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3 years ago

Plss answer this will give brainliest 5 stars and a thx IVE BEEN ASKING FOR 2 DAYS :( OVERDUE

Mathematics

2 answers:

lina2011 [118]3 years ago

6 0

Answer: -10

Step-by-step explanation:

A negative number divided by a positive number is always going to be negative

monitta3 years ago

6 0

Answer:

-10

Step-by-step explanation:

Because a negative number divided by a positive number is a negative number.

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An electrician needs 14/3 rolls of electrical wire to wire each room in a house. How many rooms can he wire if he has 28/3 rolls

11111nata11111 [884]

Answer:

An electrician needs 14/3 rolls of electrical wire to wire each room in a house. How many rooms can he wire if he has 28/3 rolls of wires?

sory

8 0

3 years ago

How do you solve 0,75 + -17

EastWind [94]

Answer:

-16.25

Step-by-step explanation:

take the bigger number (-17) change it to positive, and then subtract that by the other number(0.75) then once you get your result. return the negative for -16.25

If you liked this answer, give me brainliest please.

4 0

3 years ago

how can you use distributive property to write an expression equivalent to the one given above? Use reasoning to explain how you

Anit [1.1K]

The reason how the expression are equivalent given below:

<h3>What is Distributive Property?</h3>

Multiplying a number by a sum or difference is the same as multiplying by each number in the sum or difference and then adding or subtracting.

The Complete question is:

How can you use distributive property to write an expression equivalent to the one given above? Use reasoning to explain how you know the expressions are equivalent.

Distributive property represents distribute the outside number among the number or digits in parenthesis.

For Example: Solve the expression 7(20 + 3) using the distributive property of multiplication over addition.

When we solve the expression 7(20 + 3) using the distributive property,

we first multiply every addend by 7.

This is known as distributing the number 7 amongst the two addends and then we can add the products.

This means that the multiplication of 7(20) and 7(3) will be performed before the addition.

Hence, 7(20) + 7(3) = 140 + 21 = 161.

Learn more Distributive Property here:

brainly.com/question/5637942

#SPJ1

8 0

2 years ago

Solve for X. No need to show work.

bija089 [108]

We assume the triangle is a right triangle. In a 30°-60°-90° triangle, the longest side is twice the length of the shortest.

... 4x = 2(√(x/2))

... 2x = √(x/2) . . . . . . divide by 2

... 4x² = x/2 . . . . . . . . square both sides

... 8x² - x = 0 . . . . . . . multiply by 2, subtract x

... x(8x -1) = 0 . . . . . . . factor

... x = 0 . . . or . . . x = 1/8 . . . . . . values of x that make the factors zero

The first case (x=0) is a "degenerate" case and is not useful. The entire triangle is a single point in that case.

The value of x is ...

... x = 1/8

3 0

3 years ago

Flip a coin 10 times and record the observed number of heads and tails. For example, with 10 flips one might get 6 heads and 4 t

zepelin [54]

Answer:

The greater the sample size the better is the estimation. A large sample leads to a more accurate result.

Step-by-step explanation:

Consider the table representing the number of heads and tails for all the number of tosses:

Number of tosses n (HEADS) n (TAILS) Ratio

10 3 7 3 : 7

30 14 16 7 : 8

100 60 40 3 : 2

Compute probability of heads for the tosses as follows:

n = 10 tosses

$P(\text{HEADS})=\frac{3}{10}=0.30$

The probability of heads in case of 10 tosses of a coin is -0.20 away from 50/50.

n = 30 tosses

$P(\text{HEADS})=\frac{14}{30}=0.467$

The probability of heads in case of 30 tosses of a coin is -0.033 away from 50/50.

n = 100 tosses

$P(\text{HEADS})=\frac{60}{100}=0.60$

The probability of heads in case of 100 tosses of a coin is 0.10 away from 50/50.

As it can be seen from the above explanation, that as the sample size is increasing the distance between the expected and observed proportion is decreasing.

This happens because, the greater the sample size the better is the estimation. A large sample leads to a more accurate result.

5 0

3 years ago