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Kryger [21]
2 years ago
11

Evaluate the expression 2x-(4y-3)+5xz, when x=-3,y=2, and z=-1

Mathematics
1 answer:
AVprozaik [17]2 years ago
3 0

Answer: 4

Step-by-step explanation:

2x - (4y - 3) + 5xz

Let  x = -3, y = 2, and z = ‐1.

2(-3) -( 4(2) -3) +5(-3)(-1)

-6 - (8-3) +15

-6 - 5 +15

-11 +15

4

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Pls help thank you so much
butalik [34]
49/4 yd^3 is the volume


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3 years ago
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Triangle QRS is transformed as shown on the graph. Which rule describes the transformation?
hjlf

Answer: Ro, 270 degrees

Step-by-step explanation:

When doing rotational transformation, you always rotate counter-clockwise. In this case, the triangle on the top right is the original figure, and the triangle on the bottom left is the image. You can pick any point on the original triangle and compare it to its corresponding point on the image to figure out how it has been transformed.

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3 years ago
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Today is Mai's birthday. She is 9 years old. How old is Mai in months?
Alekssandra [29.7K]

Answer:

108 months old.

Step-by-step explanation:

Year = 12 months

9 Years = 9 x 12 months

9 years = 108 months.

5 0
3 years ago
What are the values of s,v,w,x,y,z?​
Katarina [22]

Answer: s, v, w, & x = 13      y = 20        z = 20 + 13√3

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

First, you need to understand the side lengths of each special triangle in the drawing.

A 45°- 45°- 90° triangle has corresponding sides of a - a - a√2

A 30°- 60°- 90° triangle has corresponding sides of b - b√3 - 2b

The hypotenuse of the 45-45-90 triangle is 13√2, so its legs are 13.

So A F = 13 → s = 13 and w = 13

     FB = 13 → x = 13

     EC = 13 → v = 13

Since the x-value of C is 20, then the x-value of E is also 20 → y = 20

ED is opposite of the 60° angle of the 30-60-90 triangle so ED is EC√3.  Since EC = 13, then ED = 13√3.

AE + ED = AD

20 + 13√3 = AD → z = 20 + 13√3

6 0
4 years ago
For his phone service, Dan pays a monthly fee of $23, and he pays an additional $0.05 per minute of use. The least he has been c
Otrada [13]

Answer:

23+0.05m=88.65

Step-by-step explanation:

0.05m=65.65

m=1,313

i think this is right, I am sorry if it is wrong...

8 0
3 years ago
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