Find the distance AC

$A(-4,0),C(3,-1)$

substitute in the formula

$d_A_C=\sqrt{(-1-0)^{2}+(3+4)^{2}}$

$d_A_C=\sqrt{(-1)^{2}+(7)^{2}}$

$d_A_C=\sqrt{50}\ units$

step 4

Find the perimeter

$P=AB+BC+AC$

substitute the values

$P=\sqrt{45}+\sqrt{65}+\sqrt{50}=21.8\ units$

8 0

3 years ago

What is the value of x?

Angelina_Jolie [31]

Answer/Step-by-step explanation:

well, first figure out how many units/times prism A was enlarged to become prism B...

16 ÷ 2 = 8

Now if we apply that info to the length of the prism, then...

80 ÷ 8 = 10

Therefore x = 10

And the Prisms remain congruent and proportional!

<h2>Hope this helps!</h2><h2>Please mark Brainliest!!! <em>=D</em></h2>

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3 years ago

Write sin 75° in terms of the cosine

timama [110]

Answer:

Use z = a +bi = IzI (cos (Ф) + i sin (Ф)) to find the trigonometric form. √2+∛ / 2 (cos (0) + i sin (0))

Step-by-step explanation:

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3 years ago

BRAINIEST TO WHOEVER RIGHT

Xelga [282]

Answer:

the third quartile is 8.......

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3 years ago

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Help pleaseeeeepleassssseeeee

Elina [12.6K]

Area of a trapezoid is height times the average of the bases,

A= 1/2 h (a + b)

Here we have height h=12 and bases a=30, b=12 so area

A = (1/2) (12) (30 + 12) = 6(42)= 252

Answer: B

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3 years ago

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