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mamaluj [8]
3 years ago
12

Please help. It's algebra

Mathematics
1 answer:
spayn [35]3 years ago
7 0

Answer: For the first option it is 28y^2 +31y - 10

Step-by-step explanation: Hope this helps

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Amirah's family is driving to her uncle's house. The family travels 383.5 miles between 10:15 am and 4:45 pm. Calculate the fami
ddd [48]

Answer:

The family's average rate of travel for the day was 59.0 MPH.

Step-by-step explanation:

From 10:15AM to 4:45PM, they travelled a distance of 383.5 miles and a total of 6 hours and 30 minutes.

There are 60 minutes in an hour. 30 minutes translates into 1/2 an hour or .5

So, 6.5 hours and a total distance of 383.5 miles.

Velocity (MPH) = Distance (in miles) / Time (in hours)

MPH means Miles Per Hour

Variables:

Velocity (MPH) = x

Distance (in miles) = 383.5

Time (in hours) = 6.5

Plug in the variables into the formula

x = 383.5 / 6.5

Divide

x = 59.0 MPH

5 0
2 years ago
Read 2 more answers
Use the given data to find the best predicted value of the response variable x. Ten pairs of data yield r=0.003 and the regressi
Angelina_Jolie [31]

Answer:

Step-by-step explanation:

Given the regression equation :

y=2+3x

Mean of y values ; y = 5.0

Where y is the predicted variable ; x = predictor variable

The predicted value of y for X = 2

Null: H0 = 5

Alternative H1 : ≠ 5

Sample size (n) = 10 pairs

Degree of freedom = n - 2 = 10 - 2 = 8

7 0
3 years ago
Round 3 to 2-5+4+21+1666666-2times 43
yKpoI14uk [10]
<span><span><span><span><span>I am so sorry if this is wrong, but
2−5</span>+4</span>+21</span>+1666666</span>−<span>(2)(43)
</span></span><span>=<span><span><span><span>−3+4</span>+21</span>+1666666</span>−<span>(2)(43)
</span></span></span><span>=<span><span>1+21+1666666</span>−<span>(2)(43)
</span></span></span><span>=<span>22+1666666−<span>(2)(43)
</span></span></span><span>=<span>1666688−<span>(2)(43)
</span></span></span><span>=1666688−86
</span><span>Your answer would be 1,666,602
Hope this helps!:)</span>
6 0
3 years ago
Mika wants to buy two types of cookies. The vanilla cookies cost $4 per box and the peanut butter cookies cost $6 per box. She w
ollegr [7]

Answer:

A & B

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
You are building a tower that is 4 ft. tall. Which would your need more of to build your 4 ft. tall tower?
laiz [17]

Answer:

pennies

Step-by-step explanation:

because they are thinner than notebooks and you will need more of them

3 0
2 years ago
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