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3 years ago

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Mathematics

1 answer:

MissTica3 years ago

7 0

Answer:

$21.80

Step-by-step explanation:

50% of 38 is 19. 10% of 38 is 3.8. Add these together to get 21.8. This equates to $21.80.

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Ella is making 3 batches of banana milkshakes. She needs

AlexFokin [52]

21 times because you need 7/4=1 gallon and 3/4 just for one and 7x3 =21 so need 21/4

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3 years ago

The measure of angle θ is 3pi/2 . The measure of its reference angle is /, and tan θ is .

Sphinxa [80]

Answer:

Reference angle: $\frac{\pi}{2}$

$tan(\theta)=tan(\frac{3\pi}{2})$ is not defined.

Step-by-step explanation:

The angle $\theta$ goes from the positive x-axis to the negative y-axis.

Therefore the reference angle can be calculated as following:

$\frac{3\pi}{2}-\pi=\frac{\pi}{2}$

We know that $tan(\theta)$ is:

$tan(\theta)=\frac{sin(\theta)}{cos(\theta)}$

If $\theta=\frac{3\pi}{2}$ then $cos(\frac{3\pi}{2})=0$ , therefore $tan(\frac{3\pi}{2})$ is not defined, because the division by 0 is not defined.

8 0

3 years ago

A quadrilateral is shown. One pair of opposite sides have lengths of 10 inches and (x + 2) inches. The other pair of opposite si

ziro4ka [17]

Step-by-step explanation:

Yes, one pair of opposite sides could measure 10 inches. and the other pair could measure 13 inches

3 0

3 years ago

Read 2 more answers

an ice cream cone has a height of 16 cm and a diameter of 4 centimeters what is the volume of ice cream that can be contained wi

Iteru [2.4K]

Answer:

67.014

Step-by-step explanation:

V = π r^2 (h/3)

(Volume equals pi r squared, h over 3)

Diameter is 4, so the radius is half of that = 2

Plug in the numbers

V = π (2^2) (16/3)

V = π (4) (5.333)

V = 3.14 x 4 = 12.566

V = 12.566 x 5.333

V = 67.014

8 0

3 years ago

5x+4y=16 -2x-4y=-4 <br>Show your step by step process.<br>Solve the system of linear equations.

slava [35]

Answer:

x=1 and y= 5 $\frac{1}{4}$

Step-by-step explanation:

To solve this, lets take the first equation and find the x value.

Because it is ordered in standard form, we need to convert to slope-intercept form, and isolate the y.

5x+4y=16

-5x -5x

4y=-5x+16

÷4 ÷4 ÷4

y= $\frac{-5}{4}$ +4

y=-1 $\frac{1}{4}$ +4

y= 5 $\frac{1}{4}$

Now that we have the y value, we can use this to find the x value by inserting it into either equation, since they both have y values in them. Going with the first one again, lets try it:

5x+4( $\frac{-5}{4}$ +4)=16

5x-5+16=16

5x+11=16

-11 -11

5x=5

÷5 ÷5

x=1 and y= 5 $\frac{1}{4}$

7 0

3 years ago