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krek1111 [17]
3 years ago
12

What is the square root of 16 ? Join 915 9482 0043 Gm1fgZ

Mathematics
1 answer:
lutik1710 [3]3 years ago
4 0

Answer:

the square root of 16 is 5

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HELP DUE IN 10 MINS! <br><br> The lighthouse is ?? feet above the water.
jasenka [17]

Answer:

<u>Use tangent:</u>

  • BL/BS = tan S
  • x / 144 = tan 25°
  • x = 144 tan 25°
  • x = 67 ft (rounded)

3 0
3 years ago
Solve each linear equation for x. (A) –12x + 9 = –15x x = (B) 4.5x + 11.5 = 8.5x + 3.5 x = (C) 23x – 9 = 13x x =
mojhsa [17]

Answer:

A. x = -3

B. x = 2

C. x = 9/10

Step-by-step explanation:

(A) –12x + 9 = –15x

Collect like terms

9 = -15x + 12x

9 = -3x

x = 9 / -3

x = -3

(B) 4.5x + 11.5 = 8.5x + 3.5

4.5x - 8.5x = 3.5 - 11.5

-4x = -8

x = -8 / -4

x = 2

(C) 23x – 9 = 13x

-9 = 13x - 23x

-9 = -10x

x = -9 / -10

x = 9/10

5 0
3 years ago
Tell whether ΔABC and ΔDCB can be proven congruent.
Vikentia [17]

Answer:

D. No, there isn’t enough information because only two pairs of corresponding sides can't be used to prove that two triangles are congruent.

4 0
2 years ago
Simplify the expression.<br><br> 7.5(–5.9)
Alex17521 [72]
7.5<span>(<span>−5.9</span>)</span><span>my answer is =<span>−<span>44.25
</span></span></span>
7 0
3 years ago
Read 2 more answers
I am have trouble with these x-intercepts. Please help me.​
kotegsom [21]

Answer:

  1. x=8, x=2
  2. no solution
  3. no solution

Step-by-step explanation:

For the equation ...

  y = a(x -h)² +k

you can find the x-intercepts by setting y=0 and solving for x.

  0 = a(x -h)² +k

  -k = a(x -h)² . . . . . . subtract k

  -k/a = (x -h)² . . . . . divide by a

  ±√(-k/a) = x -h . . . . take the square root

  h ± √(-k/a) = x . . . . add h . . . . this is the general solution

__

So, for each of your problems, fill in the corresponding numbers and do the arithmetic. If (-k/a) is a negative number, the square root gives imaginary values, so there is "no solution".

1.  x = 5 ± √9 = {5 -3, 5 +3} = {2, 8} . . . . the x-intercepts are 2 and 8

2.  x = -3 ± √(-2) . . . . . . no solution; the roots are complex

3.  x = 5 ± √(-8/4) . . . . . no solution; the roots are complex

7 0
3 years ago
Read 2 more answers
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