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2 years ago

7

What is the measure of A 30° C

1 answer:

Setler79 [48]2 years ago

5 0

Answer:

120°

Step-by-step explanation:

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Ann, Chang, and Kareem sent a total of

Gnoma [55]

It is given in the question that

Ann, Chang, and Kareem sent a total of 89 text messages over their cell phones during the weekend. Ann sent 9 fewer messages than Chang. Kareem sent 3 times as many messages as Ann.

Let number of messages Chang sent be x. And Ann sent 9 fewer than Chang, so Ann sent (x-9) messages. And Kareem sent 3 times as many messages as Ann, so Kareem sent 3(x-9) messages.

And the total messages are 89. That is

$x+x-9+3(x-9)=89$

Combining like terms

$x + x - 9 + 3x-27 =89
\\
5x -36=89
\\
5x = 125
\\
x =25$

So Chang sent 25 messages, Ann sent

$25-9=16 messages$

And Kareem sent

$3*16 = 48 messages$

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3 years ago

At a local fair, 194 balloons are blown up. over the course of the day, 85 of them are given away to children and another 38 of

kaheart [24]

Answer:

74

Step-by-step explanation:

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3 years ago

El doble de un número aumentado la mitad del mismo número

djverab [1.8K]

Answer:

Double a number increased by half the same number

Step-by-step explanation:

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3 years ago

Find the derivative of StartFraction d Over dx EndFraction Integral from 0 to x cubed e Superscript negative t Baseline font siz

Valentin [98]

Answer: (a) e ^ -3x (b)e^-3x

Step-by-step explanation:

I suggest the equation is:

d/dx[integral (e^-3t) dt

First we integrate e^-3tdt

Integral(e ^ -3t dt) as shown in attachment and then we differentiate the result as shown in the attachment.

(b) to differentiate the integral let x = t, and substitute into the expression.

Therefore dx = dt

Hence, d/dx[integral (e ^-3x dx)] = e^-3x

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3 years ago

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PLEASE HURYYYY <br>Solve the inequality.<br><br>−2 <m – 7

soldi70 [24.7K]

Here you go, hope it helps:)

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3 years ago

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