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babymother [125]
3 years ago
14

Help me please for my final

Mathematics
2 answers:
Vadim26 [7]3 years ago
5 0

Answer:

Equation of line l,

3x-4y=1/2

y=3/4x-1/2

we get,

slope of line l =3/4

Equation of line m,

x-5=2y

y=1/2-5/2

Hence slope of line m=1/2

Slope of line l is not equal to slope of line m. Hence the line are not parallel.

Slope of line l* slope of line m ,

(3/4)*(1/2) =3/8

Since the product of slope of line l and the slope of line m is not equal to -1, the lines are not perpendicular.

Hence the lines are neither perpendicular nor parallel..

LUCKY_DIMON [66]3 years ago
4 0

Answer:

none are parallel

Step-by-step explanation:

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Someone answer this please it's for edguniety
KengaRu [80]
D = 171 - (61+53) = 171 -124 = 47
E = 171 - 90 = 81
A = 81 - (34+24) = 81 - 58 = 23
B = 61 - 23 = 38
C = 90 - (33+ 38) = 90 - 71 = 19

answer is B.
3 0
4 years ago
$1 500 computer 7 percent tax
Salsk061 [2.6K]

Answer:

$105

Step-by-step explanation:

Multiply 1,500 (the price) by the tax 0.07 = $105

4 0
3 years ago
What is 4 3/4 + 7/8 showing all work
Mekhanik [1.2K]
4 \frac{3}{4} + \frac{7}{8}

Convert  mixed numbers  to improper fractions

=  \frac{19}{4} + \frac{7}{8}

Find de LCD  for 4 and 8 :

Factor each denominator  into its primes:

4 = 2^2


8 = 2^3

Find the  least common denominator 2^3 = 8

Adjust  fractions  based on  the LCD :

\frac{19*2}{8} +  \frac{7}{8}

Since the  denominators are equal , combine the fractions:

\frac{2*19+7}{8}

\frac{38+7}{8}

=  \frac{45}{8}

Therefore:

Convert  improper fractions to mixed numbers

= 5 \frac{5}{8}

hope this helps!
7 0
3 years ago
4x + 5 = 25 x = 2 x = 5 x = 2 x = 7
olchik [2.2K]

Hi there!

Answer:

\huge\boxed{x = 5}

4x + 5 = 25

Subtract 5 from both sides:

4x + 5 - 5 = 25 - 5

4x = 20

Divide both sides by 4:

4x/4 = 20/4

x = 5.

3 0
3 years ago
7. 2x3 – 16x² – 40x=0
kondor19780726 [428]

Answer:

x=0

Step-by-step explanation:

x^2-8x-2=0

x=±3√2−4

6 0
3 years ago
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