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zimovet [89]
3 years ago
12

5

latex-formula"> + \sqrt{98} - 3\sqrt{147}
Mathematics
1 answer:
Gemiola [76]3 years ago
4 0

Hello!

\bf 5 \sqrt{37}  +  \sqrt{98}  - 3 \sqrt{147}

\bf 5 \sqrt{37}  + 7 \sqrt{2}  - 21 \sqrt{3}

I removed the factors from under the radical.

Good luck! :)

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If Y varies directly as X and Y= 79 when X= 49, Find Y if X = 9
ryzh [129]

Answer:

y = 14.5

Step-by-step explanation:

given that y varies directly as x

mathematically,

y ∝ x

y = kx .............................................. where k is the constant of proportionality.

k = y /x

given that

y = 79

x = 49

k = 79/49

k = 1.61

to find y when x = 9

from

y = kx

y = 1.61 × 9

y = 14.5

therefore the value of y when x = 9 in ths variation is evaluated to be equals to 14.5

7 0
3 years ago
Answer if u actually know it only!!
irina [24]

Answer: 2^5

Step-by-step explanation: Diego should have added the exponents instead of multiplying them. I know it sounds weird but because both of the numbers are 2's you are able to combine them. When multiplying them together you should keep the base the same and add the exponents. In this case, 2^2 x 2^3 would be 2^5. Hope this helps.

5 0
3 years ago
Read 2 more answers
Distributive property -4(-10x^2-8x+7)
jok3333 [9.3K]

Step-by-step explanation:

-4(-10x² - 8x + 7)

= 40x² + 32x -28

8 0
3 years ago
What is the algebra phrase x time y equal
Alexxandr [17]

Answer

x times y = xy

x + y times a + b = (x + y)(a + b)

For that you can use the FOIL method which is First, Outside, Inside, Last.

First: x times a = ax

Outside: x times b = bx

Inside: y times a = ay

Last: y times b = by

So you have ax + bx + ay +by.

If you end up using numbers, then you can simplify.

Ask your teacher or parents. It's easier to explain in person.

4 0
3 years ago
A una distancia de 2 metros de la base de una torre, vemos su bandera en un Distancia de 5,39 metros en línea recta. ¿Cuál es la
Sidana [21]

Answer:

La altura de la torre es de 4,0052 m.

Step-by-step explanation:

En la figura vemos que la persona está parada en C y la bandera en A.

Se dan la base y la hipotenusa, tenemos que encontrar la altitud / altura / perpendicular del triángulo.

Según el teorema de Pitágoras

hipotenusa² = base² + perpendicular²

o

perpendicular² = hipotenusa²- base²

perpendicular² = 5.39²- 2²

perpendicular² = 29.0521-4

perpendicular² = 25.0521

perpendicular = √25.0521

perpendicular = 5.0052m

Ahora, en el punto A, la altura de la bandera se incluye en la altura de la torre.

La longitud de la bandera se deduce para obtener la altura real de la torre.

perpendicular = longitud de la bandera + altura de la torre

altura de la torre = perpendicular - longitud de la bandera

            = 5.0052-1 = 4.0052m

La altura de la torre es de 4,0052 m.

From the figure we see that the person is standing at C and the flag is at A.

The base and the hypotenuse are given we have to find the altitude / height/ perpendicular of the triangle.

According to Pythagorus theorem

hypotenuse²= base² + perpendicular²

or

perpendicular²= hypotenuse²- base²

perpendicular²= 5.39²- 2²

perpendicular²= 29.0521-4

perpendicular²= 25.0521

perpendicular= √25.0521

perpendicular= 5.0052m

Now at the point A the height of the flag is included in the height of the tower.

The length of the flag is deducted to get the actual height of the tower.

perpendicular= flag length  + tower height

tower height = perpendicular - flag length

            =5.0052- 1= 4.0052m

The tower height is 4.0052m

7 0
3 years ago
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