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2 years ago

Can you help me find surface area of this prism?

Mathematics

1 answer:

navik [9.2K]2 years ago

8 0

Answer:

400 cm²

Step-by-step explanation:

Triangles: 1/2x15x8=60 (two of those)

Base: 8x7=56

Back: 15x7=105

Sloped side: 7x17=119

60+60+56+105+119=400 cm²

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Mrs.Baca uses a phone card to call her relatives in Colombia.It costs her 45 cents to talk for 15 minutes.How long can she talk

zysi [14]

45/15= 3

So 1 minute=3 cents

75*3=225=2.25 converted

75 minutes=$2.25

6 0

2 years ago

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Find the average rate of change for fx) = x2 – 3x – 10 from x = 4 to x = 6.

Leviafan [203]

Answer:

Step-by-step explanation:

The rate of change is defined as

f(x2) - f(x1)

--------------------

x2-x1

x2 = 6

f(6) = x^2 – 3x – 10 = 6^2 -3*6 -10 = 36 - 18-10=8

x1 = 4

f(4) = x^2 – 3x – 10 = 4^2 -3*4 -10 = 16 - 12-10=-6

Substitute the values into the expression

8 - -6

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2 years ago

Draw a box and whiskers plot for 7,9,21,8,13,19

Nat2105 [25]

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(See photo for the box and whiskers plot)

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3 years ago

Select the correct answer.

lorasvet [3.4K]

Answer:

A. 5x^2 - 2x - 12 = 0

Step-by-step explanation:

The base is x feet.

The height is 2 less that 5 times the base.

The height is 5x - 2.

The area is 12.

The area is base * height / 2.

area = bh/2

area = x * (5x - 2) = 12

5x^2 - 2x = 12

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2 years ago

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Can somebody plsss find the slop ASAP!!!!!

Oksanka [162]

Answer:

$m=-2$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Slope Formula: $m=\frac{y_2-y_1}{x_2-x_1}$

Step-by-step explanation:

Step 1: Define

Find points from graph.

Point (0, 0)

Point (1, -2)

Step 2: Find slope m

Substitute: $m=\frac{-2-0}{1-0}$
Subtract: $m=\frac{-2}{1}$
Divide: $m=-2$

6 0

2 years ago