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3 years ago

Find the coordinates of the midpoint of HX given that H(-1,3) and X(7,-1).

Mathematics

2 answers:

Elis [28]3 years ago

8 0

A. find the average of both x's for the x value, and the average of both y's for the y value. (-1+7)=3 (3+(-1))=1

Ludmilka [50]3 years ago

4 0

Number one) B

Number two) A

Number three) C

Number four) A

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Why was the drone able to find a missing man when helicopters as dogs could not?<br> Plz help

Daniel [21]

Answer:

i would say all maybe the 2nd one the most

Step-by-step explanation:

cause they all make sense

8 0

4 years ago

Solve: 10x = 26 please help me

SVETLANKA909090 [29]

13/5 or 2.6 or yes there’s more ors but or 2 3/5

8 0

3 years ago

Read 2 more answers

Translate this sentence into an equation 5 times the sum of a number and four equals eight

r-ruslan [8.4K]

5 * ( A NUMBER + 4) = 8

You can replace "A NUMBER" with a term such as x.

5 * ( x + 4) = 8

You can also rearrange the equation to solve for "A NUMBER".

A NUMBER + 4 = 8 / 5 = 1.6

A NUMBER = 1.6 - 4 = -2.4

7 0

4 years ago

Determine the equation of a circle with a center at (–4, 0) that passes through the point (–2, 1) by following the steps below.

maw [93]

the equation of a line that has a center at (h,k) and radius of r is

$(x-h)^2+(y-k)^2=r^2$

we can use the distance formula to find the radius ( I would just substitute but whatever)

distance between (-4,0) and (-2,1) is

$D=\sqrt{(-4-(-2))^2+(0-1)^2}$

$D=\sqrt{(-4+2)^2+(-1)^2}$

$D=\sqrt{(-2)^2+1}$

$D=\sqrt{4+1}$

$D=\sqrt{5}$

D=r

so the equation is

$(x-(-4))^2+(y-0)^2=(\sqrt{5})^2$

$(x+4)^2+y^2=5$

3 0

4 years ago

Read 2 more answers

As discussed in Exercise 6.10, the General Social Survey reported a sample where about 61% of US residents thought marijuana sho

Maslowich

Answer: 2285

Step-by-step explanation:

Formula to find the sample size is given by :-

$n=p(1-p)(\dfrac{z_c}{E})^2$

, where p = prior estimate of population proportion.

E= Margin of error.

$z_c$ = z-value for confidence interval of c.

Given : Confidence interval : 95%

From the z-value table , the z-value for 95% confidence interval = $z_c=1.96$

The General Social Survey reported a sample where about 61% of US residents thought marijuana should be made legal.

i.e. the prior estimate of population proportion of US residents thought marijuana should be made legal : p=0.61

[∵ sample proportion is the best estimate for population proportion.]

Margin of error : E= 2%=0.02

Now, the required minimum sample size would be :-

$n=0.61(1-0.61)(\dfrac{1.96}{0.02})^2$

Simplify ,

$n=0.2379\times9604=2284.7916\approx2285$

Thus , we need to survey <u>2285</u> Americans .

4 0

4 years ago