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nata0808 [166]
2 years ago
5

WILL MAKE BRAINLYEST

Mathematics
2 answers:
Valentin [98]2 years ago
8 0

Answer:

none

Step-by-step explanation:

3−12+223−56=158

216−216=0

56+216=272

216+216=432

216−56=160

Brainliest?

Reptile [31]2 years ago
7 0
None of the answer choices are correct
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What is the area of triangle DEF?
FrozenT [24]

Answer:

A=2\sqrt{14}\ units^2

Step-by-step explanation:

we know that

Heron's Formula is a method for calculating the area of a triangle when you know the lengths of all three sides.  

so

A=\sqrt{s(s-a)(s-b)(s-c)}

where

a, b and c are the length sides of triangle

s is the semi-perimeter of triangle

we have

a=5\ units,b=6\ units,c=3\ units

<em>Find the semi-perimeter s </em>

s=\frac{5+6+3}{2}=7\ units

Find the area of triangle

A=\sqrt{7(7-5)(7-6)(7-3)}

A=\sqrt{7(2)(1)(4)}

A=\sqrt{56}\ units^2

simplify

A=2\sqrt{14}\ units^2

3 0
3 years ago
Another teacher has a monthly salary of $2000 She spends $943 per month on rent Her monthly salary then increases by 15% What pe
Aleks04 [339]

Answer:

47.15%

Step-by-step explanation:

Getting a raise of 15% would increase the teacher's salary by 300. 943 of 2300 is 47.15%.

5 0
2 years ago
Shanika makes 2,800 milliliter so of chicken soup for a dinner party.she needs 3.5 liters. how many more milliliter so does shan
WINSTONCH [101]
1L=1000mL
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If she needs 3.5 L, she currently has 2.8L,
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5 0
3 years ago
D=h+9 The variable H represents the number of hours worked, and the variable d represents the amount of dough prepared how many
Marta_Voda [28]

Answer:

  12 hours

Step-by-step explanation:

If we assume that the units of D are kg, then we can put the given number into the equation and solve.

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8 0
3 years ago
6th grade math! Help me if you can! C;
xxMikexx [17]

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    90 Miles                                 45 Miles                  

     2 Hours                                   1 Hour    

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<em><u>Give Brainliest If You Please</u></em>

5 0
3 years ago
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