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3 years ago

Please help me with this problem

Mathematics

1 answer:

sineoko [7]3 years ago

7 0

Answer:

$4$

Step-by-step explanation:

$\frac{ {3x}^{2} -2x + 7}{2x+5} \\ \frac{3( - 1) {}^{2} - 2( - 1) + 7}{2( - 1) + 5 } \\ \frac{3 + 2 + 7}{ - 2 + 5} \\ \frac{12}{3} = 4$

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Hay tres paralelos para el curso de cálculo diferencial y tres paralelos para algebra lineal. Un estudiante desea tomar ambos cu

Lelu [443]

Answer:

mi español no es tan bueno si hay algún error en esto entonces lo siento

cursos en diferencial = a, b, c

cursos de álgebra = p, q, r

conjunto de estudiantes tomando ambos = {(a, p), (a, q), (a, r), (b, p), (b, q), (b, r), (c,p),(c,q),(c,r)}.

Step-by-step explanation:

márcame como el más inteligente

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3 years ago

X squared+ y squared = 2 y = 2x squared – 3 Which of the following describes the system?

cluponka [151]

Answer:

$x=-1,1,-\sqrt{\frac{7}{4} },\sqrt{\frac{7}{4}}$ and $y=-1,\frac{1}{2}$

The ordered pair solutions are $(-\sqrt{\frac{7}{4}},0.5)$ , $(\sqrt{\frac{7}{4}},0.5)$ , $(-1,-1)$ , and $(1,-1)$ .

Step-by-step explanation:

I'm assuming the system is $\left \{ {x^2+y^2=2} \atop {y=2x^2-3}} \right.$ :

$x^2+y^2=2$

$x^2+(2x^2-3)^2=2$

$x^2+(4x^4-12x^2+9)=2$

$x^2+4x^4-12x^2+9=2$

$4x^4-11x^2+9=2$

$4x^4-11x^2+7=0$

$x^4-11x^2+28=0$

$(x^2-7)(x^2-4)=0$

$(4x^2-7)(x^2-1)=0$

$4x^2-7=0$

$4x^2=7$

$x^2=\frac{7}{4}$

$x=\pm\sqrt{\frac{7}{4}}$

$x^2-1=0$

$x^2=1$

$x=\pm1$

$y=2x^2-3$

$y=2(\pm\sqrt{\frac{7}{4}})^2-3$

$y=2({\frac{7}{4}})-3$

$y=\frac{7}{2}-3$

$y=\frac{1}{2}$

$y=2x^2-3$

$y=2(\pm1)^2-3$

$y=2(1)-3$

$y=2-3$

$y=-1$

Therefore, $x=-1,1,-\sqrt{\frac{7}{4} },\sqrt{\frac{7}{4}}$ and $y=-1,\frac{1}{2}$

The ordered pair solutions are $(-\sqrt{\frac{7}{4}},0.5)$ , $(\sqrt{\frac{7}{4}},0.5)$ , $(-1,-1)$ , and $(1,-1)$ .

4 0

2 years ago

Which geometric figure are always paraelograms

kolbaska11 [484]

I don’t know I hope u get it

3 0

3 years ago

Smoothie Stand at Utah’s Wasatch County’s Demolition Derby sells bananas. If John bought 55 lbs. of bananas at $.24 per pound ex

AlladinOne [14]

I'm assuming the 59% achievement means, markup, so hmmmm well, if the bananas cost him $0.24 or 24cents per pound, so a markup of 59% is just 59% of 0.24 then.

whatever% of anything is just (whatever/100) * anything.

therefore, 59% of 0.24 is just (59/100) * 0.24, or 0.1416.

so, if we add 0.1416 to the 0.24, the selling price will be 0.3816, or just 38cents per pound of bananas.

6 0

3 years ago

Read 2 more answers

Choose the solution for the equation 3(p+8) = 2(2p-1)

artcher [175]

Answer:

b) p=26

Step-by-step explanation:

3p + 3 · 8 = 2 ·2p - 2

3p + 24 = 4p - 2

p = 26

4 0

3 years ago