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3 years ago

How to make a number line

Mathematics

2 answers:

tester [92]3 years ago

3 0

Make a line _______________
then put little lines like this on it _/_/_/_/_/
Then put you numbers below the little lines

liubo4ka [24]3 years ago

3 0

first just draw a straight line , with arrows on both points on the line

then , on the line , take a distance of 1 cm and draw more smaller lines

mark the mid point as 0 and to the right write positive no.s like 1 2 3

and to the left write negative no.s like -1 -2 -3 ect .

i would like to attach a picture to make it more clear to u

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Slope of 0 3 and 4 1

attashe74 [19]

Answer:

m = $\frac{-1}{2}$

Step-by-step explanation:

The slope of (0,3) (4,1) =

$\frac{-1}{2}$

Hope this helps :)

6 0

3 years ago

Read 2 more answers

What is the value of a in this diagram

Delicious77 [7]

What diagram people?

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3 years ago

Solve the equation. Round to the nearest hundredth. Show work.

Burka [1]

Answer:

$x=-0.75$

Step-by-step explanation:

The given equation is

$4^{-5x-7}=6^{2x-1}$

We take logarithm of both sides to base 10.

$\log(4^{-5x-7})=\log(6^{2x-1})$

$(-5x-7)\log(4)=(2x-1)\log(6)$

We expand the brackets to get;

$-5x\log(4)-7\log(4)=2x\log(6)-\log(6)$

Group similar terms;

$-7\log(4)+\log(6)=2x\log(6)+5x\log(4)$

$-7\log(4)+\log(6)=(2\log(6)+5\log(4))x$

$\frac{-7\log(4)+\log(6)}{(2\log(6)+5\log(4))}=x$

$x=-0.752478$

To the nearest hundredth.

$x=-0.75$

3 0

3 years ago

As a town gets smaller, the population of its high school decreases by 8% each year. The senior class has 320 students now. In h

Semmy [17]

Answer:

in 13.95 years the senior class will have 100 students.

Step-by-step explanation:

P(h) = p(0.92)^t (equation for exponential change)

P(h) - population of highschool (or senior class) = 100

p - staring amount = 320

t = time in years

100 = 320(0.92)^t

1/3.2 = .92^t (divide both sides by 320)

log(1/3.2, .92) = t (log base 0.92 of 1/3.2 equals t)

13.9497 = t

6 0

3 years ago

A school director must randomly select 6 teachers to part in a training session. There are 34 teachers at school. In how many di

prohojiy [21]

Answer:

Total possible ways to select 6 teachers from 34 teacher are $^{34}C_6=1344904$ .

Step-by-step explanation:

It is given that total number of teachers at a school is 34.

The school director must randomly select 6 teachers to part in a training session.

$^nC_r=\frac{n!}{r!(n-r)!}$

Where, n is total possible outcomes and r is number of selected outcomes.

Total teachers = 34

Selected teachers =6

Total number of possible ways to select 6 teachers from 34 teacher is

$^{34}C_6=\frac{34!}{6!(34-6)!}$

$^{34}C_6=\frac{34\times 33\times 32\times 31\times 29\times 28!}{6!(28)!}$

$^{34}C_6=1344904$

Therefore total possible ways to select 6 teachers from 34 teacher are $^{34}C_6=1344904$ .

7 0

3 years ago