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Ganezh [65]
4 years ago
13

Simplify this algebraic expression Z-4/4+8 A. Z-7 B.z+7 C.z+9 D.z-3

Mathematics
2 answers:
zheka24 [161]4 years ago
7 0
<span>Z-4/4+8

Z - 1 + 8

Z + (-1 + 8)

Z + 7</span>
Tomtit [17]4 years ago
6 0
The answer is B I think
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Find the non permissible replacement for y in this expression. y^2/ -3y+9
Lilit [14]

Answer:

Step-by-step explanation:

You have a fraction, so a non permited value is one which will create a 0 in the denominator.

-3y + 9 = 0

y = 3

3 0
3 years ago
The movement of a projectile, thrown upwards vertically, is described by the equation y = - 40x<img src="https://tex.z-dn.net/?f
kow [346]
At X = 2.5 the projectile hits the ground
7 0
3 years ago
Cesar debe confeccionar tres tipos de volantes rectangulares, pero solo recuerda algunas medidas. calcula la medida del lado res
Marta_Voda [28]

Answer:

a. El lado restante = 16 cm.

b. El lado restante = √7 cm

c. El lado restante = 6·√13 cm

Step-by-step explanation:

Debemos calcular la dimensión del otro lado del volante de la siguiente manera;

a. La diagonal = 34 cm

Longitud de un lado = 30 cm

Por lo tanto, según el teorema de Pitágoras, la longitud del lado restante viene dada por la siguiente relación

La longitud del lado restante = √ ((Diagonal) ² - (Longitud del lado dada) ²)

La longitud del lado restante = √ ((34) ² - (30) ²) = 16 cm

El lado restante = 16 cm.

b. La longitud del lado restante = √ ((Diagonal) ² - (Longitud del lado dada) ²)

La longitud del lado restante = √ ((4) ² - (3) ²) = √7 cm

El lado restante = √7 cm

C. La longitud del lado restante = √ ((Diagonal) ² - (Longitud del lado dada) ²)

La longitud del lado restante = √ ((18) ² - (12) ²) = 6·√13 cm

El lado restante = 6·√13 cm.

4 0
3 years ago
A wildlife habitat houses 41 animals. There are three more reptiles than mammals in the habitat. There are seven fewer amphibian
dedylja [7]

Answer: 8

Step-by-step explanation:

Let mammals be represented by y

There are three more reptiles than mammals in the habitat. Therefore, Reptiles = y + 3

There are seven fewer amphibians than mammals in the habitat. Therefore, amphibian = y - 7

y + y + 3 + y - 7 = 41

3y - 4 = 41

3y = 41 + 4

3y = 45

y = 45/3

y = 15

Since amphibian = y - 7

= 15 - 7

= 8

There are 8 amphibians

8 0
4 years ago
State the empirical rule as specialized to variables.
Alik [6]

Answer:

bellshaped

a) 68

b) 95

c) 99.7

Step-by-step explanation:

A bell shaped distribution is a normal distribution.

Those percentages: 68, 95 and 99.7 correspond to the values that lies around the mean within one, two and three standard deviations.

8 0
4 years ago
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