All categories

4 years ago

(a) The additive inverse of negative two thirds

Mathematics

2 answers:

Vikentia [17]4 years ago

8 0

(a) The additive inverse is found by changing the sign.

The additive inverse of -2/3 is 2/3.

(b) The absolute value is found by making the sign positive.

The absolute value of -2/3 is 2/3.

LekaFEV [45]4 years ago

6 0

A) The answer to the question is 2/3

b) the answer to the question is 2/3

You might be interested in

A cylinder has a height of 4 inches and a diameter of 18 inches. Which equation can be used to find the total surface area of th

kati45 [8]

Answer:

I believe the answer is A. For you are an as$h0le

Step-by-step explanation:

8 0

3 years ago

(x + 23) + (2x + 4) = 180 Find the value of ¨x¨

Nata [24]

$(x+23)+(2x+4)=180$

$x+23+2x+4=180$

$3x+27=180$

$3x=180-27$

$3x=153 /: 3$

$x=51$

6 0

4 years ago

Read 2 more answers

3 students wrote expressions of their dry erase boards.

kolbaska11 [484]

Answer: Students 1 and 3

Step-by-step explanation:

student 1=

- (5r+3s-1)=

-5r+3s-1=

the same answer as student 3

7 0

3 years ago

If a snowball melts so that its surface area decreases at a rate of 5 cm2/min, find the rate at which the diameter decreases whe

mixas84 [53]

Answer:

The diameter decreases at the rate of 0.0796 cm/min when the diameter is 10 cm.

Step-by-step explanation:

A snowball is spherical, so it's area is given by the following formula:

$A = 4\pi r^{2}$

The radius is half the diameter so:

$A = 4\pi (\frac{d}{2})^{2}$

$A = 4\pi \frac{d^{2}}{4}$

$A = \pi d^{2}$

If a snowball melts so that its surface area decreases at a rate of 5 cm2/min, find the rate at which the diameter decreases when the diameter is 10 cm.

We have to find $\frac{dd}{dt}$ when $\frac{dA}{dt} = -5, d = 10$

$A = \pi d^{2}$

Applying implicit differentiation:

We have to variables(A and d), so:

$\frac{dA}{dt} = 2\pi d \frac{dd}{dt}$

$-5 = 2\pi (10) \frac{dd}{dt}$

$\frac{dd}{dt} = -\frac{5}{20\pi}$

$\frac{dd}{dt} = -0.0796$

The diameter decreases at the rate of 0.0796 cm/min when the diameter is 10 cm.

6 0

4 years ago

Q # 20 please help to solve

spin [16.1K]

If submarine is at the surface (the initial position) and then dives 375 ft, the coordinate of submarine becomes -375 ft relatively to the initial position. When the submarine dives another 175 ft down, the coordinate of submarine becomes -375-175=-550 ft relatively to the initial position.

Answer: Correct choice is A.

8 0

3 years ago

​(a) The additive inverse of negative two thirds

(a) The additive inverse of negative two thirds