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3 years ago

Solve the equation for x: 2.5x = 50

Mathematics

2 answers:

oksano4ka [1.4K]3 years ago

6 0

Answer:

x = 20

Step-by-step explanation:

2.5x= 50

x= 50/2.5

x = 20

maria [59]3 years ago

4 0

Answer:

x = 20

Step-by-step explanation:

x = 50/2.5 = 2.5x = 50

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3 years ago

Given that f(x) = 10x + 45, find f(7)

sattari [20]

Answer:

$\boxed{\bf f(x) = 115}$

Step-by-step explanation:

Given polynomial function :-

$f(x) = 10x + 45$

To find :-

$\sf \: f(7)$

Solution:-

$\sf \implies \: f(x) = 10x + 45$

Here, the value of x is 7(given).

So, Substitute the value of x on the RHS and on LHS :-

$\sf \implies{f}(“7”) = 10(“7”) + 45$

Simplify the RHS:-

Multiply 10 and 7 :-

$\sf \implies{f}(7) = 10 \times 7 + 45$

$\sf \implies{f}(7) = 70 + 45$

Add 70 and 45 :-

$\sf \implies{f}(7) = 115$

We're done!

Hence, the value of f(7) would be,

$\sf \implies{f}(7) = 115$

$\rule{225pt}{2pt}$

I hope this helps!

Let me know if you have any questions.

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3 years ago

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Given circle X with radius 17 units and chord AB with length 30 units, what is the length of segment XC, which bisects the chord

Jet001 [13]

In this problem, there are two congruent right triangles: triangle XCA and triangle XBC, where the hypotenuse are XA and XB respectively. Considering triangle XBC, XB = radius = 17, and BC = 30 / 2 = 15. By pythagorean theorem, XC = sqrt(17^2 - 15^2) = sqrt(289 - 225) = sqrt(64) = 8 units.

I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!

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4 years ago

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Can someone please explain how the answer to this is, "19 and 3", "1 and 12"

Makovka662 [10]

Using the image given, the angles that are Alternate Exterior Angles are: 1, 2, 3, 4,13,14, 18, 19.

<h3>What are Alternate Exterior Angles?</h3>

These are known to be the Alternate exterior angles that are regarded as the pair of angles found on the outer side of the two parallel lines but they are seen on the opposite side of the transversal.

Note that in the image given, there are two parallel lines and two transversal lines.

Note also that to get the Alternate exterior angles, it has to be the angles seen on the seen on the opposite side of the transversal that has crossed the parallels lines and from the image given, only angle 1, 2, 3, 4,13,14, 18, 19 fit into the description.

Therefore, Using the image given, the angles that are Alternate Exterior Angles are: 1, 2, 3, 4,13,14, 18 19.

Learn more about Alternate Exterior Angles from

brainly.com/question/2398628

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2 years ago