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BaLLatris [955]
3 years ago
15

Find the value of the variable using these steps.

Mathematics
2 answers:
Aleks [24]3 years ago
4 0
0.4x+3.9=5.78 ⇒ subtracting 3.9 form both sides

0.4x+3.9-3.9=5.78-3.9

0.4x=1.88 ⇒ Divide both sides by 0.4

\frac{0.4x}{0.4}= \frac{1.88}{0.4}

x=4.7
Zanzabum3 years ago
4 0

He is correct just took the test 4.7!!!!!!!!!!!

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Tadeo is a beekeeper. The table shows the weekly number of bees producing honey in a new hive. Which expression gives the number
Afina-wow [57]

The exponential equation that gives the number of bees in week 12 is of:

y = 4(3)^{11} = 708588

<h3>What is an exponential function?</h3>

It is modeled by:

y = ab^x

In which:

  • a is the initial value.
  • b is the rate of change.

In this problem, considering that the initial week is the first, and the value triples every week, the expression for the number of bees after x weeks is given by:

y = 4(3)^{x - 1}

Hence, after 12 weeks, the expression is:

y = 4(3)^{11} = 708588

More can be learned about exponential equations at brainly.com/question/25537936

7 0
3 years ago
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If x&lt;0 and y&gt;0, determine the sign of the real number.​
UNO [17]

Answer:

both negative because y is negative and make both answers negative

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PLEASE FIND THE ANSWER FAST!!!!!!!!!!
Doss [256]

Answer:

3

Step-by-step explanation:

1/2*base*height

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What is m in this question
solmaris [256]
-16 because you need to subtract -4 from -12
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Write the equation of the line represented by the following table
s344n2d4d5 [400]

Answer:

y = 100x + 400

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Calculate m using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (0, 400) and (x₂, y₂ ) = (1, 500) ← 2 points from the table

m = \frac{500-400}{1-0} = 100

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y = 100x + 400 ← equation of line

4 0
3 years ago
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