Two times a number plus one is at least seven
2 answers:
Answer:
Hi, There! my name is Jay And I'm here to help!
<h2>Question</h2>Two times a number plus one is at least seven
<h2>Answer</h2>x ≥ 3 would be correct
- <em>all values of x which are 3 or above can be used</em>
Step-by-step explanation:
For this Question, your going to use Easy multiplication and Addition Skills
your equation is going to look like this ↓
So we have to determine what x Is
Since we have figured out what is Time to Add it all together
Therefore, I hope this helps!
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Answer:
AB = 13.89
Measure of angle A = 59.74°
Measure of angle B = 30.26°
Step-by-step explanation:
The given parameters are;
∠C = 90°
AC = 7
BC = 12
Part 1
Hence, the question has the dimensions of the two adjacent sides of the right angle (angle 90°)
From Pythagoras theorem, we have;
A² = B² + C²
Where, A is the opposite side to the right angle, hence;
In the ΔABC,
AB ≡ A
Therefore;
AB² = AC² + BC² = 7² + 12² = 193
∴ AB = √193 = 13.89
Part 2
∠A is the side opposite side BC such that by trigonometric ratios
∴ ∠A = Arctan(1.714) or tan⁻¹(1.714) = 59.74°
Part 3
∠B is found from knowing that the sum of the angles in a triangle = 180°
∴ ∠A + ∠B + ∠C = 180° which gives
59.74° + 90° + ∠B = 180°
Hence, ∠B = 180° - (59.74° + 90°) = 180° - 149.74° = 30.26°.