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saul85 [17]
3 years ago
15

I need help with question 9 please!

Mathematics
2 answers:
Aloiza [94]3 years ago
7 0
You have a right angle so you would find 90-46=44 then you work backwards:subtract 4 from 44 which is 40 then divide by 2 you will get 20 your answer is A
ankoles [38]3 years ago
3 0
The answer is A. 20 you know that the equation plus the angle that equals 46 are equal to 90 degrees so..... use the formula  
2x+4+46=90

simplify by adding 4 and 46
2x+50=90
subtract 50 from both sides
2x=40
divide each side by 2
x=20

and that's how you get your answer
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Answer:

see explanation

Step-by-step explanation:

Given

s(t) = 10t²

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(a)

s(2) = 10 × 2² = 10 × 4 = 40

s(5) = 10 × 5² = 10 × 25 = 250

(b)

s(5) - s(2) = 250 - 40 = 210

This represents the distance travelled in 3 hours

(c)

The average rate of change is measured as

\frac{s(5)-s(2)}{5-2}

= \frac{250-40}{3}

= \frac{210}{3}

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3 years ago
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nirvana33 [79]
I’d say 21 and -1 :)
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2 years ago
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3 years ago
Determine if the following scale factor would be an enlargement or reduction.<br> scale factor: 2.5
Sati [7]

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2 years ago
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VikaD [51]

Answer:

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Step-by-step explanation:

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xₙ₊₁ = xₙ - f(xₙ) / f'(xₙ)

Given;

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substitute in "-cot x" into the equation

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x₁ = 0.7

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x₂ = 0.7 + cot (0.7)

x₂ =  0.7 + 1.18724

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second iteration

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x₃ = 1.88724 - 0.32744

x₃ = 1.5598

To four decimal places = 1.5598

4 0
3 years ago
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