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
Dafna1 [17]
2 years ago
13

Please help!

Mathematics
2 answers:
SSSSS [86.1K]2 years ago
5 0

A the correct answer pa brainless po

Morgarella [4.7K]2 years ago
4 0

Answer:

substitution

Step-by-step explanation:

Vertical angles are applicable for parallel lines.

Here the scenario is triangles share a side means they have one common side.

So we can substitute that sides triangle ratios to another triangle

You might be interested in
When buying snacks for her classroom, Ms. Davis bought 4 bags of mixed nuts and 8 bags of pretzels. A bag of pretzels costs $1.5
vfiekz [6]

Answer:

C

Step-by-step explanation:

The snacks altogether (Pretzels and Nuts) cost 57 dollars.

3 0
3 years ago
Read 2 more answers
Whats the extreme value?y=3(x+5)^(2)-4
natta225 [31]

Answer:

-4

Step-by-step explanation:

  • y = 3(x+5)²-4
  • y= 3(x²+10x+25)-4
  • y= 3x²+30x+75-4
  • y= 3x²+30x+71

Derivate the function

  • y' = 6x+30

solve the equation y'= 0

  • y'= 6x+30
  • 6x+30= 0
  • 6x= -30
  • x = -5

The extrme value of y is reached in -5

y = 3(-5+5)²-4= -4

6 0
3 years ago
Solve this equation 3x-√6y=3​
Hunter-Best [27]

Answer:

Step-by-step explanation:

3

x

−

6

y

=

3

Rewrite in slope-intercept form.

Tap for more steps...

y

=

1

2

x

−

1

2

Using the slope-intercept form, the y-intercept is  

−

1

2

.

b

=

−

1

2

Tap for more steps...

y

=

1

2

x

−

1

2

Using the slope-intercept form, the slope is  

1

2

.

m

=

1

2

3 0
3 years ago
The manager of a grocery store has taken a random sample of 100 customers. The average length of time it took the customers in t
andreyandreev [35.5K]

Answer:

The test statistic is c. 2.00

The p-value is a. 0.0456

At the 5% level, you b. reject the null hypothesis

Step-by-step explanation:

We want to test to determine whether or not the mean waiting time of all customers is significantly different than 3 minutes.

This means that the mean and the alternate hypothesis are:

Null: H_{0} = 3

Alternate: H_{a} = 3

The test-statistic is given by:

z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}

In which X is the sample mean, \mu is the value tested at the null hypothesis, \sigma is the standard deviation and n is the size of the sample.

Sample of 100 customers.

This means that n = 100

3 tested at the null hypothesis

This means that \mu = 3

The average length of time it took the customers in the sample to check out was 3.1 minutes.

This means that X = 3.1

The population standard deviation is known at 0.5 minutes.

This means that \sigma = 0.5

Value of the test-statistic:

z = \frac{X - \mu}{\frac{\sigma}{\sqrt{n}}}

z = \frac{3.1 - 3}{\frac{0.5}{\sqrt{100}}}

z = 2

The test statistic is z = 2.

The p-value is

Mean different than 3, so the pvalue is 2 multiplied by 1 subtracted by the pvalue of Z when z = 2.

z = 2 has a pvalue of 0.9772

2*(1 - 0.9772) = 2*0.0228 = 0.0456

At the 5% level

0.0456 < 0.05, which means that the null hypothesis is rejected.

7 0
3 years ago
A scuba diver starts 8 feet below sea level. She then dives down another 13 feet. Which expression gives her total number of fee
scoray [572]

I see this as a basic equation.

If she starts at point x, 8 feet, then goes down another 13, she is adding to the number of feet she traveled down.

So your answer would be 8+13=21

If this isn't what you needed, because I am not sure what math you are taking, let me know if I can help you more!


3 0
3 years ago
Read 2 more answers
Other questions:
  • Help Please
    13·2 answers
  • A plane can fly 540 miles with the wind in one hour less than it can fly 480 miles against the wind. The average wind speed is 3
    10·1 answer
  • Plz help ill give u brainlist
    11·1 answer
  • Terry owns a triangular piece of land that has three corner fence poles at A, B,and C. The three poles are plotted on a grid in
    13·1 answer
  • Write an expression that matches the words 23 less than the sum of 103 and ten
    11·2 answers
  • Calculate the area of the triangle.
    10·2 answers
  • Find the exact value of each variable. Will Get BRAINLIEST If Questions Are Correct.
    11·2 answers
  • F(x) = 3x <br>reflected over y-axis​
    10·1 answer
  • What is the value of x? Enter your answer in the box.
    13·1 answer
  • What is y= (x+2) ^2 vertex, axis of symmetry, direction of opening, max or min and y intercept
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!