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Amanda [17]
3 years ago
11

What is the answer to 24x + 2y =48 for x

Mathematics
1 answer:
lisabon 2012 [21]3 years ago
6 0
If your looking for the x-intercept then is would be 2
Hope this helps
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It is suspected that calcium in blood platelets may be related to blood pressure. As part of a study of this relationship, resea
mr Goodwill [35]

Answer:

Step-by-step explanation:

The null and the alternative hypothesis are:

\mathbf{ H_o: \rho = 0} \\  \\ \mathbf{H_1: \rho \ne 0}

The test statistics is as follows:

t =  \dfrac{r\sqrt{n-2} }{\sqrt{1-r^2}}

t =  \dfrac{0.4 \sqrt{30-2} }{\sqrt{1-0.4^2}}

t =  \dfrac{0.4 \sqrt{28} }{\sqrt{0.84}}

t = 2.3094

The critical value

t_{\alpha/df} =  t_\ \{0.05/2 \  , \  30-2 \} }  \\ \\  = t_{0.025,28} = \pm 2.048 ( from \ the \ t-tables)

Decision rule:

To reject H_o if t > t_{\alpha/df}.

So since t > t_{\alpha/df}. we reject H_o at ∝ = 0.05

Conclusion: There is sufficient evidence to conclude that blood pressure and patient calcium are linearly related.

3 0
4 years ago
Maths easy class 8 whoever gets it I will give u brainlist​
asambeis [7]

Answer:

424 cm²

Step-by-step explanation:

The figure is composed of a square and a trapezium on top

A of square = 18² = 324 cm²

A of trapezium = \frac{1}{2} h (b₁ + b₂ )

where h is the perpendicular height and b₁, b₂ the parallel bases

Here h = 8, b₁ = 18 and b₂ = 7 , then

A = 0.5 × 8 × (18 + 7) = 4 × 25 = 100 cm²

Area of hexagonal park = 324 + 100 = 424 cm²

8 0
3 years ago
Joyce determines that 30% of her monthly income goes for rent. If her monthly income is $2,009, about how much is her monthly re
bixtya [17]

Answer:

602.7

7,232.4

Step-by-step explanation:

2009 x 0.30 = 602.7

602.7 x 12 = 7232.4

8 0
3 years ago
A number added to -9 is -2
madreJ [45]
-9+_=-2
+9 both sides
_= 7
7 0
3 years ago
Read 2 more answers
Help, please!<br> Solve<br> 2a + 3b = 5<br> b = a - 5
damaskus [11]

Answer:

a=2

Step-by-step explanation:

a=b+5

b=a−5

7 0
4 years ago
Read 2 more answers
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