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3 years ago

PLEASEEEE HELP MEEEE

Mathematics

1 answer:

agasfer [191]3 years ago

4 0

Answer:

(0.5,0) , (-3,0) ,and (0,-1.5)

Step-by-step explanation:

Just look where the points touch the x- and y-axis.

It touches twice on the x- and once on the y-axis.

Hope that helps!

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A contractor buys 16 yd of nylon carpet and 22 yd of wool carpet for $1902. A second purchase, at the same prices, includes 20 y

Sergio039 [100]

Answer:

$53

Step-by-step explanation:

Given that, two type of clothes nylon and wool carpet.

Let the price of one yard of nylon carpet = $ $x$

Let the price of one yard of wool carpet = $ $y$

Price for 16 yd of nylon carpet and 22 yd of wool carpet = $1902

Price for 20 yd of nylon carpet and 21 yd of wool carpet = $2033

Writing equations as per given statement:

$16x+22y=1902 ...... (1)\\20x+21y=2033 ...... (2)$

Here, we have to find the value of $y$ .

By equation (1), we get:

$16x = 1902 - 22y \\\Rightarrow x = \dfrac{1}{16}(1902-22y) ..... (3)$

Putting the value from equation (3) to equation (2):

$20 (\dfrac{1}{16}(1902-22y) ) + 21y =2033\\\Rightarrow 9510-110y + 84y = 8132\\\Rightarrow 26y=1378\\\Rightarrow \bold{y = 53}$

Therefore, the cost per yard for the wool carpet is $<em>53.</em>

7 0

3 years ago

When angles are complementary, the sum of their measures is 90 degrees.Two complementary angles have measures of 2x-10 degrees a

Mariana [72]

Complementary angles are those angles whose sum is 90 degree.

The measurement of two complementary angles are

$(2x-10), (3x-10)$

There sum have to be 90 degree. That is

$2x-10+3x-10 = 90$

Combining like terms ,

$5x - 20 = 90$

Moving 20 to right side

$5x=110$

Dividing both sides by 5

$x =22$

So the measurement of the angles are

$2*22-10 , 3*22-10 \\
34 degree, 56 degree$

6 0

4 years ago

Solve: log4(7t + 2) = 2

IRISSAK [1]

Answer:

The required value of t is equal to 2

Step-by-step explanation:

We need to solve the following expression :

$\log_4(7t+2)=2$

Now, using the base rule :

$2=\log_4(4^2)\\\\\implies 2= \log_4(16)$

Now, using this value of 2

$\log_4(7t+2)=2\\\\\implies\log_4(7t+2)=\log_4(16)\\\\\implies 7t+2=16\\\\\implies 7t=16-2\\\\\implies 7t=14\\\\\implies t = 2$

Hence, The required value of t is equal to 2

3 0

3 years ago

What is the amplitude of the sinusoidal function?

dem82 [27]

Answer:

The amplitude of the sinusoidal function is 3

Step-by-step explanation:

$Amplitude=\frac{Maximum+Minimum}{2}\\\\Amplitude=\frac{1+(-7)}{2}\\ \\Amplitude=\frac{1-7}{2}\\\\Amplitude=\frac{-6}{2}\\ \\Amplitude=-3=3$

7 0

3 years ago

Adding and subtracting functions<br>g(x) = 4x + 5 f (x) = −3x^2 − 3x Find g(x) + f (x)

lesantik [10]

Answer: -3x^2 + x +5

Step-by-step explanation:

4x+5 + -3x^2 - 3x ----> -3x^2 + x +5

7 0

4 years ago