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3 years ago

If x = -2, then x 2 - 7x + 10 equals

Mathematics

2 answers:

BaLLatris [955]3 years ago

8 0

The answer to your question is 20

gavmur [86]3 years ago

4 0

(-2)2 - 7(-2) + 10
-4 - (-14) +10
-4 + 14 +10
10 + 10 = 20

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Examine the expression. 17x – 34xy Which is an equivalent expression?

777dan777 [17]

Answer:

17x(1 - 2y)

Step-by-step explanation:

Given

17x - 34xy ← factor out 17x from each term

= 17x(1 - 2y) ← in factored form

7 0

3 years ago

Read 2 more answers

50 points hurry 150 times 586 do the math

galben [10]

Hello,

150 x 586 equals 87,900.

Hope this helps!

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3 years ago

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Please answer this question for 25 points and brainliest!!

Lady bird [3.3K]

Answer:

64 cm²

Step-by-step explanation:

Suppose the original paper was x cm on a side. Then the original perimeter was 4x.

When the square is folded in half, two of the sides are now x/2, so the perimeter is ...

x + x/2 + x + x/2 = 3x

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The area of the original paper is ...

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3 0

4 years ago

I can’t figure this out

RSB [31]

Answer:

$\large{60^o\to\dfrac{19\pi}{3}\\\\288^o\to\dfrac{18\pi}{5}\\\\315^o\to\dfrac{23\pi}{4}\\\\80^o\to\dfrac{22\pi}{9}}$

Step-by-step explanation:

$\text{The formula of conversion of degrees to radians:}\ \dfrac{\theta \pi}{180}\\\\360^o=2\pi\\\\60^o=\dfrac{60\pi}{180}=\dfrac{\pi}{3}\qquad\dfrac{19\pi}{3}=6\pi+\dfrac{\pi}{3}=\dfrac{\pi}{3}\\\\288^o=\dfrac{288\pi}{180}=\dfrac{8\pi}{5}\qquad\dfrac{18\pi}{5}=2\pi+\dfrac{8\pi}{5}=\dfrac{8\pi}{5}\\\\315^o=\dfrac{315\pi}{180}=\dfrac{7\pi}{4}\qquad\dfrac{23\pi}{4}=4\pi+\dfrac{7\pi}{4}=\dfrac{7\pi}{4}\\\\80^o=\dfrac{80\pi}{180}=\dfrac{4\pi}{9}\qquad\dfrac{22\pi}{9}=2\pi+\dfrac{4\pi}{9}=\dfrac{4\pi}{9}$

8 0

3 years ago

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En la feria una pera tiene un valor de b pesos y una manzana cuesta 7 pesos menos.la señora Rina compro 4 peras y una manzana. E

marin [14]

Answer:

El total que la señora Rina pagó por sus frutas, en términos de b, es:

5b - 7

Step-by-step explanation:

Para resolver este ejercicio, primero sacaremos las variable que nos brindan:

Costo de la pera = b
Costo de la manzana = b - 7 (esto se debe a que la manzana cuesta 7 pesos menos que la pera, tal como dice el enunciado).

Ahora, nos centraremos en la compra realizada por la señora Rina, donde se menciona que:

Compra de la señora Rina = 4 peras + 1 manzana

Ahora, como si esto fuera una ecuación, vamos a reemplazar las manzanas y las peras por las variables que tenemos de su costo:

Compra de la señora Rina = 4b + b - 7

Y procedemos a operar:

Compra de la señora Rina = 5b - 7 (sumando 4b + b)

Por lo tanto, la compra de la señora Rina, en términos de b, le ha costado 5b - 7.

6 0

3 years ago