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
drek231 [11]
2 years ago
11

What is the sum of 7/9 + 3/5 A5/7 B 4/15 C 1 17/45 D 1 27/45

Mathematics
1 answer:
Nimfa-mama [501]2 years ago
4 0

Answer:

The correct answer is C

Step-by-step explanation:

The answer is "1 17/45"

You might be interested in
A data set includes 103 body temperatures of healthy adult humans having a mean of 98.9degreesf and a standard deviation of 0.67
trasher [3.6K]

Answer:

Step-by-step explanation:

Confidence interval is written in the form,

(Sample mean - margin of error, sample mean + margin of error)

The sample mean, x is the point estimate for the population mean.

Margin of error = z × s/√n

Where

s = sample standard deviation = 0.67

n = number of samples = 103

From the information given, the population standard deviation is unknown hence, we would use the t distribution to find the z score

In order to use the t distribution, we would determine the degree of freedom, df for the sample.

df = n - 1 = 103 - 1 = 102

Since confidence level = 99% = 0.99, α = 1 - CL = 1 – 0.99 = 0.01

α/2 = 0.01/2 = 0.005

the area to the right of z0.005 is 0.005 and the area to the left of z0.005 is 1 - 0.005 = 0.995

Looking at the t distribution table,

z = 2.6249

Margin of error = 2.6249 × 0.67/√103

= 0.173

Confidence interval = 98.6 ± 0.173

This suggests that the mean body temperature could very possibly be

98.6degrees°F.

3 0
3 years ago
Determine which functions have two real number zeros by calculating the discriminant, b2 - 4ac. Check all that
Nuetrik [128]
Find the standard form of the equation of the parabola with a focus at (-4, 0) and a directrix at x = 4.
8 0
3 years ago
Read 2 more answers
Seth goes to the farmers' market every month to buy some of Ms. Wells's homemade jam. The jam costs $5 per jar. Last weekend, Ms
ELEN [110]

Answer:

add

Step-by-step explanation:

4 0
3 years ago
Please help im doing my girl friend work and i dont know not a thing
Nadusha1986 [10]

Answer:

See below, please!

Step-by-step explanation:

We can set up a system of equations to model this problem. Let's consider the student's ticket as x, and y for the adult ticket.

So since the student ticket is $1.50, and adult is $4, we can set up the following equation: 1.5x+4y=5050, since they collected $5050 total.

We can set up another equation modeling the number of people who came to the game. This would be x+y=2200.

Solve this, and we get x= 1500 and y=700. So, they sold 1500 student tickets and 700 adult tickets.

Hope this helped!

4 0
2 years ago
Identify the slope-intercept form and the graph of the line described by the equation 2x−y=0.
vitfil [10]

Answer: y=2x

Step-by-step explanation:

Let's solve for y.

Step 1: Add -2x to both sides.

2x−y+−2x=0+−2x

−y=−2x

Step 2: Divide both sides by -1.

-y/-1 = -2x.-1

y=2x

Therefore, the y=mx+b form of this question would be y=2x

7 0
3 years ago
Read 2 more answers
Other questions:
  • 10 3/4 -7 1/4 subtracting mixed numbers???
    10·1 answer
  • Simplify the expression where possible.<br><br> (-5x2)^3
    10·1 answer
  • Which of the statements about the graph of the function y = 2x are true? Check all of the boxes that apply. The domain is all re
    14·2 answers
  • sales in the printing business have doubled for james in each of the last three months. during the last month, he made a profit
    13·1 answer
  • Simplify the expression: <br> 10x–8xy–3xy<br><br> 2ab–7ab+7a2<br><br> –a^4+2a^3–4a^4+2a^2–3a^2
    5·1 answer
  • NO LINK OR IM REPORTING ( 3 extra points if you don’t give me links;) )
    13·2 answers
  • Se desean plantar 361 plantas de limón, en un terreno cuadrado, de manera que en cada fila queden a un metro de distancia.
    12·1 answer
  • 15-2X = -45 how do I show My work for this?
    7·2 answers
  • Pleassee help me !!!!!
    14·2 answers
  • Help please!! will give brainiest :))
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!