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marta [7]
3 years ago
8

Can you guys help me with my math test?

Mathematics
1 answer:
Alinara [238K]3 years ago
4 0
Yes. Post the questions
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Subtract.<br> (6x2 + 5) - (4x - 3)
kvasek [131]

Answer:

6x^2 -4x +8

Step-by-step explanation:

(6x^2 + 5) - (4x - 3)

Distribute the negative sign

(6x^2 + 5) - 4x + 3

Combine like terms

6x^2 -4x +5+3

6x^2 -4x +8

7 0
4 years ago
16 x 55 ////////////////////
frosja888 [35]

Answer:

880

Step-by-step explanation:

3 0
3 years ago
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A neighborhood was given a vacant lot in the shape of a rectangle on which to build a park. The neighborhood is considering how
Montano1993 [528]

Answer:

<em>The triangle and trapezoid area formulas have One-half in them.</em>

<em>In the trapezoid formula, the bases are added.</em>

Step-by-step explanation:

<em>Topic: Plane Shapes</em>

Basically, the requirement of the question is to compare area of shapes. The shapes are

  1. Trapezoid
  2. Triangle
  3. Parallelogram
  4. Rectangle

The Area of a Trapezoid is (\frac{a + b}{2} )h where a and b are the bases of the trapezoid and h is the height

The Area of a Triangle is \frac{bh}{2} where b and h are the base and the height of the triangle respectively

The Area of a Parallelogram is b * h where b and h are the bases and the height of the parallelogram

The Area of a Rectangle is l * b where l and b are the length and the breadth of the triangle respectively

Checking option a through e

A. The triangle and trapezoid area formulas have One-half in them.

True; Area of a Triangle is \frac{bh}{2} while Area of a Trapezoid is (\frac{a + b}{2} )h

B. The parallelogram and rectangle formulas are both the same.

False; Area of a Parallelogram is b * h while Area of a Rectangle is l * b

C. In the parallelogram formula, the bases are added.

False; The basis are not added

Area of a Parallelogram is b * h

D. In the trapezoid formula, the bases are added.

True; Area of a Trapezoid is (\frac{a + b}{2} )h

E. In the triangle formula, the sides are added, then multiplied by One-half.

False; Area of a Triangle is \frac{bh}{2}

4 0
4 years ago
Read 2 more answers
Kim's teacher has marked this problem as one to recheck, but Kim cannot determine what she has done incorrectly. Identify Kim's
Darya [45]

2x-6=50. 2x+6-6=50+6. 2x=56. x=28

6 0
4 years ago
What is the sum of the measure of the inner angle of a 13 sided polygon? A. 2340° B. 1300° C. 2700° D. 1980°
Alik [6]

Hi there! :)

Answer:

D. 1980°

Find the sum of the measure of a 13-sided polygon using the formula:

Sum = 180(n-2), where n = number of sides

Therefore:

S = 180(13 - 2)

S = 180(11)

S = 1980°

5 0
4 years ago
Read 2 more answers
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