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Vladimir [108]
3 years ago
8

A triangle has an area equal to:

Mathematics
1 answer:
Lostsunrise [7]3 years ago
6 0
I think its D

Explanation:
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9.8 is the middle number which is the median
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Find all the missing parts to the triangle below
Arada [10]
Use Law of Cosines                             g^2 = f^2 + h^2 -2fhCosG                     f^2 = g^2 + h^2 -2ghCosF                    h^2 = f^2 + g^2 -2fgCosH

f^2 = 28^2 + 15^2 -2*28*15Cos87        28^2 = 31^2 + 15^2 -2*31*15CosG 
f^2 = 784 + 225 - 43.96                        784 = 961+225 - 930CosG 
f^2 = 965.0378                                    784 - 1186 = -930CosG
f = 31                                                 -402 = -930CosG             Divide by -930
                                                           .432258 = CosG
                                                           Cos^-1(.432258) = G
                                                             G = 64 degrees

Angle H = 180 - 64 - 87 = 29 degrees

Side f =   31                     Angle F =  87 degrees
Side g =  28                     Angle G = 64 degrees
Side h =  15                     Angle H =29  degrees
3 0
3 years ago
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The ratio of customers who purchase items with coupons to customers who don’t use coupons is 6 to 16. If 9 customers use coupons
oksano4ka [1.4K]

Answer:13.5

Step-by-step explanation: 6:9

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             divide both by 3     2:3

             now multiple 4.5.    9:13.5

7 0
3 years ago
What is the value of x in the expression 1/3x-2/3=-18<br> -56<br> -52<br> 52<br> 56
Troyanec [42]

Answer: -52

Step-by-step explanation: I just know

7 0
3 years ago
Helppppp me please this twi ​
8_murik_8 [283]

Answer:

4.) 7 : 4 = 36[g] : x [g]

    7 * x [g] = 4 * 36 [g]

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5.) 3:2   250

3x + 2x =250

5x=250

x=50

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4 0
3 years ago
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