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2 years ago

Help, please! ASAP!!!

Mathematics

1 answer:

Diano4ka-milaya [45]2 years ago

5 0

Answer:

Angle A is 77°

x = 3

AC = 13

Step-by-step explanation:

Angles A, B and C MUST add up to 180°. If Angle C is 26°, then the sum of A and B and 26° = 180°. In other words, A+B = 180° - 26° = 154.

Since A and B are equal, A = B = 154°/2 = 77°

Since this triangle is isosceles, sides AC and BC are equal. Thus,

7x - 8 = 3x + 4, or

4x = 12. Then x = 3.

Since AC = 7x - 8, and x = 3, AC = 7(3) - 8 = 21 - 8 = 13

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umka2103 [35]

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Add 36 to both sides:

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2 years ago

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200-[(50-4)×3+5] <img src="https://tex.z-dn.net/?f=200%20-%20%28%2850%20-%204%29%20%5Ctimes%203%20%2B%205%29" id="TexFormula1

lbvjy [14]

200 - [ ( 50 - 4 ) × 3 + 5 ]
= 200 - [ 46 × 3 + 5 ]
<Put brackets around the 2 number that enclose the times sign as a reminder to do that first>
= 200 - [ ( 46 × 3 ) + 5 ]
= 200 - [ 138 + 5 ]
= 200 - (143)
= 57

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3 years ago

Help, please! ASAP!!!​

Help, please! ASAP!!!