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
gtnhenbr [62]
4 years ago
11

The diameter of a small gear is 16cm. This is 2.5cm more than 1/4 of the diameter of a larger gear. What is the diameter of the

larger gear? Round to the nearest centimeter. 74cm 54cm 44cm 64cm
Mathematics
1 answer:
Ksju [112]4 years ago
8 0
16=1/4 d+2.5
 Where d is diameter of larger gear
16-2.5=1/4d
D=74 cm
You might be interested in
Pls pls pls help me with this
m_a_m_a [10]

Answer:

h=3

Step-by-step explanation:

divided the 21 by the 7

8 0
3 years ago
Which of these best explains the next step to simplify this expression? 3y−45=35y−4 Question 22 options: Make the –4 exponent in
NISA [10]

The value of y from the give expression is 1

<h3>Expressions and equations</h3>

Give the following expression

\frac{3y^{-4}}{5} = \frac{3}{5y^{-4}}

Cross multiply the given expression

3y^{-4}\times 5y^{-4}= 5 \times 3\\15y^{-8}=15\\

Divide both sides by 15

y^{-8}=1\\\frac{1}{y^8} =1\\y^8=1\\y=1

Hence the value of y from the given expression is 1

Learn more on indices here: brainly.com/question/10339517

3 0
3 years ago
Use the given data to find the best predicted value of the response variable. Ten pairs of data yield requals0.003 and the regre
Arada [10]

Answer:

\hat y=3(2) +2=8

Step-by-step explanation:

Data given

r=0.003 represent the correlation coefficient

bar y =5 represent the sample mean for the y observations

Solution to the problem

We assume that they use least squares in order to find the best regression model. The slope is given by 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}

And the slope on this case is:

m=3

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

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

\bar y= \frac{\sum y_i}{n}

And we can find the intercept using this:

b=\bar y -m \bar x=5-(3*\bar x)=2

So the line would be given by:

\hat y=3x +2

And the best predicted value for x=2 would be:

\hat y=3(2) +2=8

3 0
3 years ago
Help and show work for #9
GuDViN [60]

Answer: 11,304mi^2

We're finding area of a circle.

A = pi*r^2

A = pi*60^2

A = pi*3600

A = 11,304mi^2

5 0
4 years ago
Mr. Rodriguez has owned his truck for 3 months. In that time, he has driven the truck a total of 45 miles.
marishachu [46]

Answer:

45 miles

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Other questions:
  • WILL GIVE BRAINLIEST!!!
    15·2 answers
  • SOMEONE PLEASE HELP!!! WORTH 30PTS!!
    11·2 answers
  • (5x−1)(5x+1)&lt;25x^2+2
    5·1 answer
  • What is the ratio of 6 to 26 expressed as a fraction in the simplest form
    7·2 answers
  • If W(-10, 4), X(-3, -1), and Y(-5, 11) classify triangle WXY by its sides.
    8·1 answer
  • A^2 - 10a +24<br><br> How can I factor this equation? Please list steps so I can understand
    14·1 answer
  • Given the arithmetic sequence where a1=-5 and d=6 what is a5
    13·1 answer
  • Who ever gets this will get a brainlest
    13·2 answers
  • It's a yes or no need help​
    7·2 answers
  • What is the simplified form of the following expression? Assume x greater-than-or-equal-to 0 and y greater-than-or-equal-to 0
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!