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2 years ago

10

Order of Operations With Integers. Please help me solve and how you got the answer!! help, please!!

1 answer:

Nuetrik [128]2 years ago

7 0

Answer:

2

Step-by-step explanation:

$\frac{(-2)(-3)(-4)}{-9 + (-3)}$

First, simplify the top and bottom separately:

$\frac{-24}{-12}$

Then, just divide:

$-24 / -12 = 2$

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Write 0.00605 in scientific notation.

vichka [17]

How many jumps is it from the decimal point to the position to the right of the 6

The answer to that is 3 jumps. Since the move of the decimal made the number larger than it really is, it will take a negative value to put it back where it belongs.

So A) is the correct answer. It is in scientific notation and if you move the decimal back 3 place you get the number you stared with.

5 0

3 years ago

Scientist wants to estimate the puffin population on puffin island

steposvetlana [31]

Answer:

The cliffs are home to many seabirds. Despite its name, there are few puffins (around 50 pairs during the April-July breeding season).

Step-by-step explanation:

8 0

2 years ago

) Which statement describes the expression shown above? 6 times the sum of 2 and 8 ) plus the sum of 6 and 8 ) 8 plus the produc

ycow [4]

Answer: my childhood Memories

We're going on a trip in our favorite rocket ship

Zooming through the sky, Little Einsteins

the black/hood verse

"We're going on to the club in our favorite range rover

Zooming through the hood, Little gangsta's"

4 0

2 years ago

Or the past 100 years, the average high temperature on october 1 is 78° with a standard deviation of 5°. what is the probability

valina [46]

Answer:

The probability is 0.683

Step-by-step explanation:

To calculate this, we shall be needing to calculate the z-scores of both temperatures

mathematically;

z-score = (x-mean)/SD

From the question mean = 78 and SD = 5

For 73

z-score = (73-78)/5 = -5/5 = -1

For 83

z-score = (83-78)/5 = 5/5 = 1

So the probability we want to calculate is within the following range of z-scores;

P(-1 <z <1 )

Mathematically, this is same as ;

P(z<1) - P(z<-1)

Using the normal distribution table;

P(-1<z<1) = 0.68269 which is approximately 0.683

3 0

3 years ago

A sporting goods store sells right-handed and left-handed baseball gloves. In one month, 12 gloves were sold for a total revenue

stepladder [879]

Answer:

$9$ right-handed gloves and $3$ left-handed gloves were sold.

Step-by-step explanation:

Given: In one month, $12$ gloves were sold for a total revenue of $\$561$ .

right-handed gloves cost $\$45$ and left-handed gloves cost $\$52$ .

To find: How much of each type of gloves did they sell?

Solution: Let they sell $x$ right-handed gloves, and $y$ left-handed gloves.

Now, cost of each right-handed gloves $=\$45$

cost of each left-handed gloves $=\$52$

Total revenue $=\$561$

So, we get

$45x+52y=561\:\:\:...(i)$

Also, in a month $12$ gloves were sold.

So, we get

$x+y=12\:\:\:...(ii)$

Now, from $(ii)$ we get, $x=12-y$ .

Putting $x=12-y$ in equation $(i)$ , we get

$45(12-y)+52y=561$

$\implies 540-45y+52y=561$

$\implies7y=561-540$

$\implies7y=21$

$\implies y=\frac{21}{7}$

$\implies y=3$

Now, putting $y=3$ in equation $(ii)$ , we get

$x+3=12$

$\implies x=12-3$

$\implies x=9$

Hence, $9$ right-handed gloves and $3$ left-handed gloves were sold.

7 0

3 years ago