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3 years ago

Can you please help me with Questions #18-22 on this Math Worksheet

Mathematics

1 answer:

CaHeK987 [17]3 years ago

3 0

21. 4x+4y
22. 16 girls

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Find the inverse for each relation:

Neporo4naja [7]

Answer:

{(-2,1),(3,2),(3,3),(2,4)}
{(2,4),(1,5),(0,6),(-1,7)}

6 0

3 years ago

Complete the input-output table for the linear function y = 3x.

andrey2020 [161]

Answer:

A= -6

B= 6

C= 9

Step-by-step explanation:

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4 years ago

Which inequality does the graph below represent?

Dima020 [189]

Answer:

A. $y\le2x^2-8x+3$

Step-by-step explanation:

The given parabola has vertex at (2,-5).

The equation of this parabola in vertex form is given by:

$y=a(x-h)^2+k$ , where (h,k)=(2,-5) is the vertex of the parabola.

We substitute the values to get:

$y=a(x-2)^2-5$

The graph passes through; (0,3).

$3=a(0-2)^2-5$

$\implies 3+5=4a$

$\implies 8=4a$

$\implies a=2$

Hence the equation of the parabola is

$y=2(x-2)^2-5$

We expand this to get:

$y=2x^2-8x+8-5$

$y=2x^2-8x+3$

Since the outward region was shaded, the corresponding inequality is

$y\le2x^2-8x+3$

The correct answer is A

7 0

4 years ago

Solve . 3/27 = w/54

WINSTONCH [101]

$\frac{3}{27}=\frac{w}{54}$ Multiply 54 to both sides to get "w" by itself

$(54)\frac{3}{27}=\frac{w}{54}(54)$

$\frac{162}{27} =w$

6 = w

6 0

3 years ago

Read 2 more answers

6. The value of (tan 1° tan2º tan 3º ... tan 89°) is

Thepotemich [5.8K]

Answer:

Step-by-step explanation:

Using the trigonometric identities

tan(90 - x) = cotx , cotx = $\frac{1}{tanx}$

Given

tan1tan2tan3....................... tan87tan88tan89

= tan1tan2tan3............... tan(90-3)tan(90-2)(tan90 - 1)

= tan1tan2tan3.............. cot3cot2cot1

= tan1cot1tan2cot2tan3cot3 ........................

= 1 × 1 × 1 ×....................... × 1

= 1

4 0

3 years ago