All categories

3 years ago

Evaluate lal - Ibl, given a = 5, b = -3, and c = -2.a. 2 b. 3 c. 7 d. 8

Mathematics

1 answer:

Natali [406]3 years ago

3 0

Answer:

A. 2

Step-by-step explanation:

Absolute Valie: how many units a number is from zero. (ex: |5|=5, |-7|=7, |-126|=126)

|a| = the absolute value of a (a=5) so the absolute value of a is 5

|b| = the absolute value of b (b=-3) so the absolute value of b is 3.

|a| - |b| = answer : the absolute value of a subtracting/minus the absolute value of b is the answer. So...

|a| = 5

|b| = 3

(|a|=5) - (|b|=3) = (5) - (3) = 2

You might be interested in

In a shop, the original price of a coat is £50.22

iragen [17]

Answer:

A. 40.18

B. 42.80

Step-by-step explanation:

A. To find the discount price of an item multiply the price by the percentage you pay. Its discounted 20% meaning you pay 80%. Then the price of the coat is 0.8(50.22) = 40.18.

B. The sale price of a shirt is 25.68. The original price as reduced by 3/5. The original price is equal to 25.68 = 3/5x. Solve for x by multiplying by the reciprocal. 25.68 ( 5/3) = x. 42.8 = x.

4 0

3 years ago

Charlie estimates his dog weighs 17 lbs. When Charlie weighed his dog, he weighed 20 lbs. What is the percent error of the weigh

amm1812

Answer:

The 15% error

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

......ssssssssssssssssssssssssssssssssssssshhhhhh

Darina [25.2K]

Hey there! I'm happy to help!

Step 2 is incorrect. She added 4 and 2 first, but you are supposed to multiply and divide first. Then she multiplied 6 and 6, which is 36. Then she divided 36 and 2, which is 18, and then she subtracted 7, giving her 11. Step 2 is what threw the whole thing off.

Here is what Sandy should have done.

STEP 1: 6·4+2÷2-7

STEP 2: 24+1-7

STEP 3: 25-7

STEP 4: 18

I hope that this helps! Have a wonderful day! :D

3 0

2 years ago

Read 2 more answers

According to police sources, a car with a certain protection system will be recovered 87% of the time. Find the probability that

WITCHER [35]

Answer: 0.01145

Step-by-step explanation:

We use Binomial distribution , where the probability of getting x successes in n trial is given by :-

$P(x)=^nC_xp^x(1-p)^{n-x}$ , p = probability of getting each success in each trial.

As per given

The proportion that a car with a certain protection system will be recovered= p=0.87

n= 8

Let x be the number of cars will be recovered.

Then, the probability that 4 of 8 stolen cars will be recovered:

$P(X=4)=^8C_4(0.87)^4(1-0.87)^{8-4}$

$=\dfrac{8!}{4!(8-4)!}(0.87)^4(0.13)^4\\\\= 70(0.57289761)(0.00028561)\\\\=0.0114537700474\approx0.01145$

Hence, the required probability is 0.01145.

5 0

3 years ago

Can I get help with this? Thanks! :)

ycow [4]

Answer:

The answer is 17

Step-by-step explanation:

8^2+15^2=c^2

64+225=c^2

289=c^2

Square root both sides

c=17

8 0

3 years ago

Evaluate lal - Ibl, given a = 5, b = -3, and c = -2.a. 2 b. 3 c. 7 d. 8​

Evaluate lal - Ibl, given a = 5, b = -3, and c = -2.a. 2 b. 3 c. 7 d. 8