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
pshichka [43]
3 years ago
15

Select all of the expressions that are equal to 6,

Mathematics
2 answers:
IgorC [24]3 years ago
8 0

Answer:

<h2>(6), -(-6)</h2>

Step-by-step explanation:

(6)=6\\\\(-6)=-6\neq6\\\\-(6)=-6\neq6\\\\-(-6)=6\\\\(0-6)=(-6)=-6\neq6\\\\(-2)\cdot(3)=-6\neq6

romanna [79]3 years ago
7 0
<h2>Answer:</h2>

The expressions that are equal to 6 are:

                       (6) , -(-6)

<h2>Step-by-step explanation:</h2>

We are asked to find the expressions which are equal to 6.

a)

          (6)

We know that on opening the parentheses term if the sign before the parentheses is positive then the number remains the same.

but if the sign before the parentheses is negative then the number gets reversed.

Hence, the number is equal to 6.

b)

         (-6)

The number is equal to -6.

c)

          -(6)

The number is equal to -6.

d)

           -(-6)

The number is equal to 6.

e)

          (0-6)

The number is equal to -6.

f)

    (-2) · (3)

The number is equal to -6.

( We know that the multiplication of a negative and a positive number is always a negative number ).

You might be interested in
Consider a population list x, with a CV= 10%. A second population list, y, has a CV= 20%. The linear regression of y on x is y =
ch4aika [34]

Answer:

The correlation coefficient 0.5 depicts that there is moderate positive correlation between y and x.

Step-by-step explanation:

The linear regression equation is

y= a+bx

The given linear equation is

y= 10x

Here, slope=b=10 and intercept=a=0.

From above equation,

ybar=10xbar

We are given that CVx=0.1 and CVy=0.2

where CV=(standard deviation/mean)*100

We know that

b=r(Sy/Sx)

Multiplying by xbar/ybar on both sides

(xbar/ybar)b=r(Sy/Sx)(xbar/ybar)

(xbar/ybar)b=r[(Sy/ybar)/(Sx/xbar))]

(xbar/ybar)b=r[CVy/CVx]

As CVy/CVx=(Sy/ybar)*100/(Sx/xbar)*100=(Sy/ybar)/(Sx/xbar).

By putting ybar=10xbar, b=10, CVx=0.1 and CVy=0.2.

(xbar/10xbar)10=r(0.2/0.1)

1=r(0.2/0.1)

1=r(2)

r=0.5

There is moderate positive correlation between y and x.

6 0
2 years ago
rosa works north of her home. her husband works east they leave at the sane time. by the time rosa is 7 miles from home, the dis
Gennadij [26K]

This problem requires the Pythagorean therom.

The distance between them is 7.

Since the distance between them is one more mile than ray's distance from home ray is 6 miles from home.

So rosa is \sqrt{7^2-6^2}

So rosa is \sqrt{13} miles away from home.

Rosa is about 3.6 miles from home.

7 0
3 years ago
Sophia has an ear infection. The doctor prescribes a course of antibiotics. Sophia is told to take 500 mg doses of the antibioti
ser-zykov [4K]

Answer:

Step-by-step explanation:

Part 1:

Let 

     Q₁ = Amount of the drug in the body after the first dose.

     Q₂ =  250 mg

As we know that after 12 hours about 4% of the drug is still present in the body.

For Q₂,

we get:

            Q₂ = 4% of Q₁ + 250

                  = (0.04 × 250) + 250

                  = 10 + 250

                  = 260 mg

Therefore, after the second dose, 260 mg of the drug is present in the body.

Now, for Q₃ :

We get;

          Q₃ = 4% of Q2 + 250

               = 0.04 × 260 + 250

               = 10.4 + 250

               = 260.4

For Q₄,

We get;

          Q₄ = 4% of Q₃ + 250 

                = 0.04 × 260.4 + 250

                = 10.416 + 250 

                = 260.416

Part 2:

To find out how large that amount is, we have to find Q₄₀.

Using the similar pattern

for Q₄₀,

We get;

           Q₄₀ = 250 + 250 × (0.04)¹ + 250 × (0.04)² + 250 × (0.04)³⁹

Taking 250 as common;

           Q₄₀ = 250 (1 + 0.04 + 0.042 + ⋯ + 0.0439)

                 = 2501 − 0.04401 − 0.04

           Q₄₀ = 260.4167

Hence, The greatest amount of antibiotics in Susan’s body is 260.4167 mg.

Part 3:

From the previous 2 components of the matter, we all know that the best quantity of the antibiotic in Susan's body is regarding 260.4167 mg and it'll occur right once she has taken the last dose. However, we have a tendency to see that already once the fourth dose she had 260.416 mg of the drug in her system, that is simply insignificantly smaller. thus we will say that beginning on the second day of treatment, double every day there'll be regarding 260.416 mg of the antibiotic in her body. Over the course of the subsequent twelve hours {the quantity|the quantity|the number} of the drug can decrease to 4% of the most amount, that is 10.4166 mg. Then the cycle can repeat.

3 0
3 years ago
Sam invests $9,400 in a fund yielding 5.2% simple interest annually. At the same time, Pat shops around for a better interest ra
Goryan [66]
Pat's fund earned is $526.40 more than Sam's fund.

Sam's investment :
9400*.052 = 488.80*7 = $3,421.60

Pat's investment :
9400*.06 = 564*7= $3,948.00

$3,948.00-$3,421.60=$562.40

The answer to your question is going to be D. $526.40.

Hope this helps you!!:))
6 0
3 years ago
Read 2 more answers
2x + 7 + 29 = 90<br> Help me solve it
BartSMP [9]

Answer:

x = 27

Step-by-step explanation:

look at the screenshot below it'll explain the answer

5 0
3 years ago
Read 2 more answers
Other questions:
  • Find the length of arc RQ. Use 3.14
    14·1 answer
  • 3 cups of flour and 2 cups of water . What is the ratio of flour to water
    15·1 answer
  • Calculate the area, with the appropriate number of significant figures, of a rectangular room that is 14.10 m wide by 15.0 m lon
    12·1 answer
  • Use Inverse Operations to solve.Check Your Answer<br><br> 17 + k = 54
    12·2 answers
  • Look at these numbers. 0.3,
    15·2 answers
  • How do you simplify -24e5/6e
    6·1 answer
  • What is -20.3-14.34?
    12·1 answer
  • If the area of a circle measures 25π cm2, what is the circumference of the circle in terms of π? A) 5π cm B) 10π cm C) 50π cm D)
    6·2 answers
  • A local television station for a city with a population of 500,000 recently conducted a poll where they invited viewers to call
    14·1 answer
  • Please help, I've been doing math since the time I woke up, with no breaks. I'm brain dead rn. It's all timed.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!