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OLEGan [10]
3 years ago
10

PLZ HELP ASAP WILL MARK BRAINLIEST

Mathematics
1 answer:
Mkey [24]3 years ago
3 0

DEF will be 2.68

EF will be .67

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The following equation is given.
SashulF [63]

5x² - 9x + 45 = 0

Δ = b² - 4.a.c

Δ = (-9)² - 4 . 5 . 45

Δ = 81 - 4. 5 . 45

Δ = -819

There's no real root.

7 0
3 years ago
√225x^7y^9
igor_vitrenko [27]

Answer:

√(225x^7y^9) = 15 sqrt(x^7 y^9)

Step-by-step explanation:

4 0
3 years ago
8th grade khan academy
satela [25.4K]

Answer:

d = 11t - 20

Step-by-step explanation:

Hope it helps and have a great day! =D

~sunshine~

4 0
3 years ago
Anyone know how to do this with a explanation ?
storchak [24]

Answer:

30 degrees

Step-by-step explanation:

Since we know that all triangles equal 180 degrees, we can add the 2 given angles and subtract that from 180 to find the remaining angle.

90+60=150

180-150=30 degrees

8 0
3 years ago
The angles in a triangle are 100, 40, and 40 degrees. Classify the triangle by its angles and sides.
lara [203]

Answer:

F. Obtuse isosceles

Step-by-step explanation:

Since we have an angle that is 100 degrees, we have an obtuse angle

We have two angles that are 40, which means we have two sides that are equal length, because two angles have the same measure.  That means it is isosceles

The triangle is an obtuse isosceles

8 0
3 years ago
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