4 years ago

Which expression is equal to (7 times 2)times 2

Mathematics

1 answer:

Lady bird [3.3K]4 years ago

7 0

The answer is 28. 7x2=14 and then 14x2=28. Remember PEMDAS

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PLZ HELP! MY teacher is no help and I have no idea how this works.

Rainbow [258]

Answer: find x

Tan(30)=20/x

X= 20/ tan(30)

Tan(30) =0.577

X= 20/ 0.577

X=34.66

Find Y

Sin(30)=20/y

Y=20/sin(30)

Sin(30)=0.5

Y=40

Step-by-step explanation:

3 0

4 years ago

If m and n are real numbers such that 4m + n = 10, then which of the following expressions represents m?

dalvyx [7]

$4m + n = 10$

$4m = -n + 10$

$m = \dfrac{-n + 10}{4}$

or

$m = \dfrac{10 - n}{4}$

4 0

4 years ago

25,714.28571428571 to 2DP

BaLLatris [955]

25,714.29 is the correct answer I believe

6 0

3 years ago

The owner of a small restaurant bought 75 kilograms of rice. Each week, the restaurant uses 4.5 kilograms of rice.

aniked [119]

Answer:

r(t) = 75 kg - (4.5 kg/wk)w

Step-by-step explanation:

Let r(t) represent the amount of rice remaining after w weeks.

Then:

r(t) = 75 kg - (4.5 kg/wk)w

please mark as brainliest

3 0

3 years ago

What is the measure of the missing angle in the triangle below?

nirvana33 [79]

Answer:

41 degrees

Step-by-step explanation:

According to Angle Sum Property, the sum of the internal angles of a triangle is equal to 180 degrees.

Therefore,

52 + 87 + ? = 180

139 + ? = 180

? = 180 - 139

? = 41 degrees

8 0

2 years ago