3 years ago

HELP ASAP ILL GIVE BRAINLIST

Mathematics

1 answer:

tankabanditka [31]3 years ago

8 0

Answer: I think the answer would be (2, -1)

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I need some help with this

masya89 [10]

Answer:

A, C, D

Step-by-step explanation:

Consider triangles NKL and NML. These triangles are right triangles, because

$m\angle K=m\angle M=90^{\circ}$

In these right triangles:

$\overline{NL}\cong \overline {NL}$ - reflexive property;
$\angle KLN\cong \angle MLN$ - given

Thus, triangles NKL and NML by HA postulate. Congruent triangles have congruent corresponding parts, so

$\overline{KN}\cong \overline{NM}\\ \\\overline{KL}\cong \overline{LM}\ [\text{option D is true}]$

Since

$\overline{KN}\cong \overline{NM},$

then

$7x-4=5x+12\\ \\7x-5x=12+4\\ \\2x=16\\ \\x=8\ [\text{option A is true}]\\ \\MN=KN=7\cdot 8-4=56-4=52\ [\text{option C is true}]$

Option B is false, because KN=52 units.

Option E is false, because LN is congruent KN, not LM

4 0

2 years ago

Simplify the polynomial. Then find its value for the given value of the variable.

vekshin1

Answer:

Step-by-step explanation:

Simplified expression:

$3x^3 -x^3 +5x^3-9x^3$

$2x^3 +5x^3-9x^3$

$7x^3 -9x^3$

$-2x^3$

If x = -1, the value of the expression is:

$-2x^3$

$-2(-1^3)$

$-2(-1)$

$2$

Hope this helps!

3 0

2 years ago

What is the solution for a2 -b2

Sphinxa [80]

2(a-b)

this is the answers

4 0

2 years ago

Read 2 more answers

What are the x and y intercepts for 2x-6y=12 and how do you find them?<br> Thanks!

quester [9]

X intercept is
$\frac{ 2}{6} x$
y intercept is 2

3 0

2 years ago

PLEASE HELP ASAP!!!!! WILL GIVE BRAINLIEST!

dusya [7]

If I am not mistaken it is D.

Can I please be Brainliest?

3 0

3 years ago

Read 2 more answers