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yan [13]
4 years ago
6

The temperature dropped 12°F during a storm, and then rose 5°F when the storm was over. What was the change in temperature?

Mathematics
1 answer:
love history [14]4 years ago
4 0

x - 12 = b

b + 5 = c

- 12 + 5 = - 7

- 7°F

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6. Santiago Diaz Granados played an arcade game that cost 25 tokens per game. In six games, Santiago won 0 tokens, 10 tokens, 50
Pavel [41]
-- To play the six games, <span>Santiago Diaz Granados spent

                                             (6 x 25) = 150 tokens.

-- As a result of his skill, experience, talent, steady hand, nerves
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Santiago Diaz Granados won</span>

                 (0 + 10 + 50 + 0 + 5 + 10) = 75 tokens.

-- At the end of the 6th game, <span>Santiago Diaz Granados was behind
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After spending 150 tokens and winning 75 tokens, </span><span>Santiago Diaz Granados
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3 0
3 years ago
What is the equation of the line that passes through the point (-3,-8) and has a slope of 4?
coldgirl [10]

Step-by-step explanation:

the easiest approach with a given point and the slope of the line is the point-slope form :

y - y1 = a(x - x1)

where "a" is the slope, and (x1, y1) is a point on the line.

so, we get

y - -8 = 4(x - -3)

y + 8 = 4(x + 3)

if we need the slope-intercept form

y = ax + b

we now simplify the point-slope form

y + 8 = 4x + 4×3 = 4x + 12

y = 4x + 4

3 0
3 years ago
Let A(t)A(t) be the area of a circle with radius r(t)r(t), at time tt in min. Suppose the radius is changing at the rate of drdt
torisob [31]

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At a point when r = 6 ft

The rate of change of Area with time is given as

(dA/dt) = 36π = 113.1 ft²/min

Step-by-step explanation:

Area of a circle, A = πr²

A = πr²

(dA/dt) = (dA/dr) × (dr/dt)

(dA/dr) = 2πr, (dr/dt) = 3

(dA/dt) = 2πr × 3 = 6πr

At a point when r = 6 ft

(dA/dt) = 6πr = 6π × 6 = 36π = 113.1 ft²/min

6 0
3 years ago
An archway will be constructed over a walkway. A piece of wood will need to be curved to match a parabola. Explain to Maurice ho
mariarad [96]
Ok

so the focus is on the opening side of the parabola

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it is also the distance from the vertex to the closes point on directix
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p is positive if the focus is above the directix

ok
y=9 and (7,6)
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from 9 to 6 is 3
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and the vertex will be 1.5 above the focus and 1.5 below the directix
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(x-7)²=4(-1.5)(y-7.5) is de equation
6 0
4 years ago
If I had the equation, x^2=49, what would my solution or solutions be and why?
Eduardwww [97]

Answer:

x=7 and or x=-7

Step-by-step explanation:

5 0
3 years ago
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