3 years ago

7.

Mathematics

1 answer:

Serjik [45]3 years ago

3 0

Answer:

y = −4x^2 + 4x − 3

Step-by-step explanation:

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A rectangular field that measures 32 feet by 14 feet must be increased by a

Dominik [7]

Answer:

The new dimensions of the field will be 44.8 feet by 19.6

Step-by-step explanation:

since the scale factor is 1.4, all the original dimensions are multiplied by 1.4

32 times 1.4 is 44.8 and 14 times 1.4 is 19.6

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3 years ago

Identify the phase shift of each function. Describe each phase shift ( use a phrase like 3 units to the left):

Temka [501]

ANSWER

Phase shift: 2 units right.

EXPLANATION

The given sine function is

$y = - \sin(x - 2)$

In mathematics, a horizontal shift may also be referred to as the phase shift.

This function is shifted to the right 2 units.

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3 years ago

The estimated difference of 3209 and 1893, when rounded off to the nearest ten is

almond37 [142]

Answer:

$= (3209) - (1893) \\ = 1.32 \times {10}^{3} \\ = 1320$

$\small{ \star{ \underline{ \blue{becker}}}}$

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3 years ago

Read 2 more answers

I need help with this!! What is the answer???!

Natalija [7]

Answer:

Step-by-step explanation:

Sum of interior angles of a pentagon = 540°

Therefore,

2x° +2x° + 3x° + 3x° + 10 = 540°

10x° + 10° = 540°

10x° = 540° - 10°

10x° = 530°

10x = 530

x = 530/10

x = 53

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3 years ago

Homework - Pure Year 1 - Chapter 11B

ycow [4]

Answer:

|F net| = 20.22 N

θ ≈ 19.8°

Step-by-step explanation:

F net = 15N i + 8cos(60°)N i + 8sin(60°)N j

= 15N i + 8×½N i + 8×√3/2N j

= 15N i + 4N i + 4√3N j

= 19N i + 4√3N j

|F net| = √(19²+(4√3)²) = √(361+48) = √409 ≈ 20.22N

tan(θ) = 4√3 ÷ 19 ≈ 0.36 → θ ≈ arctan(0.36) = 19.8°

5 0

2 years ago