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
mash [69]
2 years ago
10

Pls help with this math problem

Mathematics
1 answer:
valentinak56 [21]2 years ago
7 0
-1.5. -1 1/2. -3/2






yeah so its this i’m 99.98% sure
You might be interested in
Hannah is making bags of. trail mix for hiking club she will use 21 ounces of walnuts 11.1 ounces of almonds and 13.4 ounces of
Alja [10]

Answer:

1.75 ounces per bag.

Step-by-step explanation:

First, we add the ounces all together and we get 45.5 ounces of trail mix. If we divide that by 26 bags, we will get 1.75 ounces per bag. I hope this helps. If someone else answers, can you give me brainliest? I really need it. Thanks!

3 0
3 years ago
Which is less -1 or -2? I just had the biggest brain fart and google isn't helping me so I leave it to you guys! :)
Verizon [17]

Answer:

-2

Step-by-step explanation:

its -2 because is a neg. number. the more the number is in neg. the lesser it is  

3 0
3 years ago
Read 2 more answers
If s=4πr², find the positive value of r when S=616.
larisa86 [58]

Answer:

the correct answer is 7.

8 0
1 year ago
Read 2 more answers
#10 i The table shows the admission costs (in dollars) and the average number of daily visitors at an amusement park each the pa
lions [1.4K]

The line of best fit is a straight line that can be used to predict the

average daily attendance for a given admission cost.

Correct responses:

  • The equation of best fit is; \underline{ \hat Y = 1,042 - 4.9 \cdot X_i}
  • The correlation coefficient is; r ≈<u> -0.969</u>

<h3>Methods by which the line of best fit is found</h3>

The given data is presented in the following tabular format;

\begin{tabular}{|c|c|c|c|c|c|c|c|c|}Cost, (dollars), x&20&21&22&24&25&27&28&30\\Daily attendance, y&940&935&940&925&920&905&910&890\end{array}\right]

The equation of the line of best fit is given by the regression line

equation as follows;

  • \hat Y = \mathbf{b_0 + b_1 \cdot X_i}

Where;

\hat Y = Predicted value of the<em> i</em>th observation

b₀ = Estimated regression equation intercept

b₁ = The estimate of the slope regression equation

X_i = The <em>i</em>th observed value

b_1 = \mathbf{\dfrac{\sum (X - \overline X) \cdot (Y - \overline Y) }{\sum \left(X - \overline X \right)^2}}

\overline X = 24.625

\overline Y = 960.625

\mathbf{\sum(X - \overline X) \cdot (Y - \overline Y)} = -433.125

\mathbf{\sum(X - \overline X)^2} = 87.875

Therefore;

b_1 = \mathbf{\dfrac{-433.125}{87.875}} \approx -4.9289

Therefore;

  • The slope given to the nearest tenth is b₁ ≈ -4.9

b_0 = \mathbf{\dfrac{\left(\sum Y \right) \cdot \left(\sum X^2 \right) - \left(\sum X \right) \cdot \left(\sum X \cdot Y\right)} {n \cdot \left(\sum X^2\right) - \left(\sum X \right)^2}}

By using MS Excel, we have;

n = 8

∑X = 197

∑Y = 7365

∑X² = 4939

∑Y² = 6782675

∑X·Y = 180930

(∑X)² = 38809

Therefore;

b_0 = \dfrac{7365 \times 4939-197 \times 180930}{8 \times 4939 - 38809} \approx \mathbf{1041.9986}

  • The y-intercept given to the nearest tenth is b₀ ≈ 1,042

The equation of the line of best fit is therefore;

  • \underline{\hat Y = 1042 - 4.9 \cdot X_i}

The correlation coefficient is given by the formula;

\displaystyle r = \mathbf{\dfrac{\sum \left(X_i - \overline X) \cdot \left(Y - \overline Y \right)}{ \sqrt{\sum \left(X_i - \overline X \right)^2 \cdot \sum \left(Y_i - \overline Y \right)^2} }}

Where;

\sqrt{\sum \left(X - \overline X \right)^2 \times \sum \left(Y - \overline Y \right)^2}  = \mathbf{446.8121}

\sum \left(X_i - \overline X \right) \times \left(Y - \overline Y\right) = \mathbf{-433.125}

Which gives;

r = \dfrac{-433.125}{446.8121}  \approx \mathbf{-0.969367213}

The correlation coefficient given to the nearest thousandth is therefore;

  • <u>Correlation coefficient, r ≈ -0.969</u>

Learn more about regression analysis here:

brainly.com/question/14279500

7 0
2 years ago
. Add 91, 129, and 16, and then divide by 44
irga5000 [103]

Answer: 5.36363636364

Step-by-step explanation:

91+ 129+ 16=236

236 ÷44= 5.36363636364

3 0
2 years ago
Read 2 more answers
Other questions:
  • The first term and the common ratio of a G.P are respectively 3 and 1/2.write down the first five terms​
    14·1 answer
  • You need exactly 47 bottles of water. You don’t want to buy more than you need, but you want the least expensive way. List the b
    6·1 answer
  • What is the percentage of 56 out of 70
    14·2 answers
  • Can someone help me?
    5·1 answer
  • 1.2÷0.375−0.2/6 4/25 ÷15 2/5 +0.8 = 0.016÷0.12+0.7/x <br><br> pls solve for x with explaination
    12·1 answer
  • ______________ is when one person observes and follows around another person at their job. A. Job shadowing B. Volunteering C. I
    5·1 answer
  • The area of the playground is one and a half times the swimming pool
    15·1 answer
  • Please help, i really need it
    12·2 answers
  • What is the measure of angle C???
    9·1 answer
  • A group of friends traveled at a constant rate. They traveled 2/5 of a mile in 1/4 of an hour.Which of the following statements
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!