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3 years ago

What equation is true for x=-6 and x=2

Mathematics

2 answers:

inna [77]3 years ago

8 0

Answer: $x^{2} +4x-12=0$

Step-by-step explanation:

sowwy if im wrong

kari74 [83]3 years ago

5 0

Answer: X^2 + 4X -12

Step-by-step explanation:

(x+6)(x-2)

=X^2+6X-2X-12

=X^2+4X-12.

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A=63°

bekas [8.4K]

Answer:

B. 7.35 inches

Step-by-step explanation:

In the triangle:

A=63°
c = 7.75 inch
B = 47°

Now we know that:

$\angle A+\angle B+\angle C=180^\circ$ (Sum of angles in a \triangle)\\63^\circ+47^\circ+\angle C=180^\circ\\\angle C=180^\circ-(63^\circ+47^\circ)\\\angle C=70^\circ$

Using the Law of Sines

$\dfrac{a}{\sin A} =\dfrac{c}{\sin C}\\\\\dfrac{a}{\sin 63^\circ} =\dfrac{7.75}{\sin 70^\circ} \\\\a=\dfrac{7.75}{\sin 70^\circ} \times \sin 63^\circ\\\\a=7.35$ inches (to the nearest hundredth of an inch)$

6 0

4 years ago

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What does this graph show<br> inverse <br>direct<br> neither

grin007 [14]

Answer:

i think the given graph is inverse

3 0

2 years ago

Express 1 m as a percentage of 56 mm

hichkok12 [17]

Answer:

Step-by-step explanation:

use your head

7 0

2 years ago

What is the measure in radians for the central angle of a circle whose radius is 9 cm and intercepted arc length is 7.2 cm

Oksana_A [137]

Answer: 0.8 radians

Step-by-step explanation:

To solve this exercise you must apply the formula shown below:

$S=r\theta$

Where S is the arc lenght, r is the radius of the circle and $\theta$ is the central angle in radians.

Solve for the central angle:

$\theta=\frac{S}{r}$

Now, when you susbtitute the value of the arc length and the radius, you obtain that the central angle is:

$\theta=\frac{7.2cm}{9cm}=0.8radians$

4 0

4 years ago

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astronauts use a tool in space that weighs 5 ounces on Earth. How many grams does the tool weigh? Round your answer to the neare

erik [133]

First you need to find how many grams is 1 ounce. 1o z.is 28.35 g, then you need to multiply 28.35 g by 5 which is 141.75. you need to round it to the nearest hundred so it is about 142 grams.

the key here would be

1 oz. = 28.35g or 1 oz. = 28 g

Hope this helps!

6 0

3 years ago

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