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
AlladinOne [14]
2 years ago
9

Help with this problem

Mathematics
2 answers:
Juli2301 [7.4K]2 years ago
8 0

sorry can u delete this my answer is wrong lol

Leokris [45]2 years ago
7 0

Answer:

18

Step-by-step explanation:

side length of triangle RST is 4 ✓ 3, 3 ✓ 3

So, area of triangle RST = 1/2 × 4✓ 3 × 3✓ 3 =18

You might be interested in
What multiplys by 11/2 gets to15/4?<br> please fast helpppppppp
r-ruslan [8.4K]

Answer: 11/2 x 15/4 = 165 /8  = 205 /8 = 20.625


Step-by-step explanation:

Multiple: 11 /2  * 15 /4  = 11 · 15 2 · 4  = 165 /8

Multiply both numerators and denominators.

5 0
3 years ago
Read 2 more answers
HELP LOOK AT THE SCREENSHOT<br><br> Find the value of x. (SHOW WORK)
Vanyuwa [196]

Answer:  x = 2

=============================================================

Explanation:

Refer to the diagram below.

I've added points D,E,F,G. This helps with labeling the segments and angles, and identifying the proper triangles (to see which are congruent pairs).

Triangle GEA is congruent to triangle GFA. We can prove this using the AAS congruence theorem. We have AG = AG as the pair of congruent sides, and the congruent pairs of angles are marked in the diagram (specifically the blue pairs of angles and the gray right angle markers)

Since triangle GEA is congruent to triangle GFA, this means the corresponding pieces segment GF and GE are the same length.

The diagram shows GF = 3x-4, so this means GE = 3x-4 as well.

----------------------

Through similar steps, we can show that triangle GEC is congruent to triangle GDC. We also use AAS here as well.

The congruent triangles lead to GD = GE. So GD = 3x-4. The diagram shows that GD = 6x-10

Since GD is equal to both 3x-4 and 6x-10, this must mean the two expressions are equal.

----------------------

Now let's solve for x

6x-10 = 3x-4

6x-3x = -4+10

3x = 6

x = 6/3

x = 2

4 0
3 years ago
In order to ensure efficient usage of a server, it is necessary to estimate the mean number
juin [17]

Answer:

a. [36.19;39.21]

b. Reject the null hypothesis. The population mean of users that are connected at the same time is greater than 35.

Step-by-step explanation:

Hello!

Your study variable is,

X: "number of users of one server at a time"

The objective is to estimate the mean, for this, a sample of n=100 times was taken and the standard deviation S= 9.2 and the sample mean is X[bar]= 37.7 were calculated.

You need to study the population mean, for this you need your variable to have at least normal distribution. Since you don't have information about its distribution, but the sample is big enough (n≥30) you can apply the Central Limit Theorem and approximate the distribution of the sample mean X[bar] to normal:

X[bar]≈N(μ;σ²/n)

a. With this approximation, you can construct the 90% Confidence Interval using the approximate Z

[X[bar] ± Z_{1-\alpha /2} * S/√n]

Z_{1-\alpha /2} = Z_{0.95} = 1.64

[37.7± 1.64* 9.2/√100]

[36.19;39.21]

b. You need to test if the population mean is greater than 35 with a level of significance of 1%.

The hypothesis is:

H₀: μ ≤ 35

H₁: μ > 35

α: 0.01

This is a one-tailed test so you have only one critical level (right tail):

Z_{1\alpha } = Z_{0.99} = 2.33

This means that if the value of the calculated statistic is equal or greater than 2.33 you will reject the null Hypothesis.

If the value is less than 2.33 you will support the null hypothesis.

The statistic is:

Z=<u> X[bar] - μ </u>= <u> 37.7 - 35 </u> = 2.93

       S/√n           9.2/10

The value 2.93 > 2.33, so you reject the null hypothesis. This means that the population mean of users that are connected at the same time is greater than 35.

<u><em>Note: </em></u><em>To make the decision using the interval calculated on a), the hypothesis should have been two-tailed and the confidence and significance levels complementary.</em>

I hope it helps!

7 0
3 years ago
Help please gbnhhbbnhfgnrjttnettyjnry
mafiozo [28]
The third one is the answer
4 0
2 years ago
Read 2 more answers
Sheleah and her family are planning a trip from Los Angeles, California to Melbourne, Australia. While booking her family's plan
lina2011 [118]
Positive because when I looked at the graph, the scattered plots are increasing up.
3 0
3 years ago
Other questions:
  • Which is the graph of the following inequality?
    8·1 answer
  • May I Please Get Help With Questions 2 and 4
    11·1 answer
  • What is 1/100 of 605
    15·2 answers
  • Plz hurry <br><br>evaluate the expression<br> a+b where a=8 and b=19
    12·1 answer
  • Help....................
    14·1 answer
  • A circle has a diameter of 16 centimeters.
    6·1 answer
  • Susan wants to take her school picture that measures 4 inches by 6 inches and enlarge it to make a picture that measures 8 inche
    9·2 answers
  • Help please<br><br>there us a picture <br><br>A. 2<br>B. 3<br>C. 8<br>D. 10​
    8·1 answer
  • Do we, as a society, rely on technology too much?
    8·2 answers
  • Can someone help me with this problem? thanks!
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!