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3 years ago

I WILL GIVE BRAINLESS IF YOU HELP ME PLZ S.O.S I HAVE MATH

Mathematics

1 answer:

Nesterboy [21]3 years ago

8 0

A, first find the slope of the line shown, which is 2x+1
slope is rise/over run, with the y-intercept being on 1

When looking at rate of change, it's really just telling you to look at the slope and how steep it is. The more steeper it is, the higher the rate of change. (as close as it is to being a vertical line). Since the slope here is 2. Look for one that has a slope greater than 2, which is 3. Therefore the answer

A. 3x-1

Hope this helps!

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I need these answers, please helppp

aliina [53]

Answer:

Prob of d>4: 0.333

Step-by-step explanation:

180*.333=60

4 0

3 years ago

Which of the following rules represents the set of ordered pairs? {(2, 5), (3, 7), (5, 11),

Nana76 [90]

I think the answer is a.

6 0

3 years ago

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Find how many positive integers with exactly four decimal digits, that is, positive integers between 1000 and 9999 inclusive, ha

zmey [24]

Answer:

(a) There are 257 numbers which are divisible by 5 and by 7

(b) There are 1286 numbers which are divisible by 7

(c) There are 4500 even numbers

(d) There are 514 numbers which are divisible by 5 but not by 7

Step-by-step explanation:

(a) Since, LCM(5, 7) = 35,

Thus, the numbers divisible by 5 and by 7 between 1000 and 9999,

1015, 1050, 1085............, 9975

Which is an AP,

Having first term, a = 1015,

Common difference, d = 35,

Last term, l = 9975

If n be the number of terms,

$\because l = a + (n-1)d$

$9975 = 1015 + (n-1)35$

$9975 - 1015 = (n-1)35$

$8960 = (n-1)35$

$256 = n-1$

$\implies n = 256 + 1 = 257$

(b) Similarly, number divisible by 7,

1001, 1008, 1015............, 9996

Here, a = 1001, d = 7, l = 9996

$9996 = 1001 + (n-1)7$

$9996 - 1001 = (n-1)7$

$8995 = (n-1)7$

$1285 = n-1$

$\implies n = 1285 + 1 = 1286$

(c) Even numbers between 1000 and 9999 inclusive

1000, 1002, 1004, 1006,........9998

Here, a = 1000, d = 2, l = 9998

$9998 = 1000 + (n-1)2$

$9998 - 1000 = (n-1)2$

$8998 = (n-1)2$

$4499 = n-1$

$\implies n = 4499 + 1 = 4500$

(d) Number divisible by 5,

1000, 1005, 1010............, 9995

Here, a = 1000, d = 5, l = 9995

$9995 = 1000 + (n-1)5$

$9995 - 1000 = (n-1)5$

$8995 = (n-1)5$

$1799 = n-1$

$\implies n = 1799 + 1 = 1800$

Hence, the number divisible by 5 but not by 7 = numbers divisible by 5 - number divisible by 7

= 1800 - 1286

= 514

8 0

4 years ago

Help help help help help<br> Match the vocabulary to the correct definition.

alex41 [277]

Answer:

1. Amount less you have to pay.

2. Extra amount to the paid amount. Paid to the server.

3. Amount the stores add to good to make a profit

4. Extra amount paid to the government on good sold. based on a certain rate

Step-by-step explanation:

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3 years ago

With reference to the diagram, what is cosA?

erica [24]

Cos A = Ad / AB
tan 26.57 = AB / 17.89
so AB = 17.89 * tan 26.57 = 8.9469
By pythagoras
Bd = sqrt ( 17.89^2 - 16^2) = 8
AD = sqrt (8.9469^2 - 8^2) = 4.006

cos A = 4.006/ 8.9469 = 0.447

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4 years ago

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