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2 years ago

Matt said 2x-7=2(x-7) has infinitley many solitions. is he correct? Justify Matts answer or show he is correct.

Mathematics

1 answer:

Flauer [41]2 years ago

7 0

2x - 7 = 2x - 14
2x = 2x - 7.

Matt is incorrect, there are actually 0 correct answers to this equation.

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The bill for a pizza and soda was $20. You want to leave a 15% tip. What will be the total amount paid for the bill?

sukhopar [10]

Answer:

Step-by-step explanation:

20 *.15=3

20+3=23

3 0

1 year ago

A water pipe floods 50 square feet every 1/5 minute.what is the flooded area after 6 minutes

marshall27 [118]

Answer:

750sqare ft

Step-by-step explanation:

50 times 5=125

125 times 6=750

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3 years ago

In ΔEFG, EG is extended through point G to point H,angle FGH = (4x-1) m∠FGH=(4x−1) ∘ , angle GEF = (x+18) m∠GEF=(x+18) ∘ , and a

Illusion [34]

Answer:

x=346

Step-by-step explanation:

3 0

2 years ago

Read 2 more answers

The radius of a right circular cylinder is increasing at the rate of 3 ft/sec, while the height is decreasing at the rate of 6 f

goblinko [34]

Answer:

$\frac{dV}{dt}=-450\pi ft^3/sec$

Step-by-step explanation:

Let's assume

radius of cylinder as 'r'

height of cylinder as 'h'

so, we have

$\frac{dr}{dt} =3ft/sec$

$\frac{dh}{dt} =-6ft/sec$

r=15ft

h=10ft

now, we can use volume of cylinder formula

$V=\pi r^2h$

we can find derivative with respect to t

$\frac{dV}{dt}=2\pi r h\times\frac{dr}{dt} +\pi r^2\times \frac{dh}{dt}$

now, we can plug values

$\frac{dV}{dt}=2\pi (15)(10)\times3 +\pi (15)^2\times -6$

now, we can simplify it

$\frac{dV}{dt}=-450\pi ft^3/sec$

6 0

2 years ago

Critique the reasoning of others. Sally states that the equation g(x) = x2 + 3x − 10 represents a quadratic function that is the

olya-2409 [2.1K]

Answer:

Step-by-step explanation:

No, not quite. She's close.

The middle term (often called the linear term) is + which means that the absolute value of the factors must be plus.

(x + 5)(x - 3) is what should should think.

x + 5 = 0

x = - 5

x + 2 = 0

x = - 2

(x + 5)(x - 2)

x^2 - 2x + 5x - 10

x^2 + 3x - 10

3 0

2 years ago