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2 years ago

4M +N7 ____ 123 Determine the value of the missing digits

Mathematics

1 answer:

omeli [17]2 years ago

5 0

Answer:

M = 6

N= 7

Step-by-step explanation:

M + 7 = 3

M= 6

6 + 7 = 13, so we get 3 and carry 1

Now 1 + 4 + N = 12

1 + 4 + 7 = 12

So N = 7

Therefore,

46 + 77 = 123

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Help please!!

stepladder [879]

Answer:

it changed 21 Fahrenheit

Step-by-step explanation:

-14.8 - 6.2 = -21

and minus + minus = +

so, -14.8 + 21 = 6.2

i think so that is the right answer

4 0

2 years ago

Given that α and β are the roots of the quadratic equation <img src="https://tex.z-dn.net/?f=2x%5E%7B2%7D%20%2B6x-7%3Dp" id="Tex

siniylev [52]

Answer:

$\large \boxed{\sf \ \ \ p=-11 \ \ \ }$

Step-by-step explanation:

Hello,

$\alpha \text{ and } \beta \text{ are the roots of the following equation}$

$2x^2+6x-7=p$

It means that

$2\alpha^2+6\alpha-7=p \\\\2\beta ^2+6\beta -7=p \\\\$

And we know that

$\alpha= 2\cdot \beta$

So we got two equations

$2(2\beta)^2+6\cdot 2 \cdot \beta -7=p \\\\8\beta^2+12\beta -7=p\\\\ and \ 2\beta ^2+6\beta -7=p \ So \\\\\\8\beta^2+12\beta -7 = 2\beta ^2+6\beta -7\\\\6\beta^2+6\beta =0\\\\\beta(\beta+1)=0\\\\ \beta =0 \ or \ \beta=-1$

For $\beta =0, \ \ \alpha =0, \ \ p = -7$

For $\beta =-1, \ \ \alpha =-2, \ \ p= 2-6-7=-11, \ p=2*4-12-7=-11$

I assume that we are after two different roots so the solution for p is p=-11

b) $\alpha +2 =-2+2=0 \ and \ \beta+2=-1+2=1$

So a quadratic equation with the expected roots is

$x(x-1)=x^2-x$

Hope this helps.

Do not hesitate if you need further explanation.

Thank you

3 0

2 years ago

How many solutions does the inequality x > 7 have? explain.

4vir4ik [10]

X can be anything bigger than 7, and numbers go on forever so infinite

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1 year ago

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What is the 101st term in the sequence 782, 777, 772

denis-greek [22]

$782 + 100(-5)$

=282

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2 years ago

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Five lemons cost $1.80. What<br> is the cost per lemon?

kap26 [50]

Answer:

0.36 cents

Step-by-step explanation:

1.80/5=0.36 <----answer

To check you can do 0.36x5 and get 1.80

6 0

3 years ago