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Rashid [163]
2 years ago
12

Evaluate 5x2 – 2y3 when x = 2 and y = 4

Mathematics
1 answer:
egoroff_w [7]2 years ago
6 0

Answer:

-4

Step-by-step explanation:

(substitute in x=2 and y=4 soo...)

5 x 2 x 2 = 20

2 x 4 x 3 = 24

20 - 24 = -4

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(8,3) and (-4,-3).<br> Slope
Korolek [52]

Answer:

The slope is 1/2

Step-by-step explanation:

The rate of y over the rate of x so it would be y/x. You put the equation y2-y1/x2-x1

Which would look like -3-3/-4-8= -6/-12=6/12 and then you simplify it to 1/2

3 0
2 years ago
What is the measurement of LZ<br> HUT you see the sight line What is a stright and end
Alexxandr [17]

Answer:

z = 155 ( second choice )

Step-by-step explanation:

x = 25

65 + 90 = 155

180 - 155 = 25 = x

180 - 25 = 155 = z

4 0
2 years ago
How many moles are in 30.0g of N2
vazorg [7]

Answer:1.0709

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Can you guys please help me my math teacher wants us to get this right and I don’t get it please help me on all of it
Ostrovityanka [42]

#5 is

Let's solve your equation step-by-step.

2

5

x−1=9

Step 1: Add 1 to both sides.

2

5

x−1+1=9+1

2

5

x=10

Step 2: Multiply both sides by 5/2.

(

5

2

)*(

2

5

x)=(

5

2

)*(10)

x=25

Answer:

x=25

7 0
3 years ago
The area of a rectangular raised garden bed for growing beets is given by the expression(3b)(3b-3). The length, l, of the mat is
mars1129 [50]

Answer:

C and D

Step-by-step explanation:

The area of a rectangular raised garden bed for growing beets is given by the expression (3b)(3b-3).

The area of the rectangle is

A=\text{Width}\cdot \text{Length}

Thus,

\text{Width}=3b\\ \\\text{Length}=3b-3

or

\text{Width}=3b-3\\ \\\text{Length}=3b

The length of the mat is greater than its width. Since

3b>3b-3

then

\text{Width}=3b-3\\ \\\text{Length}=3b

Options A and B are false, options C and D are true.

7 0
3 years ago
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