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3 years ago

Which of the following equations have exactly one solution?

Mathematics

1 answer:

Sonja [21]3 years ago

7 0

Answer:

Step-by-step explanation:

Because if you subtract 19x and 18 from each side it wont be 0=0, in other equatins there is infinity solutions

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What is the area of the sector shown

EastWind [94]

Answer:

$D.~ 34.2~cm^2$

Step-by-step explanation:

An arc measure of 20 degrees corresponds to a central angle of 20 degrees.

Area of sector of circle

$area = \dfrac{n}{360^\circ}\pi r^2$

where n = central angle of circle, and r = radius

$area = \dfrac{20^\circ}{360^\circ}\pi (14~cm)^2$

$area = \dfrac{1}{18}(3.14159)(196~cm^2)$

$area = 34.2~cm^2$

5 0

3 years ago

Question 78 find the value of x

gladu [14]

For this case we have that by definition, the volume of a parallelepiped is given by:

$V = l * w * h$

Where:

l: It's the long

w: It is the width

h: It's the height

From the figure we have the following data:

$V = 975 \ ft ^ 3\\h = 9 \ ft\\w = 4ft\\x =?$

We must find the value of the length of the parallelepiped:

$975 = x * 4 * 9\\975 = 36x\\x = \frac {975} {36}\\x = 27.083$

Answer:

$x = 27.1 \ ft$

5 0

2 years ago

Multiply. Express in simplest form. 3/8 x 1/2

CaHeK987 [17]

Answer:

the answer is 3/16.

Step-by-step explanation:

First, let's take a look at the expression itself.

We have to multiply 3/8 and 1/2, which gives us the expression of

3/8*1/2

then, we multiply the numerator by the numerator and get 3, then we multiply the denominator by the other denominator which gets us 16. We put the two parts together and get

3/16

which is not simplifiable. So 3/16 is the simplest answer we can get.

5 0

2 years ago

An object with a starting velocity of 15 m/s accelerates at 3 m/s2. How far does the object travel within 10 seconds?

Anna007 [38]

Answer: 300 m

<u>Step-by-step explanation:</u>

$distance(s)=v_it+\dfrac{1}{2}at^2 \quad \text{where}\ v_i \text{is initial velocity, a is acceleration, t is time}$

$s=(15)(10)+\dfrac{1}{2}(3)(10)^2$

= 150 + 150

= 300

6 0

3 years ago

Slope is -2/3, and (-6,-5) is on the line

UNO [17]

Answer:

You can use the point intercept equation that uses the slope and a coordinate pair to get the equation

Step-by-step explanation:

in photo

8 0

3 years ago