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ruslelena [56]
4 years ago
7

-9 - (-2) as an addition problem

Mathematics
1 answer:
alekssr [168]4 years ago
4 0

Answer:

-7

Step-by-step explanation:

-9 - (-2)

If there is a negative sign in front of a negative number in parenthesis, then that makes it a positive number.

-9 + 2 = -7

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If an object is projected upward with an initial velocity of 126ft per? sec, its height h after t seconds is h=?16t^2+126t. Find
Archy [21]

Answer:

=760 ft

Step-by-step explanation:

h=16t^2+126t

Let t=4

h = 16 (4)^2 +126(4)

h = 16*16 +126(4)

  =256+504

   =760 ft

5 0
4 years ago
Please help I'm lost.
vova2212 [387]

Part 1: Answer:

(x+1)(x+1)(x-6) = x^3 - 4x^2 - 11x - 6

Step-by-step explanation:

To make r a root, include (x-r) as a factor. (-1+1)(-1+1)(-1-6) is zero even though (-1-6) isn't.

(6+1)(6+1)(6-6) is zero.


Part 2 Answer:

Standard form: y = -x^4 + 12

Degree 4

left end goes down, right end goes down.

Step by step: apply the definitions of standard form, polynomial degree, and "end behavior". In other words, read the textbook.


Part 3: Answer: x = 3, x = 8

Step by step:

x^2-11x = -24

x^2-11x+24 = 0

(x-3)(x-8) = 0

x = 3 or x = 8


Part 4a Answer:

quotient 2x^2 + x - 3

remainder 1


Step by step:

2x^2 + x - 3

___________________

x-4 ) 2x^3 - 7x^2 - 7x + 13

2x^3 - 8x^2

__________

0 + x^2 - 7x + 13

x^2 - 4x

____________

0 - 3x + 13

- 3x + 12

______

1


Part 4b answer:

quotient 2x^2 - 6x + 2

remainder -20


Step by step: you have to know exactly what you are doing. Refer to textbook or Wikipedia.


dividend 2x^3 +14x^2 - 58x

divisor x+10

leading coefficient of divisor must be 1

write coefficients of dividend at top

write coefficients of dividend at left


| 2 14 -58 0

-10 | -20 60 -20

___________

| 2 -6 2 -20

Coefficients of quotient are 2 -6 2

Remainder is -20

quotient = 2x^2 - 6x + 2



7 0
3 years ago
List the prime factorization of 2,800
alisha [4.7K]

Answer:

2800

/ \

2 1400

/ \

2 700

/ \

2 350

/ \

2 175

/ \

5 35

/ \

5 7

/ \

7 1

3 0
4 years ago
ASAP! GIVING BRAINLIEST! Please read the question THEN answer correctly! No guessing.
Snezhnost [94]

Answer:

B yes, because every x value corresponds to exactly one y value

Step-by-step explanation:

A function means that each input goes to a different output

Each input goes to only 1 y value

4 0
4 years ago
Read 2 more answers
On the planet Joop, there are 6 gespils to every 14 vreels. If farmer
zzz [600]

Answer:

51 vreels

Step-by-step explanation:

Step 1: Given data

Ratio of gespils to vreels on the planet Joop: 6:14

Step 2: Calculate the number of gespils per 120 vreels

Elentine has 120 vreels on her rew farm. If there are 6 gespils every 14 vreels, the number of gespils is:

120 vreels × (6 gespils/14 vreels) ≈ 51 vreels

3 0
3 years ago
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