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3 years ago

13

Blue triangle equals to _____?

1 answer:

fiasKO [112]3 years ago

5 0

Answer:

6

Step-by-step explanation:

4 circles=16

4+4+4+4=16

16-4=12

12/2=6

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What is -2x + 3y = 15 in slope intercept form

garik1379 [7]

slope intercept form

y=mx+b

-2x+3y=15

add 2x to each side

3y =2x+15

divide by 3

y = 2/3 x+5

7 0

3 years ago

Find the value of kk for which the constant function x(t)=kx(t)=k is a solution of the differential equation 5t3dxdt+2x−2=05t3dx

uranmaximum [27]

Given the differential equation

$5t^3 \frac{dx}{dt} +2x-2=0$

The solution is as follows:

$5t^3 \frac{dx}{dt} +2x-2=0 \\ \\ \Rightarrow5t^3 \frac{dx}{dt} =2-2x \\ \\ \Rightarrow \frac{5}{2-2x} dx= \frac{1}{t^3} dt \\ \\ \Rightarrow \int {\frac{5}{2-2x} } \, dx = \int {\frac{1}{t^3}} \, dt \\ \\ \Rightarrow- \frac{5}{2} \ln(2-2x)=- \frac{1}{2t^2} +A \\ \\ \Rightarrow\ln(2-2x)= \frac{1}{5t^2} +B\\ \\ \Rightarrow2-2x=Ce^{\frac{1}{5t^2}} \\ \\ \Rightarrow 2x=Ce^{\frac{1}{5t^2}}+2 \\ \\ \Rightarrow x=De^{\frac{1}{5t^2}}+1$

3 0

3 years ago

Five people each take the same number of candies from a jar. Then a group of seven people does the same: in so doing they empty

Vika [28.1K]

Answer:

Step-by-step explanation:

Let first group of people take x candies each

and second group of people take y candies each

5x + 7y will be total candies

5x +7y = 239 (needed to find positive solution of x,y)

now take x=38, y =7

or x=31, y= 12

hence lots of possibilities ,so we can not say exactly

3 0

3 years ago

Read 2 more answers

The time it takes Natalie to replace x cell phone screens is given by the equation t =

Alexxx [7]

Answer: 25 hours

Step-by-step explanation:

$t=1+3x$

8 screens

or

$x = 8$

Replace;

$t=1+3(8)$

$t=1+24$

$t=25h$

6 0

3 years ago

Please Help Me!

alexdok [17]

Answer:

The answer to your question is below

Step-by-step explanation:

(2x⁴ + 7x³ - 3x + 9) - (6x⁴ - 3x³ - 6x² - 17)

Step 1. take out the parenthesis, in the second term, change the signs

2x⁴ + 7x³ - 3x + 9 - 6x⁴ + 3x³ + 6x² + 17

Step 2. Group like terms

(2x⁴ - 6x⁴) + (7x³ + 3x³) + (6x²) + (-3x) + (9 + 17)

Step 3. Simplify like terms

-2x⁴ + 10x³ + 6x² - 3x + 26

3 0

3 years ago