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3 years ago

NEED HELP ASAP!!!!!! please!!!!!!

Mathematics

1 answer:

eimsori [14]3 years ago

6 0

Answer:

x = 70

Step-by-step explanation:

Since the two sides are congruent, then the base angles are congruent.

2x + 40 = 180

subtract 40 from both sides

2x = 140

divide by 2 on both sides

x = 70

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Nikki gathered data about the length of time she spent listening to the radio and the number of commercials she heard. She organ

topjm [15]

Answer:

The number of minutes Nikki needs to listen to the radio to hear 20 commercials is 63.275 minutes

Step-by-step explanation:

The given dependent and independent variables are;

The number of minutes spent by Nikki listening = x

The number of commercials aired = y

The relationship between the independent variable, x ans the dependent variable, y, was given by the Nikki's graphing tool line of best fit as follows;

y = 0.338·x - 1.387

Therefore, the number of minutes, x, Nikki needs to listen to the radio to hear 20 commercials, y is given as follows;

20 = 0.338·x - 1.387

20 + 1.387 = 0.338·x

0.338·x =20 + 1.387 = 21.387

x = 21.387/0.338 = 63.275 minutes

The number of minutes, x, Nikki needs to listen to the radio to hear 20 commercials, y = 63.275 minutes.

5 0

3 years ago

Do you know the answer to this one I need answer plz

Jlenok [28]

The correct option is first option: x=t(y-4f)

Further explanation:

Given equation is:

$\frac{x}{t}+4f=y$

In order to solve the equation for x, we have to isolate x on one side of the equation

Using Subtraction property of equality

Subtracting 4f from both sides

$\frac{x}{t}+4f-4f=y-4f\\\frac{x}{t}=y-4f$

Multiplication property of equality

Multiplying both sides by t

$\frac{x}{t}*t=t(y-4f)\\x=t(y-4f)$

Hence, the correct option is first option: x=t(y-4f)

Keywords: Linear equation, Equation solution

Learn more about keywords about:

#LearnwithBrainly

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3 years ago

Which logarithmic equation is equivalent to the exponential equation below? 70.81 = ea

bixtya [17]

Loge 70.81 = a
Log to the base e is also written as ln
ln 70.81 = a

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Alina [70]

Answer:

0.500000

Step-by-step explanation:

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Artyom0805 [142]

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