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Nataly_w [17]
3 years ago
5

If x2 = 40, what is the value of x? (3 points) 1) +80 2) +20 3) ανθο 4) 1940

Mathematics
1 answer:
Liula [17]3 years ago
3 0

Answer:

(2) 20

Explanation:

x2 = 40

Divide Both Sides By 2

x2 / 2 = 40 / 2

x = 20

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Without using the formula, work out the gradient of the graph shown.
Harman [31]

Answer:

1/3

Step-by-step explanation:

3 0
1 year ago
Find the values of x when y=1
kirill [66]

Answer:

x=1+\sqrt{5}, 1-\sqrt{5}

Step-by-step explanation:

  1. x^{2} -2x-4=0
  2. (x-1)^{2} -1-4=0
  3. (x-1)^{2} -5=0
  4. (x-1)^{2} =5
  5. x-1=\sqrt{5} ,-\sqrt{5}
  6. x=1+\sqrt{5} , 1-\sqrt{5}

<u>FINAL ANSWER</u>

x=1+\sqrt{5} , 1-\sqrt{5}

<u><em>In Decimal Form (Rounded to 3 significant figures)</em></u>

<em>x≈-1.24, 3.24</em>

6 0
3 years ago
Read 2 more answers
ANYONE KNOWS THAT ANSWER FOR THIS PLEAS EHELP ME ASAP
Tasya [4]

Answer:

triangular prism

Step-by-step explanation:

Shape 1 attached is a triangular prism it has the same name and same net but is not identical as its slightly longer. The top side has 5 edges and its base has 4 edges

Has the same Faces: 5

Has the same Edges: 9

Has the same Vertices: 6

Shape 2 attached, is called a square based pyramid

It differs as its top side has 4 edges and its base has 4 edges where the base is the only common side and slope as the other one.

Faces: 5

Edges: 8

Vertices: 5

3 0
2 years ago
In a recent survey, 40 percent indicated chocolate was their favorite flavor of ice cream. Suppose we select a sample of twelve
worty [1.4K]

Answer:

4 people name chocolate

Step-by-step explanation:

Let's first understand the given information.

The survey shows that 40 percent of a finite number of people name chocolate as their favorite flavor of ice cream. Because the survey is reporting a percentage, then 40% means that from 100 people 40 people name chocolate, while the others name a different type of flavor.

Dividing the total of people (100) by the ones who name chocolate (40) then we have:

100/40 = 2.5

Through the above equation we are actually expressing the following:

Total people = 2.5 * (people who name chocolate flavor)

Using this equation if we have now 12 people:

12 = 2.5 * (people who name chocolate flavor)

12/2.5 = (people who name chocolate flavor)

4.8 = people who chose chocolate flavor

Because we can't have 0.8 of a person, then if we have a sample of 12 people, we will expect that 4 of them name chocolate.

5 0
3 years ago
necklace maker Nancy uses 32 beads for each necklace she makes. her latest shipment of beads had 1,799 beads in it. how many nec
lions [1.4K]
The amount of necklaces she can make is 56

To work this out, you would divide 1799 by 32, to get 56 necklaces with 7 beads left over.

Hope this helps!
7 0
3 years ago
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