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3 years ago

The blue dot is at what value on the number line?

Mathematics

1 answer:

ira [324]3 years ago

4 0

I’m pretty sure your counting by 3’s because It’s goes 9,3 . However it might be in the negatives

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Question 6 of 30 Kristen wrote a number that is equal to three times the difference of 65 and 48. Which expression represents th

lisov135 [29]

Three times = 3 ×

The difference of 65 and 48 = 65 - 48 = 17
(Difference = subtract)

That equals 3 × 17

Answer = 3 × 17
(3 × 17 = 51)

Hope this helped☺☺

5 0

3 years ago

A sports magazine claims that in a certain country, 45% of people like soccer A news channel asked 30 randomly selected people i

LiRa [457]

Answer:

Step-by-step explanation:

Hello!

The parameter of interest is "the population proportion of people that like soccer A news channel"= p

The hypothesis are:

H₀: p = 0.45

H₁: p ≠ 0.45

To study the population proportion you have to use the approximation of the standard normal distribution:

$Z= \frac{p'-p}{\sqrt{\frac{p(1-p)}{n} } }$ ≈ N(0;1)

A sample of n=30 was taken and surveyed, 18 of those answered positively, then the sample proportion is:

p'= 18/30= 0.6

The statistic under the null hypothesis is:

$Z_{H_0}= \frac{0.60-0.45}{\sqrt{\frac{0.45*0.55}{30} } } = 1.6514$

I hope it helps!

6 0

2 years ago

This is for algebra 1

allsm [11]

X+y=12 -- 1
3x+2y=29 -- 2

(1)x2
2x+2y=24 -- 1
(2)-(1)
x=5

Sub x into 1
x+y=12
5+y=12
y=7

Her two numbers are 5 and 7

3 0

3 years ago

7x+10 on a table …. Linear function

Dafna1 [17]

Answer:

Yes, its a linear function.

Step-by-step explanation:

4 0

1 year ago

What is the inverse of the function f(x) = 3x – 2? f-1(x) =

Eddi Din [679]

Answer:

$\frac{x + 2}{3}$

Step-by-step explanation:

Replace y with f(x).

$y = 3x - 2$

Swap x and y and solve for y

$x = 3y - 2$

$x + 2 = 3y$

$\frac{x + 2}{3} = y$

7 0

3 years ago