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PtichkaEL [24]
3 years ago
12

The pennant below is in the shape of an isosceles triangle. Determine and state the length of the base.

Mathematics
1 answer:
VladimirAG [237]3 years ago
8 0

Answer:

C. 10

Step-by-step explanation:

we know that

The height of an isosceles triangle divide the triangle into two equal right triangles.

so

Applying the Pythagorean Theorem at one triangle

13^2=(x+7)^2+(2x/2)^2

solve for x

169=x^2+14x+49+x^2

2x^2+14x-120=0

solve the quadratic equation by graphing

using a graphing tool

The solution is x=5

see the attached figure

therefore

The length of the base is

2(5)=10\ units

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Answer:

0.8

Step-by-step explanation:

We begin with the expression: 0.5+(-\frac{3}{4} )+0.25-(-\frac{4}{5} )

First, we need to convert the fractions into decimals to make this easier.

-\frac{3}{4}=-0.75 and -\frac{4}{5} =-0.8

Once we have this, we can simplify it

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1. 3x + 12 = 8x - 18
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Answer:

  1. given
  2. addition property of equality
  3. addition property of equality
  4. division property of equality
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Step-by-step explanation:

In step 2, -3x was added to both sides in accordance with the addition property of equality.

The same property lets you add 18 to both sides, as in step 3.

The division property of equality lets you divide both sides of the equation by 5. (Or, the multiplication property lets you multiply by 1/5.)

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3 years ago
ASAP NEEEEED HELLLLLLLLLP PLZZZ
nadya68 [22]
T = 5 a
i = 4% aa
j = 1200
c = ...
j = cit/100
c = 100j / it
c = 100*1200 / 4*5
c = 120000 / 20
c = 12000/2
c = 6000

montante

M = c+j
M = 6000+1200
M = 7200
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Answer: 50+10x

Answer: 25+10x

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2 years ago
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<em>so </em>

<em>circumference </em><em>=</em><em> </em><em>2</em><em> </em><em>π</em><em> </em><em>r</em>

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