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3 years ago

Can you guys plz help

Mathematics

1 answer:

Troyanec [42]3 years ago

8 0

Answer:

20 pieces

Step-by-step explanation:

x= the entire pizza

if 4/5x=16

divide both sides by 4

1/5x=4

multiply both sides by 5

x=20

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X=3y-11, 4x-3y=-26 Substitution

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4 years ago

Can some pleaseee help me? I beg you it’s due tomorrow and it’s 5th grade

Leno4ka [110]

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3 years ago

The factored form of a quadratic equation is y=(2x+1)(x-5), and the standard form is y=2x²-9x-5. Which of the following statemen

Troyanec [42]

Answer:

<h2>B) The x-intercepts are -1/2 and 5,</h2><h2>and the y-intercept is -5.</h2>

Step-by-step explanation:

The intercept form of a quadratic equation y = ax² + bx + c:

$y=a(x-p)(x-q)$

$\text{x-intercepts:}\ p\ \text{and}\ q\\\\\text{y-intercept}:\ a(-p)(-q)$

We have the equation:

$y=2x^2-9x-5=(2x+1)(x-5)$

$2x+1=2\left(x+\dfrac{1}{2}\right)\to y=2\left(x+\dfrac{1}{2}\right)(x-5)$

$y=2\bigg(x-\left(-\dfrac{1}{2}\right)\bigg)(x-5)$

Therefore

$a=2\\\\x-intercepts:\ p=-\dfrac{1}{2}\ \text{and}\ q=5\\\\\text{y-intercept:}\ (2)\left(-\dfrac{1}{2}\right)(5)=-5$

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3 years ago

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Lana71 [14]

Answer:

cosine = adjacent/hypotenuse

cos A = 20/29 (choice: yellow)

Step-by-step explanation:

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3 years ago

Read 2 more answers

The cost of tuition at a college is $12,000 and is increasing at the rate of 6% each year. Use exponential function to find the

Gnesinka [82]

Answer:

The cost of tuition fee after 4 years is $15,149.72.

Step-by-step explanation:

Exponential function:

$A=P(1+r)^n$

A= the amount after n years

P= Initial amount

r= rate of increasing

n= time in years

The cost of tuition at a college is $12,000. It is increasing at the rate of 6% each year.

Here, P= $12,000, r= 6%= 0.06, n= 4 years.

$\therefore A=12,000(1+0.06)^4$

$\Rightarrow A= 12000(1.06)^4$

=$15,149.72

The cost of tuition fee after 4 years is $15,149.72.

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4 years ago