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natta225 [31]
3 years ago
5

Determine the slope from the following order pairs: (0,3) (3,-1)

Mathematics
1 answer:
liq [111]3 years ago
3 0
Use slope formula
y^2-y^1/x^2-x^1

the answer is -4/3
You might be interested in
The circular radio signal from transmitter A has three times the radius of the circular signal from transmitter B. How many time
Shalnov [3]

Answer:

B

How many times greater in the area of the signal from transmitter

3 0
3 years ago
36/100 simplified in simple form
Ludmilka [50]

Hello from MrBillDoesMath!


Answer:  9/25


Discussion:

My first observation is that both 36 and 100 are even numbers, so let's divide each by 2.

36/100 = 18/50

Again, 18 and 50 are even numbers so let's divided each by 2

= 18/50 =  9/25

While I didn't write it out, my statement "divide them by 2" is really this:

36/100 =   ( 36/2) / (100/2)  = (18) /50 = ( 18/2) / (50/2) = 9/25

Confusing, isn't it!

A shorter, but equivalent, approach is to divide the numerator and denominator by 4.



Regards, MrB.



 


7 0
3 years ago
1) Se o 5o e o 9-o termos de uma PA são, respectivamente, 40 e 68, então a razão r da progressão é: a) r = 6 b) r = 7 c) r = 9 d
Maslowich

Answer:

1) b) r = 7

2) e) 82

Step-by-step explanation:

Progressão aritmética:

Em uma progressão aritmética, a diferença entre termos consecutivos é sempre a mesma, chamada de razão.

O n-ésimo termo de uma PA é dado por, tomando o primeiro termo como referência:

a_n = a_1 + (n-1)r

Tomando o m-ésimo termo como referência, tem-se que:

a_n = a_m + (n-m)r

1) Se o 5o e o 9-o termos de uma PA são, respectivamente, 40 e 68, então a razão r da progressão é:

a_5 = 40, a_9 = 68. Então:

a_n = a_m + (n-m)r

68 = 40 + 4r

4r = 28

r = \frac{28}{4} = 7

Então a resposta correta é dada pela alternativa b.

2) Inserindo-se 6 números entre 72 e 107, de modo que a sequência (72, a2, a3, a4, a5, a6, a7 ,107) seja uma progressão aritmética, tem-se a3 igual a:

O primeiro termo é a_1 = 72 e o oitavo termo é a_8 = 107. Com isso, é possível encontrar a razão.

a_n = a_1 + (n-1)r

107 = 72 + 7r

7r = 35

r = \frac{35}{7} = 5

Então, o terceiro termo é:

a_3 = a_1 + 2r = 72 + 2(5) = 82

Logo, a resposta correta é dada pela alternativa e.

5 0
3 years ago
Forty students are In Science club. Of those 45% are girls. This percent increase 56% after new girls join the club. How many ne
stepan [7]
45% of 40 is 0.45×40=18 girls
if x girls join then 56% of 40+x is 0.56(40+x)=18+x
22.4+0.56x=18+x
put together like terms
4.4=0.44x
<span>x=10 girls joined</span>
8 0
4 years ago
C. 48 + 8x + 23 = 7<br> Solve for x
N76 [4]
ANSWER BELOW

Combine like terms

8x + 71 = 7

Subtract the 71 to get x all alone

8x = -64

Divide by 8

X= -8
7 0
3 years ago
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