2 years ago

Need help on part A Please

Mathematics

2 answers:

Sonbull [250]2 years ago

7 0

Answer:

Step-by-step explanation:

olya-2409 [2.1K]2 years ago

5 0

Answer:

DAM DANIEL

Step-by-step explanation:

Im sorry I had to get that off my chest

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#10 using the right angle below find the cosine of angle B.

Contact [7]

$\cos B = \frac{\text{adjacent side}}{\text{hypotenuse}} = \frac{5\sqrt{2}}{10} = \frac{\sqrt{2}}{2}=0.707$

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3 years ago

The range of the data set is 32. If the largest number in the set is 50, what is the smallest number?

butalik [34]

Range is the difference beteeen the smallest and largest numbers in a set. Therefore, 50-32=18

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3 years ago

Find the y-intercept of the line on the graph.<br> Enter the correct answer.

klio [65]

Answer:

y-intercept = -1

Step-by-step explanation:

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3 years ago

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Find all solutions in the interval [0,2π) of the equation.

Sauron [17]

Step-by-step explanation:

2sin(x)cos(x) - sin(x) + 2cos(x)-1= 0

<=> sinx( 2cosx -1) + ( 2cosx -1) =0

<=> (sinx +1) + ( 2cosx-1)=0

<=> sinx=-1 or cosx= 1/2

+) sinx=1 => x= pi/2 + k×2pi

+)cosx=1/2 => x= pi/3+ k×2pi or x=-pi/3 + k×2pi

x€ [0,2pi] => x= pi/2, pi/3.

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2 years ago

(b) Her friend Hannah gets 70% of the 140 marks available in the exam.

Lisa [10]

$\huge\fbox{Answer ☘}$

number of marks available = 140

percentage secured = 70%

therefore marks secured =

$70\% \: \: of \: 140 \\\\ =>\frac{70}{100} \times 140 \\ \\ = > 98 \: marks$

hope helpful~

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2 years ago