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ratelena [41]
3 years ago
7

I need help is it A B C or D

Mathematics
2 answers:
den301095 [7]3 years ago
6 0
Yes i agree B. y=2x+5, is the correct answer
Elanso [62]3 years ago
4 0
I believe the answer is B.
To be parallel the lines must have the same gradient (which in this question is 2). The answer must either be B or D.

To find the correct one you can substitute in the value of X and see which gives the value of Y we are looking for.

Equation B:
y=2x+5
=2×3+5
=6+5
=11

Equation D:
y=2x-19
=2×3-19
=6-19
=-13

We are looking for a value of 11 so B is correct.

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I believe it’s c and d
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4 years ago
Pls help (kinda easy)
3241004551 [841]

Answer:

f(x)=(2x+1)(2x-1).

Step-by-step explanation:

We want to convert the function into the form that let's us easily find the x-intercept, and it would be for the form (ax+b)(cx+d) because then we can find the x-intercept in the following manner:

(ax+b)(cx+d)=0

x=-b/a

x=-d/c

We factor our function f(x)=4x^2-1 and get

\boxed{f(x)=(2x+1)(2x-1)}

Now this form let's us easily find the x-intercepts:

x=-1/2

x=1/2

and so we pick the second choice: f(x)=(2x+1)(2x-1).

5 0
3 years ago
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In isoceles triangle the length of a leg is 17cm, and the base is 16cm. Find the length of the altitude to the base
Elan Coil [88]

This triangle has base 16 therefore the sides must be 17cm and 17 cm

When we make a altitude it divides it into two right triangles and there is a property in which the altitude of the isoceles triangle divides the base in 2 equal halves

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Using pythgoreus theorem

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x = 15

So the altitude is 15 cm

Must click thanks and mark brainliest

6 0
3 years ago
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