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3 years ago

State if each pair of ratios forms a proportion 4/3 and 8/6 yes or no??

Mathematics

1 answer:

Reptile [31]3 years ago

7 0

We have: $\frac{4}{3}=\frac{4.2}{3.2}= \frac{8}{6}$

Answer: Yes

Ok done. Thank to me :>

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If the federal reserve sells $70,000 in treasury bonds to a bank at a 9% interest rate what is the immediate effect on the money

noname [10]

Answer : A it is decreased by $70,000

Federal reserve sells $70,000 in treasury bonds to a bank.

Removing cash decreases the money supply . Money supply decreases when exchanging for bonds. That is the immediate effect on money supply.

Federal reserve sells $70,000 . so money supply is decreased by $70,000

8 0

4 years ago

PLEASE HELP ME WITH THIS QUESTION AND ILL BRAINLIEST YOU

neonofarm [45]

Answer:

Step-by-step explanation:

Two sum of any two side lengths of a triangle will always be greater than the length of the remaining side

a doesn't work because 8+12=20 and 20 is not greater than 20

b doesn't work because 4+5=9 and 9<10

d doesn't work because 6+6=12 and 12 is not greater than 12

c is the only option where you can take any two sides, add them, and the sum will be greater than the remaining side.

For example, for c,

6+8=14, and 14>10

8+10=18, and 18>6

10+6=16, and 16>8

7 0

3 years ago

Read 2 more answers

What is the area of this figure?

Hunter-Best [27]

Answer:

just a guess I would say 70cm squared.

4 0

3 years ago

Solve the following recurrence relation: <br> <img src="https://tex.z-dn.net/?f=A_%7Bn%7D%3Da_%7Bn-1%7D%2Bn%3B%20a_%7B1%7D%20%3D

-Dominant- [34]

By iteratively substituting, we have

$a_n = a_{n-1} + n$

$a_{n-1} = a_{n-2} + (n - 1) \implies a_n = a_{n-2} + n + (n - 1)$

$a_{n-2} = a_{n-3} + (n - 2) \implies a_n = a_{n-3} + n + (n - 1) + (n - 2)$

and the pattern continues down to the first term $a_1=0$ ,

$a_n = a_{n - (n - 1)} + n + (n - 1) + (n - 2) + \cdots + (n - (n - 2))$

$\implies a_n = a_1 + \displaystyle \sum_{k=0}^{n-2} (n - k)$

$\implies a_n = \displaystyle n \sum_{k=0}^{n-2} 1 - \sum_{k=0}^{n-2} k$

Recall the formulas

$\displaystyle \sum_{n=1}^N 1 = N$

$\displaystyle \sum_{n=1}^N n = \frac{N(N+1)}2$

It follows that

$a_n = n (n - 2) - \dfrac{(n-2)(n-1)}2$

$\implies a_n = \dfrac12 n^2 + \dfrac12 n - 1$

$\implies \boxed{a_n = \dfrac{(n+2)(n-1)}2}$

4 0

2 years ago

What is the equation of the line in slope-intercept form?

belka [17]

Answer:

y = 3/5 x+3

Step-by-step explanation:

two points on the graph

(-5,0) (0,3)

the y intercept is 3 (this is where it crosses the y axis)

the slope is

change in y 0 to 3 up 3

------------------ = -------------- = ------- = 3/5

change in x -5 to 0 right 5

we can tell the slope is positive because it goes from bottom left to top right

a negative slope goes from top left to bottom right

slope intercept form is

y=mx+b

y = 3/5 x+3

3 0

4 years ago

Read 2 more answers