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2 years ago

Find the midpiont between y and 31 is -5 find y

Mathematics

2 answers:

LenKa [72]2 years ago

5 0

Answer:

y=-41

Step-by-step explanation:

$\frac{y+31}{2} =-5\\y+31=-5 \times 2\\y+31=-10\\y=-10-31\\y=-41$

SCORPION-xisa [38]2 years ago

5 0

Y=41 would be your correct answer.

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What are 5 consecutive even integers that add up to 0

ale4655 [162]

$2a,2a+2,2a+4,2a+6,2a+8\\\\
2a+2a+2+2a+4+2a+6+2a+8=0\\\\
10a+20= 0\ \ \ \ | subtract\ 20\\\\
10a=-20\ \ \ \ | divide\ by\ 10\\\\
a=-2\\\\
Numers\ are: \ -2,0,2,4,6.$

4 0

4 years ago

Read 2 more answers

What is the solution to -x2 + 5x - 3

CaHeK987 [17]

The solution to the equation is $x=\frac{5-\sqrt{13}}{2}$ and $x=\frac{5+\sqrt{13}}{2}$

Explanation:

Given that the equation is $-x^2+5x-3=0$

We need to determine the solution of the equation.

The solution of the equation can be determined using the quadratic formula.

The quadratic formula is given by

$x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}$

Hence, from the equation, we have,

$a=-1,\:b=5,\:c=-3$

Substituting these values in the quadratic formula, we get,

$x=\frac{-5\pm \sqrt{5^2-4\left(-1\right)\left(-3\right)}}{2\left(-1\right)}$

Simplifying, we get,

$x=\frac{-5\pm \sqrt{25-12}}{-2}$

Simplifying the terms within the root, we get,

$x=\frac{-5\pm \sqrt{13}}{-2}$

Thus, the roots of the equation are $x=\frac{-5+ \sqrt{13}}{-2}$ and $x=\frac{-5- \sqrt{13}}{-2}$

Taking out the negative sign, we get,

$x=\frac{-(5- \sqrt{13})}{-2}$ and $x=\frac{-(5+ \sqrt{13})}{-2}$

Cancelling the negative sign, we get,

$x=\frac{5-\sqrt{13}}{2}$ and $x=\frac{5+\sqrt{13}}{2}$

Thus, the solutions of the equation are $x=\frac{5-\sqrt{13}}{2}$ and $x=\frac{5+\sqrt{13}}{2}$

7 0

3 years ago

a number is less than 200 and greater than 100 the ones digit is 5 less than 10.the tens digit is 2 more than the ones digit.wha

postnew [5]

It's between 101 and 199.

5 less than 10 is 5.
2 more than 5 is 7

My guess is 157

5 0

3 years ago

Find the length of AB if AC=18 and BC=7

kotegsom [21]

Answer:

Step-by-step explanation:

Step 1:

AC + BC = AB Equation

Step 2:

18 + 7 = AB Substitute

Answer:

25 Add

Hope This Helps :)

3 0

3 years ago

Look at the image below.<br><br> Find the area of the parallelogram.

Daniel [21]

Answer:

5 x 8 = 40

Step-by-step explanation:

the formula for the area of a parallelogram is a = bh. Its the same as a square or rectangle. So you just have to multiply the lenght (5) and width (8) which equals 40.

Hope this help have a great day!

5 0

2 years ago