All categories

3 years ago

Which real-world story is represented by the addition problem (–2) + (–3) = –5?

Mathematics

1 answer:

tangare [24]3 years ago

6 0

The answer is A.

If the submarine descended then it went below, and if it ascended it went above. Therefore:

"Descended 2 miles"= -2

"Then descended another 3 miles"= -3

(-2)+(-3)=-5

Adding two negatives together will give you a bigger negative so the submarine would then be 5 miles below its original location.

You might be interested in

What value of x makes this equation true <br> 2x+8=3x+4

Alona [7]

Answer:

2x4=8

8+8=16

3×4=12

12+4=16

3 0

3 years ago

Can someone help me with this?

Vinil7 [7]

U can refer to the picture that I’ve attach below

8 0

1 year ago

Which expression can be placed on the right side of the equals sign to form an equation 2+33=

qaws [65]

Answer: 33+2, 32+3, 31+4, 30+5, 29+6, 28+7, 27+8, 26+9, 25+10, 24+11, 23+12, 22+13, 21+14, 20+15, 19+16, 18+17, 17+18, 16+19, 15+20, 14+21, 13+22, 12+23, 11+24, 10+25, 9+26, 8+27, 7+28, 6+29, 5+30, 4+31, 3+32, 1+34.

Step-by-step explanation: Plz give e brainliest

5 0

3 years ago

Work out the volume of the shape

pashok25 [27]

Answer:

$\large\boxed{V=\dfrac{1,421\pi}{3}\ cm^3}$

Step-by-step explanation:

We have the cone and the half-sphere.

The formula of a volume of a cone:

$V_c=\dfrac{1}{3}\pi r^2H$

r - radius

H - height

We have r = 7cm and H = (22-7)cm=15cm. Substitute:

$V_c=\dfrac{1}{3}\pi(7^2)(15)=\dfrac{1}{3}\pi(49)(15)=\dfrac{735\pi}{3}\ cm^3$

The formula of a volume of a sphere:

$V_s=\dfrac{4}{3}\pi R^3$

R - radius

Therefore the formula of a volume of a half-sphere:

$V_{hs}=\dfrac{1}{2}\cdot\dfrac{4}{3}\pi R^3=\dfrac{2}{3}\pi R^3$

We have R = 7cm. Substitute:

$V_{hs}=\dfrac{2}{3}\pi(7^3)=\dfrac{2}{3}\pi(343)=\dfrac{686\pi}{3}\ cm^3$

The volume of the given shape:

$V=V_c+V_{hs}$

Substitute:

$V=\dfrac{735\pi}{3}+\dfrac{686\pi}{3}=\dfrac{1,421\pi}{3}\ cm^3$

7 0

3 years ago

Sally identified the terms of the expression 9a + 4b - 18 as 9, 4, and 18. Explain her error.

nordsb [41]

A term is a single mathematical expression. It may be a single number (positive or negative), a single variable (a letter), several variables multiplied but never added or subtracted. Some terms contain variables with a number in front of them. The number in front of a term is called a coefficient.

So the terms are 9a, 4b, and 18.

hope it helps!

3 0

3 years ago

Read 2 more answers