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3 years ago

Can somebody answer this...

Mathematics

1 answer:

Gnesinka [82]3 years ago

4 0

Answer:

1. 72

2. 60

3. 35

4. 32

Step-by-step explanation:

1. 6 x 4 x 3= 72

2. 5 x 3 x 4= 60

3. 5 x 2 x 2= 20

5 x 3 x 1= 15

20 + 15= 35

4. 5 x 3= 15

2 x 2=4

4 x 8= 32

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algebraically determine the values of h and k to correctly complete the identity stated below : 2 x cubed - 10x squared + 11x -

11Alexandr11 [23.1K]

Answer:

The values for expression is h = - 2 and k = 5

Step-by-step explanation:

Given algebraic expression can be written as :

2 x³ - 10 x² + 11 x - 7 = ( x - 4 ) × ( 2 x² + h x + 3 ) + k

Now opening the bracket

Or, 2 x³ - 10 x² + 11 x - 7 = x × ( 2 x² + h x + 3 ) - 4 × ( 2 x² + h x + 3 ) + k

Or, 2 x³ - 10 x² + 11 x - 7 = 2 x³ + h x² + 3 x - 2 x² - 4 h x - 12 +k

Or , 2 x³ - 10 x² + 11 x - 7 = 2 x³ + ( h - 2 ) x² + ( 3 - 4 h ) x - 12 + k

Now, equating the equation both sides

I.e - 10 = ( h - 2 )

Or , h - 2 = - 10

I.e , h = - 10 + 2

∴ h = - 2

Again , 11 = ( 3 - 4 h )

or, 11 = 3 - 4 h

or, 11 - 3 = - 4 h

or, 8 = - 4 h

∴ h = $\frac{-8}{4}$

I.e h = - 2

Again

- 7 = - 12 + k

Or, k = - 7 + 12

∴ k = 5

Hence The values for expression is h = - 2 and k = 5 . Answer

5 0

3 years ago

Help me plz now plz help me asap

loris [4]

$\\ \sf\longmapsto 0.49=\dfrac{49}{100}$

$\\ \sf\longmapsto 0.093=\dfrac{93}{1000}$

$\\ \sf\longmapsto 0.021=\dfrac{21}{1000}$

$\\ \sf\longmapsto 0.103=\dfrac{103}{1000}$

6 0

3 years ago

Is the statement below always,sometimes,or never true? Give at least two examples to support your reasoning. The LCM of two numb

Natali5045456 [20]

Answer:

True for Co-Prime Numbers
False for Non Co-Prime Numbers

Step-by-step explanation:

<u>STATEMENT:</u> The LCM of two numbers is the product of the two numbers.

This statement is not true except if the two numbers are co-prime numbers.

Two integers a and b are said to be co-prime if the only positive integer that divides both of them is 1.

<u>Example: </u>

Given the numbers 4 and 7, the only integer that divides them is 1, therefore they are co-prime numbers and their LCM is their product 28.

However, consider the number 4 and 8. 1,2 and 4 divides both numbers, they are not co-prime, Their LCM is 8 which is not the product of the numbers.

3 0

3 years ago

Un submarino se encuentra 50m por debajo del nivel del mar y comienza a subir 2m cada 5 minutos ¿a que profundidad se encuentra

Trava [24]

Answer:

a) El submarino se encuentra a una profundidad de 26 metros una hora después de haber comenzado el ascenso.

b) Al submarino le falta 1 hora y 5 minutos para llegar a la superficie.

Step-by-step explanation:

a) De acuerdo con el enunciado, la cantidad de metros ascendidos por el submarino es directamente proporcional al tiempo, entonces la profundidad del submarino a la hora de haber comenzado el ascenso se obtiene mediante la siguiente relación lineal:

$h = 50\,m - \frac{2\,m}{5\,min}\times 60\,min$