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ryzh [129]
3 years ago
14

Pls can anyone help il give more points plsss

Mathematics
1 answer:
Rom4ik [11]3 years ago
3 0

Answer:

1. 25

2. 3 hours

3. from 10:00 am to 10:30 am because he went 10 miles in 30 minutes

Step-by-step explanation:

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Nancy has to find the coordinates of the reflection of the point across the y-axis. How can she find the coordinates of the new
oksian1 [2.3K]

Answer: (x, y) transforms into (-x, y)

Step-by-step explanation:

When we do a reflection over a given axis, the distance between the initial point to the axis must be the same as the distance of the reflected point to the axis.

So if we do a reflection over the y-axis, then the value of y must be fixed.

So if we start with the point (x, y), the only other point that is at the same distance from the y-axis is the point (-x, y)

So the rule is, the y value remains equal and the x changes of sign.

4 0
4 years ago
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If f(x) = 3x-9 and g(x) = x^2 what is (g °f) (5)
zavuch27 [327]
F(5) =   3(5) - 9 =  6

g o f (5) = g(6) = 6^2 = 36 answer
5 0
3 years ago
Read 2 more answers
PLZ HELP 8TH GRADE MATH (05.02)
Ludmilka [50]
The equation that represents that line is 
y=2/3x+5. 

First, you have to find the slope (the change of y over the change of x which here is 2/3. Then, you put one of the points in and solve. I used (3,7) When you input them into the equation, you get 7=2/3 (3)+_ Which gives you 7=2+_ . 
5+2 is seven, so the blank is 5. So, when you do that, you get Y=2/3x+5.
If you need more of an explanation, comment. The answer is the second one 

Hopes this helps :)
5 0
3 years ago
Oreana's 150 g bag of trail mix is x% raisins. Brandon's 250 g bag of trail mix is y% raisins. They combine the two mixes togeth
Gre4nikov [31]

Answer:

x+y/ 100 = 450

Step-by-step explanation:

450 = x% + y%

450 = x/100 + y/100

450 = x+y/100

7 0
3 years ago
Nts) in a certain population of voters, 72% of them plan to vote in favor of a new
Ganezh [65]

Answer:

Probability that 10 of them plan to vote against this piece of  proposed legislation is 0.0701 or 7.01 %.

Step-by-step explanation:

Consider the event of voting against the piece as success, 'p'. So, voting in favor of the piece is failure and denoted by 'q'.

Given:

Sample size is, n=25

Probability of failure is, q=72\%=0.72

Therefore, probability of success is, p=1-q=1-0.72=0.28

Number of successes is, x=10

Now, from Bernoulli's distribution, probability of x successes out of n samples is given as:

P(X=x)=_{n}^{x}\textrm{C}p^xq^{n-x}

Here, n=25,x=10,p=0.28,q=0.72. Therefore,

P(X=10)=_{25}^{10}\textrm{C}(0.28)^{10}(0.72)^{25-10}\\P(X=10)=_{25}^{10}\textrm{C}(0.28)^{10}(0.72)^{15}\\P(X=10)=3.269\times 10^{6}\times 2.962\times 10^{-6}\times 7.244\times 10^{-3}\\P(X=10)=70.142\times 10^{-3}=0.0701=7.01\%

Therefore, probability that 10 of them plan to vote against this piece of  proposed legislation is 0.0701 or 7.01 %.

8 0
3 years ago
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