3 years ago

What is the value of the expression below when z=2? 7z^2-3z-10

Mathematics

1 answer:

PolarNik [594]3 years ago

5 0

That simplifies to 28-6-10 which =12

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jet skis rent for $25 per hour plus a flat fee of $50. Noel can rent the jet ski for 6 hours. what is the largest value in the r

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Answer:

The largest value in this situation would be $25+$50x6 which equals $450

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2 years ago

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3/5t−4−7/10t=−2 what the value of t

Marysya12 [62]

Hello there.

<span>3/5t−4−7/10t=−2

t=-20</span>

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3 years ago

QUESTION 20

Elodia [21]

Answer:

B. -55

Step-by-step explanation:

La resta entre ambas funciones consiste en la sustracción de términos semejantes como demostraremos a continuación:

1) $f(x) =-2\cdot x ^{2}-6$ Dado

2) $g(x) = x+4$ Dado

3) $(f-g)(x) = (-2\cdot x^{2}-6)-(x+4)$ Definición de resta de funciones.

4) $(f-g)(x) = (-2\cdot x^{2}-6)+(-1) \cdot (x+4)$ $(-1)\cdot a = -a$

5) $(f-g)(x) = (-2\cdot x^{2}-6) + (-x-4)$ Propiedad distributiva/ $(-1)\cdot a = -a$

6) $(f-g)(x) = -2\cdot x^{2}-x+(-6-4)$ Propiedad conmutativa

7) $(f-g) (x) = -2\cdot x^{2}-x-10$ Sustracción de términos semejantes/Resultados.

A continuación, evaluamos la función resultante en $x = -5$ :

$(f-g)(-5) = -2\cdot (-5)^{2}-(-5)-10$

$(f-g)(-5) =-55$

Por ende, la respuesta correcta es B.

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2 years ago

The graph shows the number of flowers that can be pollinated as the number of bees increase. What is the unit rate?

dybincka [34]

Answer:

Step-by-step explanation:

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2 years ago

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just olya [345]

Answer:

3, 6, 9, 12, 15

adding 3 each time

3, 9, 27, 81, 243

multiplying by 3 each time

Step-by-step explanation:

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2 years ago