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valentina_108 [34]
3 years ago
15

In the nocturnal house at the zoo, there are 4 bats for every 3 spiders. If there are 112 bats and spiders, how many are bats? H

ow many are spiders
Mathematics
1 answer:
In-s [12.5K]3 years ago
5 0

Answer:

9

Step-by-step explanation:

hehsn. iuxxj y eiwyaoa

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Having trouble with subtracting and regrouping mixed numbers. 5 1/8 -2 4/8.
Mkey [24]
You will need to convert them into improper fractions, subtract them, and convert them back to mixed numbers.
5 1/8 - 2 4/8
41/8 - 20/8
21/8
2 5/8
Your answer is 2  5/8.
5 0
3 years ago
F(1) = -3<br> f(n) = 2 · f(n − 1) +1<br> f(2)=
raketka [301]

Answer:

-5

Step-by-step explanation:

f(2) = 2 * f(1) + 1

f(2) = 2 * -3 + 1

f(2) = -6 + 1

f(2) = -5

6 0
2 years ago
I need help with question 7 <br><br> Find IK
Papessa [141]

Answer:

A. 46

Step-by-step explanation:

because IJ is 46 also and there both the same size.

5 0
2 years ago
Identify the place of the 4 in the number: 45,348
MAXImum [283]
Ten thousands and tens place.
7 0
3 years ago
An executive in the home construction industry is interested in how house size (House) is influenced by family income (Income),
Harman [31]

Answer:

Check the explanation

Step-by-step explanation:

(a)

P-value of income and size is 0.0003 and 0.0001 respectively. Both are less than 0.05 level of significance. So these are significant ot the model. Option D is correct.

(b)

The model is

House_size = -1.6335+0.4485*income + 4.2615*family_size -0.6517*school

Here we have income = 85600/1000 = 85.6

family_size = 6

school = 13

So the predicted house size is

House_size = -1.6335+0.4485*85.6 + 4.2615*6 -0.6517*13=53.855

the predicted house size (in hundreds of square feet) is 53.86. hence, option B is correct.

3)

Here we have income = 100000/1000 = 100

family_size = 10

school = 16

So the predicted house size is

House_size = -1.6335+0.4485*100 + 4.2615*10 -0.6517*16=75.40

Residual : observed value- predicted value = 70 - 75.40 = -5.40

Option C is correct.

7 0
3 years ago
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