3 years ago

Can someone please help me with my math homework?

1 answer:

8 0

Where’s the picture

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Anvisha [2.4K]

Answer:

$\large\boxed{D.\ 12x^2-29x+14}$

Step-by-step explanation:

Use FOIL: <em>(a + b)(c + d) = ac + ad + bc + bd</em>

$(3x-2)(4x-7)=(3x)(4x)+(3x)(-7)+(-2)(4x)+(-2)(-7)\\\\=12x^2-21x-8x+14\qquad\qquad\text{combine like terms}\\\\=12x^2+(-21x-8x)+14=12x^2-29x+14$

7 0

3 years ago

Ad libitum [116K]

390625

^if that’s what you meant in the picture cause your question was confusing

5 0

3 years ago

GaryK [48]

Answer:

10.7 m

Step-by-step explanation:

Given that,

The speed of a sound wave, v = 6,420 m/s

The frequency of the wave, f = 600 Hz

We need to find the wavelength of the wave. We can find it using the below relation as follows :

$v=f\lambda\\\\\lambda=\dfrac{v}{f}\\\\\lambda=\dfrac{6420}{600}\\\\\lambda=10.7\ m$

So, the wavelength of the sound wave is equal to 10.7 m.

4 0

3 years ago

Karolina [17]

Well a right angle is 90° so all u have to do is take 10° away from that

5 0

3 years ago

spin [16.1K]

A box and whisker plot

6 0

3 years ago