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kakasveta [241]
3 years ago
12

Evaluate if m=1 and n=2 what’s 15m/n+1-m^2+n

Mathematics
1 answer:
Jobisdone [24]3 years ago
7 0

\\ \sf\longmapsto \dfrac{15m}{n}+1-m^2+n

\\ \sf\longmapsto \dfrac{15(1)}{2}+1-(1)^2+2

\\ \sf\longmapsto \dfrac{15}{2}+3-1

\\ \sf\longmapsto \dfrac{15}{2}+2

\\ \sf\longmapsto \dfrac{15+4}{2}

\\ \sf\longmapsto \dfrac{19}{2}

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Write the equation of the line, in standard form, that has a y-intercept of 2 and is parallel to 2x + y = -5. Include your work
PtichkaEL [24]
We first convert the given equation of the line to slope-intercept form, giving us,
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3 years ago
−4+bx=2x+3(x+1) In the equation shown above, b is a constant. For what value of b does the equation have no solutions?
Likurg_2 [28]

Answer:

b=5

Step-by-step explanation:

−4+bx=2x+3(x+1)  (expand parenthesis first, i.e PEDMAS)

−4 + bx = 2x + 3x + 3

−4 + bx = 5x + 3   (move all x terms to one side and constants to another)

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(5 - b)x = - 7

x = -7 / (5-b)

we can see that 5-b is in the denominator. Recall that for a fraction, the denominator cannot be zero otherwise the expression is undefined. (i.e no solutions)

hence the  expression is undefined if,

(5-b) = 0

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7 0
3 years ago
Look at the attachment
Maslowich

Answer:

x=-6

For PA:  78-29=49

For AQ:  48+3=51

Step-by-step explanation:

The line is from left to right PAQ

It says PQ is 100 which is the whole line

PA +AQ is PQ so that means:

-13x-29-8x+3=100

-21x-26=100

-21x=126

x=-6

Plug in the x values to PA and AQ

For PA:  78-29=49

For AQ:  48+3=51

7 0
3 years ago
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zalisa [80]
The answer would be A. No solution
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2 years ago
What is 10 times 1243
vovangra [49]

the answer would be 12,430.

8 0
3 years ago
Read 2 more answers
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