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bazaltina [42]
3 years ago
10

Solve: 2x-7>3 or 4-x≤-4

Mathematics
2 answers:
SOVA2 [1]3 years ago
7 0

Steps to solve:

2x - 7 > 3

~Add 7 to both sides

2x > 10

~Divide 2 to both sides

x > 5

Steps to solve:

4 - x <= -4

~Subtract 4 to both sides

-x <= -8

~Divide -1 to both sides

x >= 8

Best of Luck!

fredd [130]3 years ago
3 0

Answer:

2x-7>3     ----->     x>5

4-x≤-4      ------>    x\geq 8

Step-by-step explanation:

2x-7>3

2x-7+7>3+7

2x>10

2x/2 > 10/2

x>5

4-x≤-4    

4-x-4 \leq -4-4

-x \leq -8

(-x)(-1) \geq (-8) (-1)

x \geq 8

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The midpoint of UV is (5, -10). The coordinates of one endpoint are U(3,6). Find the coordinates of endpoint V.
Grace [21]

The answer is (7, -26) for The second endpoint.  

We'll call the midpoint M. In order to find this, we must first note that to find a midpoint we need to take the average of the endpoints. To do this we add them together and then divide by 2. So, using that, we can write a formula and solve for each part of the k coordinates. We'll start with just x values.

(Ux + Vx)/2 = Mx

(Vx + 3)/2 = 5

Vx + 3 = 10

Vx = 7

And now we do the same thing for y values

(Uy + Vy)/2 = My

(Vy + 6)/2 = -10

Vy + 6 = -20

Vy = -26

This gives us the final point of (7, -26)

6 0
3 years ago
Read 2 more answers
Here's another question, same one (kind of) <br> 5x - 8 = 3x + 4
cluponka [151]

Answer:

x=6

Step-by-step explanation:

5x - 8 = 3x + 4

    +8         +8

5x=3x+12

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/2    /2

x=6

6 0
3 years ago
Expand the following:<br> 1/5 (10x-25)
mario62 [17]
<span>This must be your answer:
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3 0
3 years ago
Pedro is building a playground in the shape of a right triangle. The base of the triangle is 18 yards. The height of the triangl
Bezzdna [24]

Answer:

567 square yards

Step-by-step explanation:

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The base of the triangle is 18 yards. The height of the triangle is 21 yards.

Hence:

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6 0
3 years ago
Solve x2 - 8x - 9 = 0. Rewrite the equation so that it is of the form x2 + bx = c.
barxatty [35]

Answer:

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Explanation:

we have been given with the quadratic equation x^2-8x-9

we compare the given quadratic equation with general quadratic equation

general quadratic is ax^2+bx+c=0

from given quadratic equation a=1,b= -8,c= -9

substituting these values in the formula for discriminant D=b^{2}-4ac

D=(-8)^2-4(1)(-9)=100

Now, to find the value of x

Formula is x=\frac{-b\pm\sqrt{D}}{2a}

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And rewritting the given equation by  shifting 9 to right hand side of the given equation and taking minus inside the bracket so as to convert it in the form of

x^2+bx=c

4 0
3 years ago
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