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lions [1.4K]
3 years ago
9

Find total surface area of this cone

Mathematics
1 answer:
yuradex [85]3 years ago
6 0

Answer:

ther is nothing for me to see to solve it

Step-by-step explanation:

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Check if x=-1 is a solution to x3 + 3x^2 = x+3. Which statement do you get?
vredina [299]

Answer:

D. 2 = 2

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right<u> </u>

Step-by-step explanation:

<u>Step 1: Define</u>

x³ + 3x² = x + 3

x = -1

<u>Step 2: Check</u>

  1. Substitute in <em>x</em>:                                                                                                  (-1)³ + 3(-1)² = -1 + 3
  2. Evaluate exponents:                                                                                         -1 + 3(1) = -1 + 3
  3. Multiply:                                                                                                             -1 + 3 = -1 + 3
  4. Add:                                                                                                                   2 = 2
4 0
3 years ago
A side of the triangle has been extended to form an exterior angle of 128°, find the value of x
Tamiku [17]

Answer:

x=52

step by step:

x+128=180

x=180-128

x=52 .

5 0
3 years ago
A family plans a road trip from Fairbanks to Newbury. The distance between the two cities is 240 miles when traveling on the hig
alex41 [277]

Using proportions, it is found that the family will drive 482.8 km on the new route.

<h3>What is a proportion?</h3>

A proportion is a fraction of a total amount, and the measures are related using a rule of three.

In this problem, the family travels a distance of 125% of 240 miles, hence the distance is:

D = 1.25 x 240 = 300 miles.

Since there are are approximately <u>48.28 kilometers in 30 miles</u>, and 300/30 = 10, the distance in kilometers is given by:

D = 48.28 x 10 = 482.8 km.

More can be learned about proportions at brainly.com/question/24372153

#SPJ1

8 0
2 years ago
H(-6) = |2(-6) +1| +1
gavmur [86]

Answer:h=-2

Step-by-step explanation:

Equation:h(-6) = |2(-6) +1| +1

Step 1: Simplify

=-6h=12

Step 2:Divide both sides of the equation by -6

-6h/-6=12/-6

h=-2

3 0
3 years ago
Add the negatives.<br><br><br><br> +4 - 3 - 4 + 2 - 1<br><br> I just dont get it
vfiekz [6]

Answer: -2

Step-by-step explanation:

since there are no multiplication you can simply go from left to right doing simple math. You start from a +4 that would be a positive 4, you subtract -3 so you get +1 then you subtract -4 and the result is -3 (negative 3) so now you are currently working with numbers lower than 0, adding +2 will make it -1 and finally you subtract for -1 and that will make it -2. Hope it's what u needed

4 0
3 years ago
Read 2 more answers
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