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2 years ago

Find the circumference of the circle. Round your answer to two decimal places if necessary 4cm

Mathematics

1 answer:

ratelena [41]2 years ago

7 0

Answer:

I think its 12.56

Step-by-step explanation:

Multiply 4 and 3.14(thats pi)

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How many solutions does the following equation haves? -3x+9-2x=-12-5x

Mashcka [7]

Answer:

no solution

Step-by-step explanation:

-3x+9-2x=-12-5x\

-5x+5x=-12-9

0=-21

which is impossible.

4 0

3 years ago

A piece of furniture has a retail price of $3,200 and is on sale at a 30% discount. how much money will be saved if the piece of

d1i1m1o1n [39]

.30 × 3,200 = 960

$960 will be saved

6 0

2 years ago

3. You want to leave a tip for a meal that

Rasek [7]

Answer:

17%

Step-by-step explanation:

3/17.95 = 0.167

0.167 × 100 = 16.7 *rounding to 17

12.95 × 0.17 = 3.0515

5 0

3 years ago

Find the values of the sine, cosine, and tangent for ZA.<br><br> (TOP OF TRIANGLE IS (A))

Sloan [31]

$\bigstar\:{\underline{\sf{In\:right\:angled\:triangle\:ABC\::}}}\\\\$

AC = 7 m
BC = 4 m

⠀⠀⠀

$\bf{\dag}\:{\underline{\frak{By\:using\:Pythagoras\: Theorem,}}}\\\\$

$\star\:{\underline{\boxed{\frak{\purple{(Hypotenus)^2 = (Perpendicular)^2 + (Base)^2}}}}}\\\\\\ :\implies\sf (AB)^2 = (AC)^2 + (BC)^2\\\\\\ :\implies\sf (AB)^2 = (AB)^2 = (7)^2 = (4)^2\\\\\\ :\implies\sf (AB)^2 = 49 + 16\\\\\\ :\implies\sf (AB)^2 = 65\\\\\\ :\implies{\underline{\boxed{\pmb{\frak{AB = \sqrt{65}}}}}}\:\bigstar\\\\$

⠀⠀⠀⠀━━━━━━━━━━━━━━━━━━━━━

☆ Now Let's find value of sin A, cos A and tan A,

⠀⠀⠀

sin A = Perpendicular/Hypotenus = $\sf \dfrac{4}{\sqrt{65}} \times \dfrac{\sqrt{65}}{\sqrt{65}} = \pink{\dfrac{4 \sqrt{65}}{65}}$

⠀⠀⠀

cos A = Base/Hypotenus = $\sf \dfrac{7}{\sqrt{65}} \times \dfrac{\sqrt{65}}{\sqrt{65}} = \pink{\dfrac{7 \sqrt{65}}{65}}$

⠀⠀⠀

tan A = Perpendicular/Base = ${\sf{\pink{\dfrac{4}{7}}}}$

⠀⠀⠀

$\therefore\:{\underline{\sf{Hence,\: {\pmb{Option\:A)}}\:{\sf{is\:correct}}.}}}$

4 0

2 years ago

Please need help on this

ser-zykov [4K]

Answer: In my answer I got 9 because the formula to find the area it would be A=1/2b*h

Step-by-step explanation: How would you do this?

Well we know that the base equals 6 we have heighth so we would have to do 1.5*6 and that would give us 9 but if we round it would be 10 because 9 is closer to 10 than it is to 0.

thanks :)

4 0

3 years ago