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Reptile [31]
3 years ago
12

Select the word statement that best matches the number statement

Mathematics
1 answer:
zheka24 [161]3 years ago
8 0
B I think not sure ......
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if bought 15 caterpillars for $3.00, how much was each caterpillar (find the unit rate for price per caterpillar)
Mashutka [201]

Answer:

20 cents

Step-by-step explanation:

Divide 3 dollars by 15 caterpillars.

3/15 = 0.2

20 cents

3 0
2 years ago
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I equals 3.14, T equals 5.71, P equals three years. <br><br> I divided by T divided by P equals?
Lunna [17]
3.14/5.71=0.18330414466 years hope this hepls
5 0
3 years ago
Help me and you get 100 points and Brainliest
OlgaM077 [116]

hey someone else has already answered this!

a. To find the least squares regression equation for a group of (x,y) points:

Step 1: For each point(x,y), we need to calculate x² and xy first.

Step 2: Sum all x, y, x² and xy, which gives us Σx, Σy, Σx² and Σxy

Step 3: Calculate Slope m: m = (NΣxy − Σx Σy)/ N(Σx²) − (Σx)² , here N is the number of data.

Step 4: Calculate Intercept b: b = Σy − m(Σx)/ N

Step 5: Assemble the equation as y= mx+b

Here, we have ∑x = 120, ∑y= 1379, ∑x²= 919.5, ∑xy= 10466 and N= 16

So, m= (NΣxy − Σx Σy)/ N(Σx²) − (Σx)²

=

=

=  

= 6.33

and b = Σy − m(Σx)/ N

=

=

=

= 38.71

So, the least squares regression equation is : y= mx+b ⇒ y= 6.33x +38.71

b. When x= 8, then y= (6.33×8)+38.71 = 50.64 + 38.71 =89.35

The approximate test score of a student who sleeps an average of 8 h a night is 89.35%

EVERYTHING IS FROM sicista on brainly!

8 0
3 years ago
Read 2 more answers
True or false? The degree of a binomial is always equal to 2
wel

Answer:

false

Step-by-step explanation:

the degree is found by looking at the term with the highest exponent of the variable..

4 0
3 years ago
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A jewelry store purchases necklaces for n dollars each. The necklaces are then marked up by 20%, and costumers are charged 5% sa
Aleksandr [31]

Answer:

Step-by-step explanation:

Cost price = $n

Mark up price = selling price- cost price

= (20% × $n)

Selling price = $n + (20% × $n)

Sales tax = 5% × ($n + (20% × $n))

Total cost = selling price + sales tax

Total cost = $n + (20% × $n) + 5% × $n + (20% × $n)

= 1.2 × $n + 0.06 × $n

= 1.26 × $n.

8 0
3 years ago
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