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dezoksy [38]
3 years ago
13

Can someone please help me solve this?

Mathematics
2 answers:
Ira Lisetskai [31]3 years ago
4 0
Your answer would be a because the 1 is negative which makes it (-1,3)
cestrela7 [59]3 years ago
3 0

Answer:

(a)

Step-by-step explanation:

The tangent and the normal at point P are perpendicular.

Given

m_{tangent} = 3, then

Given the gradient m of the tangent then the gradient of a line perpendicular to it is

m_{normal} = - \frac{1}{m} = - \frac{1}{3} → (a)

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Answer:

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Step-by-step explanation:

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3 years ago
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Using the Principle of Mathematical Induction, prove that . n ^2 − n is even for n ≥ 1​
Tamiku [17]

Base case: if <em>n</em> = 1, then

1² - 1 = 0

which is even.

Induction hypothesis: assume the statement is true for <em>n</em> = <em>k</em>, namely that <em>k</em> ² - <em>k</em> is even. This means that <em>k</em> ² - <em>k</em> = 2<em>m</em> for some integer <em>m</em>.

Induction step: show that the assumption implies (<em>k</em> + 1)² - (<em>k</em> + 1) is also even. We have

(<em>k</em> + 1)² - (<em>k</em> + 1) = <em>k</em> ² + 2<em>k</em> + 1 - <em>k</em> - 1

… = (<em>k</em> ² - <em>k</em>) + 2<em>k</em>

… = 2<em>m</em> + 2<em>k</em>

… = 2 (<em>m</em> + <em>k</em>)

which is clearly even. QED

8 0
3 years ago
Please help and explain these two problesm <br><br>-2a + 4 (a - b ) + 5b<br><br>x + 3 + 5 (x - 3)
Alenkinab [10]
Just use the distributing property and combine like terms. There isn’t a definite answer since it is an expression.

4 0
2 years ago
In the diagram below, ΔPQR ≅ ΔSTR. Complete the statement ∠PRQ ≅ ___ A. ∠SRT B. ∠RST C. ∠STR D. ∠T
Oduvanchick [21]

The complete statement is ∠PRQ ≅ <u>∠SRT</u>. The correction option is A. ∠SRT

<h3>Similar triangles </h3>

From the question, we are to complete the given statement

From the given information,

We have that ΔPQR ≅ ΔSTR

This means ΔPQR is congruent to ΔSTR

Then,

∠PQR ≅ ∠STR

∠PRQ ≅ ∠SRT

∠QPR ≅ ∠TSR  

Hence, the complete statement is ∠PRQ ≅ <u>∠SRT</u>. The correction option is A. ∠SRT

Learn more on Congruent Triangles here: brainly.com/question/28032367

#SPJ1

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2 years ago
What is the basic ratio for 30:42
lianna [129]
30:42 is represented as 30/42
The lowest form for that is 5/7. Hope that helped. Good luck
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