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1 year ago

Which graph shows the solution to the inequality? x - 4 ≤ -1

Mathematics

2 answers:

Stels [109]1 year ago

6 0

Answer:

x ≤ 3

Step-by-step explanation:

This is the answer because I say it is

GenaCL600 [577]1 year ago

4 0

Answer:

$x -4 \leq -1\\x -4 + 4 \leq -1 + 4\\x\leq -1 +4\\x\leq +3$

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Answer:

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Step-by-step explanation:

Q7. Please see attached picture for full solution.

Q8. Let the length of a side of the square be x ft.

Applying Pythagoras' Theorem,

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Thus, the perimeter of the square is

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Q9. Equilateral triangles have 3 equal sides and each interior angle is 60°.

Since the perimeter of the equilateral triangle is 126cm,

length of each side= 126÷3 = 42 cm

The green line drawn in picture 3 is the altitude of the triangle.

Let the altitude of the triangle be x cm.

sin 60°= $\frac{x}{42}$

$\frac{ \sqrt{3} }{2} = \frac{x}{42} \\ x = \frac{ \sqrt{3} }{2} \times 42 \\ x = 21 \sqrt{3} \\ x = 36.4$

(to 3 s.f.)

Therefore, the length of the altitude of the triangle is 36.4cm.

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never [62]

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