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3 years ago

I need to know the answer

Mathematics

1 answer:

Yuri [45]3 years ago

3 0

Answer:

A only.

Step-by-step explanation:

A. 2^2 + 3(2) - 10 = 0

4 + 6 - 10 = 0

10 - 10 = 0

0 = 0 (correct)

-5^2 + 3(-5) - 10 = 0

25 + (-15) - 10 = 0

10 - 10 = 0

0 = 0 (correct)

B. 2^2 - 3(2) - 10 = 0

4 - 6 - 10 = 0

-2 - 10 = 0

-12 = 0 (not correct)

-5^2 - 3(-5) - 10 = 0

25 - (-15) - 10 = 0

40 - 10 = 0

30 = 0 (not correct)

C. 2^2 + 7(2) + 10 = 0

4 + 14 + 10 = 0

18 + 10 = 0

28 = 0 (not correct)

-5^2 + 7(-5) + 10 = 0

25 + (-35) + 10 = 0

-10 + 10 = 0

0 = 0 (correct)

D. 2^2 - 7(2) + 10 = 0

4 - 14 + 10 = 0

-10 + 10 = 0

0 = 0 (correct)

-5^2 - 7(-5) + 10 = 0

25 - (-35) + 10 = 0

60 + 10 = 0

70 = 0 (not correct)

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Simplify the expression - 1/2(5/6+1/3)

mel-nik [20]

Answer:

- 7/12

Step-by-step explanation:

- 1/2 ( 5/6 + 1/3 )

- 1/2 ( 5/6 + 2/6)

- 1/2 ( 7/6 )

- 7/12 or - 0.58

8 0

2 years ago

Tickets to the school musical are $5.00 for adults and $3.50 for students. If the total value of the tickets sold was $2517.50 a

stealth61 [152]

To answer this, you will write and equation in terms of the number of adult tickets sold and then solve for a, the number of adult tickets.

$5a + $3.50s = $2517.50
$5a + $3.50(a + 100) = $2517.50
5a + 3.50a + 350 = 2517.50
8.50a -350 -350
8.5a = 2167.50
8.5 8.5
a = 255
The number of adult tickets sold was 255, and the number of student tickets sold was 355 (255 +100).

7 0

3 years ago

Use distributive property to rewrite 10(5+14-3)

Allisa [31]

(10x5)+(10x14)+(10x-3)
50+140-30
160

7 0

3 years ago

Please help ill give brainlist

nordsb [41]

Answer:

c. m∠2 = m∠5

Step-by-step explanation:

We can check 1 by 1 and find the false one.

For answer A, measures 2 and 4 are vertical angles, which means they are equal, so that's not false.

For answer b, measures 4 and 8 are corresponding angles, since X and Y are parallel, so that's also not false.

For answer c, measures 2 and 5 are supplementary to each other, and since the transversal is not perpendicular to X nor Y, they are not equal, therefore, this is false, making that the answer.

For answer d, measure 2 and 6 are corresponding angles, so that's also not false.

Therefore, the answer must be c.

7 0

3 years ago

Which describes the relationship between 15,700 and 157,000? A 15,700 is 1/10 of 157,000 B 157,000 is 1/10 of 15,700 C 15,700 is

viva [34]

Answer: 15,700 is 1/10 of 157,000 (A)

Step-by-step explanation:

The relationship between 15,700 and 157,000 is that 15,700 is 1/10 of 157,000

1/10 × 157,000 = 15,700

A 15,700 is 1/10 of 157,000

= 1/10 × 157,000

= 15700 (Correct)

15700 equals 15700

B 157,000 is 1/10 of 15,700

= 1/10 × 15700 = 1570 (Wrong)

1570 is not equal to 157000

C 15,700 is 1/100 of 157,000

= 1/100 × 157,000 = 1570 (Wrong)

1570 is not equal to 15700

D 157,000 is 1/100 of 15,700

1/100 × 15700 = 157 (Wrong)

157 is not equal to 157000

5 0

3 years ago