3 years ago

welp Can i 'ave a bit of help, please?

Mathematics

2 answers:

slamgirl [31]3 years ago

8 0

Answer:

3^2

Step-by-step explanation:

You add the exponents when you multiply

Then you subtract them since you divided them.

Nastasia [14]3 years ago

5 0

Answer:

Step-by-step explanation:

3^8=6561

3^4=81

3^2=9

3^8=6561

so... 6561*81/9*6561 equals nine so your answer is 9.

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One of the legs of a right triangle measures 4 cm and its hypotenuse measures 18 cm. Find the measure of the other leg. If neces

Aleks04 [339]

Answer:

√308 or 17.5

Step-by-step explanation:

c^2=a^2+b^2

c^2-a^2=b^2

Substitute

18^2-4^2=b^2

324-16=b^2

b^2=308

b=√308 or b=17.5

7 0

3 years ago

C/4-5=4<br> btw c is over 4.<br> PLEASE HELP THE FIRST ANSWER WILL GET BRAINLIEST ANSWER!!!!

ValentinkaMS [17]

4>c/-1=4

The answer seems impossible to me but this is the closest I got.

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4 years ago

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3 years ago

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mojhsa [17]

Answer:

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Step-by-step explanation:

5 0

4 years ago

Find all the missing elements:

pshichka [43]

Answer:

C = 21.78 and a= 8.88

Step-by-step explanation:

Here, sides b=7 and c=3

Also, Angle B=60

Angle B is between side c and a

It can be solve by cosine rule and sin rule

sin rule says,

$\frac{a}{sinA} = \frac{b}{sinB} = \frac{c}{sinC} \\ \frac{a}{sinA} = \frac{7}{sin60} = \frac{3}{sinC} \\ \frac{7}{sin60} = \frac{3}{sinC} \\ sinC = \frac{3}{7} \: sin60 = 0.3711537445 \\ \\ C = 21.78$

cosine rule says,

${a}^{2} = {b}^{2} + {c}^{2} + 2bc \: cos(B) \\ {a}^{2} = {7}^{2} + {3}^{2} + 2(7)(3) \: cos(60) \\ {a}^{2} = 49 + 9 + \:21 = 79 \\ a = 8.88$

7 0

3 years ago

*welp* Can i 'ave a bit of help, please?

welp Can i 'ave a bit of help, please?