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3 years ago

15

Amanda bought 19 packs of cookies for $22.99 from the supermarket. How many packs of cookies can she buy for $59.29?

1 answer:

lbvjy [14]3 years ago

5 0

Answer:

49

Step-by-step explanation:

1.21 x 49 = 59.29

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P(x) = 3x + 4<br> q(X) = 2x^2<br> Find a(p(x))

Kazeer [188]

Answer:

0

Step-by-step explanation:

ap/2

8 0

4 years ago

True or false (Picture provided)

Naya [18.7K]

<h2>Hello!</h2>

The answer is: True.

<h2>Why?</h2>

A counterexample is a way that we can prove that something is not true about a mathematical equation or expression, it's also considered as an exception to a rule.

So:

$sec^{2}x-1=\frac{cosx}{cscx}\\\\tg^{2}x=\frac{cosx}{\frac{1}{sinx}}\\\\\frac{1-cos2x}{1+cos2x}=cosxsinx$

Then, evaluating we have:

$\frac{1-cos(2*45)}{1+cos(2*45)}=cos(45)*sin(45)\\\\\frac{1-0}{1+0}=\frac{\sqrt{2} }{2}*\frac{\sqrt{2}}{2}\\\\1=\frac{(\sqrt{2})^{2} }{4}\\\\1=\frac{2}{4}\\\\1=\frac{1}{2}$

Hence, we can see that the equation is not fulfilled, so, 45° is a counterexample for $sec^{2}x-1=\frac{cosx}{cscx}$ and the answer is true.

Have a nice day!

3 0

4 years ago

!!Please help!! Its due tmr please thanks !!

bezimeni [28]

Answer:

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5 0

3 years ago

6 ft<br> 8 ft<br> 452.16 ft<br> 150.72 ft<br> 48 ft<br> 904.32 ft

Shtirlitz [24]

Answer:

The answer is 904.778 $ft^3$ .

Step-by-step explanation:

-You first need the formula for the volume of a cylinder:

$V = \pi r^2h$

-Take the radius and the height of the cylinder for the formula:

$V = \pi 6^2 8$

-Then, you solve the formula:

$V = \pi 6^2 8$

$V = \pi \times 6^2 \times 8$

$V = \pi \times 36 \times 8$

$V = \pi \times 288$

$V = 288\pi \approx 904.778$

So, the answer is 904.778 $ft^3$ .

6 0

3 years ago

Which of the following is equivalent to 25x2+16−40x−64y2? Select two.

Marat540 [252]

The equivalent expression to the given expression 25x²+16−40x−64y² are; (5x-4)²−64y² and (5x−4−8y)(5x+4+8y)

<h3>Difference of two squares</h3>

According to the question:

We are required to determine the equivalent expression.

When we try to factorise the given expression systematically; we have;

25x²+16−40x−64y² = (25x²+16−40x)−64y²

By the difference of two squares concept;

(25x²+16−40x) = (5x-4)²

Therefore, an equivalent expression is; (5x-4)²−64y²

Similarly, (5x-4)²−64y² is the difference of two squares and can be rewritten as; (5x−4−8y)(5x+4+8y)

Hence, we have the suggested expressions as equivalent expressions.

Learn more about equivalent expression:

brainly.com/question/2972832

3 0

2 years ago