All categories

3 years ago

Which is equivalent to 6x - 8y? -2(-3x + 4y) or 2(3x + 4y)

1 answer:

7 0

The first one, because -2 multiply -3 you get a positive 6, and -2 multiply +4 you get a negative 8
the second one is wrong because the product of 2 and 4 is a positive 8

You might be interested in

Which expression is equal to 0 when simplified?

aksik [14]

The answer is A) 2n-3m-(2n+3m)

6 0

3 years ago

Dave loves a bargain and buys a feather boa which

Ivanshal [37]

Answer:

£9.50

Step-by-step explanation:

if the price was reduced 70%, then Dave is paying 30% of the original.

0.3 of £ = 2.85

£ = 2.85 / 0.3

£ = 9.5

£9.50

3 0

4 years ago

Read 2 more answers

4% of x days is 56 days

stiv31 [10]

4%• x =56
x=56•100/4
x=5600/4
x=1400

6 0

3 years ago

Read 2 more answers

PLS HELP ME ASAP WITH 10!! (MUST SHOW WORK!!) + LOTS OF POINTS!!

KiRa [710]

Wanda's graph is incorrect because Claudia needs to earn $80 or more and Wanda's graph shows $80 or less.

5 0

3 years ago

Read 2 more answers

A pharmaceutical company receives large shipments of aspirin tablets. The acceptance sampling plan is to randomly select and tes

EleoNora [17]

Answer:

a) The probability that this whole shipment will be accepted is 30%.

b) Many of the shipments with this rate of defective aspirin tablets will be rejected.

Step-by-step explanation:

We have a shipment of 3000 aspirin tablets, with a 5% rate of defects.

We select a sample of size 48 and test for defectives.

If more than one aspirin is defective, the batch is rejected.

The amount of defective aspirin tablets X can be modeled as a binomial distribution random variable, with p=0.55 and n=48

We have to calculate the probabilities that X is equal or less than 1: P(X≤1).

$P(X\leq1)=P(X=0)+P(X=1)\\\\\\P(0)=\binom{48}{0}(0.05)^0(0.95)^{48}=1*1*0.0853=0.0853\\\\\\P(1)=\binom{48}{1}(0.05)^1(0.95)^{47}=48*0.05*0.0897=0.2154\\\\\\P(X\eq1)=0.0853+0.2154=0.3007$

3 0

4 years ago