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3 years ago

Using related facts and an array to equal 18

Mathematics

1 answer:

Alexus [3.1K]3 years ago

4 0

Please give more detail

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I need help with 4 and 5 what are the answers?

ira [324]

Answer:

4. U = 54

5. C=80

Step-by-step explanation:

Basically you move the denominator to the other side and multiply. please take note of the signs(positve, negative)

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2 years ago

An object at the top of a building with height 110 feet is thrown upward with an initial speed of 23 ft/s. Find its position z(t

alina1380 [7]

Answer:

Step-by-step explanation:

Given

Height of building is $h=110\ ft$

Initial upward velocity $u=23\ ft/s$

height of object is given by

$z(t)=ut+\frac{1}{2}gt^2$

but building is already at a height of 110 ft so z(t) must be given by

$Z(t)=ut+\frac{1}{2}(-g)t^2+110$

$Z(t)=23\times t-\frac{1}{2}\times 9.8\times t^2$

$Z(t)=-16t^2+23t+110$

Time when it hits is given by when Z(t)=0[/tex]

$-16t^2+23t+110=0$

$t=\frac{-23\pm \sqrt{(23)^2-4\times (-16)\times 110}}{2\times (-16)}$

$t=\frac{-23\pm 87}{-32}$

$t=3.43\ s$

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3 years ago

What is the lcd for the fractions 5/12 and 7/18?

Yakvenalex [24]

Denoms are 12 and 18

12=2*2*3
18=2*3*3
lcd=2*2*3*3=36

lcd=36

3 0

3 years ago

Rafael wants to earn at least $45 trimming trees. He charges $8 per hour and pays $3 in equipment fees. What are the possible nu

pshichka [43]

Answer:

6 $\leq$ r

Step-by-step explanation:

45 $\leq$ 8r-3

48 $\leq$ 8r

6 $\leq$ r

8 0

3 years ago

The graph of y = f(x) is graphed below. Wat is the end behavior of f(x)? <br> PLEASE ASAP

Maurinko [17]

Answer:

B.) as x --> -∞, f(x) --> ∞ and x --> ∞, f(x) --> ∞

Step-by-step explanation:

F(x) is another way of representing "y". That being said, the question is asking you the behavior of the graph in terms of the y-axis. On both sides of the function, there is an arrow pointing upwards, towards infinite, positive y-values. Therefore, as "x" approaches -∞ and ∞, f(x) is approaching ∞ (positive infinity).

4 0

1 year ago