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3 years ago

14

A group of ten 6- and 12-volt batteries are wired in series. The sum of their voltages is 84 volts. How many of each type of bat

tery are used?

1 answer:

rusak2 [61]3 years ago

8 0

...... I need this as well please help us!!!

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What goes up and down without moving?<br> Whoever answers first gets brainliest.

pav-90 [236]

Answer: temperature and weight

Step-by-step explanation: Temperature can increase or decrease/can go up and down without moving. The same goes with weight, it can go up or down without moving.

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3 years ago

Find the least common denominator (LCD) of 10/7 and 1/6 .

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Answer:

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Step-by-step explanation:

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Match each function formula with the corresponding transformation of the parent function y = 3x

kodGreya [7K]

Answer:

1. y = -3^ x Translated up by 1 unit 2.

2.y = 3^ -x Reflected over the y-axis 3.

3.y = 3 ^x - 2 Translated right by 2 units 4.

4. y = 3 ^x + 1 Translated down by 2 units 5.

5. y = 3^ x + 1 Translated left by 1 unit 6.

6. y = 3 ^x - 2 Reflected over the x-axis

Step-by-step explanation:

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3 years ago

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K2-4K-21. How do you factor this

alexira [117]

Assuming yo mean
k²-4k-21

factor by doing
what 2 numbers multipily to get -21 and add to get -4?
-7 and 3

(k-7)(k+3) is factored

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3 years ago

20. (01.03 MC)<br> What is the simplified expression<br> ? (1 point)

ahrayia [7]

Answer:

$\displaystyle 3^2$

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

<u>Algebra I</u>

Exponential Rule [Multiplying]: $\displaystyle b^m \cdot b^n = b^{m + n}$
Exponential Rule [Dividing]: $\displaystyle \frac{b^m}{b^n} = b^{m - n}$

Step-by-step explanation:

<u>Step 1: Define</u>

<u /> $\displaystyle \frac{3^3 \cdot 3^3}{3^4}$ <u />

<u />

<u>Step 2: Simplify</u>

[ER] Multiply: $\displaystyle \frac{3^{3+3}}{3^4}$
Add Exponents: $\displaystyle \frac{3^6}{3^4}$
[ER] Divide: $\displaystyle 3^{6 - 4}$
Subtract Exponents: $\displaystyle 3^2$

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3 years ago