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3 years ago

Y=x-10 as coordinatornets

Mathematics

1 answer:

natima [27]3 years ago

4 0

Answer:

x=10, y=-10

Step-by-step explanation:

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Can you help me plz.

gavmur [86]

Answer:

Step-by-step explanation:

pls gimme brainliest if im correct

3 0

3 years ago

Read 2 more answers

Find the sample size necessary to estimate the mean IQ score of statistics students such that it can be said with 99% confidenc

quester [9]

Answer: 18

Step-by-step explanation:

The formula to find the minimum sample size is given by :_

$n=(\dfrac{z^*\cdot \sigma}{E})^2$

, where $\sigma$ = population standard deviation.

z*= critical z-value.

E= Margin of error.

Given : $\sigma= 13$

E= ± 8

We know that critical value corresponding to 99% confidence level = z*=2.576 [Using z-table]

Then, the required sample size would be :

$n=(\dfrac{(2.576)\cdot (13)}{8})^2$

$\Rightarrow\ n=(4.186)^2$

$\Rightarrow\ n=17.522596\approx18$ [Round to next integer.]

Hence, the required minimum sample size = 18

4 0

4 years ago

there are 25 students in a classroom. the ratio of girls to boys is 3to2 how many boys and how many girls are there in the class

mixas84 [53]

Answer:

15 girls, 10 boys

Step-by-step explanation:

Since the ratio is 3:2, then the ratio can be rewritten as 15:10. So there are 15 girls and 10 boys

5 0

3 years ago

Read 2 more answers

2. Find the volume of the<br> cylinder.<br> 3.5 ft.<br> r= 2 ft.

lyudmila [28]

Answer:

43.96

(i used 3.14 for pie)

Step-by-step explanation:

4 0

3 years ago

Which is an equation of the line with slope -3 and passes through (2,-1)?

Lisa [10]

Using the equation
(y-y1) = m(x-x1)
Where x1 and y1 are points that lie on the line and m is the slope.
These, be plugging in the values given, we get
(y-(-1))=(-3)(x-2)
(y+1)=(-3x+6)
y+3x-5=0 is the required equation.

4 0

3 years ago