2 years ago

Please help.

Mathematics

1 answer:

ryzh [129]2 years ago

3 0

Answer:

E and D

Step-by-step explanation:

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A counterexample for sinytany=cosy is 0 degrees<br> true or false?

Talja [164]

Answer:

False

sin (y) / cos (y) = cos (y)

cos (y) could be any value from -1 to 1.

Step-by-step explanation:

7 0

3 years ago

How do I do this?<br> Im stuck on what to do

Nastasia [14]

CD and DE are equal distance so their equations are equal:
2x+7 = 4(x-3)
2x+7 = 4x-12
Subtract 2x from both sides
7 = 2x-12
Add 12 to both sides
19 = 2x
9.5 = x
Now that u have x just plug it into the equation for DE
4(9.5-3)
38-12
26 is the answer

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3 years ago

Read carefully And choose the name of the student who made the correct statement.

dimaraw [331]

Answer:

Sterling made the correct statement.

Step-by-step explanation:

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2 years ago

Graziano predicted that he would sell 420 tablecloths. He actually sold 520 tablecloths. What are the values of a and b in the t

max2010maxim [7]

Answer:

A=100/520;b=19.2%

Step-by-step explanation:

8 0

3 years ago

The table shows the battery life of four different mobile phones:

Pie

Answer:

A 20

Step-by-step explanation:

Given

Phone Battery Life (hours)

A 20

B 25

C 10

D 18

8.45% of the battery life of each mobile phone is used in a day by a typical user

Calculating Hours of battery life in a day for each mobile

A 20

Battery life for A = $\frac{8.45}{100}\times 20 = 1.69$ hours

B 25

Battery life for B = $\frac{8.45}{100}\times 25 = 2.11$ hours

C 10

Battery life for C = $\frac{8.45}{100}\times 10 = 0.845$ hours

D 18

Battery life for D = $\frac{8.45}{100}\times 18 = 1.52$ hours

Therefor Mobile phone A 20 uses a total of 1.69 hours of battery life in a day

4 0

3 years ago