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Maksim231197 [3]
3 years ago
12

Sixteen is seven plus three times a number find the number

Mathematics
1 answer:
Mama L [17]3 years ago
4 0

Answer: x=3

Step-by-step explanation:

16 = 7 + 3x

9 = 3x

3 = x

:0

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What is the answer to -3x+2=-7
ycow [4]

Answer:

x=3

Step-by-step explanation:

-3x=-7-2=-9

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4 0
3 years ago
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Solve the compound inequality 4x – 7 > 5 or 5x + 4 ≤ –6
bija089 [108]

Answer:

inequality form: x \leq -2 or x > 3

interval notation form: (-∞,-2] ∪ (3,∞)

Step-by-step explanation:

I attached a picture that shows all the work. You begin by isolating then solving for x on both sides. Then form a solution using the information found out about x. For example, you can combine the found inequalities for x to solve that x must be GREATER than 3 while being LESS than -2. Using that you can form an line and make a line. Remember, when writing in interval notation form you always begin from the left to the right (in reference) to the number line.

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Simplify negative 5 minus the square root of negative 44 negative 5 minus 4 times the square root of 11 i negative 5 minus 4 i t
Anika [276]

Answer:

-5-\sqrt{-44}=-5-2\sqrt{11}i

Step-by-step explanation:

We want to simplify:

-5-\sqrt{-44}

We rewrite the expression under the radical sign to obtain:

-5-\sqrt{4\times11\times -1}

We split the expression under the radical sign to get:

-5-\sqrt{4} \times \sqrt{11} \times \sqrt{-1}

Recall that:

\sqrt{-1}=i

This implies that:

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Therefore -5-\sqrt{-44}=-5-2\sqrt{11}i

6 0
3 years ago
Find the volume of a cylinder with a diameter of 10 inches and a height of 20 inches. Use 3.14 for π.
Snowcat [4.5K]
<span>Lets find the volume of a cylinder with a diameter D=10 inches and lenght L= 20 inches. First we need to notice that the diameter is twice the size of the radius: D=2r. Then we write the equation for the volume of the cylinder. it is the base times the height: V=pi*r^2 * L. Now we input the nubmers in the equation: V=3.14*(D/2)^2 * L where r=D/2=5 inches and after calculating we get: V=1570 inches^3</span>
6 0
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If I have $1,050 dollars, and I want to buy something 6 times for $45 dollars, how much times can I buy it until I run out of mo
joja [24]

Answer:

140

Step-by-step explanation:

here,

You have 1050

now

$1050(45×6)

=140 items

8 0
2 years ago
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