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3 years ago

What two numbers add to make twenty and have a difference of four?

2 answers:

lina2011 [118]3 years ago

6 0

The two numbers that add itself to make the number 20 and to have a difference of the number 4 are the numbers 12 and 8.

lara [203]3 years ago

4 0

The two numbers that add to make twenty and have a difference of 4 are 12 and 8

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Value of the derivative of g(x)=8-10Cosx at 'x=0' is?

VLD [36.1K]

Answer:

g'(0) = 0

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Function Notation

Pre-Calculus

Unit Circle

Calculus

Derivatives
Derivative Notation
The derivative of a constant is equal to 0
Derivative Property: $\frac{d}{dx} [cf(x)] = c \cdot f'(x)$
Trig Derivative: $\frac{d}{dx} [cos(x)] = -sin(x)$

Step-by-step explanation:

Step 1: Define

g(x) = 8 - 10cos(x)

x = 0

Step 2: Differentiate

Differentiate [Trig]: g'(x) = 0 - 10[-sin(x)]
Simplify Derivative: g'(x) = 10sin(x)

Step 3: Evaluate

Substitute in x: g'(0) = 10sin(0)
Evaluate Trig: g'(0) = 10(0)
Multiply: g'(0) = 0

3 0

3 years ago

In AABC, the measure of ZC=90°, the measure of ZA=63°, and AB = 35 feet. Find the

irinina [24]

Answer:

40 feet

Step-by-step explanation:

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3 years ago

Three high school participated in a study to evaluate the effectiveness of a new computer-based mathematics curriculum. Four 24-

snow_tiger [21]

Answer:

A) experimental

B) The important factors are : Type of instruction, scores and High schools,

The factor levels are :

Level -1 which comprises of 3 highschool,

Level -2 which comprises of highschool and the highschool has 4 sections and each section has 24 students

Factor level combinations:

Level 1 : computer and standard based combination

C) Within the subject : 24 students

Between subject : High school

D) score of the test

E) student

Step-by-step explanation:

A) The study is experimental because of the random assignment of two different types of instruction to the students which will control/affect the technique of teaching without just observing the performance of the students from the side

B) The important factors are : Type of instruction, scores and High schools,

The factor levels are :

Level -1 which comprises of 3 highschool,

Level -2 which comprises of highschool and the highschool has 4 sections and each section has 24 students

Factor level combinations:

Level 1 : computer and standard based combination

C) Within the subject : 24 students

Between subject : High school

D) The dependent measure is the score of the test

E) The basic experiment unit of the study is : student

8 0

3 years ago

I need 14 and 16 pls

lisov135 [29]

Answer:

Step-by-step explanation:

14 - If you add all she spent such as (1.95,30.00,7.50) then add it to what she has left over. You get $77.65

16- (63 x 2)+63+6=195

7 0

3 years ago

Sue and Javier are working on a statistics project to estimate the proportion of students at their school who have a pet dog. Su

JulsSmile [24]

Answer:

E) The width of Sue's interval will be narrower than Javiers

Step-by-step explanation:

In confidence intervals, as sample size increases, the width of the confidence interval decreases.

5 0

3 years ago