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Irina18 [472]
3 years ago
13

Solve the equation. -7= z/3

Mathematics
2 answers:
Mariana [72]3 years ago
7 0

Step-by-step explanation:

- 7 =  \frac{z}{3}  \\ by \: cross \: multiplication \\  z =  - 7 \times 3 \\ z =  - 21

Hunter-Best [27]3 years ago
6 0
-7=z/3
-7x3=z
-21 = z
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Im being timed so uhh help please
Jobisdone [24]
The answer to the following equation is the first one.
3 0
3 years ago
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Question 3. Y=(1/5)^xSketch the graph of each of the exponential functions and label three points on each graph.
STatiana [176]

Given exponential function:

y\text{ = (}\frac{1}{5})^x

Let us obtain three points including the y-intercept so that we can plot the function y = f(x)

When x =0:

\begin{gathered} y\text{ = (}\frac{1}{5})^0 \\ =\text{ 1} \end{gathered}

when x =1:

\begin{gathered} y\text{ = (}\frac{1}{5})^1 \\ =\text{ }\frac{1}{5} \end{gathered}

when x =2:

\begin{gathered} y\text{ = (}\frac{1}{5})^2 \\ =\text{ }\frac{1}{25} \end{gathered}

We have the points : (0, 1), (1, 1/5), and (2, 1/25)

Using these points, let us provide a sketch of the plot of y =f(x). We have the plot as shown below:

5 0
1 year ago
Which expression is equivalent to (7x3)2(x3)?
astraxan [27]

Answer:

(21)+(6) is an equivalent expression

Step-by-step explanation:

(7x3)2(x3)

(21)+(6)

8 0
3 years ago
What is the area of a regular nonagon (9 sides) with side length of 15 cm and apothem of 20.6 cm? Round the answer to the neares
Triss [41]
We know that

<span>The nine radii of a regular Nonagon divides into 9 congruent isosceles triangles
</span>therefore
[the area of <span>a regular nonagon]=9*[area of isosceles triangle]

</span>[area of isosceles triangle]=b*h/2------> 15*20.6/2----> 154.5 cm²
so
[the area of a regular nonagon]=9*[154.5]------> 1390.5 cm²

the answer is
1390.5 cm²

5 0
3 years ago
Solve for p. i = prt
Andrew [12]

Answer:

p=i/rt

Step-by-step explanation:

its p= i over rt

4 0
3 years ago
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