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3241004551 [841]
3 years ago
15

4. 12 ___ -15 = 27 5. -18 ___ -¾ = 24

Mathematics
2 answers:
bulgar [2K]3 years ago
8 0

Answer:  

4. 12 (3.5) -15 = 27

5. -18 (445.5) -¾ = 24

Step-by-step explanation:

4. 12? -15 = 27

         12? = 42

             ? = 3.5

5. -18? -¾ = 24

         -18? = 24 + 3/4

          -18? = 96/4 + 3/4

         -18? = 99/4

              ? =  891/2  or 445.5

Ksivusya [100]3 years ago
3 0

Answer:

4) 3.5

5) -1.375

Step-by-step explanation:

plug in x for the missing number and solve

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Help me, solve for x
sdas [7]

Answer:

x=10

Step-by-step explanation:

The two line segments should be equal, so you can set 2x-10 equal to x.

2x-10=x

-10=-x

x=10

3 0
3 years ago
1. What is a​ residual?
sladkih [1.3K]

Answer:

1. what is a residual?

A. A residual is a value of y -y, which is the difference between an observed value of y and a predicted value of y.

2. The regression line has the property that the_sum of squares_of the residuals is the minimum possible sum.

Step-by-step explanation:

1. What is a​ residual?

A. A residual is a value of y -y, which is the difference between an observed value of y and a predicted value of y.

2. In what sense is the regression line the straight line that​ "best" fits the points in a​ scatterplot?

The regression line has the property that the_sum of squares_of the residuals is the minimum possible sum.

5 0
3 years ago
What's 2/5 divided by 4 ( simplest form)
Lelechka [254]

Answer:

1/10

Step-by-step explanation:

\frac{2}{5} \div 4 = \frac{2}{5} * \frac{1}{4}

we multiply by the reciprocal when we work with fractions and division.

Now you just multiply across.

Therefore, you have 2/20, which simplifies to 1/10.

6 0
3 years ago
Read 2 more answers
PLEASE HELP ME!!!!!!!
Anastasy [175]

Answer:

:))

Step-by-step explanation:

Collect like terms, keeping the integer rules in mind

5. 5a + 9b - 3a + 2b + 4a

   5a + 4a - 3a + 9b + 2b (REARRANGE, if you find it to help)

   6a + 11b

6. 7m + 3n - 8m + 2n + 10m

   7m + 10m - 8m + 3n + 2n

   9m + 5n

10. 10m²n + 5mn + 9m²n - 2mn

     10m²n + 9m²n + 5mn - 2mn

     19m²n + 3mn

Try to do the rest on your own :)

7 0
3 years ago
A family has three children. Using b to stand for a boy and g for girl give the following.(To indicate that the first child is a
zubka84 [21]

Answer:

3/8 and 3/5

Step-by-step explanation:

Given that a family has three children. Using b to stand for a boy and g for girl give the following we can write sample space for a family having three children as

(bbb, bbg, bgg, bgb, gbb, gbg, ggb, ggg)

E - exactly two boys

Sample space count = 8

Exactly two boys count = 3

a) p(E) = \frac{3}{8}

b) odds for E is probability/1-probability

= \frac{3}{5}

6 0
4 years ago
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