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3 years ago

A table of values of a linear function is shown below.

Mathematics

1 answer:

alisha [4.7K]3 years ago

4 0

I don't ever understand this !

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If RT = 6 and RS = 9, then RX = A - sqrt(54) B - 13.5 C - 7.2 D - 4

wolverine [178]

Answer:

Option D RX=4 units

Step-by-step explanation:

we know that

In the right triangle RTS

The cosine of angle TRS is equal to

cos(TRS)=RT/RS

substitute

cos(TRS)=6/9 -----> equation A

In the right triangle RTX

The cosine of angle TRX is equal to

cos(TRX)=RX/RT

substitute

cos(TRX)=RX/6 -----> equation B

∠TRS=∠TRX -----> is the same angle

Match equation A and equation B

6/9=RX/6

RX=6*6/9=4 units

5 0

3 years ago

Which polynomial expression represents a sum of cubes? (6 – s)(s2 + 6s + 36) (6 + s)(s2 – 6s – 36) (6 + s)(s2 – 6s + 36) (6 + s)

Nadusha1986 [10]

Answer:

Option 3 is correct that is $(6+s)(s^2-6s+36)$

Step-by-step explanation:

We have general formula for sum of cube which is

$a^3+b^3=(a+b)(a^2+b^2-ab)$

Here, we have a=s and b=6

on substituting the values in the formula we will get

$6^3+s^3=(6+s)(s^2+6^2-6s)$

After simplification we will get

$6^3+s^3=(6+s)(s^2+36-6s)$

After rearranging the terms we will get

$6^3+s^3=(6+s)(s^2-6s+36)$ which exactly matches option 3 in the given options.

Therefore, option 3 is correct that is $(6+s)(s^2-6s+36)$

4 0

4 years ago

Read 2 more answers

Sally is making a

kogti [31]

Answer:

784

Step-by-step explanation:

you take the 49 and times is by 16

there are 4 sides

7 0

3 years ago

Andre earns $165 for each digital projector that she sells if she works five days a week for 11 hours each day and sales 12 digi

aksik [14]

(165*12)/5*11 = AHW (average hourly wage)

1980/55 = AHW

36 = AHW

$36 is her average hourly wage.

8 0

4 years ago

Read 2 more answers

What is the completely factored form of f(x) = x^3-7x^2 2x +4?

Roman55 [17]

The answer is (x-1) (x^2-6x-4)

5 0

3 years ago