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3 years ago

120 is the same as 394 fewer than Z

Mathematics

1 answer:

SpyIntel [72]3 years ago

8 0

Answer:

z=514

Step-by-step explanation:

120=z-394

+394. +394

514=z

Hope this helps

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The graph represents the speed at which Pete’s marble travels.

AfilCa [17]

Answer:

Step-by-step explanation:

Here, we simply want to know who will reach the 6-foot mark sooner

Mathematically, we need to get the slope from the graph

Looking at the graph, we can see that the 3 ft mark was reached at exactly 2 seconds

So what this mean is that, in 4 seconds, the 6 ft mark will be reached

This makes up the fact that the speed for Pete’s travel is 1.5 ft/ secs

Now compare this with what Stephano has, which is 2.25 ft/ s

we can see that stephano is traveling at a better speed and will reach the 6 ft mark first

So the correct option is B

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3 years ago

Carla and Marty have three straws. The straws have lengths 8 inches, 10 inches and 14 inches. They are going to use their straws

IgorLugansk [536]

Carla is correct because they will not all be exactly the same unless they choose to make them all be the same. Hope I could help! :D

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3 years ago

Paws at play made a total of $1,234 grooming 22 dogs. Paws at play charges $43 to groom each small dog and $75 for each large do

vovikov84 [41]

Step-by-step explanation:

We are asked to write a system of equations using our given information.

Let x be number of small dogs and y be number of large dogs.

We have been given that paws at play made a total of $1,234 grooming 22 dogs, which means that number of small dogs and large dogs is 22. We can represent this information as:

$x+y=22...(1)$

We have been given that paws at play charges $43 to groom each small dog and $75 for each large dog. So the total grooming charges for grooming x small and y large dogs will be 43x+75y, that is equal to total charges for grooming $1234.

We can represent this information as:

$43x+75y=1234...(2)$

Therefore, our desired system of equations is:

$x+y=22...(1)$

$43x+75y=1234...(2)$

6 0

3 years ago

A large national company is considering negotiating cellular phone rates for its employees. the human resource department would

Rufina [12.5K]

Sample size=n=250
sample proportion=p=0.4
95% confidence interval so significance level α=1-0.95=0.05
So, α/2=0.025
z_( α/2)=1.960 (value taken from statistic z-table)
use formula;

p(+/-)z_(α/2)square root(p(1-p)/n)

(0.4-1.960 sq.root(0.4(1-0.4)/250), 0.4+1.960 sq.root(0.4(1-0.4)/250))
(-0.2073,0.4607) (estimation of population proportion)

6 0

3 years ago

Can someone graph this equation? 5x-5=5x+2

dem82 [27]

Start by simplifying the equation
5x-5x=2+5
0=7
That means y=7, which means there is a slope of 0
See the picture
Hope this helps

5 0

4 years ago