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
iragen [17]
3 years ago
8

Suppose Triangle ABC has vertices A(-2,10), B(-4,5) and C(3,2). It is dilated with a scale factor of ¼. What are the vertices of

the image after the dilation? Write a mathematical argument that can be used to defend your solution. PLSSS HELP ASAP WILL GIVE BRAINLY PLSSSS
Mathematics
2 answers:
stiv31 [10]3 years ago
4 0

Answer:

26

Step-by-step explanation:

Kruka [31]3 years ago
4 0
26 what that person had said
You might be interested in
Which polynomial is equivalent to this expression if n≠-1n≠-1? 3+n−2n21+n?
Irina18 [472]
I suppose that the expression you wanted to write is \frac{3+n-2n^2}{1+n}. If so, then we have:

\frac{3+n-2n^2}{1+n}= \frac{3+3n-2n-2n^2}{1+n}  \\  \\ = \frac{3(1+n)-2n(1+n)}{1+n} = \frac{(3-2n)(1+n)}{1+n}  \\  \\ =3-2n
7 0
3 years ago
Read 2 more answers
The state education commission wants to estimate the fraction of tenth grade students that have reading skills at or below the e
Korolek [52]

Answer:

A sample of 499 is needed.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

z is the zscore that has a pvalue of 1 - \frac{\alpha}{2}.

The margin of error is given by:

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

In this question, we have that:

\pi = 0.21

90% confidence level

So \alpha = 0.1, z is the value of Z that has a pvalue of 1 - \frac{0.1}{2} = 0.95, so Z = 1.645.

How large a sample would be required in order to estimate the fraction of tenth graders reading at or below the eighth grade level at the 90% confidence level with an error of at most 0.03

We need a sample of n, which is found when M = 0.03. So

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

0.03 = 1.645\sqrt{\frac{0.21*0.79}{n}}

0.03\sqrt{n} = 1.645\sqrt{0.21*0.79}

\sqrt{n} = \frac{1.645\sqrt{0.21*0.79}}{0.03}

(\sqrt{n})^2 = (\frac{1.645\sqrt{0.21*0.79}}{0.03})^2

n = 498.81

Rounding up

A sample of 499 is needed.

8 0
3 years ago
I don’t understand how to solve this
Bezzdna [24]

Answer:

42.1

Step-by-step explanation:

The height of the main triangle is,

h = 47√3/2 (since it's an 30-60-90 triangle)

so to find x,

tan(44) = h/x

x = h/tan(44)

x = 42.1 (rounded to the nearest tenth)

Answered by GAUTHMATH

8 0
3 years ago
Matthew is 7 years older than twice the age of his sister. If Matthew is 13, how old is his sister?
Iteru [2.4K]
Let sister be s.  Matthew, M

Matthew is 7years older than twice the age of his sister

M = 7 + 2s

13 = 7 + 2s.   7 crosses the equality to other side and becomes -7

13 - 7 = 2s

6 = 2s    Divide both sides by 2

6/2 = 2s/2

3 = s

Sister is 3 years old.
8 0
3 years ago
Read 2 more answers
Can someone help me find out this question :) ? thanks <3 for 8th grade algebra
Assoli18 [71]

Answer:

4,500,000 population in 1950

Step-by-step explanation:

the equation is 4p + 1,000,000 = 19,800,000

3 0
3 years ago
Other questions:
  • (5i^{2} -3) * (6i *2^{6})
    14·1 answer
  • James has a job with a current salary of $42,000. He wants to earn a college degree that will take him 2 years to complete and i
    15·2 answers
  • Factor 7x^4 - 63<br><br>please I can't afford to fail my homework
    8·1 answer
  • Mia is 160.2 centimeters tall.Rosa is 165.1 centimeters tall.how much taller is Rosa the Mia?
    8·2 answers
  • Can someone help me out with this question plz
    12·1 answer
  • Will mark brainliest
    13·2 answers
  • Help Me in this math question ASAP​
    8·1 answer
  • Damien is buying tickets to a movie. The movie he and his friends want to watch cost $4.85 per ticket. Damien has $32.00 total.
    7·2 answers
  • PLEASE HELP PLEASE I REALLY NEED HELP JUST SAY LIKE ABC OR D AND PLEASE DO THE CORRECT ANSWER​
    8·1 answer
  • What is 13/25 in decimal form​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!