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Llana [10]
2 years ago
13

The sun came out and the temperature quickly rose 18 degrees. The a thunderstorm hits and the temperature drops 6 degrees. The s

un comes back out the temperature raises 12 degrees. The temperature is now 94 degrees. What was the starting temperature?
Mathematics
1 answer:
timofeeve [1]2 years ago
8 0

Answer:

70

Step-by-step explanation:

Just do it backwards.

94 - 12 = 82.

82 + 6 = 88.

88 - 18 = 70.

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satela [25.4K]

12x84-(-7000)

1008+7000

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5 0
3 years ago
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The expression (x − 4)2 is equivalent to x2 − 16 x2 + 16 x2 − 8x + 16 x2 + 8x + 16
zzz [600]

Answer:

Given below

Step-by-step explanation:

The algebraic identity is (a-b)^2

= a^2 + b^2 - 2ab

So it'll be,

(x-4)^2

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4 0
3 years ago
Someone help me please:)
Kryger [21]

Answer:

a. The time to strike the ground is 5 seconds

b. The time for the ball to be over than 96 ft is 1 second

Step-by-step explanation:

a. When the ball thrown vertically up ward to reach its maximum height at velocity = 0 then complete its motion vertically down ward to strike the ground its displacement = zero

∴ s(t) = 0 ⇒ 80t-16t^{2}=0

∴16t(5 - t) = 0

5 - t = 0⇒ ∴ t = 5 seconds

b. To tind the time that the ball will be over 96 ft over the ground substitute in s(t)=80t-16t^{2}

96=80t-16t^{2}

16t^{2}-80t+96=0

16(t^{2}-5t+6)=0

16(t-3)(t-2)=0

t = 3 sec. and t = 2 sec.

The ball will be at height 96 ft at time 2 sec. and 3 sec.

So the ball will be at height over than 96 = 3 - 2 = 1 sec.

8 0
2 years ago
Share £54 into the ratio 1:3
Marina86 [1]

Answer:

£13.5

£40.5

Step-by-step explanation:

Let the amount of shares be x and 3x

Therefore,

x + 3x = 54 \\  \\ 4x = 54 \\  \\ x =  \frac{54}{4}  \\  \\ x = 13.5 \\  \\ 3x = 3 \times 13.5 = 40.5

5 0
3 years ago
Here you guys go also first gets brainly.
creativ13 [48]
<h3>plz mark me as brainliest as I have solve all the questions for you </h3>

8 0
3 years ago
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