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lana66690 [7]
3 years ago
6

Lol pls help it's for a study guide

Mathematics
2 answers:
Nuetrik [128]3 years ago
6 0
Need points but guy above is genius
galben [10]3 years ago
4 0

Answer:

12x + 23y

Step-by-step explanation:

5(2x + 3y) + 2(x + 4y) \\  = 10x + 15y + 2x + 8y \\   = 12x + 23y

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Which of these is an exponential parent function?
KATRIN_1 [288]
Did you provide an picture ?!
5 0
2 years ago
Find the following probabilities based on the standard normal variable Z. (You may find it useful to reference the z table
hammer [34]

Answer:

Step-by-step explanation:

a. P(Z > 1.12) = 1-N(1.12) = 1-0.8686431=0.1313569

b. <em>P(Z S-2.35)</em>  => P(Z <= 2.35) = 0.009386706

(please check interpretation of question b)

c. <em>POSZ s 1.34)</em> => P(0 <= Z <= 1.34) =  0.9098773 - 0.5 = 0.4098773

(please check interpretation of question c)

d. P(-0.8 sz s 2.44) => P(-0.8 <= 2.44) = 0.9926564 - 0.2118554 = 0.780801

(please check interpretation of question d)

7 0
3 years ago
(x – 10) + (3x – 6) =<br> please someone help?
lyudmila [28]

Answer:

4x-4

Step-by-step explanation:

x-10+3x+6=4x-4

Hope helps :3

7 0
3 years ago
Read 2 more answers
The perimeter of a rectangle is 22 inches. Find the dimensions if its length is 3 inches greater than its width.
MaRussiya [10]

Answer:

Length: 7

Width: 4

Step-by-step explanation:

We can create a system of equations for this problem, where w is the width and l is the length.

The perimeter of a rectangle is twice its length added to twice its width.

2l+2w=22

The length is 3 more than the width:

l = w+3

We can now substitute in w+3 as l in the equation 2l+2w=22.

2(w+3) + 2w = 22

Distribute the first terms:

2w+6+2w=22

Combine like terms:

4w+6=22

Subtract 6 from both sides:

4w=16

Divide both sides by 4:

w = 4

Now we know that w = 4. We can now substitute this inside an equation to find l.

l = w+3\\\\l = 4+3\\\\l=7

Hope this helped!

7 0
4 years ago
What property justifies the second step for this equation?
Ipatiy [6.2K]
It would be the distributive property. :)

4 0
3 years ago
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