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Fofino [41]
3 years ago
8

HELP ME PLZZ I NEED HELLPPP!!!!!1

Mathematics
2 answers:
marin [14]3 years ago
7 0

Answer:

answer is not

Step-by-step explanation:

clear sorry

Svetlanka [38]3 years ago
5 0

Answer:

-225 feet

Step-by-step explanation:

The submarine started at -40 feet and wend down 185 feet which means the submarine is now at -225 feet.

Work:

-40 + (-185)

-40-185

-225

Final Answer: -225 feet

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What are the approximate values of the minimum and maximum points of f(x) = x5 − 10x3 + 9x on [-3,3]? A. maximum point: (–2.4, 3
slava [35]

Answer:

(-2.4, 37.014)

Step-by-step explanation:

We are not told how to approach this problem.  

One way would be to graph f(x) = x^5 − 10x^3 + 9x on [-3,3] and then to estimate the max and min of this function on this interval visually.  A good graph done on a graphing calculator would be sufficient info for this estimation.  My graph, on my TI83 calculator, shows that the relative minimum value of f(x) on this interval is between x=2 and x=3 and is approx. -37; the relative maximum value is between x= -3 and x = -2 and is approx. +37.  

Thus, we choose Answer A as closest approx. values of the min and max points on [-3,3].  In Answer A, the max is at (-2.4, 37.014) and the min at (2.4, -37.014.

Optional:  Another approach would be to use calculus:  we'd differentiate f(x) = x^5 − 10x^3 + 9x, set the resulting derivative = to 0 and solve the resulting equation for x.  There would be four x-values, which we'd call "critical values."

3 0
3 years ago
Read 2 more answers
An ice cream store sells 28 flavors of ice cream. Determine the number of 4 dip sundaes.
weeeeeb [17]

Answer:

20,475\ ways

Step-by-step explanation:

we know that

<u><em>Combinations</em></u> are a way to calculate the total outcomes of an event where order of the outcomes does not matter.

To calculate combinations, we will use the formula

C(n,r)=\frac{n!}{r!(n-r)!}

where

n represents the total number of items

r represents the number of items being chosen at a time.

In this problem

n=28\\r=4

substitute

C(28,4)=\frac{28!}{4!(28-4)!}\\\\C(28,4)=\frac{28!}{4!(24)!}

simplify

C(28,4)=\frac{(28)(27)(26)(25)(24!)}{4!(24)!}

C(28,4)=\frac{(28)(27)(26)(25)}{(4)(3)(2)(1)}

C(28,4)=20,475\ ways

6 0
3 years ago
What is the value of h(-7)<br><br> h(x) =|3x| -1
Art [367]

Answer:

20

Step-by-step explanation:

h(-7) just means that inside the x value, you replace the x with a -7.

h(-7) = |3x| - 1

h(-7) = | 3(-7)| - 1

h(-7) = | -21 | - 1

NOTE: -21 is inside |x|, those straight lines mean absolute value. No matter what, any negative number would turn into a positive one. And if it’s posititve, then it stays positive.

h(-7) = 21 - 1

h(-7) = 20

6 0
3 years ago
50 point to the person that can answer this:
ale4655 [162]

Answer:

  • B. The constant in the expression is 1/2

Step-by-step explanation:

<u>Given formula for the area of a triangle</u>

  • A = 1/2bh

<u>Statements to confirm</u>

A. The coefficient of is b.

  • False. b is variable, 1/2 is coefficient

B. The constant in the expression is 1/2

  • True

C. There is one term in the expression.

  • False. There are 3 terms, one constant and two variables

D. There is one variable in the expression.

  • False. There are two variables, b and h

<em>Note. </em>

<em>Assumed 1/2 is given in Option B, otherwise all statements are false</em>.

7 0
3 years ago
Find the experimental probability of randomly selecting a marble that is either green or purple. Write your answer in simplest f
EastWind [94]
Green or purple = 10 prob(green or purple) = 10/30 = 1/3
3 0
3 years ago
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