Ask question

Ask question

All categories

2 years ago

15

Help ASAP A TIMED QUIZZZZZ

2 answers:

zhuklara [117]2 years ago

7 0

Answer:

3rd one

Step-by-step explanation:

1 and 1/2 3 times is the third one

beks73 [17]2 years ago

6 0

Answer:

3rd one i think

Step-by-step explanation:

You might be interested in

The perimeter of a rectangle is 42 cm. The longer side has length of 7 cm more than the shorter side. Find the length of longer

Lelu [443]

So to solve, make an equation (x being the shorter side)
2x+2(7+x)=42
So just solve from here.
2x + 14 + 2x =42
4x=28
x=7
So the shorter side is 7, and the longer side is 14.

5 0

3 years ago

Read 2 more answers

Which of the following is a solution of x^2 + 2x + 4?

Kaylis [27]

Answer:

$\displaystyle x_1=-1+\sqrt{3}i$

$\displaystyle x_2=-1-\sqrt{3}i$

Step-by-step explanation:

<u>Second-Degree Equation</u>

The second-degree equation or quadratic equation has the general form

$ax^2+bx+c=0$

where a is non-zero.

There are many methods to solve the equation, one of the most-used is by using the solver formula:

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

The equation of the question has the values: a=1, b=2, c=4, thus the values of x are

$\displaystyle x=\frac{-2\pm \sqrt{2^2-4\cdot 1\cdot 4}}{2\cdot 1}$

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

Since the square root has a negative argument, both solutions for x are imaginary or complex. Simplifying the radical

$\displaystyle x=\frac{-2\pm 2\sqrt{-3}}{2}=-1\pm\sqrt{3}i$

The solutions are

$\displaystyle x_1=-1+\sqrt{3}i$

$\displaystyle x_2=-1-\sqrt{3}i$

7 0

3 years ago

MATH 30 POINTS WILL GIVE BRAINLIEST<br><br> help please

natulia [17]

The fundamental behavior that's important here is that, as $t$ gets arbitrarily large, $a^t$ becomes smaller (decays) if $|a|$ and larger (grows) if $|a|>1$ .

$100\left(1-\dfrac12\right)^t=100\left(\dfrac12\right)^t\implies\dfrac12$

$0.1(1.25)^t\implies1.25>1\implies\text{growth}$

$426(0.98)^t\implies0.98$

$2050\left(\dfrac12\right)^t\implies\text{decay}$

$\left((1-0.03)^{1/2}\right)^{2t}=0.97^t\implies0.97$

3 0

3 years ago

If you only have the original price ($24.50) and the discount is 18% how do you find the sale price?

liberstina [14]

24.5 x (1-18%)
=$20.09

4 0

3 years ago

BRAINLIEST AVAILABLE!!!!<br><br> PLEASE HELP ME WITH THIS!!!<br> Thanks to all helpers!!!!!

larisa [96]

Answer: B

<u>Step-by-step explanation:</u>

-10x² + 12x - 9 = 0

a=-10, b=12, c=-9

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

= $\frac{-12+/-\sqrt{12^{2}-4(-10)(-9)}} {2(-10)}$

= $\frac{-12+/-\sqrt{144-360}} {-20}$

= $\frac{-12+/-\sqrt{-216}} {-20}$

= $\frac{-12} {-20}$ +/- $\frac{\sqrt{-216}} {-20}$

= $\frac{3} {5}$ +/- $\frac{6i\sqrt{6}} {-20}$

= $\frac{3} {5}$ +/- $\frac{3i\sqrt{6}} {10}$

3 0

3 years ago

Read 2 more answers