3 years ago

I need help with this please

Mathematics

1 answer:

Verizon [17]3 years ago

5 0

Answer:

Step-by-step explanation:10

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If DE =11 and CE =27, what is CD?

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Step-by-step explanation:

Subtract DE from CE and you will get the value of CD

27 - 11 = 16

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3 years ago

Solve kx + 8 = 4 for x.

Harlamova29_29 [7]

K×x+8=4
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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

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2 years ago

87 - 4x= 43<br><br> I need to solve for x

egoroff_w [7]

Answer:

x = 11

Step-by-step explanation:

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