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2 years ago

FIRST RIGHT ANSWER GETS BRAINLIEST

Mathematics

1 answer:

Shtirlitz [24]2 years ago

3 0

Answer:

what's the question

Step-by-step explanation:

........

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Using coupons you spell $91 grocery shopping this is 65% of the total retail price of groceries how much would you have spent if

Andrews [41]

$140 because

$91 divided by 65 is 1.4
1.4 times 100 is 140

3 0

2 years ago

I need help from uh all..

DanielleElmas [232]

Answer:

Step-by-step explanation:

Given expression is,

$\text{cot}A=\frac{1}{2}(\text{cot}\frac{A}{2}-\text{tan}\frac{A}{2})$

To prove this identity we will take the right side of the identity,

$\frac{1}{2}(\text{cot}\frac{A}{2}-\text{tan}\frac{A}{2})=\frac{1}{2}(\frac{1}{\text{tan}\frac{A}{2}}-tan\frac{A}{2})$

$=\frac{1}{2}(\frac{1-\text{tan}^2\frac{A}{2}}{tan\frac{A}{2}})$

$=\frac{1}{2}[\frac{2(1-\text{tan}^2\frac{A}{2})}{2tan\frac{A}{2}}]$

$=\frac{1}{2}(\frac{2}{\text{tan}A} )$ [Since $\text{tan}A=\frac{2\text{tan}\frac{A}{2}}{1-\text{tan}^2\frac{A}{2}}$ ]

= cot A

Hence right side of the equation is equal to the left side of the equation.

3 0

3 years ago

Graph the following piecewise function:

zhenek [66]

Check the picture below.

notice the solid circle at -4 and 3, since it includes those points.

also notice the dashed line, though the lines keeps on going those ways, is not included in the piece-wise, since it's not part fo the domain or constraints.

5 0

3 years ago

Can you use doubling for 7 times 3

V125BC [204]

What do you mean doubling? You can add 7+7+7 which equals 21.

4 0

2 years ago

Read 2 more answers

Zaria wants you to solve this puzzle: “I am thinking of a number.

pshichka [43]

Answer:

first what you do is divide two and then for and then after you divide them together you can get your number so I'm going to show you example how to do it

Step-by-step explanation:

first divide 4 / 2 and then you can get your answer after you divide that

5 0

2 years ago