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Hitman42 [59]
3 years ago
11

Y2-2y+6 for y=2is who did first is the brainliest and you will be followed only the first person

Mathematics
2 answers:
shusha [124]3 years ago
3 0

Answer:

<h2>6</h2>

Step-by-step explanation:

<h3>to understand this</h3><h3>you need to know about:</h3>
  • algebra
  • PEMDAS
<h3>given:</h3>
  • y²-2y+6
  • y=2
<h3>let's solve:</h3>
  1. substitute the value of y:2²-2.2+6
  2. simplify exponent:4-2.2+6
  3. simplify multiplication;4-4+6
  4. simplify addition:4+2
  5. simplify addition:6
Mila [183]3 years ago
3 0

Answer:

6

y2-2y+6

since y= 2

22-22+6

=6

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A radio tower has a 64 ft Shadow cast by the sun. If the angle from the tip of the shadow to the top of the tower is 78.5°. what
Softa [21]

Step-by-step explanation:

right-angled triangle, and law of sine (for any type of triangles) :

a/sin(A) = b/sin(B) = c/sin(C)

where the sides and the correlated angles are always opposite from each other.

and we know that the sum of all angles in a triangle is always 180°.

so, the angle at the foot of the radio tower is 90°.

the angle from the top of the shadow to the top of the tower is 78.5°.

so, the third angle (at the top of the tower) is

180 - 90 - 78.5 = 11.5°

and with the law of sine we get

height/sin(78.5) = 64/sin(11.5)

height = 64×sin(78.5)/sin(11.5) = 314.57005... ft

6 0
2 years ago
*I WILL MARK YOU BRAINLIEST!!!!*
Anastaziya [24]

Answer:

The answer would be -9 and -3 which would be B and D

Step-by-step explanation:

3 0
2 years ago
Find the slope of the line whose equation is 4x - 6y = 8.<br><br> 2/3<br> -2/3<br> 3/2
k0ka [10]
The slope of the line is 2/3
4 0
3 years ago
Read 2 more answers
Which of the following is the same as 8.4 × 102 ?<br> a. 840<br> b. 84<br> c. 8,400<br> d. .84
gavmur [86]
Move the decimal 2 places to the right

8.4 becomes 840
7 0
3 years ago
Read 2 more answers
Solve for w.<br><br> 5w + 9z = 2z + 3w<br><br> w = z<br> w = z<br> w = –2z<br> w = –7z
Semenov [28]

5w + 9z = 2z + 3w

Move terms with w to the left - subtract 3w from both sides

2w + 9z = 2z

Subtract 9z from both sides

2w = -7z

Divide both sides by 2

w = \frac{-7}{2}z

6 0
3 years ago
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