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2 years ago

How many decimal places are in the product of 1.91 and 2.3?

Mathematics

2 answers:

san4es73 [151]2 years ago

8 0

Answer:

Step-by-step explanation:

2+1 = 3

Dahasolnce [82]2 years ago

8 0

Answer:

Step-by-step explanation:

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What is the effect on the area of a rectangle if the dimensions are doubled?

alisha [4.7K]

Let x be the length and y be the width of a rectangle.
Area = xy

When x and y are doubled
Length = 2x and Width = 2y
Area = 2x x 2y
Area = 4xy

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Answer: When the dimension is doubled, the area is 4 times the original.
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3 years ago

Which describes the graph of y=(x+6)^2+1?

Fittoniya [83]

C. Vertex at (-6,1)

3 0

3 years ago

Determine the value of k

KATRIN_1 [288]

Answer:

$\displaystyle k = 6$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Equality Properties

Multiplication Property of Equality
Division Property of Equality
Addition Property of Equality
Subtraction Property of Equality

Algebra I

Functions
Function Notation

Algebra II

Piecewise Functions

Calculus

Limits
Continuity

Step-by-step explanation:

Step 1: Define

Identify

Continuous at x = 2

$\displaystyle f(x) = \left \{ {{2x^2 \ if \ x < 2} \atop {x + k \ if \ x \geq 2}} \right.$

Step 2: Solve for k

Definition of Continuity: $\displaystyle \lim_{x \to 2^+} 2x^2 = \lim_{x \to 2^-} x + k$
Evaluate limits: $\displaystyle 2(2)^2 = 2 + k$
Evaluate exponents: $\displaystyle 2(4) = 2 + k$
Multiply: $\displaystyle 8 = 2 + k$
[Subtraction Property of Equality] Subtract 2 on both sides: $\displaystyle 6 = k$
Rewrite: $\displaystyle k = 6$

Topic: AP Calculus AB/BC (Calculus I/II)

Unit: Limits - Continuity

Book: College Calculus 10e

4 0

3 years ago

Read 2 more answers

What is 16% of 750?

alisha [4.7K]

Answer:

120

Step-by-step explanation:

For this, all we have to do is multiply 750 by 16%. We know, from percent to decimal conversion, that 16% is 0.16 (divide the percent by 100 to convert to a decimal). From there, if we multiply 750 by 0.16, we get our answer to be 120

8 0

2 years ago

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Find the point of intersection of the pair of straight lines Y= -7x - 4 -y = 8x + 9

Aleonysh [2.5K]

Answer:

(-5,31)

Step-by-step explanation:

See image.

4 0

3 years ago