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tigry1 [53]
3 years ago
13

This afternoon's temperature in Edmonton was 3*C. The weather report predicts that the temperature will fall by 10* during the n

ight. If that happens, hat will be tonights low temperature?
A. 7*C
B. -7*C
C. -10*C
D. -13*C
Mathematics
2 answers:
n200080 [17]3 years ago
6 0
The answer would be B
Ipatiy [6.2K]3 years ago
5 0

Answer:

B

Step-by-step explanation:

3-10

= -7

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In the figure,ABC~ DEF. solve for x
Zinaida [17]

Answer:

B) X = 6

Step-by-step explanation:

The figure transformation is a dilation. And the side lengths increased by two.

8 0
3 years ago
ABC est un triangle rectangle en B.<br> On donne : AB = 7:BC = a et AC = a +5.<br> Calcule a
Afina-wow [57]

Answer:

Step-by-step explanation:

salut :

en utilisant le theorem de Pythagore on obtient :

AC²= AB² + BC²

(a+5)² = 7²+a²

a²+10a+25 = 49+a²

10a+25 =49

10a =24

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8 0
3 years ago
Which solution to the equation 1/x-1 = x-2/2x^2-2 is extraneous
melamori03 [73]

<u>Solution-</u>

The equation given here,

\frac{1}{x-1} =\frac{x-2}{2x^2-2}

\Rightarrow 2x^2-2=(x-1)(x-2)

\Rightarrow 2x^2-2=x^2-3x+2

\Rightarrow x^2+3x-4=0

\Rightarrow x^2 +4x-x-4=0

\Rightarrow (x-1)(x+4)=0

\Rightarrow x=1 \ and -4

But, at x=1, \frac{1}{x-1} \ and \ \frac{x-2}{2x^2-2} becomes infinity so it can't be a solution to the equation.

∴ x=1 is the extraneous solution of the equation

3 0
4 years ago
Read 2 more answers
The area of a rectangle is given by a=6x2y+4y2x and the width of the rectangle is w=2xy. what is the length, l, of the rectangle
sattari [20]
Hello : 
a = w l 
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l = 2xy(3x+2y) /(2xy)
l = 3x+2y
5 0
3 years ago
Select the correct answer. Identify the axis of symmetry of the function graphed below. A. x = -3 B. x = -1 C. x = 1 D. x = -4
Ainat [17]

Answer:

B

Step-by-step explanation:

The vertex of the parabola is (-1,-4)

So the axis of symetry is x=-1

3 0
4 years ago
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