3 years ago

A teacher asked the class to solve the equation 3(x + 2) = 21.

Mathematics

2 answers:

inna [77]3 years ago

8 0

Distributive property

Readme [11.4K]3 years ago

3 0

Distributive, he distributed the 3 among the paranthesis

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A single ice skating pass costs $2.75. A monthly pass costs $24.00. Peter estimates he will go skating 8 times this month and Ju

trasher [3.6K]

Answer:

Yes they should.

Step-by-step explanation:

If they both buy it peter will only be spending 2 dollars more but justin will be spending $9 less

Mark Brainlies plsss

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3 years ago

If (4x−7)2=ax2+bx+c for all values of x, what is the value of c(b+a)?

ollegr [7]

Answer:

-1960

Step-by-step explanation:

The expression on the left expands to ...

(4x -7)² = (4x)² +2(4x)(-7) +(-7)² = 16x² -56x +49

Matching coefficients, you have ...

a = 16
b = -56
c = 49

Then the expression c(b+a) evaluates to ...

49(-56+16) = 49(-40) = -1960

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3 years ago

What point do all graphs of the form y=a^x where ≠ 0 have in common?

suter [353]

Answer is A.(0, 1)
because
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so (0,1)

hope it helps

3 0

3 years ago

Read 2 more answers

Find the derivative using the limit process of f (x) = - 10x

zubka84 [21]

Answer:

$\frac{d}{dx} f(x) =-10$

General Formulas and Concepts:

Calculus

Derivative Notation
Definition of a Derivative: $\lim_{h \to 0} \frac{f(x+h)-f(x)}{h}$

Step-by-step explanation:

Step 1: Define

f(x) = -10x

Step 2: Find Derivative

Substitute: $\frac{d}{dx} f(x)= \lim_{h \to 0} \frac{-10(x + h)-(-10x)}{h}$
Distribute -10: $\frac{d}{dx} f(x)= \lim_{h \to 0} \frac{-10x -10h-(-10x)}{h}$
Distribute -1: $\frac{d}{dx} f(x)= \lim_{h \to 0} \frac{-10x -10h+10x}{h}$
Combine like terms: $\frac{d}{dx} f(x)= \lim_{h \to 0} \frac{-10h}{h}$
Divide: $\frac{d}{dx} f(x)= \lim_{h \to 0} -10$
Evaluate: $\frac{d}{dx} f(x)=-10$

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4 years ago

Tonya took out a loan to help pay for her house. She borrowed $30,000 for 15 years at a yearly simple interest rate of 5%. How m

Neporo4naja [7]

Interest=30,000×0.05×15=22,500

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4 years ago