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3 years ago

Read and do this is not that hard i know yall can do this

Mathematics

1 answer:

Evgesh-ka [11]3 years ago

7 0

Answer:

parallelograms

Step-by-step explanation:

You might be interested in

Use inductive reasoning to predict the most probable next number in each list.

PolarNik [594]

Answer:

Step-by-step explanation:

First differences increase by 4 each time. The given numbers are a quadratic sequence that can be described by 2n² -2n +9. The 7th term would be 93.

_____

First differences are ...

13-9 = 4, 21-13 = 8, 33-21 = 12, 49-33 = 16, 69-49 = 20

Second differences are ...

8-4 = 4, 12-8 = 4, 16-12 = 4, 20-16 = 4

When second differences are constant, the sequence can be represented by a second-degree polynomial function. The leading coefficient is half the value of the second differences.

3 0

3 years ago

SAT reading and writing section scores of a random sample of twenty 11th-grade students in a certain high school are given below

kvasek [131]

Answer:

The value of test statistics is 25.

Step-by-step explanation:

We are given below the SAT reading and writing section scores of a random sample of twenty 11th-grade students in a certain high school;

380, 520, 480, 510, 560, 630, 670, 490, 500, 550, 400, 350, 440, 490, 620, 660, 700, 730, 740, 560

Let $\sigma$ = population standard of the reading and writing section SAT score of the students in this school

So, Null Hypothesis, $H_0$ : $\sigma \leq$ 100 {means that the reading and writing section SAT score of the students in this school is lesser than or equal to 100}

Alternate Hypothesis, $H_A$ : $\sigma$ > 100 {means that the reading and writing section SAT score of the students in this school is higher than 100}

The test statistics that would be used here is One-sample Chi-square test statistics;

T.S. = $\frac{(n-1)s^{2} }{\sigma^{2} }$ ~ $\chi^{2} __n_-_1$

where, $s^{2}$ = sample variance = $\frac{\sum (X-\bar X)^{2} }{n-1}$ = 13135.8

n = sample of 11th-grade students = 20

So, the test statistics = $\frac{(20-1)\times 13135.8^{2} }{100^{2} }$

= 24.96 ≈ 25

Hence, the value of test statistics is 25.

5 0

4 years ago

Jennifer made 5 liters of punch for her party. Her brother made another 750 mL. If they combine the two batches, how many 180mL

Nat2105 [25]

We know that

1 liter----------------> 1000 ml
Jennifer punch is 5 liters----------------> 5*1000=5000 ml
Her brother punch-------------------------> 750 ml
[total two batches]=(5000+750)----------> 5750 ml

the answer part A) is 5750 ml

Part B) how many 180 mL servings would they have?
[180 mL servings]=5750/180=31.94-----------> 31

they would have 31 (180 ml servings)
punch left over=[5750-31*180]=170 ml
there would be 170 ml of punch left over

7 0

4 years ago

What is the surface area of the rectangular pyramid below?

Murrr4er [49]

The answer is b. 593.8 ft^2
Solve for the height then plug everything in (attachment shows the formula)

7 0

3 years ago

Read 2 more answers

There are 15 girls and 12 boys in Ms. Grady's 6th period class. Ms. Grady

ziro4ka [17]

Answer:

5/9

Step-by-step explanation:

Step 1:

15 + 12

Step 2:

Step 3:

15/27

Step 4:

15/27 = 5/9

Answer:

5/9

Hope This Helps :)

5 0

3 years ago