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Scorpion4ik [409]

3 years ago

10

Which real-world story is represented by the addition problem (–2 1/2) + (–3 1/4) = –5 3/4?

1 answer:

allochka39001 [22]3 years ago

4 0

Answer:

A

Step-by-step explanation:

A is the correct answer because the equation matches option A.

(-2 1/2) + (-3 1/4)

The minus sign in -2 1/2 shows that the submarine descended and then descended again with the addition sign. Though the addition sign can mean that it ascended its incorrect.

With the equation in hand, we can prove that option A is correct.

If the submarine descended 2 1/2 miles then here must be a minus sign next to the 2 1/2. But if it ascended then there would've been an addition sign to show that it ascended. The other value - 3 1/4 also shows that it ascended with the help of the addition sign.

Ascends - values increase from smallest to highest.

Descends - values decrease from highest to smallest.

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Gene starts from home and travels 3 miles north to the shopping mall. From the shopping mall, he travels 2 miles west to the lib

Alex73 [517]

Answer: The largest angle formed during his trip is at the mall between his home and the library.

Step-by-step explanation:

Hi, since the situation forms a right triangle (see image attached) the angle formed between his home and the library is 90°.

The sum of the interior angles of a right triangle is 180°, and the right angle (90°)is the largest angle formed.

So, the largest angle formed during his trip is at the mall between his home and the library.

Feel free to ask for more if needed or if you did not understand something.

7 0

3 years ago

Read 2 more answers

the junior class has 50 students. twenty-five students take french, 15 take latin, and 10 take both. if a student is chosen at r

ivann1987 [24]

P(F) = 0.5
P(L) = 0.3
$P(F\cap L)=0.2$
$P(F\cap L')=0.5-0.2=0.3$
$P(F'\cap L)=0.3-0.2=0.1$
$P(F'\cap L')=1-0.3-0.2-0.1=0.4$

3 0

2 years ago

What is the number of real solutions?

Yanka [14]

There is no real solution

5 0

2 years ago

Read 2 more answers

Question 1: Which equation shows p(x)=x^6−1 factored completely over the integers? (Hint: You will need to use more than one met

kodGreya [7K]

Answer:

Question #1: Option C, (x - 1)(x^2 + x + 1)(x + 1)(x^2 - x + 1)

Question #2: Option C, 8x^3−56x^2+12x−84

Step-by-step explanation:

Question #1

<u>Step 1: Factor</u>

p(x) = x^6 - 1

<em>p(x) = (x + 1)(x - 1)(x^2 + x + 1)(x^2 - x + 1)</em>

<em />

Answer: Option C, (x - 1)(x^2 + x + 1)(x + 1)(x^2 - x + 1)

Question #2

<u>Step 1: Expand</u>

p(x) = 4(x - 7)(2x^2 + 3)

p(x) = (4x - 28)(2x^2 + 3)

p(x) = 8x^3 + 12x - 56x^2 - 84

<em>p(x) = 8x^3 - 56x^2 + 12x - 84</em>

<em />

Answer: Option C, 8x^3−56x^2+12x−84

8 0

3 years ago

Brad walked 2.5 miles in 5/6 of an hour.how fast does he walk per hour

Lelu [443]

Answer:

Rate or speed=3 Miles per hour

Step-by-step explanation:

Brad walked 2.5 miles in 5/6 of an hour.

Distance covered by Brad = 2.5 miles

Distance covered by Brad= 2 1/2 miles

Distance covered by Brad= 5/2 miles

Time taken to cover the distance = 5/6 of an hour

His rate of walking or how fast he walks is determined by the formula

Rate or speed= distance/time

Rate or speed=( 5/2)/(5/6)

Rate or speed= (5/2)*(6/5)

Rate or speed=6/2

Rate or speed=3 Miles per hour

6 0

3 years ago