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Bond [772]
3 years ago
15

HELP PLSSS HURRY PLS

Mathematics
1 answer:
nignag [31]3 years ago
6 0

Answer:

48

Step-by-step explanation:

because it gives us the perimeter, we add all the sides

4z-1+4z-1+5z+3+5z+3=166

8z-2+10z+6=166

18z+4=166

18z=162

z=9

side PS is 5z+3

plug in z to get 45+3=48

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Question 1 (0.5 points)
Finger [1]

Answer:

39.91 degrees.

Step-by-step explanation:

Formula

Sin(A)/a = Sin(B) / b

Givens

  • A = 84
  • a = 31
  • B = ?
  • b = 20

Solution

Sin(84)/31 = Sin(B)/20

20*Sin(84) / 31 = Sin(B)

Sin(B) = 0.6416

B = 39.91 degrees.

====================

This looks like it is right, but you should check. Let h be the height opposite angle A.

h/20 = sin(39.91)

h = 20*sin(39.91)

h = 12.83

31 has to be longer than that amount (which it is.) So there is one solution.

8 0
3 years ago
Freee pointsssssssssss
Ugo [173]
Thanks for the free points! Have a fantastic day!
4 0
3 years ago
Read 2 more answers
Can somebody help me with the Math's questions with Forming and Solving Equations? Thanks
mojhsa [17]

Step-by-step explanation:

the area of the square is (x+2)^2 and the factored form of it is x^2+4x+4

since we know the area is = 7 therefore

x^2 + 4x +4 = 7 and x^2 + 4x = 3

if you want to find the value of x :

x^2+4x+4 = 7

x^2+4x -3 = 0

(x-3)(x-1)=0

x = 3 or

x = 1

5 0
3 years ago
A new toy hits the local store. Sales (in hundreds) increase at a steady rate for several months, then decrease at about the sam
Montano1993 [528]

Answer:

Option A.

Step-by-step explanation:

It is given that, sales (in hundreds) for several months can be modeled by the function:

S(m)=-0.625|m-8|+5

We need to find the month in which 400 toys were sold.

Substitute S(m)=4 in the given function.

4=-0.625|m-8|+5

4-5=-0.625|m-8|

-1=-0.625|m-8|

\dfrac{-1}{-0.625}=|m-8|

1.6=|m-8|

Now,

\pm 1.6=m-8

1.6=m-8 or -1.6=m-8

1.6+8=m or -1.6+8=m

9.6=m or 6.4=m

Approx the value to the next whole number.

m\approx 10 or m\approx 7

It means, 400 toys were sold on 7th and 10th month.

Therefore, the correct option is A.

5 0
3 years ago
MATH PROBLEM NEED ANSWER ASAP!!!
vitfil [10]
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