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zhenek [66]
3 years ago
8

Find the area and perimeter of that triangle​

Mathematics
1 answer:
aleksandrvk [35]3 years ago
6 0

Step-by-step explanation:

A = \frac{1}{2}(b*h)

A=\frac{1}{2} (14*5)

A=\frac{1}{2} (70)

<em>A = 35</em>

<em></em>P = s+s+s<em></em>

<em></em>P=12+14+6<em></em>

<em>P = 32</em>

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Complete the square f(x) = x^2 + 4x - 8 <br><br><br> PLZ help me ;c
Semenov [28]
Ok, first group x terms
f(x)=(x²+4x)-8
factor out quadratic coefient (no need but that's the step)
f(x)=1(x²+4x)-8
take 1/2 of the linear coefient and square it
4/2=2, (2)²=4
add positive and negative of it insides the parenthasees
f(x)=1(x²+4x+4-4)-8
factor perfect square
f(x)=1((x+2)²-4)-8
distribute
f(x)=1(x+2)²-4-8
f(x)=1(x+2)²-12
and, now if we wanted to find the x intercepts where f(x)=0 then
0=1(x+2)²-12
12=(x+2)²
+/-2√3=x+2
-2+/-2√3=x

x=-2+2√3 or -2-2√3
that is where the x intercept are

and completed square form is
f(x)=(x+2)²-12
6 0
3 years ago
PLZ HELP, GIVING BRAINLIEST!!!!
masya89 [10]

Answer:

C

Step-by-step explanation:

There are three turning points.

The local minimums are (-1,-5) and (1, -5)

The local maximum is (0,-4)

5 0
3 years ago
Will 5x-3y&gt;15 have a solid line
marysya [2.9K]

Answer:

The inequality 5x-3y >15 have a dashed line

Step-by-step explanation:

we have

5x-3y >15

The solution of this inequality is the shaded area below the dashed line

The equation of the dashed line is 5x-3y=15

The slope of the dashed line is positive

The y-intercept of the dashed line is -5 ---> point (0,-5)

The x-intercept of the dashed line is x=3 ----> point (3,0)

Graph the solution

see the attached figure

6 0
3 years ago
NEED HELP ANSWERING ASAP !!
Neporo4naja [7]

Answer:

sorry  can you write it down and take a pic of it

please that is the only way i can answer it

Step-by-step explanation:

8 0
3 years ago
Mary has $10 in savings. She owes her parents $50. She does some chores and her parents pay her $12. She also gets $25 for her b
Viefleur [7K]

Answer:

She does not have enough money to pay back her parents. She needs $3 to be able to do so.

Step-by-step explanation:

If she owes her parents $50 and she has $10 in savings, the her debt to them is only 40$ as 50-10 = 40. When she does chores she eliminates $12 from her debt and now owes them $28 as 40-12 = 28. When she gets $25 for her birthday she sues that to pay them back and 28-25 = $3. Therefore, she still owes them $3.

5 0
3 years ago
Read 2 more answers
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