2 years ago

Let x= -1, y= -2 and z = 3 evaluate the following expression x/5y - 2z

Mathematics

2 answers:

RideAnS [48]2 years ago

8 0

Just substitute the values: -1/-10-6 -> -1/-16 -> 1/16.

pochemuha2 years ago

7 0

Answer:

since you already got an answer can i have free starter points?

Step-by-step explanation:

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Doss [256]

P(t) = 50 x (4)^t ; 51200 bacteria

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2 years ago

The diagram shows a circle inside a square.<br> a O<br> 16 cm<br> Work out the area of the circle.

LuckyWell [14K]

Answer:

perimeter of circle=2πr

16=2πr

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now.

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2 years ago

It takes Natalie five hours to tar a roof. Imani can tar the same roof in ten hours. How long would it take them if they worked

tresset_1 [31]

Answer:

C. 3.33 hours

Step-by-step explanation:

Use the algebra work equation:

$\frac{1}{tb}$ = $\frac{1}{t1}$ + $\frac{1}{t2}$ , where tb is the time to work together, t1 is the time it takes one person, and t2 is the time it takes the other person

Plug in the values we know:

$\frac{1}{tb}$ = $\frac{1}{5}$ + $\frac{1}{10}$

$\frac{1}{tb}$ = $\frac{4}{20}$ + $\frac{2}{20}$

$\frac{1}{tb}$ = $\frac{6}{20}$

20 = 6tb

3.33 = tb

So, it would take them 3.33 hours when working together.

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3 years ago

Evaluate t-u/v, when t=-1,u=-3 and v=1/2

mars1129 [50]

Answer:

Step-by-step explanation:

t-u/v

substitute (-1) - (-3)/(1/2)

divide (-1) - (-6)

simplify (-1) + 6

add 5

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2 years ago

Please help me asap.

Makovka662 [10]

The first one is the answer you're looking for

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2 years ago