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raketka [301]
2 years ago
9

Ig nobody uses comments anymore :/

Mathematics
1 answer:
marta [7]2 years ago
8 0

Answer:

19

Step-by-step explanation:

9+10 is 19.

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If BC = 6.5, CD = 7.8, and AD = 12.2, find AB to the nearest tenth.
Sladkaya [172]
This can be solved using the angle bisector theorem. Note that line segment AD is the angle bisector of triangle DAB from angle DAB. Therefore, we know that the ratios \frac{\text{AD}}{\text{CD}} and \frac{\text{AB}}{\text{CB}} are equal. Solving, we get \frac{\text{12.2}}{\text{7.8}}=\frac{\text{AB}}{\text{6.5}}. Cross multiplying, we get 79.3 = 7.8x, and solving this equation we get x = 10.1666... \approx 10.2. 10.2 is your answer.
6 0
3 years ago
Solve the equation<br><img src="https://tex.z-dn.net/?f=%20%5Csqrt%7Bx%20-%206%7D%20%20%2B%202%20%3D%206" id="TexFormula1" title
tensa zangetsu [6.8K]

Explanation:

First you had to square from both sides of equation form.

(\sqrt{x-6+2})^2=6^2

Then you expanded form.

(\sqrt{x-6+2})^2=x-4

x-4=36

6^2=6*6=36

Solve by equation form.

x-4=36

Add by four from both sides of equation form.

x-4+4=36+4

Simplify.

x=40

Verified solutions.

x=40 \boxed{TRUE}

Final answer: \boxed{x=40}

Hope this helps!

And thank you for posting your question at here on brainly, and have a great day.

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7 0
3 years ago
Abner wants to create a shopping budget where he spends less than $80 per month on clothes. He also wants to spend at least thre
strojnjashka [21]

Answer:

D) Abner can spend $60 per month on school clothes and $20 per month on gym clothes and stay within his budget.

Step-by-step explanation:

In the problem it states that Abner will spend 3 times more on (s)school clothes than (g) gym clothes.

So it would appear as s ≥ 3g.

If we plug in $60 as s (school clothes) and $20 as g (gym clothes), the statement is true.

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60 ≥ 60. These numbers make the linear system true.

If you have trouble with this, an easy way to find this answer is simply creating the linear system that represents the problem, (he will buy 3 times more school clothes than gym clothes) s ≥  3g and plug in each variable from the answer choices until you find the variables that make the linear system true.


6 0
3 years ago
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In a coordinate plane, what is the distance between (4,-8) and (4, -12)?
Marina86 [1]
Since x co-ordinates are constant, answer has to be difference in y co ordinates therefore the answer is 4
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3 years ago
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What does h equal in the equation S=2πr2+2πrh?
Troyanec [42]

A

Step-by-step explanation:First, subtract

2

π

r

2

from each side of the equation to isolate the

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term:

S

−

2

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=

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h

+

2

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−

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S

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=

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h

+

0

S

−

2

π

r

2

=

2

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r

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Now, divide each side of the equation by

2

π

r

to solve for

h

:

S

−

2

π

r

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2

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r

=

2

π

r

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2

π

r

S

−

2

π

r

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2

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h

2

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r

S

−

2

π

r

2

2

π

r

=

h

h

=

S

−

2

π

r

2

2

π

r

Or

h

=

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r

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