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3 years ago

–6 + 4k = 2(–2k + 5) + 6k

Mathematics

1 answer:

balu736 [363]3 years ago

5 0

Answer:

k=8

Step-by-step explanation:

yes

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Question and examples in picture. Please help

kondor19780726 [428]

Answer:

$a = 7, LN = 105$

Step-by-step explanation:

$LM = 8a$

$\textrm{LM also equals 56}$

Solve for a

$8a = 56 \rightarrow a =7$

Given that a = 7, solve for MN

$MN = 7a$

$MN = 7(7) \rightarrow 49$

In order to find LN, add 49 and 56 together

$49 + 56 = 105$

$LN = 105$

3 0

4 years ago

Simple Algebra problem. Includes the x and y axis. Also need help finding the perimeter.

Leona [35]

Answer:

31.5cm²

Step-by-step explanation:

area of a triangle =1/2 b h

b= 7cm

h=9cm

1/2×7×9

= 1/2×63

= 31.5cm²

hypotenuse is unknown so,

c²=a²+b²

c²= 7² + 9²

= 49 + 81

c²= 130

c= 11.4cm

perimeter= 7 +9+11.4

=27.4cm

pls note that no unit was stated

3 0

3 years ago

Find the missing angle please help

irina [24]

Answer:

I think the answers 66 not quite sure though

Step-by-step explanation:

I just subtracted 111 and 45

4 0

3 years ago

A certain brand of coffee costs $5.99 for 12.4 ounces. What is the unit rate? Enter your answer, rounded to the nearest cent, in

Setler [38]

Answer:

$0.48 per ounce

Step-by-step explanation:

<u>To find the unit rate divide the cost by the number of ounces:</u>

$5.99 / 12.4 = $0.48 (rounded)

3 0

2 years ago

Find a round to the nearest tenth 12 22 75 x x=?

Radda [10]

Answer:

<h3><u>By law of Sines</u></h3><h3> $\frac{Sin75^o}{22} =\frac{Sinx}{12}$ </h3>

$\frac{Sin75}{22}(12)=\frac{Sinx}{12} (12)$

$0.5268=Sinx$

$Sin^(0.5268)=x$

$x=31.789$

$x=31.79^o$

<h3><u>-----------------------</u></h3><h3><u>hope it helps..</u></h3><h3><u>have a great day!!</u></h3>

4 0

3 years ago