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vredina [299]
3 years ago
8

In △ ABC and △DEF, AC = DF, AB = DE and < A = Pls help dont scam me pls....

Mathematics
1 answer:
zysi [14]3 years ago
5 0

Answer:

∠A = ∠D  (**but very important Δ ABC has to be congruent to Δ DEF)

Step-by-step explanation:

It will help if you draw the triangles out and label the same sides. Then according to the side-angle-side (SAS) rule, ∠A should be equal to ∠D

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Please help! I am stuck
marta [7]
A. 27. 
we can prove that the two triangles within the triangle are congruent (the triangle is an isosceles) with SAS. then we do 180- (63 x 2). then we get the top angle. and then we divide 54 by 2 to make the individual angles and then we get 27. 
8 0
3 years ago
Help I’ll mark brainliest
lakkis [162]

Answer:

12.04m = l

Step-by-step explanation:

We can use the Pythagorean theorem

a^2 + b^2 =c^2

where a and b are the legs and c is the hypotenuse

12^2 + 1 ^2 = l^2

144 + 1 = l^2

145 = l^2

Take the square root of each side

sqrt(145) = sqrt(l^2)

12.04159458 = l

To the nearest hundredth

12.04m = l

5 0
3 years ago
Read 2 more answers
a quantity of ethanol is cooled from 47.9° C to 12.3°C and releases 3.12 KJ of heat. what is the mass of the ethanol sample?​
victus00 [196]

Answer:

35.9 grams

Step-by-step explanation:

We use the formula:

q=m*C_p*\Delta T

Where

q is heat released

m is mass

C_p is the constant 2.44

ΔT is change in temperature

We put the info in the formula and solve for m (mass):

q=m*C_p*\Delta T\\-3.12 =  m*2.44(12.3-47.9)\\-3.12*10^3=m*(-86.864)\\m=35.9

The mass of ethanol is 35.9 grams

8 0
4 years ago
Select the correct images on the graph.
MatroZZZ [7]

Answer:

the dark purple in the bottom, brown reddish one light purple one in the bottom

Step-by-step explanation:

5 0
3 years ago
Can someone help me?​
Norma-Jean [14]

Answer: 26

Step-by-step explanation:

32-6 = 26

8 0
3 years ago
Read 2 more answers
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