3 years ago

How many times can 145 go into 21

Mathematics

1 answer:

Sveta_85 [38]3 years ago

3 0

Answer:

Step-by-step explanation:

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1. What's one way we can check our answer to 2 x10 = 20?

allsm [11]

The answer is b
.....

4 0

3 years ago

Olin [163]

Answer:

19 degrees

Step-by-step explanation:

From the question given

The interior angles are x+12 and x - 3

Exterior angle is <IJK = 5x-6

Using the rule that states that the sum of interior angle of a triangle is equal to the exterior

<JHI + <HIJ = <IJK

x+12 + x-3 = 5x - 6

2x+9 = 5x -6

2x - 5x = -6-9

-3x = -15

x = -15/-3

x = 5

Get <IJK

Recall that <IJK = 5x - 6

<IJK = 5(5) - 6

<IJK = 25-6

<IJK = 19 degrees

Hence the measure of <IJK is 19 degrees

8 0

2 years ago

Peter was thinking of a number. Peter divides by 7, then adds 5 to get an answer of 13. What was the original number?

Mila [183]

Answer:

Step-by-step explanation:

5-13=8

7*8=56

7 0

3 years ago

Read 2 more answers

Was the difference in the overall men's winner in the ages 70-74 group more less than 2 hours

PolarNik [594]

4 I think because you subtract all since it's 60 min

8 0

3 years ago

What is the completely factored form of f(x)=x3+5x2+4x−6?

Gre4nikov [31]

$f(x)=x^3+5x^2+4x-6$
$f(-3)=(-3)^3+5(-3)^2+4(-3)-6=0\implies x+3\text{ is a factor of }f(x)$

Synthetic division yields

-3 | 1   5   4   -6
.    |      -3 -6    6
- - - - - - - - - - - - -
.    | 1   2 -2    0

which translates to

$\dfrac{x^3+5x^2+4x-6}{x+3}=x^2+2x-2$

with remainder 0. Now by the quadratic formula,

$x^2+2x-2=0\implies x=\dfrac{-2\pm\sqrt{2^2-4(1)(-2)}}2=-1\pm\sqrt3$

and so

$f(x)=x^3+5x^2+4x-6=(x+3)(x-(-1+\sqrt3))(x-(-1-\sqrt3))$

3 0

2 years ago