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3 years ago

Philip wants to know the weight of a book to within half a gram. His weighing scales only weigh to within 10 grammes.

Mathematics

1 answer:

Andrei [34K]3 years ago

8 0

Answer:

f(x) = x2 – p(x + 1) – c, then (α + 1)(β + 1)f(x) = x2 – p(x + 1) – c, then (α + 1)(β + 1)f(x) = x2 – p(x + 1) – c, then (α + 1)(β + 1)f(x) = x2 – p(x + 1) – c, then (α + 1)(β + 1)f(x) = x2 – p(x + 1) – c, then (α + 1)(β + 1)f(x) = x2 – p(x + 1) – c, then (α + 1)(β + 1)

Step-by-step explanation:

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Alex777 [14]

Energy is the correct answer

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2 years ago

PLEASE HELP QUICK!! WILL OFFER 100 POINTS TO THE FIRST ONE THAT ANSWERS

Reil [10]

Given

$x+1 = \sqrt{7x+15}$

We have to set the restraint

$x+1\geq 0 \iff x \geq -1$

because a square root is non-negative, and thus it can't equal a negative number. With this in mind, we can square both sides:

$(x+1)^2=7x+15 \iff x^2+2x+1=7x+15 \iff x^2-5x-14 = 0$

The solutions to this equation are 7 and -2. Recalling that we can only accept solutions greater than or equal to -1, 7 is a feasible solution, while -2 is extraneous.

Similarly, we have

$x-3 = \sqrt{x-1}+4 \iff x-7=\sqrt{x-1}$

So, we have to impose

$x-7\geq 0 \iff x \geq 7$

Squaring both sides, we have

$(x-7)^2=x-1 \iff x^2-14x+49=x-1 \iff x^2-15x+50 = 0$

The solutions to this equation are 5 and 10. Since we only accept solutions greater than or equal to 7, 10 is a feasible solution, while 5 is extraneous.

7 0

3 years ago

A 2-yard piece of ribbon costs $32.04. What is the price per foot?

Sidana [21]

Answer:

$5.34 per food

Step-by-step explanation: There are 6 feet in 2 yards.

I take 32.04 and divide it by 6 because there are 6 feet.

3 0

3 years ago

May someone help me with this :)

Bezzdna [24]

Answer:

6 roll for 8.89

Step-by-step explanation:

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8 0

3 years ago

A flying disc has a radius of 10 inches. What is the area of one side of the flying disc to the nearest square inch? Use 3.14 as

oksano4ka [1.4K]

<u>Answer:</u>

The area of one side of a disc is 314 square inches

<u>Explanation:</u>

Given the radius of the disc is 10 inches

The disc is in circular shape and the area of a circle is determined by

A = $\pi r^2$ , where

A is the area and r is the radius and π = 3.14

Substituting values in the formula,

A = $3.14 \times(10)^2$

A = $3.14 \times100$ = 341 sq. inches

Therefore, the area of one side of a disc is 314 square inches

8 0

3 years ago