All categories

3 years ago

Can someone help me with part B

Mathematics

1 answer:

leonid [27]3 years ago

4 0

B=5a-4
pick any a valve and replace it with a you will get b

You might be interested in

×-2+2×+4+2×-2=180 what does x equal in this equation.

daser333 [38]

Answer:

x = 36

Here's how I got that:

- Group like terms -

x - 2 + 2x + 4 + 2x - 2 = 180

↓

5x - 2 + 4 - 2 = 180

↓

5x = 180

- Divide both sides by 5 -

5x/5 = 180/5

↓

x = 36

~ That's all folks ~

-Siascon

6 0

2 years ago

PLEASE ASAP ILL GIVE BRAINLIEST.

kaheart [24]

I’m going to say the top one it seems like that would be correct

6 0

2 years ago

Read 2 more answers

Paulo catches a 7.45 am tram to school. During a period of 79 days, he arrives at school on time 53 occasions. Estimate the prob

lawyer [7]

Answer:

On time: 0.67

Late: 0.33

Step-by-step explanation:

Probabilities

One approach to estimating the probability of occurrence of an event is to record the number of times that event happens (e) and compare it with the total number of trials (n).

The probability can be estimated with the formula:

$\displaystyle P=\frac{e}{n}$

And the probability that the event doesn't occur is

Q = 1 - P

Paulo arrives on time to school e=53 times out of n=79 times. The probability that he arrives on time is:

$\displaystyle P=\frac{53}{79}$

P = 0.67

And the probability he arrives late is:

Q = 1 - 0.67 = 0.33

4 0

2 years ago

1. y = 6 x+8 2. y = 23 x 3. y = -x+ 5 4. y = 3 4 x - 212 5. y = 1,5 x + 11

fenix001 [56]

Answer:

Not sure what you're asking here

Step-by-step explanation:

5 0

2 years ago

(x 4 - 81) (x - 3) . write answers in descending power of x. (division)

Zinaida [17]

Answer:

x^3+3x^2+9x+27

Step-by-step explanation:

$\dfrac{x^4-81}{x-3}=\dfrac{(x^2-9)(x^2+9)}{x-3}=\dfrac{(x-3)(x+3)(x^2+9)}{(x-3)}\\\\=(x+3)(x^2+9)=x^3+3x^2+9x+27$

_____

The factoring of the difference of squares is used (twice):

a² -b² = (a -b)(a +b)

4 0

3 years ago