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Vesnalui [34]
4 years ago
8

Simplify the sum. (7u^3 + 8u^2 + 7) + (8u^3 – 3u + 7)

Mathematics
2 answers:
Maslowich4 years ago
6 0

Answer:

15u^3 + 8u^2 - 6u + 13  

Step-by-step explanation:

(7u^3 + 8u^2 + 8) + (8u^3 - 6u + 5)  

= 7u^3 + 8u^2 + 8 + 8u^3 - 6u + 5  

= 7u^3 + 8u^3 + 8u^2 - 6u + 5 + 8  

*Now add the like terms  

= 15u^3 + 8u^2 - 6u + 13  

And that is all your can do!

mihalych1998 [28]4 years ago
3 0

15u^3 +8u^2 - 3u + 14

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Please help! Tysm! Picture of figure is attached.
miss Akunina [59]

Step-by-step explanation:

Notice that KM = 0.5BC, KL = 0.5AC

and ML = 0.5AB. Therefore the perimeter of triangle KLM is half of the perimeter of triangle ABC. => 0.5 * 24cm = 12cm.

Each of the 3 purple triangles have perimeters which are 1/4 of the perimeter of triangle ABC. (Their vertices are midpoints of midpoints => 1/2 * 1/2)

Perimeter of 3 small purple triangles

= 3 * [24cm * (1/4)]

= 3 * 6cm = 18cm.

Hence Total perimeter of shaded parts

= 12cm + 18cm = 30cm.

8 0
3 years ago
The vertex of the parabola below is at the point (1, -2). Which of the following
Minchanka [31]

Answer:

A. y=\left(x-1\right)^{2}-5

Step-by-step explanation:

I graphed my answer on the graph below and it matches your graph.

4 0
3 years ago
Maggie has a container in the shape of a right prism . The formula for its surface area is SA = Ph + 2B solve for h.
8090 [49]

Answer:

The choose first.

h =  \frac{SA - 2B}{P}

Step-by-step explanation:

SA = Ph + 2B \\  \\ Ph = SA - 2B \\  \\ h =  \frac{SA - 2B}{P}

I hope I helped you^_^

7 0
3 years ago
Write the ratio for tan A. ​
qaws [65]

Step-by-step explanation:

With reference angle A

perpendicular (p) = 3

base (b) = 4

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= 3/4

Hope it will help :)❤

5 0
3 years ago
I need help REALLY FAST what is the distance between the points (-1, -3 3/4) and (-1, 4 1/2) ?
kodGreya [7K]

Answer:

8 1/4

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right<u> </u>

<u>Algebra I</u>

  • Coordinates (x, y)

<u>Algebra II</u>

  • Distance Formula: \displaystyle d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Identify</em>

Point (-1, -3.75)

Point (-1, 4.5)

<u>Step 2: Find distance </u><em><u>d</u></em>

Simply plug in the 2 coordinates into the distance formula to find distance <em>d</em>

  1. Substitute in points [Distance Formula]:                                                         \displaystyle d = \sqrt{(-1--1)^2+(4.5--3.75)^2}
  2. [√Radical] (Parenthesis) Subtract:                                                                   \displaystyle d = \sqrt{(0)^2+(8.25)^2}
  3. [√Radical] Evaluate exponents:                                                                       \displaystyle d = \sqrt{0+68.0625}
  4. [√Radical] Add:                                                                                                 \displaystyle d = \sqrt{68.0625}
  5. [√Radical] Evaluate:                                                                                          \displaystyle d = 8.25
4 0
3 years ago
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