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astraxan [27]
3 years ago
9

Help please ! Need the answers

Mathematics
1 answer:
son4ous [18]3 years ago
8 0

Answer:

x=\frac{-5+\sqrt{13}}{6} or x=\frac{-5-\sqrt{13}}{6} (decimal: x=-0.23240 , x=-1.43425)

Step-by-step explanation:

a = 3, b = 5, c = 1

plug into quadratic formula

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Is triangle abc ~ triangle def ?
tamaranim1 [39]

Answer:

Unable to be determined.

Step-by-step explanation:

AA postulate : 2 corresponding angles that are congruent.

SSS theorem : 3 sides of a triangle that are equal to another triangle's 3 sides.

SAS postulate: 2 sides and their included angle are congruent to another triangle's 2 sides and their included angle.

This would seem to follow the SAS postulate at first, but the angle we are provided is not the included angle of the sides. In triangle ABC, we are analyzing lines AB and AC. Their included angle is A, but we are given the measure for angle B.

Same with DEF; we analyze DE and DF, who share angle A, but we are given angle E as a measure.

Therefore, we cannot determine if the triangles are similar or not.

5 0
3 years ago
SIMPLIFY THE EXPRESSION PLEASE 3(-6 + 2j)
snow_lady [41]

Answer:

-18 + 6j

Step-by-step explanation:

you multiply 3 by -6 which is -18

then you multiply 3 by 2j which is 6j

6 0
3 years ago
A runner is 5/6 mile from the finish line. If he can travel 3/6 mile per minute, how long will it take them to finish the race?
lianna [129]

Answer:

5/3min

Step-by-step explanation:

Yo only have to divide 5/6 miles by 3/6 mile/min to know the time it will take to cover a distance given a velocity.

5*6=30

6*3=18

30/18 = 5/3min!!

5 0
3 years ago
Students are selling muffins at a school bake sell. One muffin cost $0.25, 2 cost $0.37, 3 cost $0.49, and 4 cost $0.61. If this
andre [41]
The cost of 7 muffins would be $0.97
3 0
3 years ago
Read 2 more answers
Greg has a dollar, many quarters, and many dimes. Fill in the table to show the ways he can make $1.75. How many ways can he mak
choli [55]
1 dollar
1 quarters
5 dimes 

because you just think of how you can break down 1.75 in to cents
3 0
3 years ago
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