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2 years ago

Help please me so confused

Mathematics

2 answers:

Gemiola [76]2 years ago

5 0

Answer:26-19=12

Step-by-step explanation:

V is 26

Mama L [17]2 years ago

3 0

Answer:

The answer is 7 or v=7

Step-by-step explanation:

All you have to do for this is do the inverse. The opposite of subtract 19 is +19. So -12+19=7. If you substitute this into the calculation it makes -12. Hope this helps! PLEASE MARK ME AS BRAINLIEST, WOULD BE APPRECIATED!

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3 years ago

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yuradex [85]

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3 years ago

Simplify the expression.

Doss [256]

Distribute 6 thru the parenthesis=

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3 years ago

Penelope determined the solutions of the quadratic function by completing the square. F(x) = 4x2 8x 1 –1 = 4x2 8x –1 = 4(x2 2x)

Ymorist [56]

By solving the quadratic equation using completing the square method we got that Penelope should have added 4 to both sides instead of adding 1.

<h3>What is quadratic equation ?</h3>

Any equation of the form $ax^2+bx+c=0$ where x is variable and a, b, and c are any real numbers where a ≠ 0 is called quadratic equation .

Given work of Penelope is

$\begin{aligned}&f(x)=4 x^{2}+8 x+1 \\&-1=4 x^{2}+8 x \\&-1=4\left(x^{2}+2 x\right) \\&-1+1=4\left(x^{2}+2 x+1\right) \\&0=4(x+2)^{2} \\&0=(x+2)^{2} \\&0=x+2 \\&-2=x\end{aligned}$

Now we can see that Penelope determined the solutions of the quadratic function by completing the square. so he must have been done as following

$\begin{aligned}&f(x)=4 x^{2}+8 x+1 \\&-1=4 x^{2}+8 x \\&-1=4\left(x^{2}+2 x\right) \\&-1+4=4\left(x^{2}+2 x+1\right) \\&3=4(x+2)^{2} \\&\frac{3}{4} =x+2)^{2} \\&\frac{\pm\sqrt3}{2} =x+2 \\&\frac{-2\pm\sqrt3}{2} =x\end{aligned}$

By solving the quadratic equation using completing the square method we got that Penelope should have added 4 to both sides instead of adding 1.

To learn more about quadratic equations visit : brainly.com/question/1214333

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2 years ago

Round to the place value of the underlined digit 301.587

DerKrebs [107]

round too? hundreds? thousand? ones? where do we round too? i need to know so i can help you :)

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3 years ago

Help please me so confused​

Help please me so confused