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exis [7]
2 years ago
10

USING ALGEBRA TILES Write the sum of the two algebraic expressions modeled by the algebra tiles. Let x be the variable. Then use

the algebra tiles to simplify the expression. math​

Mathematics
2 answers:
defon2 years ago
6 0

Answer:

the picture is super blurry can u change the picture and I'll do my best to answer it :)

Step-by-step explanation:

GalinKa [24]2 years ago
3 0

Answer:

Step-by-step explanation:

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AlekseyPX

You are absolutely correct

4 0
3 years ago
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Please help with this area question. I have gotten my answer but I am not too sure about it, and want to make sure my reasoning
Pie

Answer:

D

Step-by-step explanation:

Area of triangle= ½ ×base ×height

Since the length of the base and the height of the triangle is equivalent to the length of a side of the square, s,

area of triangle

= ½ ×s ×s

= ½s²

Given that the area of the triangle is 12.5 units²,

½s²= 12.5

Multiply both sides by 2:

s²= 12.5(2)

s²= 25

Square root both sides:

s =  \sqrt{25}

s= 5 units

(reject negative value since s > 0)

3 0
2 years ago
The pH of randomly selected swimming pools follows a normal distribution with mean 7.4 and standard deviation 0.22. A pool shoul
skad [1K]

Answer:

78.383%

Step-by-step explanation:

The pH of randomly selected swimming pools follows a normal distribution with mean 7.4 and standard deviation 0.22. A pool should have a pH between 7.2 and 7.8 so that chlorine treatment is effective.

Using z score formula

z = (x-μ)/σ, where

x is the raw score

μ is the population mean

σ is the population standard deviation.

For x = 7.2

z = 7.2 - 7.4/0.22

z = -0.90909

Probability value from Z-Table:

P(x = 7.2) = 0.18165

For x = 7.8

z = 7.8 - 7.4/0.22

z = 1.81818

Probability alue from Z-Table:

P(x = 7.8) = 0.96548

The probability of pools having an acceptable pH level(7.2 and 7.8)

= P(x = 7.8) - P(x = 7.2)

= 0.96548 - 0.18165

= 0.78383

Converting to percentage

0.78383 × 100

= 78.383%

The percentage of pools having an acceptable pH level is 78.383%

3 0
3 years ago
Help need step by step answer getting time <br><br> 1+2r=35
Olegator [25]

Answer:

r=17

Step-by-step explanation:

35-1=34

2r=34

34 divided by 2 is 17

6 0
2 years ago
Read 2 more answers
Will bought 2 packs of baseball cards for $3 each. Later that day he bought 4 packs for $2 each. How much money did he spend tot
Leni [432]
The answers is 14. And this is a way you can show you’re work.

4 0
2 years ago
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