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
malfutka [58]
3 years ago
8

What is the length of DD'?

Mathematics
2 answers:
Blababa [14]3 years ago
8 0

Answer:

The length of DD' is \sqrt{29} or 5.39 units.

Step-by-step explanation:

The distance formula is

Distance=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

From the given figure it is clear that the coordinates of D are (2,0) and coordinates of D' are (7,2).

Using distance formula we get

DD'=\sqrt{(7-2)^2+(2-0)^2}

DD'=\sqrt{25+4}

DD'=\sqrt{29}

DD'\approx 5.39

Therefore the length of DD' is \sqrt{29} or 5.39 units.

zavuch27 [327]3 years ago
6 0
The length of DD' is 5.39 units.
You might be interested in
For what values of the following expressions are true: |a−5|=5−a
mars1129 [50]

Answer:

Whenever a-5<0 or a<5

Step-by-step explanation:

So if you have an absolute value, that turns into two equations. The one we care about is -(a-5)=5-a. After distributing the negative through the left side of the equation, you'll get that 5-a=5-a, which is an identity. But you can only say that abs(a-5)=5-a when a-5<0. To see a visual representation of this, graph both sides of the equation in desmos.

5 0
4 years ago
PART A:
rusak2 [61]

Answer:

Part B: r = 180/t

Step-by-step explanation:

3 0
3 years ago
Analia wants to know which school has higher athletic achievement relative to the budget per student
user100 [1]

Answer:

SAT average divided by budget per student

Graduation rate divided by budget per student

No. The definitions have opposite results.

Step-by-step explanation:

DID IT ON KHAN and

The key understanding here is that there isn't a single way to define "academic achievement." Graduation rate can be a good measure of that. Average SAT is also a good measure. The rate of students who are accepted into college can also be a good measure, but we are not given information about that.

Now let's go over the options and see which of them might be used to describe "academic achievements relative to the budget per student."

Hint #22 / 4

Definition Analysis Appropriate?

SAT average divided by budget per student "SAT average" is a measure of academic achievement. Dividing this by the budget per student gives us a good definition.

Yes

Yesstart color #1fab54, start text, Y, e, s, end text, end color #1fab54

Graduation rate divided by budget per student "Graduation rate" is a measure of academic achievement. Dividing this by the budget per student gives us a good definition.

Yes

Yesstart color #1fab54, start text, Y, e, s, end text, end color #1fab54

Number of sports medals won divided by budget per student "Number of sports medals won" isn't a measure of academic achievement.

No

Nostart color #e84d39, start text, N, o, end text, end color #e84d39

Graduation rate divided by number of sports medals won "Graduation rate" is a measure of academic achievement, but it's divided by the number of sports medals won, and not by the budget per student.

No

Nostart color #e84d39, start text, N, o, end text, end color #e84d39

Hint #33 / 4

We are left with two definitions for academic achievements relative to the budget per student:

SAT average divided by budget per student

Graduation rate divided by budget per student

Let's calculate the academic achievements relative to the budget per student for each school according to each definition:

School Definition #1 Definition #2

A

≈

0.114

 

student points

dollar

≈0.114

dollar

student points

​

approximately equals, 0, point, 114, start fraction, start text, s, t, u, d, e, n, t, space, p, o, i, n, t, s, end text, divided by, start text, d, o, l, l, a, r, end text, end fraction

≈

0.0082

 

student percents

dollar

≈0.0082

dollar

student percents

​

approximately equals, 0, point, 0082, start fraction, start text, s, t, u, d, e, n, t, space, p, e, r, c, e, n, t, s, end text, divided by, start text, d, o, l, l, a, r, end text, end fraction

B

0.105

 

student points

dollar

0.105

dollar

student points

​

0, point, 105, start fraction, start text, s, t, u, d, e, n, t, space, p, o, i, n, t, s, end text, divided by, start text, d, o, l, l, a, r, end text, end fraction

0.009

 

student percents

dollar

0.009

dollar

student percents

​

0, point, 009, start fraction, start text, s, t, u, d, e, n, t, space, p, e, r, c, e, n, t, s, end text, divided by, start text, d, o, l, l, a, r, end text, end fraction

Which school has higher academic achievements relative to the budget per student? School A School B

[Show me the calculations used for this table.]

Hint #44 / 4

In conclusion:

1) These are the two definitions Analia came up with to define the quantity:

SAT average divided by budget per student

Graduation rate divided by budget per student

2) The definitions have opposite results.

Show Calculator

7 0
3 years ago
PRACTICE AND PROBLEM SOLVING
Tanzania [10]

Answer:

Because they are

Step-by-step explanation:

they ar4

6 0
4 years ago
he length of similar components produced by a company are approximated by a normaldistribution model with a mean of 5 cm and a s
Leviafan [203]

Answer: 0.6826894

Step-by-step explanation:

Given : The length of similar components produced by a company are approximated by a normal distribution model with a \mu= 5 cm and a \sigma=0.02 cm.

Let x be the random variable that represents the length of similar components produced by a company.

z-score : \dfrac{x-\mu}{\sigma}

For x= 4.98

\dfrac{4.98-5}{0.02}=-1

For x= 5.02

\dfrac{5.02-5}{0.02}=1

By using the standard z-value table (right -tailed) , the probability that the length of this component is between 4.98 and 5.02 will be :_

P(4.98

Hence, the probability that the length of this component is between 4.98 and 5.02= 0.6826894

3 0
4 years ago
Other questions:
  • Can anyone help me find the answer to <br><br> 2x+9x+4
    11·1 answer
  • Assignment: Show Me the Sets Investigation
    14·1 answer
  • Really need help Plz
    8·2 answers
  • The solution for a system of two linear equations is (0, 0). Which equation below could be one of the equations in the system? A
    6·1 answer
  • Sherry was in charge of distributing 25 food items that were donated to the local food pantry. on Monday she distributed 8 items
    8·2 answers
  • Latih Diri 2.1b
    11·1 answer
  • A savings bond currently made Jamar $2,112.64 worth of interest in 7 years. If the investment gained 5.5% annual simple interest
    10·1 answer
  • Is the inverse of the function shown below also a function? Explain your answer.
    8·2 answers
  • Question below in photo!! Please answer! Will mark BRAINLIEST! ⬇⬇⬇⬇⬇⬇⬇
    5·1 answer
  • A location on Earth's equator moves approximately 2,075 miles in 2 hours because of Earth's rotation on its axis. At this rate,
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!