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Effectus [21]
3 years ago
7

Need help will give brainliest

Mathematics
2 answers:
Firdavs [7]3 years ago
6 0
The answer is 3.5 can I have a brainliest now?
umka2103 [35]3 years ago
5 0

Answer:

3.5

Step-by-step explanation:

The constant rate of proportionality, k, is expressed as k = \frac{y}{x}, and shows that two quantities are proportional to each other. In this logic, rearranging this in terms of y gives us:

y = kx

Thus we can determine that k is 3.5, in this case.

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Graph the line with slope -3 passing through the point (2,4)
sveticcg [70]

Answer:

f(x) = -3x + 10

Step-by-step explanation:

Substitute values to find b;

y=mx+b

y=-3x+b

<em>Replace X and Y</em>

4=-3(2)+b

4=-6+b

<em>Swap sides to set equal to b. Swapping causes sign change</em>

4+6=b

10=b

4 0
3 years ago
What is the value of <img src="https://tex.z-dn.net/?f=%5Cfrac%7B81%5E4%7D%7B3%5E5%7D" id="TexFormula1" title="\frac{81^4}{3^5}"
IRISSAK [1]

Answer:3^1^1\\

Step-by-step explanation:

\frac{81^4}{3^5}

\frac{3^1^6}{3^5}

The base is same power can be add or subtract

3^1^6^-^5

3^1^1

5 0
3 years ago
In a sample of 35 high school seniors, 14 of them are attending college in the fall. Find the 95% confidence interval for the tr
kati45 [8]

Answer:

Between 23.77% and 56.23%

Step-by-step explanation:

On your TI-84

Press STAT

Use right arrow to scroll over to highlight TESTS

Use down arrow to scroll down to A:1-PropZInt...

Press ENTER

Make the screen read

x:14  

n:35

C-Level:0.95

Calculate

highlight  Calculate

Press ENTER

See this:

(.2377,.5623)

p(hat)=.4

n=35

The confidence interval is 0.2377 < p < 0.5623

Between 23.77% and 56.23%

7 0
3 years ago
What's the slope of -4,6 and 3,-8
notsponge [240]

Answer:

The slope is -2

Step-by-step explanation:

(-4,6) (3,-8)

(y₂ - y₁) / (x₂ - x₁)

((-8) - (6)) / ((3) - (-4))

(-8 - 6) / (3 + 4)

-14/7 = -2

4 0
4 years ago
Patricia compró 10 estampillas de correos unas de $3.00 y otras de $1.00. Si pago con $18.00 en total. ¿Cuántas pago por cada un
Ganezh [65]

Answer:

Entonces Patricia necesitara 4 estampas de $3 dolares y 6 estampas de $1 dolar

Step-by-step explanation:

Cuatro estampas de tres dolares cada una es:

3 × 4 = 12

Ahora necesitamos encontrar  cuantas estampas mas Patricia puede comprar. Podemos hacer esto restando 12 a 18, que es el costo total de las estampas menos del valor encontrado

18 - 12 = 6

Ahora sabemos que Patricia necesita 6 dolares de estampas ($1 estampas) para acompletar las 10 estampas  dando un total de $18 dolares.

6 × 1 = 6 < sumar 6 de 12

12 + 6 = 18

Entonces Patricia necesitara 4 estampas de $3 dolares y 6 estampas de $1 dolar

6 0
4 years ago
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