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3 years ago

Solve for x. 3.8 + 4.5x - 1.4 = 8.25

Mathematics

2 answers:

pantera1 [17]3 years ago

7 0

I think it’s 1.3, if it’s not than I’m so sorry

Annette [7]3 years ago

6 0

Answer:

x = 1.3

Step-by-step explanation:

Eliminate fractions first. Multiply all four terms by 100. The result will be:

380 + 450x - 140 = 825

Combine like terms:

240 + 450x = 825, or

585 = 450x, or:

x = 1.3

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PolarNik [594]

Answer:

The equation of this line would be y = -8

Step-by-step explanation:

Since y = 9 is a horizontal line, the parallel line must also be horizontal. All horizontal lines can be written as y = (a number). That number can be found as the y-coordinate in the ordered pair, which is -8.

y = -8

8 0

3 years ago

WILL GIVE BRAINLST <br><br> HAVE A GOOD DAY

Stells [14]

Answer: 0.5

Step-by-step explanation:

L×L= area

L^2=0.25

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L=√0.25

L=0.5

5 0

3 years ago

A spherical balloon is inflated with gas at the rate of 500 cubic centimeters per minute. How fast is the radius of the balloon

zmey [24]

Using implicit differentiation, it is found that the radius is increasing at a rate of 0.0081 cm per minute.

<h3>What is the volume of a sphere?</h3>

The volume of a sphere of radius r is given by:

$V = \frac{4\pi r^3}{3}$

Applying implicit differentiation, the rate of change is given by:

$\frac{dV}{dt} = 4\pi r^2\frac{dr}{dt}$

In this problem, we have that:

$\frac{dV}{dt} = 500, r = 70$

Hence the rate of change of the radius is given as follows:

$\frac{dV}{dt} = 4\pi r^2\frac{dr}{dt}$

$19600\pi\frac{dr}{dt} = 500$

$\frac{dr}{dt} = \frac{500}{19600\pi}$

$\frac{dr}{dt} = 0.0081$

The radius is increasing at a rate of 0.0081 cm per minute.

More can be learned about implicit differentiation at brainly.com/question/25608353

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4 0

2 years ago

144

ahrayia [7]

Answer:

a³b < 0

Step-by-step explanation:

If a > 0 then a³ > 0

and b < 0

then

a³b → + × - → -

that is a³b < 0

8 0

3 years ago

Gina says that for all real numbers a and b, ab=ba. is this statement true or false? If false, give a counterexample

Anika [276]

Answer:

True

Step-by-step explanation:

The communative property states that the order in addition and multiplication dosen't matter.

6 0

2 years ago

Read 2 more answers

Solve for x. 3.8 + 4.5x - 1.4 = 8.25​

Solve for x. 3.8 + 4.5x - 1.4 = 8.25