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3 years ago

Just n3d answer fast please

Mathematics

1 answer:

ipn [44]3 years ago

6 0

Answer:

Y=-5x-1

Step-by-step explanation:

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Pwese Math suks lol and I didn't learn this

RUDIKE [14]

Answer:

y = 1/9 x z^3

Step-by-step explanation:

y is jointly proportional to x and z^3

y = k * x * z^3 where k is the constant of proportionality

y =12, x = 4 and z =3

12 = k * 4 * 3^3

12 = k * 4 * 27

12 = k * 108

12/108 = k

1/9 = k

y = 1/9 x z^3

8 0

3 years ago

When a 40-foot pole casts a shadow of

Semenov [28]

Set up a ratio with height over shadow height:

40/30 = x/15

Cross multiply:

40 x 15 = 30x

600 = 30x

Divide both sides by 30:

X = 20

The tree is 20 feet tall.

5 0

3 years ago

Read 2 more answers

How many different three-person relay teams can be chosen from six student?

V125BC [204]

Different
slot method
1st slot has 6 options to chose from
2nd slot has 5 since 1 is gone to slot 1
3rd slot has 4 since 2 are gone to 1st and 2nd slots

so it is
6 times 5 times 4=120

answer is 120 ways

8 0

4 years ago

What is the expression obtained when the sum of 2a−16abc−45 and 2a+7abc+11 is subtracted from 6a+6abc−30?

kow [346]

Answer:

$2a+15abc+4$

Step-by-step explanation:

$(2a-16abc-45)+(2a+7abc+11)$

$\implies 2a-16abc-45+2a+7abc+11$

collect and combine like terms:

$\implies 4a-9abc-34$

$(6a+6abc-30)-(4a-9abc-34)$

Apply the distributive law $-\left(a-b\right)=-a+b$ :

$\implies 6a+6abc-30-4a+9abc+34$

collect and combine like terms:

$\implies 2a+15abc+4$

7 0

2 years ago

Which rational function models the time, y, in hours, that it takes the train to travel between the two cities at an average spe

AVprozaik [17]

Answer:

$y=\frac{x}{6.4}$

Step-by-step explanation:

The complete question in the attached figure

we know that

A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form $k=\frac{y}{x}$ or $y=kx$

In this problem, we have a proportional relationship between the average speed (x) and the time (y)

Find the constant of proportionality k

Fox =32, y=5

$k=\frac{5}{32}$

substitute

$y=\frac{5}{32}x$

we have

$\frac{5}{32}=\frac{1}{6.4}$

therefore

$y=\frac{x}{6.4}$

7 0

3 years ago

Read 2 more answers

Just n3d answer fast please ​

Just n3d answer fast please