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Maurinko [17]
3 years ago
11

Find the sum of 4x^3 + 6x^2 +2x - 3 and 3x^3 +3x^2 -5x -5

Mathematics
1 answer:
r-ruslan [8.4K]3 years ago
3 0

Answer:

7x³ + 9x² - 3x - 8

Step-by-step explanation:

4x³ + 6x² + 2x - 3 + 3x³ + 3x² - 5x - 5 ← collect like terms

= 7x³ + 9x² - 3x - 8

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HIIIIII 2 QUESTIONS IN THE 2 PICS HELP PLS
skelet666 [1.2K]

Answer:

(1)C- Trapezoid

(2)D-20 square feet

Step-by-step explanation:

<u>Question 1</u>

A cross-section of a rectangular pyramid cut perpendicular to the base but not passing through the top will have two parallel sides where one of the sides will be longer. Therefore, the shape which describes the cross-section will be a trapezoid.

<u>Question 2</u>

The base of the Triangle = 5 feet

Height of the Triangle = 8 feet

\text{Area of a triangle}=\dfrac12 \times $Base  \times Height\\=\dfrac12 \times 5  \times 8\\=20 ft^2

3 0
4 years ago
HELP MATH ASAP! I GIVE BRAINLIEST
aliya0001 [1]
The answer would be 0.
6 0
3 years ago
What is the domain in interval notation?
Free_Kalibri [48]

Hello!


Interval notation is written using brackets or parentheses. Brackets mean that the value of the corresponding side is equal to the function. Parentheses are the opposite of brackets in this case, and it is not part of the equation.


I will post the graph of this equation below.


Therefore, the domain of this equation in interval notation is (-∞, 6/7).


Note that it is parentheses not brackets. The graph does not go past 6/7, and infinity is not a number, it is a concept.

3 0
4 years ago
Put into slope intercept form:(-4, 1); m= -2/3
zaharov [31]
Y = mx + b
slope(m) = -2/3
(-4,1)...x = -4 and y = 1
now we sub and find b, the y int
1 = -2/3(-4) + b
1 = 8/3 + b
1 - 8/3 = b
3/3 - 8/3 = b
-5/3 = b

so ur equation is : y = -2/3x + (-5/3) which can be written as : y = -2/3x - 5/3
7 0
3 years ago
Mr.Steve drove 92 miles using 4 gallons of gasoline. Find the unit rate of miles driven per gallon.
Ede4ka [16]

Answer:23


Step-by-step explanation:

92/4

7 0
3 years ago
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