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3 years ago

12

STEM The average temperature on the planet Neptune is –214 °C. The

1 answer:

stepan [7]3 years ago

7 0

Your mom eats my hair

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Rachel has 4 notebooks.Her mother gives her n notebooks.she wants to use the same number of notebooks in each of her 7 classes.

HACTEHA [7]

Answer:

i think its b

Step-by-step explanation:

3 0

3 years ago

Write an equation bassing through the boint and perpendicular to the given line<br> (-2,2);6x+3y=-9

dexar [7]

Answer:

y=1/2x+3

Step-by-step explanation:

Simplify the eqn

negative reciprocal the slope

plug in the numbers

Ta-Da!

7 0

3 years ago

valina [46]

Answer:

$(10, 0)$

Step-by-step explanation:

Let's try all the options:

$\left \{ {{2x + y = 20} \atop {4x-2y = 40} \right.$

Considering $(10, 0)$ :

$$\left \{ {{2(10) + 0 = 20} \atop {4(10)-2(0) = 40} \right. $\\$

$\left \{ {{20 + 0 = 20} \atop {40-0 = 40} \right.$

$\left \{ {{20= 20} \atop {40 = 40} \right.$

Considering $(0, 10)$ :

$$\left \{ {{2(0) + 10 = 20} \atop {4(0)-2(10) = 40} \right. $\\$

$\left \{ {{0 + 10 = 20} \atop {0-20 = 40} \right.$

$\left \{ {{10= 20} \atop {-20 = 40} \right.$

$\left \{ {{10\neq 20} \atop {-20 \neq 40} \right.$

Considering $(4, 2)$ :

$$\left \{ {{2(4) + 2 = 20} \atop {4(4)-2(2) = 40} \right. $\\$

$\left \{ {{8 + 2 = 20} \atop {8-4 = 40} \right.$

$\left \{ {{10= 20} \atop {4 = 40} \right.$

$\left \{ {{10\neq 20} \atop {4 \neq 40} \right.$

Considering $(10, -10)$ :

$$\left \{ {{2(10) -10 = 20} \atop {4(10)-2(-10) = 40} \right. $\\$

$\left \{ {{20 -10 = 20} \atop {40+20 = 40} \right.$

$\left \{ {{10= 20} \atop {60 = 40} \right.$

$\left \{ {{10\neq 20} \atop {60 \neq 40} \right.$

7 0

3 years ago

elena55 [62]

Answer:

(4, -5)

(3, -2)

7 0

3 years ago

Write as an equation in two variables: k(x) = -4x-1

erma4kov [3.2K]

Answer:

y = -4x - 1

Step-by-step explanation:

k(x) = -4x - 1

replace k(x) with y

y = -4x - 1

8 0

3 years ago

Read 2 more answers