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uranmaximum [27]
3 years ago
9

Multiply. (5x + 3z) (7x-z) Simplify your answer.

Mathematics
1 answer:
Law Incorporation [45]3 years ago
4 0

Answer:

105x^{2}z-15xz^{2}

I might be wrong though

Step-by-step explanation:

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Find q. Write your answer in simplest radical form.
yawa3891 [41]

Answer:

q=90 units.

Step-by-step explanation:

5 0
3 years ago
The height of the Empire State Building is 1250 feet tall. Your friend, who is 75 inches tall, is standing nearby and casts a sh
Lyrx [107]
Answer:

The length of the building's shadow = 550.66 ft

Explanations:

The height of the Empie State Building = 1250 feet

The friend's height = 75 inches

The length of the friend's shadow = 33 inches

\frac{Actual\text{ height of the friend}}{\text{Length of the friend's shadow}}=\text{ }\frac{Height\text{ of the building}}{\text{Length of the building's shadow}}\begin{gathered} \frac{75}{33}=\text{ }\frac{1250}{\text{Length of the building's shadow}} \\ 2.27\text{ =  }\frac{1250}{\text{Length of the building's shadow}} \\ \text{Length of the building's shadow = }\frac{1250}{2.27} \\ \text{Length of the building's shadow = }550.66\text{ f}et \end{gathered}

6 0
2 years ago
Electrical Resistance The electrical resistance R of a wire varies inversely with the square of its diameter d. If a 25-foot wir
kati45 [8]

Answer:

The answer is below

Step-by-step explanation:

The electrical resistance R of a wire varies inversely with the square of its diameter d:

R ∝ 1 / d

Let k represent the constant of proportionality, hence we can represent the statement as an equation:

R=\frac{k}{d^2}\\ \\when\ R=0.5 \Omega,d=2\ mm\\\\0.5=\frac{k}{2^2} \\\\k=2\\\\The\ equation\ becomes :\\\\R=\frac{2}{d^2}\\ \\When\ d=3, we\ find\ R\\\\R=\frac{2}{3^2} \\\\R=0.22\ \Omega

8 0
4 years ago
ITS DUE AT 12 PLZ HELP ME I DONT GET IT
FinnZ [79.3K]

Answer:

a) 1/2,  1/2,  1/2

b) T

   R

   S

c) DEF and TRS are similar

Step-by-step explanation:

a) TR/DE = 9/18 = 1/2

   RS/EF = 8/16 = 1/2

   TS/DF = 5/10 = 1/2

b) E is the smallest angle on the DEF, and it corresponds w the smallest angle on TRS, R. D corresponds to T, and F to S

they r similar figures -  u can see it if u tilt TRS counterclockwise nd flip it

c) they r similar bcuz u can see in part a) that they all have proportional side lengths so yea theyre similar

5 0
3 years ago
What is the square root of -1<br>​
Reil [10]

Answer:

Zero has one square root which is 0. Negative numbers don't have real square roots since a square is either positive or 0. The square roots of numbers that are not a perfect square are members of the irrational numbers. This means that they can't be written as the quotient of two integers.

6 0
3 years ago
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