All categories

3 years ago

GIVE THE RIGHT ANSWER AND PROVE THAT ITS RIGHT

Mathematics

2 answers:

Lunna [17]3 years ago

5 0

The right answer is 56

SSSSS [86.1K]3 years ago

3 0

a = 56

given 28 = $\frac{1}{2}$ a

multiply both sides by 2 to eliminate the fraction

56 = a

As a check

$\frac{1}{2}$ × 56 = 28 ← True

You might be interested in

Which of the following best describes the pattern in the diagram as you move<br> from left to right?

olga_2 [115]

The answer is a, it adds one block

5 0

3 years ago

249798.828806 rounded to the nearest ten

NNADVOKAT [17]

Answer: 249800

Step-by-step explanation:

Uhh you round it.

5 0

1 year ago

Ming paid $8 for every item except peppers. was her bag lighter than or heavier than 4 pounds? show addition using as few steps

denis23 [38]

If there was a chart with this that would be helpful but at this time with the information you have given you can not solve this problem

4 0

3 years ago

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

Help me please I need help

olasank [31]

Answer:

Step-by-step explanation:

7 0

2 years ago