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3 years ago

7

How to solve this problem. I don’t know how to do this and need help desperately

1 answer:

Iteru [2.4K]3 years ago

4 0

There are 4 possibilities for cone or cup to hold your ice cream. There are 3 different sizes to choose from. There are 20 flavors of ace-cream, and then 15 choices of topping. Assuming you must choose 1 flavor of ice cream and 1 topping as the question implies, there are then 4*3*20*15 = 3600 different combinations to choose from. Answer is D: 3600

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What is the value of this expression when x=-1 and Y = 2?<br> 4x3y2

3241004551 [841]

-48 plugging in everything and using PEMDAS it should be -48

8 0

3 years ago

Read 2 more answers

Help Evaluate each expression for d = -3.

Pavel [41]

Answer:
1) 9
2) 7
3) -10
4) -54
5) -64

Step-by-step explanation:
It’s just basic substitution
Hope this helps!

3 0

2 years ago

Find a and b so that f(x) = x^3 + ax^2 + b will have a critical point at (2,3).

Digiron [165]

Using the critical point concept, it is found that a = -3 and b = 7.

<h3>What are the critical points of a function?</h3>

The critical points of a function are the values of x for which:

$f^{\prime}(x) = 0$

In this problem, the function is:

$f(x) = x^3 + ax^2 + b$

Hence, the derivative is:

$f^{\prime}(x) = 3x^2 + 2ax$

Then:

$f^{\prime}(x) = 0$

$3x^2 + 2ax = 0$

$x(3x + 2a) = 0$

$x = 0$

$3x + 2a = 0$

$3x = -2a$

$x = -\frac{2a}{3}$

Since the critical point is at x = 2, we have that:

$-\frac{2a}{3} = 2$

$-2a = 6$

$2a = -6$

$a = -3$

Then:

$f(x) = x^3 - 3x^2 + b$

Critical point at (2,3) means that when $x = 2, y = 3$ , then:

$3 = 2^3 - 3(2)^2 + b$

$8 - 12 + b = 3$

$b = 7$

You can learn more about the critical point concept at brainly.com/question/2256078

4 0

2 years ago

PLEASE HELP <br><br> y/7=x<br> what is y?

AlekseyPX

Answer:

You can't find y in this way

Step-by-step explanation:

You should know the value of x

But you can say

Y=7x

5 0

2 years ago

Angle B = ?<br> Need help.

zaharov [31]

Answer:

angle B = 33.42

Step-by-step explanation:

take angle B as reference angle

using tan rule

tan B = opposite/adjacent

tan B = 6/9

tan B = 0.66

B = $tan^{-1} (0.66)$

B = 33.424

B = 33.42

5 0

3 years ago