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3 years ago

Find f(2) if f(x)=2x+1 hey besties

Mathematics

1 answer:

Gala2k [10]3 years ago

7 0

Answer: 5

Step-by-step explanation:

f(x)=2x+1

f(2)=2(2)+1 Subtitube 2 for x

f(2)=4+1

f(2)=5

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Point b lies on the segment ac . Find the length of the segment ac, if ab=7.8 cm, bc=25mm. How many different solutions can this

mixas84 [53]

Given that B lies on segment AC and AB=7.8cm , BC = 25mm

Let us convert AB to mm by multiplying with 10 that is AB = 78mm

There are totally 3 possible ways for B lying on segment AC.

Solution 1:- B lies in between A and C,

Then AC = AB+BC

=78+25 = 103 mm

Solution 2:- B lies to the right of C like ACB.

Then AB = AC+CB

78 = AC+25

AC = 78-25 = 53mm

Solution 3:- B lies to the left of A like BAC.

Then BC = BA+AC

25 = 78+AC

Since AC cannot be negative, this way is not possible.

Hence there are only 2 solutions possible.

If we are given that B lies on line joining A and C, then definitely B should lie between A and C. That means nothing but solution 1. So only one solution is possible in this case.

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3 years ago

Rewrite the equation by completing the square. x^2 −16x+63=0 (x +{ })^2={ }

Elina [12.6K]

Answer:

(x + 4) ^{2} + 47 = 0

Step-by-step explanation:

$(x ^{2} + 4 ^{2} ) - 4 ^{2} + 63 = 0 \\ (x + 4) ^{2} + 47 = 0$

When completing squares, basing on our equation in the question:

First square the half of 16 e.g (16÷2)^2 = 4^2

Add the result to x^2 and subtract it with 63 e.g the second equation

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4 years ago

24 students in a class taken algebra test if 18 students pass the test what percentage did pass

sp2606 [1]

75% percent of them passed

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3 years ago

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2³ + 10 - 4 +4 +3² please help me with this

EastWind [94]

It is 27, hope this helps!

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3 years ago

Mr and Mrs Baker place 12-inch rulers along the length of a rug. They each line up 3 rulers along the edge of the rug. What is t

Daniel [21]

3 Feet
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3 years ago

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