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katen-ka-za [31]
3 years ago
13

Which of the following represents a first step in solving the equation (x-7)2=100

Mathematics
1 answer:
Alex787 [66]3 years ago
4 0
Will start to distribute the 2 in (x-7)
so it can be (2x-2*7)=100
(2x-14)=100
2x=100+14
2x=114
x=114/2
x=57 
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Ants have 6 legs. Elena and Andre write equations showing the proportional relationship between the number of ants, a, to the nu
Vlad [161]

Answer:

I agree with Elena

Step-by-step explanation:

Ants have 6 legs. Elena and Andre write equations showing the proportional relationship between the number of ants, a, to the number of ant legs, v.

Elena writes a = 6 times v

Andre writes v =1/6 times a.

Mathematically

The number of ants a is directly proportional to the number of legs

=a ∝ v

Because if

1 ant = 6 legs

2 ants = x legs

x = 6 legs × 2

x = 12 legs

The number of ants is directly proportional to the number of legs

Therefore, Elena is correct and Andre is wrong.

8 0
3 years ago
Help plz:) photo attached
bonufazy [111]

Answer:

y=5x+25

Step-by-step explanation:

Since the y intercept for the scatterplot is 25, that means that the only equation that matches the graph is y=5x+25

y=5(0)+25

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y=25

7 0
2 years ago
My calculator is dead and I don't have a charger any one willing to help I'll return
12345 [234]
I feel like you just want the answers right now. Tell me later if u want explanations.

1. D 2. J 3. B 4. F 5. D 6. G 7. B 8. J 9. B 10. G


6 0
3 years ago
Janet wanted to understand whether grade level had any relationship to their opinion on extending the school day. She surveyed s
konstantin123 [22]
Grade       In Favor     Opposed     Undecided          Total
9                 4                   2                    8                   14
10               7                  11                   8                    26
11               14                 15                  9                    38
12               11                 5                    10                  26
Total           36                 33                   35                 104

Above is a partial sum chart that will help us in our quest.

P(Grade 9 | opposed)
The probability of Grade 9, given opposed, is the portion of opposed students that are in grade 9. 
Total number opposed: 33
Number opposed in Grade 9: 2
P(Grade 9 | opposed) = 2 / 33 = 0.06

P(opposed | Grade 9)
Total Number Grade 9: 14
Number opposed in Grade 9: 2
P(opposed | Grade 9) = 2 / 14 = 0.14
6 0
3 years ago
Read 2 more answers
What is the measure of PQ ? please help me im lost.
svp [43]
7.2, PQ is in the middle of two corresponding angles (M and O)
3 0
2 years ago
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