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3 years ago

Some Quadratic functions I desperately need some help

Mathematics

1 answer:

Daniel [21]3 years ago

6 0

Answer:

$\large\boxed{0=3x^2+2x-2}\\\\\boxed{0=-3x+3x^2-2}\\\\\boxed{0=-1x-2+3x^2}$

Step-by-step explanation:

$\text{The quadratic equation:}\\\\ax^2+bx+c=0\\\\a-coefficient\\\\c-constant\ term\\\\\text{We have}\ coefficient\ a=3\ \text{and}\ constant\ term\ c=-2.\\\\\text{Therefore the equation is:}\\\\3x^2+bx-2=0\\3x^2-2+bx=0\\bx+3x^2-2=0\\bx-2+3x^2=0\\-2+3x^2+bx=0\\-2+bx+3x^2=0$

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Joyce baked a cake using 2 3/4 cups of brown sugar and 1 3/4 cups of powdered sugar. How many cups of sugar did she use in her c

BartSMP [9]

So she has used two kinds of sugar, brown and powdered.

She used $2 \frac{3}{4}$ cups of brown sugar and $1 \frac{3}{4}$ cups of powdered sugar: we need to add the two numbers:

$2 \frac{3}{4}$ + $1 \frac{3}{4}$ = 2+1+ $\frac{3}{4}+ \frac{3}{4}$ =3 $\frac{6}{4}=3+1+ \frac{2}{4} =4 \frac{2}{4}=4 \frac{1}{2}=4.5$

so the correct answer is 4.5

4 0

4 years ago

If the Williams family has a monthly income of $3000 how much do they spend on clothing and entertainment

MA_775_DIABLO [31]

$360

To solve this, multiply 3000 by 12%.

3000 x 12%

To convert percentages to decimals, divide them by 100 and remove the % sign.
So... 12% = 0.12

= 3000 x 0.12
= 360

5 0

4 years ago

What is 56/30 in its simplest form?

lbvjy [14]

Answer:

$1\frac{13}{15}$

Step-by-step explanation:

plz mark brainliest

6 0

2 years ago

Read 2 more answers

Need help with calculus asap with steps

Tasya [4]

Answer:

p=7/2

Step-by-step explanation:

Rember that a p series can be represented by

$\frac{1}{k {}^{p} }$

Here, notice that

$\frac{1}{8 \sqrt{2} } = \frac{1}{2 {}^{3} \sqrt{2} } = \frac{1}{2 {}^{3} \times 2 {}^{ \frac{1}{2} } } = \frac{1}{2 {}^{ \frac{7}{2} } }$

This is true for all parts of the series because

$27 \sqrt{3} = 3 {}^{ \frac{7}{2} }$

So p=7/2

3 0

3 years ago

A flagpole broke in a storm. It was originally 81 feet tall. 28 feet are still sticking straight out of the ground, where it sna

maks197457 [2]

Check out the attached image.
Point P = base of the pole
Point Q = point where the pole broke
Point R = point where the tip of the pole landed on the ground.

We're told that "28 feet are still sticking straight out of the ground", so PQ = 28 is the vertical leg of the right triangle. The horizontal leg is unknown, so we'll call it x, making PR = x. The hypotenuse is QR = 53 because 81-28 = 53. This is the left-over amount after taking off the 28 feet initially out of the ground from the 81 ft pole.

In short, we have these three values
a = x is one of the legs
b = 28 is the other leg
c = 53 is the hypotenuse

Use the Pythagorean Theorem to find x
a^2 + b^2 = c^2
x^2 + 28^2 = 53^2
x^2 + 784 = 2809
x^2 = 2809 - 784
x^2 = 2025
x = sqrt(2025)
x = 45

The end of the pole is 45 feet away from the base

Answer: 45 feet

8 0

3 years ago

Some Quadratic functions I desperately need some help ​

Some Quadratic functions I desperately need some help