PLZ HELPPPP!!!!!!! EASY 10 POINTS easy

Mathematics

2 answers:

densk [106]3 years ago

5 0

Answer:

I need 5 Brainliest before I can become Ace

Step-by-step explanation:

mars1129 [50]3 years ago

4 0

Answer:

dialation

Step-by-step explanation: can i hve brainiliest

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A student earned a grade of 80% on a math test that had 20 problems. How many problems on this test did the student answer corre

Nikolay [14]

Answer: 16 questions

Step-by-step explanation:

To find how many problems the student correctly answered on the test, we can turn 80% into a fraction.

$\frac{80}{100} =\frac{16}{20}$

The student answered 16 questions correctly.

The value of (0.3)^4 is 0.0081.

Unless you mean 0.3*4, then it is 1.2.

3 0

3 years ago

1. Change the following into 12 hour clock time<br>a) 1720 hours. b)0235 hours

netineya [11]

Answer:

A) 5:20 pm

B) 2:35 am

Step-by-step explanation:

The hours in am are from 00:00 - 12:00, the numbers after 12 for example 17, you subtract 12 and the remaining is the hours and what is left of the number for example 20 is the minutes.

I am horrible at explaining but I hope this helps... :)

8 0

3 years ago

Read 2 more answers

Let f be the function given by f(x)=3xsinx. What is the average value of f on the closed interval 1≤x≤7 ?

Hoochie [10]

Answer:

-2.92178

Step-by-step explanation:

Given the function $f(x)=3x\ sin x$

The average,A is calculated using the formula;

$A=\frac{1}{b-a}\int\limits^a_b F(x)\, dx \\\\A=\frac{1}{7-1}\int\limits^7_1 3x \ Sin \ x\, dx \\\\\\=\frac{3}{6}\int\limits^7_1 x \ Sin \ x\, dx \\\\\#Integration\ by\ parts, u=x, v \prime=sin(x)\\=0.5[-xcos(x)-\int-cos(x)dx]\limits^7_1\\\\=0.5[-xcos(x)-(-sin(x))]\limits^7_1\\\\=0.5[-xcos(x)+sin(x)]\limits^7_1\\\\=0.5[-6.82595--0.98240]\\\\=-2.92178$