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
solniwko [45]
3 years ago
15

What is r- 11 /3 = -7

Mathematics
2 answers:
Sergeeva-Olga [200]3 years ago
5 0
I believe that The answer is r=-10
Oksanka [162]3 years ago
3 0
Wouldn't r = -10?
because you'd multiply -7 by 3, to get rid of the division.
then you'd add 11.
You might be interested in
Kyle Lowry earned $31.2 million in US dollars playing for the Toronto Raptors during the 2018–2019 season. How much was he earni
liraira [26]

Answer:

I think C or D not sure about the question answer

6 0
2 years ago
From the diagram, identify a pair of corresponding angles <br><br> i need helppp!
Verizon [17]

Answer:

2 and 6, 1 and 5

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Find the limit, if it exists. (If an answer does not exist, enter DNE.)
gavmur [86]

Answer:

\lim\limits_{(x,y)\rightarrow(0,0)}\left(\sqrt{x^2+y^2+49}+7\right)=14

Step-by-step explanation:

to find the limit:

\lim\limits_{(x,y)\rightarrow(0,0)}\left(\dfrac{x^2+y^2}{\sqrt{x^2+y^2+49}-7}\right)

we need to first rationalize our expression.

\dfrac{x^2+y^2}{\sqrt{x^2+y^2+49}-7}\left(\dfrac{\sqrt{x^2+y^2+49}+7}{\sqrt{x^2+y^2+49}+7}\right)

\dfrac{(x^2+y^2)(\sqrt{x^2+y^2+49}+7)}{(\sqrt{x^2+y^2+49}\,)^2-7^2}

\dfrac{(x^2+y^2)(\sqrt{x^2+y^2+49}+7)}{(x^2+y^2)}

\sqrt{x^2+y^2+49}+7

Now this is our simplified expression, we can use our limit now.

\lim\limits_{(x,y)\rightarrow(0,0)}\left(\sqrt{x^2+y^2+49}+7\right)\\\sqrt{0^2+0^2+49+7}\\7+7\\14

Limit exists and it is 14 at (0,0)

4 0
3 years ago
Use the given data to find the equation of the regression line. x 44 44 11 11 55 y 66 55 negative 1−1 negative 3−3 88 ModifyingA
Temka [501]

Answer:

y=1.98 x -24.34

Step-by-step explanation:

Assuming the following data

X: 44, 44, 11, 11, 55

Y: 66, 55, -1, -3, 88

We want to find a linear model Y= mx +b

For this case we need to calculate the slope with the following formula:

m=\frac{S_{xy}}{S_{xx}}

Where:

S_{xy}=\sum_{i=1}^n x_i y_i -\frac{(\sum_{i=1}^n x_i)(\sum_{i=1}^n y_i)}{n}

S_{xx}=\sum_{i=1}^n x^2_i -\frac{(\sum_{i=1}^n x_i)^2}{n}

So we can find the sums like this:

\sum_{i=1}^n x_i =44+44+11+11+55=165

\sum_{i=1}^n y_i =66+55-1-3+88=205

\sum_{i=1}^n x^2_i =7139

\sum_{i=1}^n y^2_i =15135

\sum_{i=1}^n x_i y_i =10120

With these we can find the sums:

S_{xx}=\sum_{i=1}^n x^2_i -\frac{(\sum_{i=1}^n x_i)^2}{n}=7139-\frac{165^2}{5}=1694

S_{xy}=\sum_{i=1}^n x_i y_i -\frac{(\sum_{i=1}^n x_i)(\sum_{i=1}^n y_i)}{n}=10120-\frac{165*205}{5}=3355

And the slope would be:

m=\frac{3355}{1694}=1.98

Nowe we can find the means for x and y like this:

\bar x= \frac{\sum x_i}{n}=\frac{165}{5}=33

\bar y= \frac{\sum y_i}{n}=\frac{205}{5}=41

And we can find the intercept using this:

b=\bar y -m \bar x=41-(1.98*33)=-24.34

So the line would be given by:

y=1.98 x -24.34

4 0
3 years ago
Answer fast, please
svetoff [14.1K]

Answer:

C

Step-by-step explanation:

L=3w/2

P=2l+2w

3w+2w=5w

Please mark as Brainliest! :)

Have a nice day.

3 0
3 years ago
Other questions:
  • Please Answer ASAP!
    12·2 answers
  • Uni made a model of a 1970 Ford Mustang using a scale of .5 inches = 9 in. If the actual car is 15 ft long, how long is the mode
    8·1 answer
  • A)25,000<br>B)35,000<br>C)70,000<br>D)75,000
    10·1 answer
  • The ratio of girls to boys in a lunchroom is 3 to 4. There are 48 boys. How many girls are there?
    12·1 answer
  • if 4 shirts and 3 ties cost 241. and 3 shirts and 4 ties cost 200. what is the cost of 1 shirt and 1 tie?​
    8·1 answer
  • What is the measure of
    11·1 answer
  • Standard form <br> 0.000085
    9·1 answer
  • Plzzzz help meeeeeeeeeeeeeeeeeeeeeeeeeeee
    6·1 answer
  • I need help with this math problem!! i'll give brainilist to the correct answer :)
    5·1 answer
  • The slope of the line that passes through the points (-3,-3) and
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!