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zmey [24]
3 years ago
10

Y=x-2 y=3x+5 solve the simultaneous equations

Mathematics
2 answers:
nika2105 [10]3 years ago
8 0

Answer:

x = -17/2

y= -13/2

Step-by-step explanation:

look at the photo

DENIUS [597]3 years ago
3 0

hope this helps you........

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In a triangle, the measure of the first angle is twice the measure of the second angle. The measure of the 3rd angle is 68 degre
WINSTONCH [101]
To give every angle a label:

First angle = 2x
Second angle = x
Third angle = x + 68
So, because the sum of the interior angles of the triangle is 180°, we can say that: 2x + x + (x + 68) = 180

2x + x + x = 4x

4x + 68 = 180

Isolating for x we get: x = (180-68)/4 x = 28

Because the first angle is twice as large and the third angle is greater than the second angle, the measure of the smallest angle is 28°.
7 0
3 years ago
melina walked 9/12 mile day dor 5 days. what was the total distance in 32 miles, she walked in the 5 days?
Step2247 [10]
9/12 times 5 is 45/ 60 which is equal to 3/4 of a mile. I’m afraid I didn’t understand the question but I hope this helps.
7 0
3 years ago
Point slope form. (-5,-1) and (6,-5)
TEA [102]

Step-by-step explanation:

The point-slope form of an equation of a line:

y-y_1=m(x-x_1)

<em>m</em><em> - slope</em>

<em>(x₁, y₁)</em><em> - point on a line</em>

The formula of a slope:

m=\dfrac{y_2-y_1}{x_2-x_1}

We have two points (-5, -1) and (6, -5). Substitute:

m=\dfrac{-5-(-1)}{6-(-5)}=\dfrac{-5+1}{6+5}=-\dfrac{4}{11}

Put the value of a slope and coordinates of a point to the equation of a line:

(-5,\ -1),\ m=-\dfrac{4}{11}\\\\y-(-1)=-\dfrac{4}{11}(x-(-5))\\\\y+1=-\dfrac{4}{11}(x+5)

(6,\ -5),\ m=-\dfrac{4}{11}\\\\y-(-5)=-\dfrac{4}{11}(x-6)\\\\y+5=-\dfrac{4}{11}(x-6)

6 0
3 years ago
If you can tell me what the missing number is.
Orlov [11]

Answer:

6

Step-by-step explanation:

So, to start answering this, lets recall the formula for a rectangles volume:

This formula is :

V=h*w*l

Lets plug in what we know, and solve for the missing variable.

We know that height(h) is 7.

We know that width(w) is 9.

We know that volume(V) is 378.

We are missing length(l)

So:

378=7*9*l

To find length(l), we must iscolate it.

To do this, we must get rid of the 7 and 9.

So lets start by dividing 378 by 9:

378/9=7*9/9*l

=

42=7*l

Now lets do the same thing with the 7 to iscolate l:

42/7=7/7*l

=

6=l

So our missing length(l) is 6.

Answer:

l = 6

Hope this helps!

5 0
3 years ago
If two events are independent, then:
LuckyWell [14K]

Answer:

D

Step-by-step explanation:

Two events are said to be independent if the occurence of one event does not affect the occurence of the other.

Note:

A. there sum cannot be equal to 1

B. Mutually exclusive events are events with posibility of happening at thesame time

C. When intersection is zero, it means the set is empty, because intersection of an empty set is equal to an empty set

Thus, option D feels most appropriate

3 0
3 years ago
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