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rusak2 [61]
3 years ago
5

NEED HELP ASAP

Mathematics
2 answers:
siniylev [52]3 years ago
7 0

Answer:

y = 4x -9

Step-by-step explanation:

Anika [276]3 years ago
6 0

Answer:

Y=4x+9

Step-by-step explanation:

Use rise over run to find 2 points for the slope. B is as simple as looking where the line passes y.

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Janet has read 17 of the 20 books she borrowed from the library. What percentage of the books she borrowed has she read?
Advocard [28]
17 times 5 so 85 percent.......
8 0
3 years ago
Can someone please help me figure out how to do this problem. We have tried several different ways and none of them come up as b
Ilya [14]

Answer:

74

Step-by-step explanation:

Order of operations: PEMDAS (parentheses, exponents, multiplication, division, addition, subtraction)

5(9)+2(6) ÷ 3 + 5^{2}

= 45+12÷ 3 +25

=45+4+25

=74

8 0
3 years ago
Read 2 more answers
Write the expression that shows "3 times the sixth power of 10"
Fantom [35]
3 x 10^6. It looks funny on here but the exponent of 6 goes with 10.
3 0
3 years ago
Ella stacks two boards under a table to make it level. One board is į inch thick. The
posledela

Step-by-step explanation:

the problem description is incomplete or wrongly copied.

we don't know the thickness of the boards, and we cannot understand what we need to calculate, and what the answer options are.

3 0
3 years ago
In an experiment to determine whether there is a systematic difference between the weights obtained with two different mass bala
Maslowich

Answer:

H0: μd=0 Ha: μd≠0

t= 0.07607

On the basis of this we conclude that the mean weight differs between the two balances.

Step-by-step explanation:

The null and alternative hypotheses as

H0: μd=0 Ha: μd≠0

Significance level is set at ∝= 0.05

The critical region is t ( base alpha by 2 with df=5) ≥ ± 2.571

The test statistic under H0 is

t = d/ sd/ √n

Which has t distribution with n-1 degrees of freedom

Specimen        A               B           d = a - b         d²

1                     13.76        13.74         0.02           0.004

2                    12.47        12.45          0.02         0.004

3                    10.09        10.08           0.01        0.001

4                       8.91       8.92          -0.01          0.001

5                     13.57      13.54           0.03        0.009

<u>6                     12.74      12.75          -0.01        0.001</u>

<u>∑                                                      0.06         0.0173</u>

d`= ∑d/n= 0.006/6= 0.001

sd²= 1/6( 0.0173- 0.006²/6) = 1/6 ( 0.017294) = 0.002882

sd= 0.05368

t= 0.001/ 0.05368/ √6

t= 0.18629/2.449

t= 0.07607

Since the calculated value of t= 0.07607 does not falls in the rejection region we therefore accept the null hypothesis at 5 % significance level . On the basis of this we conclude that the mean weight differs between the two balances.

3 0
3 years ago
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