Answer:
First of all, we can see that this shape have 4 90° angles.
Secondly, since x = 5 we have:
3 × 5 -2 = 15 - 2 = 13 (cm)
And: 5 + 8 = 13 (cm)
=> The two adjacent sides that make up the angle is equal to each other
So this shape is a quare.
=> This shape is a square.
Step-by-step explanation:
Answer:
The distance between the two boats after 2.5 hours is 57 m.
Step-by-step explanation:
The distance covered by each boat after 2.5 hours are:
speed =
distance = speed x time
For boat A, speed = 14 km/h and time = 2.5 hrs.
So that,
distance = 14 x 2.5
= 35 km
For boat B, speed = 18 km/h and time = 2.5 hrs.
So that,
distance = 18 x 2.5
= 45 km
The distance between the two boats after travelling 2.5 hours can be determined by applying the cosine rule. Let the distance be represented by x, so that:
= + - 2bc Cos A
= + - 2(45 x 35) Cos
= 2025 + 1225 - 3150 (0)
= 3250
x =
= 57.0088
x = 57.0 m
The distance between the two boats after 2.5 hours is 57 m.
Answer:
-42700
Step-by-step explanation:
- you solve it
Answer:
Remove parentheses
2 * 5 ^x - 1
Step-by-step explanation:
i think ..
1) Value of x is: x= 5.39
2) Value of w = 125
3) Value of a = 74.21
Step-by-step explanation:
1. x + 6.8 = 12.19. What is x
We need to find the value of x
Adding -6.8 on both sides of the equation
So, value of x is: x= 5.39
2) 0.05w = 6.25. How do I answer this?
We need to find value of w
Dividing both sides of equation by 0.05
So, Value of w = 125
3) a/9.05 = 8.2. What is a?
We need to find value of a
Multiplying both sides by 9.05
So, Value of a = 74.21
Keywords: Solving Expressions
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