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AlexFokin [52]
3 years ago
8

Yooo plz help asap!!! marking brainiest!!!

Mathematics
1 answer:
Fudgin [204]3 years ago
3 0

Answer: 3x^2 - 16x + 15

Step-by-step explanation:

5x * 3x = 15x^2

-7 * 3x = -21x

5x * 1 = 5x

-21x + 5x = -16x

5x^2 - 17x^2 + 15x^2 = -12x^2 + 15x^2 = 3x^2

13x - 7x - 22x = 6x - 22x = -16x

- 4 + 19 = 15

______________________

3x^2 - 16x + 15

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Answer:

4 im pretty sur

Step-by-step explanation:

7 0
3 years ago
Make 'm' the subject of the formula'k=3m-2
zaharov [31]

Answer:

m =  \frac{k + 2}{3}

Step-by-step explanation:

k = 3m - 2 \\ 3m = k + 2 \\ m =  \frac{k + 2}{3}

4 0
3 years ago
Read 2 more answers
El ancho de un rectángulo es 15 pies menos que
Karolina [17]

Answer:

II. Longitud, L = 70 metros.

I. Ancho = 55 metros.

Step-by-step explanation:

Deje que la longitud del rectángulo sea L.

Deje que el ancho del rectángulo sea W.

Dados los siguientes datos;

Perímetro del rectángulo = 250 m

Traduciendo el problema verbal a una expresión algebraica, tenemos;

W = L - 15

Matemáticamente, el perímetro de un rectángulo viene dado por la fórmula;

P = 2 (largo + ancho)

250 = 2 (L + L - 15)

250 = 2 (2L - 15)

250 = 4L - 30

4L = 250 + 30

4L = 280

L = 280/4

Longitud, L = 70 m

Para encontrar el ancho;

W = L - 15

W = 70 - 15

Ancho = 55 m

3 0
2 years ago
Rafael has 17 game cards. He wants to deal each of 6 players the same number of cards. How many cards will each player get? How
vovangra [49]

Answer:

Each players will get 2 cards.  There will be 5 cards left.

Step-by-step explanation:

6x3=18<-- 1 more than how many he has.

6x2=12<-- each player will get 2 cards.

17-12=5<-- 5 cards will be remained.

Hope this helps.  Please give brainliest

5 0
2 years ago
Karen, Tara, and Chelsea each buy ice cream and paperback novels to enjoy on hot summer days. Ice cream costs $5 per gallon, and
mestny [16]
B. Karen only

ice cream : $8 a gallon

$8 times 5 equals $40

paperback novels: $8 each

$8 times 5 equals $40

$40 plus $40 equals $80 and Karen is the only one with $80.
7 0
3 years ago
Read 2 more answers
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