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Natasha2012 [34]
3 years ago
15

of 100 children 3 quarters have pets 40 kids have a dog and 18 have a cat how many kids have other kinds of pets

Mathematics
1 answer:
vagabundo [1.1K]3 years ago
7 0

Answer:

17 kids have other kinds of pets

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Step-by-step explanation:

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True or false: the equation tan^2x+1=sec^2x
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ANSWER

True

EXPLANATION

The given trigonometric equation is:

{ \tan}^{2} x + 1 = { \sec}^{2} x

We take the LHS and simplify to arrive at the RHS.

{ \tan}^{2} x + 1 =  \frac{{ \sin}^{2} x}{{ \cos}^{2} x}  + 1

Collect LCM on the right hand side to get;

{ \tan}^{2} x + 1 =  \frac{{ \sin}^{2} x + {\cos}^{2} x}{{ \cos}^{2} x}

This implies that

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{ \tan}^{2} x + 1 =  { \sec}^{2} x

This identity has been verified .Therefore the correct answer is true.

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2 years ago
How do you workout 7x-19<16
laila [671]

Answer:

To work this problem out you would do it as if it were just a simple equation

7x-19<16 (you would first have to add 19 to both sides)

7x<35 (then you would divide by 7 to get the variable by itself)

x<5 ( you answer would then be 5)

Step-by-step explanation:

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3 years ago
Samantha works at an animal shelter. She decides to track the total number of kittens that are brought in. The equation k=4w+3 r
mel-nik [20]

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This means options C and D are false, because they say <u>the total number of kittens that have come into the shelter</u>.

w represents the number of weeks, weeks can be counted 0 weeks, first week, second week and so on, so option B is true (the domain is all whole numbers) because 0, 1, 2, 3, ... are whole numbers.

Number of weeks can't be a negative number. Since "real numbers" include negatives, therefore, we exclude option A.

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xxMikexx [17]

Answer:

1.80

Step-by-step explanation:

it very useful to understand very well

4 0
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