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3 years ago

Which function best models the data? X = 1 , 2.5 , 3 , 3.5 , 4 Y = 66, 70 , 81 , 92, 97

Mathematics

1 answer:

OleMash [197]3 years ago

6 0

Answer:

i can help you one sec

Step-by-step explanation:

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Determine the expression that shows a difference of perfect squares and factor it, showing work.

lara31 [8.8K]

Answer is 1st option

16x²-81

(4x)² - 9²

Thus it is the difference of squares of 4x and 9

Factorising (4x)² - 9² , we would get:

(4x + 9)(4x - 9)

As a² - b² = ( a + b)(a - b)

6 0

3 years ago

The ratio of the corresponding side lengths of two similar iPhones is 4 : 3. The area of the larger iPhone is 8 square inches. W

ollegr [7]

Answer:

The area of the smaller iPhone is $4.5in^2$

Step-by-step explanation:

It was given that the ratio of the corresponding side lengths of two similar iPhones is 4 : 3.

The scale factor that can be used to calculate the corresponding sides of the bigger iPhone, when the length of the smaller iPhone is known is

$k=\frac{4}{3}$

The scale factor for the area is

$k=\frac{16}{9}$

Let the area of the smaller iPhone be S.

Then $\frac{16}{9}\times S=8$

Then $S=8\times \frac{9}{16}$

Then $S=4.5in^2$

5 0

3 years ago

Can someone plz help me ASAP

Andrews [41]

Day 3 is double than day two judging by hours baked... it's 96 cookies

5 0

3 years ago

Please help me solve this

Ira Lisetskai [31]

I’m sorry I do not know the other person was rude

6 0

3 years ago

Solve the equation.<br>-Эх + 1 = -x+ 17

makkiz [27]

Answer:

x = -8. solve by balancing the equation.

Step-by-step explanation:

-2x = 16

x = -8

5 0

4 years ago