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JulsSmile [24]
3 years ago
8

-3x-4=-13 solve inequality plz show work!

Mathematics
2 answers:
stellarik [79]3 years ago
8 0
Hey there! :) 

-3x - 4 = -13

We're essentially just trying to isolate x. So, we need to get x onto its own side of the equal sign! We can do this by adding 4 to both sides.

-3x = -13 + 4

Simplify.

-3x = -9

Divide both sides by -3.

x = 3

~Hope I helped!~
Lady bird [3.3K]3 years ago
6 0
Hello Again!

What you want to do first is add 4 to -4 and to -13. After doing so, you'll equation will look a little something like this...

-3x=9

You'll then want to divide both -3 and 9 by -3. After doing so, the equation will look like this...

x=-3

Your answer is x=-3

I hope this helps


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The ratio of the measures of the three angles in a triangle is 14:5:11. Find the value of x
Lilit [14]

Answer:

The three angles are 84º, 30º, and 66º. You multiply the ratio 14:5:11 by 6º.

Step-by-step explanation:

The sum of a triangle's interior angles is 180º. From the information we know:

  • 14xº+5xº+11xº=180º
  • Combine like terms, 30xº=180º
  • Divide, xº=6º

Now we can say that the three angles are 14(6)=84º, 5(6)=30º, 11(6)=66º.

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shtirl [24]
The reduced fee for each additional round played is $3
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4 years ago
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3 years ago
Calculate the area of triangle ABC with altitude, CD, given
defon

Answer:

37.5 square units

Step-by-step explanation:

Given:

A(-6,-4), B(6,5), C(-1,6), and D(2, 2), where CD is the altitude if ∆ABC

Required:

Area of ∆ABC

SOLUTION:

Area of a ∆ABC =½*AB*CD

✍️AB = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2} = \sqrt{6 -(-6))^2 + (5 -(-4))^2

AB = \sqrt{12^2 + 9^2}

AB = \sqrt{144 + 81}

AB = \sqrt{225} = 15

✍️CD = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2} = \sqrt{2 -(-1))^2 + (2 - 6)^2

CD = \sqrt{(3)^2 + (-4)^2}

CD = \sqrt{9 + 16}

CD = \sqrt{25} = 5

✍️Area of a ∆ABC =½*AB*CD

= ½*15*5

✅ Area = 37.5 square units

5 0
3 years ago
Find measurement of angles. Help me out pls :'
Reika [66]

Answer:

33

Step-by-step explanation:

3x-1+x-1=134

4x-2=134

4x=136

x=34

34-1=33

6 0
3 years ago
Read 2 more answers
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