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3 years ago

ASAP!! PLEASE NEEDS TO BE ANSWERED TODAY

Mathematics

2 answers:

olganol [36]3 years ago

8 0

Answer:

20.7 units

Step-by-step explanation:

The reading is:

-20.7

So, 20.7 units below the water's surface

kirill115 [55]3 years ago

5 0

Answer:

-20.7

Step-by-step explanation:

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Is X +3 a factor of 2X squared minus 2X -12

Fantom [35]

Answer: No, x+3 is not a factor of 2x^2-2x-12

========================================================

Explanation:

Let p(x) = 2x^2 - 2x - 12

If we divide p(x) over (x-k), then the remainder is p(k). I'm using the remainder theorem. A special case of the remainder theorem is that if p(k) = 0, then x-k is a factor of p(x).

Compare x+3 = x-(-3) to x-k to find that k = -3.

Plug x = -3 into the function

p(x) = 2x^2 - 2x - 12

p(-3) = 2(-3)^2 - 2(-3) - 12

p(-3) = 12

We don't get 0 as a result so x+3 is not a factor of p(x) = 2x^2 - 2x - 12

----------------------------------------

Let's see what happens when we factor p(x)

2x^2 - 2x - 12

2(x^2 - x - 6)

2(x - 3)(x + 2)

The factors here are 2, x-3 and x+2

3 0

3 years ago

Show all your work!!! B is already wrong (TRUST ME)

Blizzard [7]

Answer:

yes

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

Natasha wants to find out if the neighborhood supports lowering the speed limit on the street in front of her school. Which is a

Daniel [21]

The answer is
Thirty residents who live within a 2 mile radius of natashas school.

8 0

2 years ago

The numbers 4, 8, 12, and 22 are all multiples of 4. t or f

Romashka-Z-Leto [24]

The answer is false 22 isn’t a multiple of 4

6 0

3 years ago

If AC is parallel to DE, find X

UNO [17]

Answer: x = 50

Concept:

Here, we need to know the idea of alternative interior angles and the angle sum theorem.

Alternative interior angles are angles that are formed inside the two parallel lines, and the values are equal.

The angle sum theorem implies that the sum of interior angles of a triangle is 180°

If you are still confused, please refer to the attachment below or let me know.

Step-by-step explanation:

Given information:

AC ║ DE

∠ABC = 85°

∠A = 135°

Find the value of ∠BAC

∠A + ∠BAC = 180° (Supplementary angle)

(135°) + ∠BAC = 180°

∠BAC = 45°

Find the value of ∠BCA

∠ABC + ∠BAC + ∠BCA = 180° (Angle sum theorem)

(85°) + (45°) + ∠BCA = 180°

∠BCA = 50°

Find the value of x (∠EBC)

∠EBC ≅ ∠BCA (Alternative interior angles)

Since, ∠BCA = 50°

Therefore, ∠EBC = 50°

$\Large\boxed{x=50}$

Hope this helps!! :)

Please let me know if you have any questions

8 0

1 year ago