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2 years ago

SOMEONE PLS HELP THIS MAKES NO SENSE

Mathematics

2 answers:

FinnZ [79.3K]2 years ago

5 0

Answer:

Step-by-step explanation:

A/B would just change location not change size. C would be getting smaller. D is the only answer where the Triangle JKL would get larger.

abruzzese [7]2 years ago

3 0

I think it is B, since x goes right 4.5 times and y goes up 3 times.

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Help pls hurry this test is timed what’s 1+1

larisa [96]

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Step-by-step explanation:

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3 years ago

Which equation is represented by the table?

Fantom [35]

The answer is C.

(0, 3)

y = x + 3

3 = 0 + 3

3 = 3

(1, 4)

y = x + 3

4 = 1 + 3

4 = 4

(2, 5)

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2 years ago

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Can somebody please help me asap

Olenka [21]

The slope is 2/3 and the y intercept is -3

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2 years ago

If tanA=a <br>then find sin4A-2sin2A/ sin4A+2sin2A

anygoal [31]

Answer:

The value of the given expression is

$\frac{sin4A-2sin2A}{sin4A+2sin2A}=-a^2$

Step by step Explanation:

Given that $tanA=a$

To find the value of $\frac{sin4A-2sin2A}{sin4A+2sin2A}$

Let us find the value of the expression :

$\frac{sin4A-2sin2A}{sin4A+2sin2A}=\frac{2cos2Asin2A-2sin2A}{2cos2Asin2A+2sin2A}$ ( by using the formula $sin2A=2cosAsinA$ here A=2A)

$=\frac{2sin2A(cos2A-1)}{2sin2A(cos2A+1)}$

$=\frac{(cos2A-1)}{(cos2A+1)}$

$=\frac{(-(1-cos2A))}{(1+cos2A)}$ (using $sin^2A+cos^2A=1$ here A=2A)

$=\frac{-(sin^2A+cos^2A-(cos^2A-sin^2A))}{sin^2A+cos^2A+(cos^2A-sin^2A)}$ (using $cos2A=cos^2A-sin^2A$ here A=2A)

$=\frac{-(sin^2A+cos^2A-cos^2A+sin^2A)}{sin^2A+cos^2A+(cos^2A-sin^2A)}$

$=\frac{-(sin^2A+sin^2A)}{cos^2A+cos^2A}$

$=\frac{-2sin^2A}{2cos^2A}$

$=-\frac{sin^2A}{cos^2A}$

$=-tan^2A$ ( using $tanA=\frac{sinA}{cosA}$ here A=2A )

$=-a^2$ (since tanA=a given )

Therefore $\frac{sin4A-2sin2A}{sin4A+2sin2A}=-a^2$

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3 years ago

A wedding planner uses 72 ivy stems for 18 centerpieces when she arrives at the venue she realizes she will only need 16 centerp

beks73 [17]

Answer:

64 ivy stems

Step-by-step explanation:

To solve this problem we can use rule of three:

Firstly we had 72 ivy stems to use in 18 centerpieces, and know we have 16 centerpieces and want to know how many ivy stems we need to use, so:

18 centerpieces -> 72 ivy stems

16 centerpieces -> X ivy stems

18/16 = 72/X

X = 16*72/18 = 64

He needs to use now 64 ivy stems to maintain the ratio.

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3 years ago

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SOMEONE PLS HELP THIS MAKES NO SENSE​

SOMEONE PLS HELP THIS MAKES NO SENSE