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Zepler [3.9K]
2 years ago
8

HELP MY MOM IS GOING TO KILL ME

Mathematics
1 answer:
alex41 [277]2 years ago
6 0

Answer:

−a2+17b

Step-by-step explanation:

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0.285714 to a fraction
Blababa [14]

okay so put the decimal over 1 like this:

0.285714/1 then multiply by 10 for every number after the decimal point so if there were 2 numbers it would be 100

so 0.285714 times 1,000,000 is 287,514 and 1 times 1,000,000 is 1,000,000

so 287,514/ 1,000,000

simplified: 142,857/500,000 is your answer.



7 0
3 years ago
Work out area of ABCD
Assoli18 [71]

Answer:

Area of ABCD = 45.1 cm²

Step-by-step explanation:

From the figure attached,

Area of ABCD = Area of ΔBCD + Area of ΔABD

Area of ΔABD = \frac{1}{2}(AB)(BD)

sin(55°) = \frac{\text{Opposite side}}{\text{Hypotenuse}}

sin(55°) = \frac{AB}{BD}

AB = 10sin(55°)

AB = 8.19 cm

cos(55°) = \frac{\text{Adjacent side}}{\text{Hypotenuse}}

              = \frac{AD}{BD}

AD = 10cos(55°)

AD = 5.74cm

Area of ΔABD = \frac{1}{2}(8.19)(5.74)

                        = 23.51 cm²

Area of ΔBCD = \frac{1}{2}(\text{Base})(\text{Height})

                        = \frac{1}{2}(BD)(CE)

tan(38°) = \frac{CE}{BE}

BE = \frac{CE}{\text{tan}(38)}

Similarly, DE = \frac{CE}{\text{tan}(44)}

Since, BE + DE = 10 cm

\frac{CE}{\text{tan}(38)}+\frac{CE}{\text{tan}(44)}=10

CE(1.28 + 1.04) = 10

CE(2.32) = 10

CE = 4.31 cm

Area of ΔBCD = \frac{1}{2}(10)(4.31)

                       = 21.55 cm²

Area of ABCD = Area of ΔBCD + Area of ΔABD

                        = 21.55 + 23.51

                        = 45.06

                        ≈ 45.1 cm²

3 0
2 years ago
Gavin rolls a fair dice 30 times.<br> How many times would Gavin expect to roll a five?
Anvisha [2.4K]
6 times to expect to roll 5
5 0
2 years ago
How is synthetic division and the remainder theorem the same? How is it different? In order to get credit for this discussion yo
daser333 [38]

Answer:

No

Step-by-step explanation:

No

7 0
3 years ago
NEED HELP ASAP!!! WILL MARK BRAINLIEST!!!!!!<br>**easy**<br>What is the measure of angle ABD?​
baherus [9]
51 it’s easy just divide it then subtract you get 51
3 0
2 years ago
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