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MrRissso [65]
3 years ago
12

Donald took a math test and got 15 answers correct and 5 incorrect how many questions were on the test

Mathematics
2 answers:
Pepsi [2]3 years ago
8 0
There should be 20 questions that was on the test.
jekas [21]3 years ago
5 0
20 questions

Is this some type of trick question I'm missing out on? 
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In an obtuse isosceles triangle the angle measurements are, x∘, x∘, and (10x−2)=128∘. Find the measurement of one of the acute a
klemol [59]

Answer:

26°

Step-by-step explanation:

An obtuse triangle is a triangle that has one obtuse angle. Obtuse angle is an angle that is greater than 90 degrees but less than 180 degrees.

An isosceles triangle is a triangle that has two equal sides and angles.  

Therefore, an obtuse isosceles triangle is a triangle with an obtuse angle and two equal sides that have two equal acute angles (angle less than 90° ).

Given:

The three angles of the triangle are given to be x°, x°  and (10x−2) = 128°. The obtuse angle is 128°, the two x° are acute angles. We are not using equation 10x − 2 since the value of the obtuse angle has been given as 128°

The sum of angles in a triangle is 180°

∴  x° + x° + 128° = 180°

2x° = 180° - 128°

2x° = 52°

x° = 52° / 2

x° = 26°

The measurement of one of the acute angles is 26°

7 0
3 years ago
HELPPPPPPPPPPPPPPPPPPPPPP
RideAnS [48]

Answer:omg I gotchu I just learned these for the letters for example would be q/1 times 2/7 because if you have one letter or number you ALWAYS put a one under it then u multiply another easy trick don’t butterfly multiply go straight across and example 8/1 (all ways add the one) times 3/4. Ok how to multiply that always go across so it would be 8x3 and 1x4 your answer should be 24/4 and simplify if needed

Step-by-step explanation:

4 0
2 years ago
Can somebody help me. Will Mark brainliest.
cricket20 [7]

Answer:

around 81.2 degrees

Step-by-step explanation:

use inverse tangent

remeber tan = O/H

divide it first

84/13

6.461538461538462

then use invese tan(tanx^{-1})

81.20258929000894

or around 81.2 degrees

4 0
3 years ago
Find the slope to the line that contains (-3,-1) (-5,5)
Alex777 [14]

Answer:

m= -3

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
5(12-8)-13+12-2(4-3)​
dem82 [27]

5(12-8)-13+12-2(4-3)

= 5(4)-13+12-2(1)

= 20-13+12-2

= 32-15

= 17

The answer is 17.

6 0
3 years ago
Read 2 more answers
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