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3 years ago

PLEASE HELP ITS URGENT. I’m not sure how to do this!! I will mark brainlist!!

Mathematics

1 answer:

elena-s [515]3 years ago

8 0

Answer:

2y+3=5y-6. (Since all sides of rhoumbus are equal)

2y-5y=-6-3

-3y=-9

y=-9/-3

y=3

I hope it helps!!

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bija089 [108]

2 and 1/4 is the answer

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3 years ago

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I need help with these two trigonometry problems.

Sloan [31]

Answer:

$B \approx 32.1\°; A \approx 39.0\°$

Step-by-step explanation:

Sine theorem: in any triangle, the ratio between a side and the sine of the opposite angle is constant

$\frac{sin\ \alpha}a = \frac{sin\ \beta}b =\frac{sin\ \gamma}c$

In our case, for the left triangle,

$\frac {sin\ 103\°}{11} =\frac{sin\ B} 6 \rightarrow sin\ B = \frac6{11} sin\ 103\°$

Time to grab a calculator and crunch numbers. Double check your calculator is in degrees and not in radians (plug in sin 30°, if you're getting 0.5 you're good) and you will get

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$sin\ A = \frac{26}{41} sin 83\° \approx 0.68 \rightarrow A \approx 39.0\°$

5 0

2 years ago

A milk bottle has radius 7cm and milk is filled upto a height

stich3 [128]

radius of bottle is 7 cm. height is 28 cm

so total milk in bottle is equal to total volum of bottle.

so volume of cylinder is = pi × r^2 × h

V = (22/7 )× 7×7×28 = 22×7×28

= 4312 cm^3

so volume of the milk before used to make tea is 4312 cm^3

now milk taken to make tea make height reduced to 20 cm.

so volume of the left milk in bottole is

= (22/7) × 7×7×20 = 22×7×20

= 3080 cm^3

so milk used for making tea = total milk before making the tea - total milk left in bottle after making the tea

= 4312 - 3080 = 1232 cm ^3

so volume of milk used

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4 years ago

Jake paints all sides except the bottom of the box length=20cm width=15cm height=12

Crazy boy [7]

Answer:

Area Painted = (2*12*15) + (2*20*12)

Step-by-step explanation:

If you imagine a box, you know that the bottom area would be found by multiplying the length by the width. Thus, the only other area you want to find are the sides of the box. I multiplied the length and the height as well as the width and the height. I multiplied that by 3 because there's two sides that are always going to be the same. I recommend you draw a picture before attempting to write an expression,

Hope this helped :)

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4 years ago

PLEASE HELP: Evaluate tan^2θ for θ = 60° 1/3 3/4 1 3

Sholpan [36]

Answer:

Step-by-step explanation:

tan 60 = root(3)

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3 years ago