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3 years ago

10

Please please need help on this one

1 answer:

BigorU [14]3 years ago

6 0

Answer:

Y=-6x

Step-by-step explanation:

Choose two points from the graph (0,0) and (1,-6)

Average Rate of Change= (y2-y1)/(x2-x1)

(-6-0)/(1-0)=-6/1=-6

y=-6x+b

0=-6(0)+b

0=0+b

0=b

Y=-6x+0

Y=-6x

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Your total after tax is $30.12
A 20% tip is approximately $5.50 ($5.67)

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3 years ago

Find the product of z1 and z2, where z1 = 7(cos 40° + i sin 40°) and z2 = 6(cos 145° + i sin 145°).

Oduvanchick [21]

For two complex numbers $z_1=re^{i\theta}=r(\cos\theta+i\sin\theta)$ and $z_2=se^{i\varphi}=s(\cos\varphi+i\sin\varphi)$ , the product is

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3 0

3 years ago

Read 2 more answers

(4x2 – 6x + 2) + (-5x2 + 6x – 6)

lys-0071 [83]

$(4*2-6x+2)+(-5x2+6x-6)$
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$8-6x+2-10+6x-6$
$\not 10-6x-\not10+6x-6$
$-6x+6x-6$
$-6$
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3 years ago

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3 years ago

Dylan has a bank that sorts coins as they are dropped into it. A panel on the front displays the total number of coins inside as

vesna_86 [32]

Answer:

1). System of equations- D + Q = 90 and D + 2.5Q = 175.50

2). There are 33 dimes and 57 quarters in the bank.

Step-by-step explanation:

Dylan has a bank that sorts coins as they are dropped in it.

A panel shows the total number of coins inside as well as the total value of these coins.

Let the number of dimes in the bank = D

and the number of quarters in the bank = Q

If the panel shows total number of coins = 90

Then the equation will be

D + Q = 90 -------(1)

And the panel displays the amount of the coins = $17.55

Then equation will be

0.10D + 0.25Q = 17.55 [1 Dime = $0.10 and 1 quarter = $0.25]

D + 2.5Q = 175.50 ------------(2)

Now we subtract equation (1) form equation (2)

D + 2.5Q - (D + Q) = 175.50 - 90

D + 2.5Q - D - Q = 85.5

1.5Q = 85.5

Q = $\frac{85.5}{1.5}$

= 57

By putting Q = 57 in the equation (1)

D + 57 = 90

D = 90 - 57 = 33

Therefore, there are 33 dimes and 57 quarters in the bank.

4 0

3 years ago