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3 years ago

Simplify the expression. 8+6x3-(20/2)^2

Mathematics

1 answer:

REY [17]3 years ago

8 0

8 + 6 x 3 - (20/2)^2
= 8 + 18 -(10)^2
= 8 + 18 - 100
= -74

answer
- 74

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2 years ago

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10. Find four consecutive integers such that the sum of the first three is one more than twice the largest.

alexgriva [62]

Answer:

2,3,4,5

Step-by-step explanation:

let four consecutive numbers are x,x+1,x+2,x+3

condition:

x+(x+1)+(x+2)+1=2(x+3)

3x+4=2x+6

3x-2x=6-4

x=2

Now first number 2

2nd number=x+1

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2 years ago

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3 years ago

An angle of -210 degree is in standard position. What are the coordinates of the point at which the terminal side intersects the

Lunna [17]

Answer:

( - $\sqrt{3}$ /2 , -1/2)

Step-by-step explanation:

-210 degrees in standard position corresponds to an angle in the 3rd quadrant 30 degrees below the negative x-axis

The hypotenuse of the triangle here is 1, and we want the coordinates.

_______________________(0,0)

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3 years ago

The measure of angle A is 15°, and the length of side

dangina [55]

Answer:

Part 1) $AB=30.9\ units$

Part 2) $AC=29.9\ units$

Step-by-step explanation:

The picture of the question in the attached figure

Part 1

Find the length side AB

we know that

$sin(A)=\frac{BC}{AB}$ ----> by SOH (opposite side divided by the hypotenuse)

substitute the given values

$sin(15^o)=\frac{8}{AB}$

solve for AB

$AB=\frac{8}{sin(15^o)}=30.9\ units$

Part 2

Find the length side AC

we know that

$tan(A)=\frac{BC}{AC}$ ----> by TOA (opposite side divided by the adjacent side)

substitute the given values

$tan(15^o)=\frac{8}{AC}$

solve for AC

$AC=\frac{8}{tan(15^o)}=29.9\ units$

8 0

3 years ago