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3 years ago

Which step would solve the equation?

Mathematics

2 answers:

Zina [86]3 years ago

7 0

I would probably say that the answer is C, multiply (z - 12) by 2, but I am not 100% sure, please let me know if I am right or wrong. Have a nice day

Kazeer [188]3 years ago

6 0

Bottom left. Distributive property

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During a figure skating routine, Jackie and Peter skate apart with an angle of 15° between them. Jackie skates for 5 meters and

Fantom [35]

Answer:

Ans = 2.53m

Step-by-step explanation:

It is a simple law of Cosine, on a right-angle triangle draw the length as 5 and the base as 7 the angle is 15°. Find x.

So x = 5² +7² - 2 (5) (7)cos 15°

Solve this and you get your answer.

Hope this was helpful :)

7 0

3 years ago

An inverted pyramid is being filled with water at a constant rate of 25 cubic centimeters per second. The pyramid, at the top, h

UNO [17]

Answer:

$\frac{225}{16} cm/s$

Step-by-step explanation:

We are given that

$\frac{dV}{dt}=25cm^3/s$

Side of base=4 cm

l=w=4 cm

Height,h=12 cm

We have to find the rate at which the water level rising when the water level is 4 cm.

Volume of pyramid= $\frac{1}{3}lwh=\frac{1}{3}l^2h$

$\frac{l}{h}=\frac{4}{12}=\frac{1}{3}$

$l=\frac{1}{3}h$

Substitute the value

$V=\frac{1}{27}h^3$

Differentiate w.r.t t

$\frac{dV}{dt}=\frac{3}{27}h^2\frac{dh}{dt}$

Substitute the values

$25=\frac{1}{9}(4^2)\frac{dh}{dt}$

$\frac{dh}{dt}=\frac{25\times 9}{16}=\frac{225}{16} cm/s$

5 0

3 years ago

31 gallons of gas cost $82.15. What is the unit rate for 1 gallon of gas ?

alexgriva [62]

Divide total price by gallons:

82.15 / 31 = 2.65 for 1 gallon

7 0

3 years ago

1 point

kolezko [41]

Answer:

Step-by-step explanation:

I pretty sure that its 6 if nt sorry

7 0

3 years ago

Which of the following functions has a graph that is a line? f(x) = |x| f(x) = x f(x) = x 2

sattari [20]

Answer:

f(x) = x

Step-by-step explanation:

f(x) = |x| will give you V graph

f(x) = x will give you line graph (linear)

f(x) = x² will give you a curve graph

7 0

4 years ago