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Julli [10]
3 years ago
7

absmiddle" class="latex-formula">
Mathematics
2 answers:
Amiraneli [1.4K]3 years ago
7 0

Answer:

x= 7

x= 4

Step-by-step explanation:

Move terms to the left side

2−11=−28

x^{2}-11x=-28x2−11x=−28

2−11−(−28)=0

Use the sum-product pattern

Identify a, b, and c in your equation and then find two numbers that when multiplied together equal c and when added together equal b.

2−11+28=0

Factor

Write your equation in factored form

(−7)(−4)=0

Create two separate equations

Set each factor equal to zero

−7=0

x-7=0x−7=0

−4=0

Solve

Rearrange and isolate the variable to find each solution

=7

x=7x=7

=4

Solution

=7=4

amid [387]3 years ago
5 0

Answer:

x = 4, 7

Step-by-step explanation:

We start off with the equation x^{2} -11x = -28. from there, we can add 28 to both sides to get x^{2} -11x+28 = 0. From there, we have to factor the equation. In order to factor it, we have to ask ourselves what 2 numbers would add up to -11 and multiply to 28? In this case, the answer would be -7 and -4. So, we get the equation (x-7)(x-4) = 0. Then, we set each part of the equation = 0 to get the anwsers x = 4 and 7. Hope this helps!

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Answer:

She will still need about 450$

Step-by-step explanation:

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2 years ago
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Answer:

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Step-by-step explanation:

5 0
3 years ago
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7 0
3 years ago
Can y’all help please
IRISSAK [1]

Answer:

x=square root 63. Basically the radical 63.

Step-by-step explanation:

So in the first triangle with the 3 in it. You have root 3 and use the a^2 +b^2=c^2 formula. So 3^2 + 3^2= x^2 and then when you solve you get radical 18^2 which is equal to radical 18 or square root 18. Then we go to the bigger triangle and we do the same formula but this time we have the c value which is 9. So we do radical 18^2 + x^2 = 9^2 and then solve that and minus 18 from the 81 since the radical goes off the 18 and you get square root63.

Sorry i couldn't use the signs. Sorry If I'm wrong Hope this helps!.

4 0
3 years ago
Given Δ XYZ ≅ Δ EGF, find the measurements of the unknown sides and angles.
mamaluj [8]
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3 years ago
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