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Nostrana [21]
3 years ago
12

- The expression x² - 5 is prime. Is it true or false

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

Answer:

false

Step-by-step explanation:

X squared minus 5 is not necessarily prime

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-6(x+7)=-4x-2<br> How many solutions does it have
geniusboy [140]

Answer:

Equation have Unique solution i.e x=-20

Step-by-step explanation:

Given Equation:

-6(x+7)=-4x-2

Solving the Equation for 'x'.

           -6(x)-6(7)=-4x-2\\\\-6x-42=-4x-2

Adding '4x'  both sides:

             -6x+4x-42=-4x+4x-2\\\\-6x+4x-42=-2\\\\-2x-42=-2

Adding '42' both sides:

               -2x-42+42=-2+42\\\\-2x=40

                        x=\frac{40}{-2} \\\\x=-20

The equation have Unique solution with the value of x=-20

6 0
3 years ago
Pilar ha comprado un coche, da una entrada y lo quiere pagar en 12 meses. Cada mes va a pagar 600,82€. Si ha dado al principio u
Molodets [167]

Answer:

Pilar va a pagar en total por el coche 14209.84€.

Step-by-step explanation:

Pilar ha comprado un coche, da una entrada y lo quiere pagar en 12 meses.

Cada mes va a pagar 600,82€. Como lo quiere pagar en doce meses, luego de finalizado ese tiempo el precio pagado se calcula como:

12 meses* 600,82€ por mes= 7209,84€

Por otro lado, Pilar ha dado al principio una entrada de 7000€. Entonces, el total a pagar por el coche es calculado como:

7000€ + 7209,84€= 14209.84€

<u><em>Pilar va a pagar en total por el coche 14209.84€.</em></u>

7 0
3 years ago
V^2 = u^2+ 2as<br>u = 12<br>a = -3 s = 18<br>Work out a value of v.​
Shkiper50 [21]

Answer:

use math-way

Step-by-step explanation:

6 0
3 years ago
If the radius of a circle is 18 yd, then the diameter of the circle is 9 yd.
scZoUnD [109]

Answer:

false radius would be the 9 yds. and diameter would be 18 yds

8 0
3 years ago
GURRY FOR BRAINLEIST PLS HURRY
pashok25 [27]

Answer:

C= 10.6

Step-by-step explanation:

AB^2=AC^2+CB^2

C^2=7^2+8^2

C^2= 113

√113=10.630

5 0
3 years ago
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