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3 years ago

Simplyfy using appropiate properties 1/4×2/5+-1/6×3/2+3/7×2/5

Mathematics

2 answers:

Triss [41]3 years ago

7 0

Answer:

-1/35

Step-by-step explanation:

* means multiply

because of pemdas you should do three multiplication parts first

(1/4×2/5)+(-1/6×3/2)+(3/7×2/5)

1/20 - 3/12 + 6/35

3/60 - 15/60 + 6/35

-12/60 + 6/35

-1/5 + 6/35

-7/35 + 6/35

-1/35

Over [174]3 years ago

3 0

Answer:

3/140

Step-by-step explanation:

1/4 × 2/5 + (-1/6) × 3/2 + 3/7 × 2/5 =

= 2/20 - 3/12 + 6/35

**********************************************

We need the LCD of 20, 12, 35.

20 = 2^2 * 5

12 = 2^2 * 3

35 = 5 * 7

LCD = 2^2 * 3 * 5 * 7 = 420

**********************************************

= 42/420 - 105/420 + 72/420

= 9/420

= 3/140

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What is y=4x^2-9x+1 in vertex form

Anna11 [10]

Answer:

$y = 4 \left(x - \dfrac{9}{8} \right)^2 - \dfrac{65}{16}$

Step-by-step explanation:

$y = 4x^2 - 9x + 1$

You need to complete the square on the right side.

$y = (4x^2 - 9x) + 1$

$y = 4(x^2 - \dfrac{9}{4}x) + 1$

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$y = 4 \left(x - \dfrac{9}{8} \right)^2 + 1 - 4 \left( \dfrac{81}{64} \right)$

$y = 4 \left(x - \dfrac{9}{8} \right)^2 + 1 - \dfrac{81}{16}$

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3 years ago

The circumference of a circle is 3<br> π<br> π m. Find its diameter, in meters.

UkoKoshka [18]

Answer:

it is 8

Step-by-step explanation:

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3 years ago

Add the polynomials <br><br> 3x^5-2x^3+4x<br> + 4x^6-5x^5+4x^3-x^2

RUDIKE [14]

Answer: B

4x^{6} - 2x^{5} + 4x^{3} -x^{2} +4x

Step-by-step explanation:

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3 years ago

Read 2 more answers

The rules of a game allow a team to score either 2 points or 5 points, depending on the nature of the scoring play. If the final

umka2103 [35]

Answer:

Step-by-step explanation:

Given that :

Total Number of scorings (both Teams) = 18

Let :

x = number of 5 point score ; y = number of 2 point score

Total points scored = 34 + 29 = 63

x + y = 18 - - - (1)

5x + 2y = 63 - - (2)

From (1)

y = 18 - x

In (2) ; we have ;

5x + 2(18 - x) = 63

5x + 36 - 2x = 63

3x + 36 = 63

3x = 63 - 36

3x = 27

x = 9

9 5-point plays

3 0

3 years ago

5-2(2x - 3) = 12<br><br> Cual es el resultado de x?

postnew [5]

Answer:

Step-by-step explanation:

5-2(2x - 3) = 12

<u>Expanda los términos en el corchete</u>

Eso es

5 - 4x + 6 = 12

<u>Agrupar términos similares</u>

Envíe las constantes al lado derecho de la ecuación y aquellas con variables al lado izquierdo

Tenemos

- 4x = 12 - 5 - 6

- 4x = 1

Divide ambos lados entre - 4

Tenemos la respuesta final como

Espero que esto te ayude

8 0

3 years ago

Simplyfy using appropiate properties 1/4×2/5+-1/6×3/2+3/7×2/5 ​

Simplyfy using appropiate properties 1/4×2/5+-1/6×3/2+3/7×2/5