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3 years ago

If (x + 1)(x - 3) = 12, then which of the following statements is true?

Mathematics

1 answer:

Alexxandr [17]3 years ago

4 0

X = 5. so you would just plug that in to check your answer

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Consider the triangle. Which shows the order of the angles from smallest to largest? angle A, angle B, angle C angle B, angle A,

Katyanochek1 [597]

Answer:

angle B, angle A, angle C

Step-by-step explanation:

The shortest side length will be opposite the smallest angle, and the longest side length will be opposite the largest angle.

When the triangle is drawn and labeled, we see that AB is opposite angle C; BC is opposite angle A; and CA is opposite angle B.

Since the smallest side is AC, this means the smallest angle is angle B.

Since the middle length side is BC, the middle sized angle is A.

Since the longest side is AB, the largest angle is C.

This means the order from smallest to largest is B, A, C.

6 0

3 years ago

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A boat traveled 54 km with the stream and 42 km against the stream spending a total of as much time as it would spend while trav

SCORPION-xisa [38]

Answer:

18 miles / hour

4 0

3 years ago

What is the equation of the line that passes through the point (4, 3) and is perpendicular to the line x + y = 4?

zimovet [89]

ANSWER

$y - x = - 1$

EXPLANATION

The required equation passes through:

(4,3) and is perpendicular to x+y=4.

Rewrite the given equation in slope-intercept form:

$y = - x + 4$

The slope of this line is -1.

The slope of the required line is perpendicular to this line, so we find the negative reciprocal of this slope.

$m= - \frac{1}{ - 1} = 1$

The equation of the line can be found using:

$y - y_1 = m(x - x_1)$

We substitute the slope and point to obtain:

$y - 3 = 1(x - 4)$

We simplify to get:

$y - 3 = x - 4$

$y - x = - 4 + 3$

The required equation is

$y - x = - 1$

5 0

3 years ago

Suppose we want to form five digit numbers using the set of digits 0 1 2 3

OleMash [197]

1230 1203 1302 1320 1032 1023 2130 2103 2301 2310 2032 2023 3210 etc

8 0

3 years ago

Write the expression as either the sine, cosine, or tangent of a single angle.

olya-2409 [2.1K]

There exists a trigonometric identity which states that,
sin (A - B) = sin A cos B - cos A sin B
This is very similar to the given expression with A equal to 57° and B equal to 13°. The simplified form of the angle is,
sin (57° - 13°) = sin 44°

5 0

3 years ago

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