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Oksana_A [137]
3 years ago
6

NEED HELP WILL MARK BRAINIEST!

Mathematics
1 answer:
Illusion [34]3 years ago
7 0

Answer:

A) 23+5=28

B) 23-5=18

i hope it helped

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If a track is 400 meters around, how many laps around the track would it take to run 3.1 miles? Round to the nearest tenth. (Hin
zaharov [31]

Answer:

3200 meters

Step-by-step explanation:

because it is

4 0
2 years ago
Find the product 4 2/3 x 3 3/4
storchak [24]

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45.6

Step-by-step explanation:

trust me bro(don't)

7 0
3 years ago
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Which equation can be simplified to find the inverse of y = 5x2 + 10?
zmey [24]

f^-1(x) = sq.rt 5(x - 10)/5, sq.rt 5(x - 10)/5 is the inverse of y = 5x^2 +10

Step-by-step explanation:

interchanging the variables

x = 5y^2 + 10

5y^2 +10 = x

5y^2 = x - 10

dividing by 5

5y^2/5 = x/5 + -10/5

y^2 = x/5 + - 10/5

y^2 = x/5 - 2

y = 5 (x-10) 0/5 (sq.rt)

g(5x^2 + 10) = 5x/5

g(5x^2 + 10) = x

f^-1(x) = sq.rt 5(x - 10)/5, sq.rt 5(x - 10)/5 is the inverse of y = 5x^2 +10

5 0
3 years ago
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Help how do you solve this (step by step preferably please) 7^x5^y7^z
Sophie [7]

Answer:

i realy try my best here it

Rewrite the equation as

7

x

+

5

y

=

z

.

7

x

+

5

y

=

z

Subtract

5

y

from both sides of the equation.

7

x

=

z

−

5

y

Divide each term by

7

and simplify.

Tap for more steps...

x

=

z

7

−

5

y

7

Step-by-step explanation:

7 0
2 years ago
We test for a hypothesized difference between two population means: H0: μ1 = μ2. The population standard deviations are unknown
Lina20 [59]

Answer:

The degrees of freedom associated with the critical value is 25.

Step-by-step explanation:

The number of values in the final calculation of a statistic that are free to vary is referred to as the degrees of freedom. That is, it is the number of independent ways by which a dynamic system can move, without disrupting any constraint imposed on it.

The degrees of freedom for the t-distribution is obtained by substituting the values of n1​ and n2​ in the degrees of freedom formula.

Degrees of freedom, df = n1​+n2​−2

                                       = 15+12−2=27−2=25​

Therefore, the degrees of freedom associated with the critical value is 25.

4 0
3 years ago
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