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4 years ago

Three more than a number is -5 find the number

Mathematics

2 answers:

Mkey [24]4 years ago

7 0

It is -8 because -8+3 is -5

Rus_ich [418]4 years ago

7 0

-2
because when the output is a negative number you add the positive number to the negative number and if it is a negative and a negative it will be a positive

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Simplify÷(x^a+b*x^c+d)÷(x^c+d*x^d+a)<br>plzz guys help me with this question

Alex17521 [72]

X^a + bx^c + d
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Cx+ dx^d + a

8 0

3 years ago

which statements about the system are true? check all that apply. y = x – 4 3y – x = –7 the system has one solution. the system

Dmitrij [34]

The slope of the first equation has a slope of one and a y intercept of -4. The second equation has a y intercept of -2.3333 as seen when plugging in 0 for x, so the same y-intercept and same line are out of the question. This means either they have the same slope and thus are parallel or intersect at some point. A simple way to find out? Plug in 1 for x on the second. If it isn't -1.33333, which is a slope of positive 1 such as in the first equation, they WILL INTERSECT somewhere. When plugging in 1, we get
3y - 1 = -7
3y = -6
y = -2
(1, -2) is the next point after (0, -2.3333)
That means it is most certainly not the same slope, and thus they will intersect at some point. The two slopes are 1/1 and 1/3 if you weren't aware.

8 0

4 years ago

Read 2 more answers

Noah bought 15 baseball cards for $9. At this rate, what is the cost of 1 baseball card?

pychu [463]

You do nine divided by fifteen which =$0.6

3 0

3 years ago

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Help?? I am confused!

Scilla [17]

Step-by-step explanation:

Put the values of x to W(x).

$W(x)=\dfrac{80(2x+15)}{x+6}\\\\\\x=0\to W(0)=\dfrac{80(2(0)+15)}{0+6}=\dfrac{80(0+15)}{6}=\dfrac{80(15)}{6}=\dfrac{1200}{6}=200\\\\x=1\to W(1)=\dfrac{80(2(1)+15)}{1+6}=\dfrac{80(2+15)}{7}=\dfrac{80(17)}{7}=\dfrac{1360}{7}=194\dfrac{2}{7}\\\\x=4\to W(4)=\dfrac{80(2(4)+15)}{4+6}=\dfrac{80(20+15)}{10}=8(35)=280\\\\x=12\to W(12)=\dfrac{80(2(12)+15)}{12+6}=\dfrac{80(24+15)}{18}=\dfrac{80(39)}{18}=\dfrac{3120}{18}=173\dfrac{1}{3}\\\\x=24\to W(24)=\dfrac{80(2(24)+15)}{24+6}=\dfrac{80(48+15)}{30}=\dfrac{80(63)}{30}=\dfrac{5040}{30}=168$

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4 years ago

Which of the following data sets indicates a strong negative correlation?

Nuetrik [128]

Answer:

Option: C is the correct answer.

C. {(-2, 4), (-1, 2), (0, 0), (1, -2) }

Step-by-step explanation:

<u>Strong negative correlation--</u>

A negative correlation is a relationship between two variable such that with the increase of one variable the other variable decrease and vice versa.

Negative correlation is also means the two variables have an inverse relationship.

Also, the relationship is strong if all the points lie above the line of best fit.

Hence, from the given set of data the set that represent the strong negative correlation is:

C. {(-2, 4), (-1, 2), (0, 0), (1, -2) }

Since in this set the x-value is increasing by a constant rate i.e. 1 ( i.e. -2,-1,0 and 1) while the other value is decreasing by a constant rate i.e. 2 ( i.e. 4,2,0 and -2).

Hence, we will get a linear relationship such that all the points will lie above the line and the line of best fit have a negative slope.

Hence, the data set has a strong negative correlation.

6 0

3 years ago

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