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lozanna [386]
3 years ago
8

Item 6

Mathematics
1 answer:
Ivan3 years ago
4 0
Y=kx, k is not equal to 0
when y=56, x=7, 56=7k
                             k=8
so the equation is y=8x
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<img src="https://tex.z-dn.net/?f=2%28x%20-%201%29%20%2B%203%281%20-%202x%29%20%20%20%3D%205%20-%20x" id="TexFormula1" title="2(
tamaranim1 [39]

Answer:

x = -4/3

Step-by-step explanation:

2(x-1) +3(1-2x) = 5-x

Distribute

2x-2 +3 -6x = 5-x

Combine like terms

-4x +1 = 5-x

Add 4x to each side

-4x+4x +1 = 5-x+4x

1 =5+3x

Subtract 5 from each side

1-5 =5-5 +3x

-4 = 3x

Divide each side by 3

-4/3 = 3x/3

-4/3 =x

5 0
4 years ago
Read 2 more answers
Round the answer to the nearest
kykrilka [37]

By knowing the <em>blood</em> pressure and applying the <em>quadratic</em> formula, the age of a man whose normal <em>blood</em> pressure is 129 mm Hg is 40 years old.

<h3>How to use quadratic equations to determine the age of a man in terms of blood pressure</h3>

In this problem we have a <em>quadratic</em> function that models the <em>blood</em> pressure as a function of age. As the latter is known, we must use the quadratic formula to determine the former:

129 = 0.006 · A² - 0.02 ·A + 120

0.006 · A² - 0.02 · A - 9 = 0

A = \frac{0.02 \pm \sqrt{0.006^{2}-4\cdot (0.006)\cdot (- 9)}}{2\cdot (0.006)}

A = 1.667 + 38.733

A = 40

By knowing the <em>blood</em> pressure and applying the <em>quadratic</em> formula, the age of a man whose normal <em>blood</em> pressure is 129 mm Hg is 40 years old.

To learn more on quadratic equations: brainly.com/question/1863222

#SPJ1

4 0
2 years ago
Which expression is equivalent to 4√6/3
Nookie1986 [14]

Answer:

\frac{4}{3}{\sqrt3}

Step-by-step explanation:

The question seem incomplete;

The full question is

<em>Which expression is equivalent to 4√6/3√2 </em>

<em></em>

Given

4√6/3√2

Required

Find equivalent

4\sqrt6/3\sqrt2

Rewrite Expression

\frac{4\sqrt6}{3\sqrt2}

Expand the above expression

\frac{4\ *\ \sqrt6}{3\ * \ \sqrt2}

Further split the fraction

\frac{4}{3}\ *\ \frac{\sqrt6}{\sqrt2}

Using rule of surds;

\frac{\sqrt a}{\sqrt b} = \sqrt{\frac{a}{b}}

So, the above expression becomes

\frac{4}{3}\ *\ \sqrt{\frac{6}{2}}

\frac{4}{3}\ *\ {\sqrt3}

\frac{4}{3}{\sqrt3}

At this stage, the expression cannot be further simplified;

Hence, 4√6/3√2  = \frac{4}{3}{\sqrt3}

4 0
3 years ago
Help em out pls and ill give brainliest
suter [353]

Answer:

- 10/5 = -2

- 1.25 = Box next to -2

0.75 = 2nd box facing the right

-0.5 = Box next to -1.25

3/2 = Last box facing the right

6 0
3 years ago
Read 2 more answers
Hey square patio has an area of 212 ft.² how long is each side of the patio near of 0.05
Oksi-84 [34.3K]
The answer is 44944 i dont know just a guess

7 0
3 years ago
Read 2 more answers
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