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3 years ago

If t = 4 find the value of t+6 over 5 (fraction)

1 answer:

8 0

$\frac{t+6}{5}$
Since t = 4, wherever you see t replace it with 4
$=\frac{4+6}{5}$
$\frac{10}{5} 
$
$=2
$
Please mark me as brainliest. Thanks!!

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Look at the two temperatures. How much have they changed by?<br> 4 degrees to -10 degrees

aliina [53]

Answer:

$\displaystyle 14$

Step-by-step explanation:

we are given two temperature

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since it says to figure out the changed

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$\displaystyle 4 + 10$

simplify addition:

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3 years ago

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Determine all values of k that make each of the following a perfect square trinomial. X^2+8x+k

-Dominant- [34]

Answer:

k can either be

−

Step-by-step explanation:

Consider the equation

0=x2+4x+4

. We can solve this by factoring as a perfect square trinomial, so

0=(x+2)2→x=−2 and−2

. Hence, there will be two identical solutions.

The discriminant of the quadratic equation (b2−4ac) can be used to determine the number and the type of solutions. Since a quadratic equations roots are in fact its x intercepts, and a perfect square trinomial will have

2 equal, or 1

distinct solution, the vertex lies on the x axis. We can set the discriminant to 0 and solve:

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6 0

3 years ago

Find the slope of the line that contains the two points (0,1) and (1,3)

klio [65]

Answer:

m=2 or y=2x+1

Step-by-step explanation:

first use the y2-y1/x2-x1 formula and then use y=mx+b formula

plug in 3 for y2 and 1 for y1

plug in 1 for x2 and 0 for x1

$\frac{3-1}{1-0} =\frac{2}{1} =2$

so ur slope is 2

_______________

for y=mx+b *extra info ig if u need it just incase*

i usually use the first point for this but u can use any one u want

plug in 0 for x

plug in 1 for y

and plug in 2 for m

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2*0=0

1=0+b

subtract o on both sides

1=b and b is ur y-intercept

y=2x+1

hope this helps

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3 years ago

It is currently 0 degrees outside and the temperature is dropping 4 degrees every hour. The temperature after h hours is -4h. Ex

Ymorist [56]

Answer:

-4x3.5=-14

Step-by-step explanation:

divide -14 by -4 wich = 3.5

6 0

2 years ago

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