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3 years ago

What is the value of b in the equation below? 98.9-2-a O-10 O B O 9 O 16

Mathematics

2 answers:

umka21 [38]3 years ago

6 0

Answer:

I think is the 10

i hope this hepl you

slava [35]3 years ago

5 0

Answer:

A: -10

Step-by-step explanation:

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The kinetic energy k of an object in joules is given by the formula k=1/2mv² where m is the object's mass in kilograms and v is

Tamiku [17]

Answer:

192000 J

Step-by-step explanation:

k = 1/2 mv²

48000 = 1/2 x m x (20)²

48000 = 200m

m = 240 kg

new k

k = 1/2 x 240 x 40²

k = 192000 J

5 0

2 years ago

Use quadratic formula to solve 1-6x^2-x

eduard

Answer:

(3x-1)(2x+1)

Step-by-step explanation:

1-6x^2-x=0

-6x^2-x+1=0

6x^2+x-1=0

6x^2+(3-2)x-1=0

6x^2+3x-2x-1=0

3x(2x+1)-1(2x+1)=0

(3x-1)(2x+1)=0

So the factor is (3x-1)(2x+1)

6 0

3 years ago

I need help with math, I have no idea what I'm doing

Masteriza [31]

A. (x+3)(4x+5)
(multiply x with 4x+5 then multiply 3 with 4x+5)
=4x^2+5x+12x+15
=4x^2+17x+15
b,c, and d are similar

5 0

2 years ago

5 divided by 60<br> 5/60 ??

mr Goodwill [35]

Answer:

1/12 or 0.08333333333

Step-by-step explanation:

5/60 can be factored to 1/12 because the two numbers are each divisible by 5.

6 0

2 years ago

Read 2 more answers

Someone please help me!

Vlad1618 [11]

Answer:

A. $x \leq -16$

B. b > 11

C. $c \leq -13$

D. $x \geq -9$

Step-by-step explanation:

<u>Given the following algebraic expression;</u>

A. $\frac {3x}{4} \leq 12$

We would simplify the equation by multiplying all through by 4;

$4 * \frac {-3x}{4} \leq 12 * 4$

$-3x \leq 48$

Divide both sides by -3;

$x \leq -16$

B. 5b - 28 > 27

Rearranging the equation, we have;

5b > 27 + 28

5b > 55

Divide both sides by 5

b > 11

C. $13c \leq -169$

Divide both sides by 13

$c \leq -13$

D. $3x - 7 \geq 4x + 2$

Collecting like terms, we have;

$3x - 4x \geq 2 + 7$

$-x \geq 9$

Divide both sides by -1

$x \geq -9$

8 0

2 years ago