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3 years ago

Is this a polygon or trapezoid?

Mathematics

2 answers:

atroni [7]3 years ago

8 0

Answer:

Step-by-step explanation:

this is my opinion so No

Kryger [21]3 years ago

5 0

No a trapezoid has 2 parallel lines

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What is the range for the graph shown?

Andrej [43]

Answer:

D. -2 ≤ y ≤ 3

Step-by-step explanation:

This is because range is based on y-values and so the lowest y-value here is -2 and the greatest one is 3, inclusive.

6 0

3 years ago

Read 2 more answers

Solve for x: 4x - 8 = 7x - 2 Anyone know the answer for this one? Thanks!

erastovalidia [21]

Answer:

$\huge{ \fbox{ \tt{x = - 2}}}$

Step-by-step explanation:

$\underline{ \underline{ \mathfrak{Let's \: solve}}} :$

$\star{ \sf{ \: \: 4x - 8 = 7x - 2}}$

$\text{Step \: 1} : \sf{Move \: 7x \: to \: left \: hand \: side \: and \: change \: its \: sign}$

$\mapsto{ \sf{4x - 7x - 8 = - 2}}$

$\text{Step \: 2} : \sf{Move \: 8 \: to \: right \: hand \: side \: and \: change \: its \: sign}$

$\mapsto{ \sf{4x - 7x = - 2 + 8}}$

$\text{Step \: 3} : \sf{Collect \: like \: terms}$

$\sf{Like \: terms \: are \: those \: which \: have \: same \: base}$

$\mapsto{ \sf{ - 3x = - 2 + 8}}$

$\text{Step \: 4} : \sf{Calculate}$

$\underline{ \text{Remember!}} : \sf{The \: negative \: and \: positive \: integers \: are \: always \: subtracted \: but \: posses \: the \: sign \: of \: the \: bigger \: integer.}$

$\mapsto{ \sf{ - 3x = 6}}$

$\text{Step \: 4} : \sf{Divide \: both \: sides \: by \: - 3}$

$\mapsto{ \sf{ \frac{ - 3x}{ - 3} = \frac{6}{ - 3}}}$

$\text{ Step \: 4} : \sf{Calculate}$

$\mapsto{ \sf{x = - 2}}$

Hope I helped!

Best regards! :D

~ $\sf{TheAnimeGirl}$

3 0

3 years ago

Please help thank you.

sladkih [1.3K]

Answer:

Explanation:

Look at the graph and add up all of the numbers. Hope this helps!

7 0

3 years ago

Write an equation for the description. Ten times the sum of half a number x and 5 is 7.

Amanda [17]

10(1/2x + 5) = 7
That's the way to write the description of that equation. Good luck!!

7 0

4 years ago

What is the volume of the cone below?

erik [133]

Answer:

B. 3408π units³

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Geometry

Volume of a Cone Formula: $\displaystyle V = \frac{1}{3} \pi r^2h$

r is radius
h is height

Step-by-step explanation:

Step 1: Define

Radius r = 12

Height h = 71

Step 2: Find Volume

Substitute in variables [Volume of a Cone Formula]: $\displaystyle V = \frac{1}{3} \pi (12)^2(71)$
Evaluate exponents: $\displaystyle V = \frac{1}{3} \pi (144)(71)$
Multiply: $\displaystyle V = \frac{1}{3} \pi (10224)$
Multiply: $\displaystyle V = 3408 \pi$

8 0

3 years ago

Read 2 more answers