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Archy [21]
3 years ago
7

-42 < j(7) Solving one step inequalities

Mathematics
1 answer:
kkurt [141]3 years ago
4 0

Step-by-step explanation:

step 1. -42 < 7j

step 2. j > -6 (divide both sides by 7)

step 3. notice that I also put the variable first.

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What is the length of ac?<br> Someone please answer this fast!
labwork [276]

Answer:

use the laws of sines

Step-by-step explanation:

is you use those you literally good to go .

8 0
3 years ago
Find the length of the third side. If necessary, round to the nearest tenth.914
Zina [86]

The given trinagle is a right angle triangle. let the missing side be x. To find x, we would apply the pythagorean theorem which is expressed as

hypotenuse^2 = one leg^2 + other leg^2

From the triangle,

hypotenuse = 14

one leg = 9

other leg = x

Thus, we have

\begin{gathered} 14^2=9^2+x^2 \\ 196=81+x^2 \\ x^2\text{ = 196 - 81 = 115} \\ x\text{ = }\sqrt[]{115} \\ x\text{ = 10.72} \end{gathered}

To the nearest tenth, the length of the third side is 10.7

4 0
1 year ago
Roberto got $30 for his birthday. He decides to save that
shutvik [7]

After 10 weeks, the boys will have same amount in savings.

Step-by-step explanation:

Given,

Roberto already have $30.

Amount saved each week = $5

Let,

x be the number of weeks.

R(x) = 30+5x

Amount saved by Jack each week = $8

J(x) = 8x

For same amount, the functions will be equal.

R(x) = J(x)

30+5x=8x\\30=8x-5x\\30=3x\\3x=30

Dividing both sides by 3

\frac{3x}{3}=\frac{30}{3}\\x=10

After 10 weeks, the boys will have same amount in savings.

Keywords: functions, division

Learn more about functions at:

  • brainly.com/question/1499598
  • brainly.com/question/1502731

#LearnwithBrainly

7 0
3 years ago
Solve for r. <br><br> √2/3r + 1 = 23
Keith_Richards [23]

Answer:

2nd option

Step-by-step explanation:

\frac{\sqrt{2} }{3} r + 1 = 23 ( subtract 1 from both sides )

\frac{\sqrt{2} }{3} r = 22 ( multiply both sides by 3 to clear the fraction )

\sqrt{2} r = 66 ( divide both sides by \sqrt{2} )

r = \frac{66}{\sqrt{2} } × \frac{\sqrt{2} }{\sqrt{2} } ( rationalising the denominator )

r = \frac{66\sqrt{2} }{2} = 33\sqrt{2}

7 0
2 years ago
Read 2 more answers
If the variance of the data values in a population is 196, what is the standard deviation of the data values?
Natali [406]
The standard deviation is the square root of the variance

so if the variance is 196, then the standard deviation is the sqrt of 196, which is 14
4 0
3 years ago
Read 2 more answers
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