Roof55
13.02.2020 •
Mathematics
Please help me find angle B
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Ответ:
On the diagram, angle A is marked as 40°, and angle C is marked as 90°.
You can subtract those numbers from 180° to get the remaining angle.
180-40-90=50
Angle B = 50°
Ответ:
23, 5, 3
Step-by-step explanation:
Using order of operations
Multiplication is performed before addition / subtraction
(a)
5 + 2 × 3²
= 5 + 2 × 9
= 5 + 18
= 23
(b)
=
= 5
(c)
=
=
= 3