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vazorg [7]
3 years ago
13

Fill in the blanks to continue the pattern. 1,__, 9, 13, __

Mathematics
1 answer:
Marrrta [24]3 years ago
5 0
You need to add 4 to every number.
1, 5, 9, 13, 17
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The equation x^2−8x−5=0 can be transformed into the equation (x−p)^2=q, where p and q are real numbers. What is the value of q?
Setler79 [48]

Answer:

x = 5

  or

x = 3

Step-by-step explanation:

The first term is,  x2  its coefficient is  1 .

The middle term is,  -8x  its coefficient is  -8 .

The last term, "the constant", is  +15

Step-1 : Multiply the coefficient of the first term by the constant   1 • 15 = 15

Step-2 : Find two factors of  15  whose sum equals the coefficient of the middle term, which is   -8 .

     -15    +    -1    =    -16

     -5    +    -3    =    -8

3 0
2 years ago
A scientist mixes water (containing no salt) with a solution that contains 35% salt. She wants to obtain 105 ounces of a mixture
Naya [18.7K]

Answer:

60 oz of water to add

45 oz of 35% salt solution should be used

Step-by-step explanation:

Let x = amt no. ounces in the first solution

and  105 - x = amt no. of ounces in the second solution

Ist solution contains 0% salt

2nd solution contains .35(105 - x) salt

.15(105= amt of salt in mix

So.

amt of salt in 1st solution + amt of salt in 2nd solution = amt of salt in the mix

0 + .35(105 - x) = .15(105)

Let's get rid of the fractions by multipying thru the equation by 100

35(105 - x) = 15(105)

3675 - 35x = 1575

-35x = -2100

x = 60 oz of water to add

105 - 60 = 45 oz of 35% salt solution should be used

7 0
2 years ago
Translate the given statement into propositional logic using proposition provided :
olya-2409 [2.1K]

Answer: m ⇒ e ∨ p

Step-by-step explanation:

First look at the statement and locate the connectives ( these are words which connect sentences such as: and, or, implies, is equivalent and not.) Each of these connectives have a symbol/ variable.  

  • In this case the connectives are "only if" and "or" these are important because we will not attach propositional variables to them, where:

⇒ = " only if"

∨ = "or"

  • Convert the phrases into variables where:

m = " You can see the movie"

e = "You are over 18 years old"

p = " you have the permission of a parent"

  • Construct the statement sequentially.

You can see the movie (m) only if (⇒) you are over 18 years old (e) or (∨) you have the permission of a parent (p)

  • Remove the phrases and you'll have your answer:

m ⇒ e ∨ p

6 0
2 years ago
How can you use equations to solve problems involving area and volume?
antiseptic1488 [7]

Answer:

Step-by-step explanation:

I think you're asking how we use formulas to find areas and volumes.

There's no one area formula; the formula we use to calculate an area depends upon the shape.

For example, the area of a square of side length s is A = s^2.

The area of a triangle with base b and height h is (1/2)*b*h.

Similarly, the choice of formula for the purpose of calculating voume depends upon the shape of the 3-dimensional object.

For example, the volume of a cube with side length s is V = s^3.

The volume of a cylinder with radius r and height h is V = (1/3)πr^2*h.

8 0
3 years ago
5.
Veronika [31]

Answer:

40 cents.

Step-by-step explanation:

If he has enough money to buy 6 markers ate $3 for 6 then he must have 30/6 * 3

= $15.

So 30 pencils cost 15 - 3 = $12.

Each pencil costs 12/30

= $0.4

= 40 cents.

4 0
3 years ago
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