Acertain triangle has two 45 angles. what type of triangle is it?
a. acute scalene
b. right scalene
c. right isosceles
d. acute isosceles

C. Right isosceles

Step-by-step explanation:

In Acute scalene triangle, all angles are acute ( less than 90 degrees ) and different,

In Right scalene triangle, two angles are acute and different, while, the third angle is of 90°.

In Right isosceles triangle, two angles are acute and equal, while, the third angle is of 90°.

In Acute isosceles, all angles are acute in which any two angles are equal.

Now, given,

The two angle of the triangles are 45° and 45°,

Let x be the third angle,

⇒ x + 45° + 45° = 180°

⇒ x + 90° = 180°

⇒ x = 90°

Hence, the angles of given triangle are 45°, 45° and 90°,

By the above definitions,

It is clear that, given triangle is right isosceles.

Option C is correct.

37/3

step-by-step explanation:

step 1: simplify both sides of the equation.

7x+8(x+

1

4

)=3(6x−9)−8

7x+(8)(x)+(8)(

1

4

)=(3)(6x)+(3)(−9)+−8(distribute)

7x+8x+2=18x+−27+−8

(7x+8x)+(2)=(18x)+(−27+−8)(combine like terms)

15x+2=18x+−35

15x+2=18x−35

tep 2: subtract 18x from both sides.

15x+2−18x=18x−35−18x

−3x+2=−35

step 3: subtract 2 from both sides.

−3x+2−2=−35−2

−3x=−37

step 4: divide both sides by -3.

−3x

−3

=

−37

−3

x=

37

3