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
denis-greek [22]
3 years ago
14

Step by step explanation

Mathematics
1 answer:
SSSSS [86.1K]3 years ago
8 0

Answer:

only a is the right triangle

Step-by-step explanation:

only a is the right triangle because it satisfies the pythagorean theorem.

a.)

c ^{2}  = a ^{2}  + b ^{2}  \\ 63 = 25 + 38\\ 63 = 63 \\ true

while b,

b.)

c ^{2}  = a ^{2}  + b ^{2}  \\ 60 = 25 + 38 \\ 60 = 63 \\ false

You might be interested in
Verizon is implementing a new program based on the number of connected devices in each household. Currently, customers are charg
Amanda [17]

Answer:

d

Step-by-step explanation:

it goes with the correct statements in the sentences it is the right symbol and has the variable for the unknown amount of devices

3 0
3 years ago
Consider the following hypothesis test: H 0: 20 H a: < 20 A sample of 60 provided a sample mean of 19.5. The population stand
viva [34]

Answer:

We reject the null hypothesis and accept the alternate hypothesis. Thus, it be concluded that the population mean is less than 20.          

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 60

Sample mean, \bar{x} = 19.5

Sample size, n = 60

Alpha, α = 0.05

Population standard deviation, σ = 1.8

First, we design the null and the alternate hypothesis

H_{0}: \mu = 20\\H_A: \mu < 20

We use One-tailed z test to perform this hypothesis.

Formula:

z_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{\sigma}{\sqrt{n}} }

Putting all the values, we have

z_{stat} = \displaystyle\frac{19.5 - 20}{\frac{1.8}{\sqrt{60}} } = -2.151

Now, z_{critical} \text{ at 0.05 level of significance } = -1.64

Since,  

z_{stat} < z_{critical}

We reject the null hypothesis and accept the alternate hypothesis. Thus, it be concluded that the population mean is less than 20.

5 0
3 years ago
The ratio of boys to girls at a movie is 3:4 . If there are 16 girls ​, how many boys are at the​ movie?
Annette [7]

Answer:

12 boys

Step-by-step explanation:

  1. Set up a proportion: \frac{3}{4} = \frac{x}{16}  
  2. Cross multiply, then divide: 3 × 16 = 48, 48 ÷ 4 = 12

I hope this helps!

8 0
3 years ago
Read 2 more answers
Heres an easy question,<br><br> What is 50223 - 53253 * 51<br><br> Good luck! ;)
Ivahew [28]
2665680 is the answer
6 0
3 years ago
Read 2 more answers
Can someone please explain how to do this?(Picture above) I'll give brainliest!
Liula [17]

Answer:

f(1)=4

f(-3)=4

f(5)=-2

f(0)=2

f(-1)=0

f(3)=2

Step-by-step explanation:

Pose f(x) as your x value. Now apply to the graph

5 0
3 years ago
Other questions:
  • which of the following expressions does not contain any like terms? a. 2x^2+3x-4x+2 b. xy+yz-17 c. x^3+x^2-2x-x^2 d. 14+8+y
    10·1 answer
  • Match the values associated with this data set to their correct descriptions
    13·2 answers
  • Solve the equation 55=7-6y
    5·2 answers
  • Arlene is showing her work in simplifying −7.9 + 8.2 − 3.4 + 2.1. Identify any errors in her work or in her reasoning. Write fee
    15·1 answer
  • Use Kelly’s steps to simplify this expression.
    10·2 answers
  • Milo had a piece of wrapping paper that was 7 1/2 feet long. He used 3 1/4 feet of the paper to wrap a present. He used a 1 1/2
    13·2 answers
  • Select the graph and the description of the end behavior of f(x) = x3 + 2.
    8·2 answers
  • Hannah places her home on a grid so that each unit square on the grid equates to 1 mile. She uses the fact that the major street
    7·1 answer
  • If the lcm of two numbers a and b is 40 what is the lcm of 7 a^2 and 7b^2
    9·1 answer
  • ANSWER PLS! DUE TODAY!!!
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!