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3 years ago

Which will result in a perfect square trinomial?

Mathematics

1 answer:

Andru [333]3 years ago

7 0

There no awnser to give if you dont give a pictre or anything?

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What is the permeter of square ABCD?

marshall27 [118]

Answer:

24.3 units (3 s.f.)

Step-by-step explanation:

Since a square has 4 equal sides,

perimeter of ABCD= 4(length of AB)

Distance between 2 points

= $\sqrt{(y1 - y2)^{2} + (x1 - x2)^{2} }$

Length of AB

$= \sqrt{( { - 2 - 4)}^{2} + {(2 - 3)}^{2} } \\ = \sqrt{( - 6)^{2} + ( - 1)^{2} } \\ = \sqrt{37}$

perimeter of ABCD

$= 4 \sqrt{37} \\ = 24.3 \: units \: (3 \: s.f.)$

7 0

3 years ago

Lauren is given a 12% pay rise.Her new salary is £24,080. What was Lauren's salary before the pay rise?

ExtremeBDS [4]

Answer:

The base salary was £21,500.

Step-by-step explanation:

Giving the following information:

Increase rate (g)= 12%

New salary= £24,080

<u>To calculate the base salary, we need to use the following formula:</u>

<u></u>

Base salary= new salary / (1 + increase rate)

Base salary= 24,080 / (1.12)

Base salary= £21,500

The base salary was £21,500.

5 0

3 years ago

A hot air ballon begins its descent at a rate of 22.5 feet per minute. How long will it take for the balloon's elevation to chan

notka56 [123]

14 minutes. -315÷22.5=14

6 0

3 years ago

A system of inequalities, where x is the rate of a spaceship in a video game and y is where the ship travels on the screen in 3.

Naddika [18.5K]

Answer:

Option B.

Step-by-step explanation:

On a coordinate plane, 2 solid straight lines and their shaded region are shown. We need to find the system of inequalities.

It is given that the first line is vertical at x = -2. Everything to the right of the line is shaded. It means the value of x must be greater than or equal to -2.

$x\ge -2$

The second line has a positive slope and goes through (-2, -6) and (0, 0).

If a line passes through two points, then the equation of line is

$y-y_1=\dfrac{y_2-y_1}{x_2-x_1}(x-x_1)$

The line passes through the point (0,0) and (-2,-6). The equation of line is

$y-0=\dfrac{-6-0}{-2-0}(x-0)$

$y=3x$

Everything to the left of the line is shaded. It means the sign of inequality is ≥.

$y\ge 3x$

Missing sign in both inequalities is ≥.

Therefore, the correct option is B.

3 0

3 years ago

What is 21 to the 78th power

ivann1987 [24]

This is the answer it would be easier to just use a graphing calculator to solve questions like that

6 0

3 years ago