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
Oksi-84 [34.3K]
2 years ago
13

Someone please solve this​

Mathematics
1 answer:
Wittaler [7]2 years ago
8 0

Step-by-step explanation:

2 x  \times  \frac{1}{4}  - 1 \times  \frac{1}{4}  - 2 \frac{1}{4}  = 1 \times  \frac{1}{4}

\frac{2}{8}  -  \frac{1}{4}  -  \frac{2}{8}  =  \frac{1}{4}

and then minus them

You might be interested in
Can we predict how fast a tennis player can hit a serve from the playerâs height? The following computer output and scatterplot
olga_2 [115]

Complete question :

The computer output and scatter plot output pertaining to the question can be found in the attached picture.

Answer:

Kindly check explanation

Step-by-step explanation:

A.) Relationship between height and fastest serve speed :

According to the scatterplot and Correlation Coefficient (R) value which can be obtauned by getting the square root of R²

R = √27.7%

R = 0.5263 = 52.63% ; this depicts a fairly strong positive correlation or relationship between height and fastest serve speed

B.)

Equation of least square regression line :

From the computer output and scatter plot above :

Recall :

y = mx + c

y =predicted variable (s fastest serve)

m= slope

x = predictor variable (height)

c = intercept

y = 84.98x + 68.81

C.) 27.7% of the variation in fastest speed can be explained by height while the remaining percentage is due to other variables

D.) fastest serve of tennis player with height 1.7m

y = 84.98x + 68.81

y = 84.98(1.7) + 68.81

y = 213.276km/hr

E.)

R = √27.7%

R = 0.5263 = 52.63% ; this depicts a fairly strong positive correlation or relationship between height and fastest serve speed

F.)

Height = 2.06m = x

y = 84.98(2.06) + 68.81

y = 243.8688 km/hr

Residual = Actual - predicted

Actual = 230 ; predicted = 243.8688

Residual = 230 - 243.8688

Residual = −13.8688

Hence, the model overestimated fastest serve speed of a 2.06 m tall player by −13.8688 km/hr

3 0
3 years ago
Kevin just bought a refrigerator for 469. He paid 140.60 in a down payment and will pay the rest in equal installments. How much
enyata [817]

Answer:

$54.73 monthly installment for 6 months.

Step-by-step explanation:

Kevin just bought a refrigerator for $469.

He paid $140.6 in down payment and will pay the rest in equal installments.

If Kevin does not have to pay any interest and he will pay the rest amount in 6 months with monthly installments,  

Then, the value of each installment will be = \frac{469 - 140.60}{6} = 54.73 Dollars. (Answer)

4 0
3 years ago
Which of the following scatterplots do not show a clear relationship and would not have a trend line?
UNO [17]
The second one because the points are all over, whereas the first one seems to have a positive trend - as x increases y increases.

Hope this helps!
4 0
2 years ago
80^2 - 45^2 = a^2 - b^2 <br><br> ans pls in working, thnx in advance
Kamila [148]

Answer:

{a}^{2}  -  {b}^{2}= {(80)}^{2}  -{(45)}^{2}  \\(a + b)(a - b) = (80 + 45)(80 - 45) \\  = 125 \times 35 = \boxed{ 4375}✓

<h3><u>4375</u> is the right answer.</h3>
4 0
3 years ago
(Help Please)
saveliy_v [14]
He will take 1/3 load of rock on the last load
6 0
3 years ago
Other questions:
  • Which mapping diagram shows the inverse of p(x)?
    12·2 answers
  • Gina walked 2/3 mile to a baseball field from her school. She then walked 1/4 mile home. About how many miles did Gina walk?
    6·1 answer
  • Witch property does 21 times 9 equals 9 times 21
    9·1 answer
  • Anwer question bellow
    11·1 answer
  • What is the surface area of this square pyramid?
    8·1 answer
  • The high temperature x (in degrees centigrade) during winter-time in washington
    11·1 answer
  • Carly has already written 35 pages of a novel. She plans to write 12 additional pages per month until she is finished. Write a l
    12·2 answers
  • What is the measure of angle LMN ?
    7·2 answers
  • PLZ HELP!! NEED QUICKLY!!<br> Fill In The Blanks!!
    9·1 answer
  • A rectangular prism has length of 5 feet and a width of 9 feet. If the surface area of the prism is 174 square feet,
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!