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3 years ago

Name a pair of supplementary angles

Mathematics

2 answers:

Masteriza [31]3 years ago

5 0

Both the first choice and the fourth choice are correct because the sum of supplementary angles is 180°

Softa [21]3 years ago

4 0

Answer:

Step-by-step explanation:

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Write the equation that represents the relationship between n the number of triangles and p the perimeter of the figures formed.

Klio2033 [76]

1 triangle: 2*6 + 1*5

2 triangles: 2*6 + 2*5

3 triangles: 2*6 + 3*5

So for n triangles: p = 2*6 + n*5 = 12 + 5n

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3 years ago

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Find (3.3 × 10^4) + (1.9 × 10^5)

scoundrel [369]

Answer:

$2.23 \times 10^{5}$

Step-by-step explanation:

We have to find the sum of two numbers following the steps as described in the question.

The question is in the form of fill in the blanks.

Now, the given sum is $(3.3 \times 10^{4} )+(1.9 \times 10^{5} )$

= $(3.3 \times 10^{4} )+(19 \times 10^{4} )$

= $(3.3+19) \times 10^{4}$

= $22.3 \times 10^{4}$

= $2.23 \times 10^{5}$ (Answer)

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3 years ago

The height of a trapezoid can be expressed as x – 4, while the bases can be expressed as x + 4 and x + 9. if the area of the tra

AlexFokin [52]

Answer: 19 cm

<u>Step-by-step explanation:</u>

$A_{trapezoid}=\frac{b_{1}+b_{2}}{2}*h$

99 = $\frac{(x+4 + x+9}{2}*(x - 4)$

99 = $\frac{(2x + 13}{2}*(x - 4)$

198 = (2x + 13)(x - 4)

198 = 2x² + 5x - 52

0 = 2x² + 5x - 250

0 = 2x²- 20x + 25x - 250

0 = 2x(x - 10) + 25( x - 10)

0 = (2x + 25)(x - 10)

0 = 2x + 25 or 0 = x - 10

$-\frac{25}{2}$ = x or x = 10

Since length cannot be negative, $-\frac{25}{2}$ can be disregarded

Larger base: x + 9 = 10 + 9 = 19

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3 years ago

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Give me two other forms for the number 0.543

Leno4ka [110]

1) 543/1000
2) 54.3

You're welcome ;)

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3 years ago

Pleaseeeeee helppp i dont get itttttttt

lisov135 [29]

Answer:

don't get what

Step-by-step explanation:

..................

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3 years ago

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