1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Goryan [66]
3 years ago
13

2 – (–8) + (–3) = ?

Mathematics
1 answer:
vodka [1.7K]3 years ago
5 0
A minus before a parenthesis means we need to change the sign.

So 2 + 8 - 3 = 7
You might be interested in
Miguel sells insurance. He earns a 6% commission on each sale he makes. Miguel has a goal of earning $600 in commissions. Miguel
tankabanditka [31]

Answer: $12,000

Step-by-step explanation:

Miguel makes 6% on every sale he makes and wants to make $600 in commissions.

The amount he needs to sell is therefore the amount that has $600 as 5% of it.

Assume the amount of insurance needed is x.

x * 5% = 600

x = 600 / 5%

x = $12,000

4 0
3 years ago
Use the normal distribution of fish lengths for which the mean is 11 inches and the standard deviation is 2 inches. assume the v
Kaylis [27]

To solve this problem, we make use of the z statistic. What we have to do here is to find for the z score using the given data and from the standard probability tables for z, we locate the proportion of the fish longer than 12 inches.

 

The formula for calculating the z score is:

z = (x – μ) / σ

where,

x = the sample value = 12 inches

μ = the sample mean = 11 inches

σ = 2 inches

 

so,

z = (12 – 11) / 2

z = 1 / 2

z = 0.5

 

Since we are looking for the values greater than 12, so this is a right tailed test. Using the tables, the value of p at this value of z is:

p (z = 0.5) = 0.3085

 

Therefore there is a 30.85% probability that the fish is longer than 12 inches.

3 0
3 years ago
Please my new and old friends on here please help i already said how i was feeling and some people made me feel better so yay ju
tino4ka555 [31]
I don’t really understand what you mean could you be more specific please.
6 0
3 years ago
Someone help me plzzz:((((
mash [69]

Step-by-step explanation:

OI= 3.2 cm (same as OH)

To find GI, use Pythagoras Theorem (a²+b²= c²)

6.8²+3.2²= 56.48

√56.48= 7.5 cm

hope it helps! please mark me brainliest

thank you! have a good day ahead

if u follow me, i will follow u back

3 0
3 years ago
Read 2 more answers
Find the squares of (y+3) ​
emmasim [6.3K]

Answer:

Since we know that

(a+b)

2

=a

2

+2ab+b

2

(a−b)

2

=a

2

−2ab+b

2

Now,

(i)

(x+3y)

2

=x

2

+2×x×3y+(3y)

2

=x

2

+6xy+9y

2

(ii)

(2x−5y)

2

=(2x)

2

−2×2x×5y+(5y)

2

=4x

2

−20xy+25y

2

(iii)

(a+

5a

1

)

2

=a

2

+2×a×

2a

1

+(

2a

1

)

2

=a

2

+1+

4a

2

1

(iv)

(2a−1a)=(1a)

2

(1a)

2

=1a

2

Answer

8 0
2 years ago
Other questions:
  • -<br>tan(130°) - tan(75°)/<br>1 + tan(130°)tan(75)<br>​
    5·1 answer
  • 3(9-4) Divided by five
    6·2 answers
  • The percentage change of a ratio of two variables is approximately the percentage change in the numerator _____ the percentage c
    14·2 answers
  • A mason will lay rows of bricks to build a wall. The mason will spread 3/8" of mortar on top of all but the last row of bricks.
    7·1 answer
  • What is the value of 6x2−4x when x = 5?
    8·2 answers
  • A group of people went to a restaurant.
    12·1 answer
  • What is absolute value
    8·2 answers
  • Can someone please help me out Its really Important please marking brainliest Answer what you can
    8·1 answer
  • 1. Evan does some shopping at a market.
    15·1 answer
  • The least common denominator of 2/5, 1/2, and 3/4 is:
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!