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
garri49 [273]
3 years ago
8

Liz's math test included a survey question asking how many hours students spent studying for the test. The scatter plot below sh

ows the relationship between how many hours students spent studying and their score on the test.
Which of the following is the best estimate of the average score change associated with a 1 hour increase in study time?

Mathematics
1 answer:
soldier1979 [14.2K]3 years ago
8 0

Answer:

B: 20

Step-by-step explanation:

You might be interested in
Bob is building a wooden cabin. The cabin is 30 meters wide. He obtained a bunch of 17 meters long wooden beams for the roof of
qaws [65]
The roof will be in the shape of an isosceles triangle with a base length of 30 m and two sides that are 17 m. The two 17 m beams will have the same angle of elevation since they have to might in the middle.

So to find the angle of elevation, we can split the roof in half vertically to create a right triangle. The base will now be 15 m, and the hypotenuse will be 17. Now we can use a trigonometry function to solve for the angle. We know the hypotenuse and the side adjacent to the angle, so we can use cosine.

cos(\theta) =  \frac{adjacent}{hypotenuse}

cos(\theta)= \frac{15}{17}

cos^{-1}( \frac{15}{17})=\theta

\theta = 28.1^{\circ}

The answer  is 28.1 degrees
3 0
2 years ago
Countering a cost $9.40 per sales tax. After sales tax, it cost $9.87. What is the sales tax rate?
Nady [450]
STEP 1:
find the sales tax (decimal form)

x= sales tax

Cost + (Cost * Sales Tax)= Total
plug in known numbers

$9.40 + ($9.40 * x)= $9.87

9.40 + 9.40x= 9.87
subtract 9.40 from both sides

9.40x= 0.47
divide both sides by 9.40

x= 0.47/9.40

x= 0.05 sales tax decimal form


STEP 2:
find sales tax percentage

= 0.05 * 100
or move decimal to the right two decimal places

= 5% sales tax percent form


ANSWER: The sales tax is 5% (or 0.05 in decimal form)

Hope this helps! :)
6 0
2 years ago
Read 2 more answers
Plz answer..........
Jobisdone [24]

Answer:

2210.6 m^3

Step-by-step explanation:

Volume of a cylinder is \pi r^2h

V=(3.14)(8)^2(11)\\\\=(3.14)(64)(11)\\\\=2210.56

they want to the nearest tenth, so ≈ 2210.6

6 0
2 years ago
What is the Y-intercept of (y-3)=1/3(x+4)
Debora [2.8K]

Answer: 0,13/3

Step-by-step explanation: Hope this helps - Lily ^_^

3 0
3 years ago
If my radius is 10 what is my circumference
Pavlova-9 [17]

Answer:

Radius, r = 10 cm

Radius, r = 10 cmWe know, Circumference = 2πr=2×π×10=20π cm

The circumference of the circle is

20π cm or about 62.8 cm.

Here's how I did it:

The formula for a circumference of a circle is 2πr , where r is the radius. We can plug our known value of the radius ( 10 cm) into the formula and solve.

2π 10=20π cm or about 62.8 cm.

Step-by-step explanation:

The radius is half as long as the diameter, so the diameter can be thought of as 2r. Keeping this in mind, you can write down the formula for finding the circumference of a circle given the radius: C = 2πr. In this formula, "r" represents the radius of the circle.

Hope it is helpful....

6 0
2 years ago
Other questions:
  • A new soup recipe contains 33% less sodium per serving than the old soup recipe. The old soup recipe contained x milligrams of s
    10·2 answers
  • Martin earned the following scores on his last five tests.
    15·2 answers
  • What is the equation of the following line?<br> Help ASAP
    13·2 answers
  • You have c pounds of cashews and 2.7 pounds of peanuts you have 6 pounds of nuts altogether solv the equation c+2.7 =6 to find h
    9·1 answer
  • Find the MODE of the data set: 5, 3, 7, 3, 9, 1, 7, 11
    15·2 answers
  • If f(x)= x3 - 2x, find f(-2)
    14·1 answer
  • What is the answer to this question? Twice r is 20
    6·1 answer
  • Calculate the size of angle V on the square named FTLP.<br> 18 cm<br> F<br> T<br> c<br> 6<br> P
    5·1 answer
  • 1.688 × 10⁴ = write in standard format​
    8·2 answers
  • Please help this is for my test
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!