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3 years ago

Find the solutions of this quadratic. f(x)=(x-8)(x+4)

Mathematics

1 answer:

Studentka2010 [4]3 years ago

3 0

$x1 = 8 \\ x2 = - 4$

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Based on the given information, what is the measure of the missing length, c?

salantis [7]

Answer:

$c=5\ units$

Step-by-step explanation:

we know that

In the right triangle ABC of the figure

Applying the Pythagoras Theorem

$AC^{2}=AB^{2}+BC^{2}$

substitute the given values

$13^{2}=c^{2}+12^{2}$

Solve for c

$169=c^{2}+144$

$c^{2}=169-144$

$c^{2}=25$

$c=5\ units$

4 0

3 years ago

What is TU in circle D? 5.1 3.4 ا O 3.4 O 3.8 O 7.6 O 5.1

Debora [2.8K]

Answer:

answer-3.4

Step-by-step explanation:

2022 edge

8 0

2 years ago

Conti. 7-10 thanks a lot! unhelpful answers will be deleted.

Marysya12 [62]

Answers:

10. b. $\displaystyle 13$

9. b. $\displaystyle 20$

8. a. $\displaystyle 33$

7. a. $\displaystyle 25°$

Step-by-step explanations:

10. Both segments are considered congruent, so turn both expressions into an equation:

$\displaystyle 3x - 5 = x + 7 \hookrightarrow \frac{-12}{-2} = \frac{-2x}{-2} \\ \\ 6 = x$

Plug this back into the equation to get $\displaystyle 13$ on both sides.

9. All edges in a square obtain congruent right angles and edges, so set $\displaystyle 45$ equivalent to the given expression:

$\displaystyle 45 = 2x + 5 \hookrightarrow \frac{40}{2} = \frac{2x}{2} \\ \\ \boxed{20 = x}$

8. Both angles are considered supplementary, so turn both expressions into an equation and set it to one hundred eighty degrees:

$\displaystyle 180 = (4x - 15)° + (x + 30)° \hookrightarrow 180° = (15 + 5x)° \hookrightarrow \frac{165}{5} = \frac{5x}{5} \\ \\ \boxed{33 = x}$

7. In this rectangle, segment EO is a segment bisectour, making these angles Complementary Angles. Therefore, set an equation up to find its complement:

$\displaystyle 90° = 65° + m\angle{VOE} \\ \\ \boxed{25° = m\angle{VOE}}$

I am joyous to assist you at any time.

3 0

2 years ago

y = A system of equations. y equals StartFraction one-half EndFraction x minus 6. x equals negative 4.x – 6 x = –4 What is the s

tatiyna

Answer: (-4,-8)

Step-by-step explanation: I got a 100% on the quiz

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3 years ago

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Answer:

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