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3 years ago

SHOW YOUR WORK PLEASE!

Mathematics

1 answer:

laiz [17]3 years ago

5 0

Answer:

not equivalent

Step-by-step explanation:

Given

$\frac{6}{7}$ = $\frac{7}{9}$

If the ratios are equivalent then ib cross- multiplying the 2 sides should be equal, that is

6 × 9 should equal 7 × 7

However, 54 ≠ 49

Thus the ratios are not equivalent

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Use the quadratic formula to solve x - 5x+3 = 0.

antoniya [11.8K]

Answer:

(D) $\begin{array}{*{20}c} {x=\frac{{ 5 \pm \sqrt {13} }}{{2}}} \end{array}$

Step-by-step explanation:

The quadratic formula is:

$\begin{array}{*{20}c} {\frac{{ - b \pm \sqrt {b^2 - 4ac} }}{{2a}}} \end{array}$

Assuming that a is our x² term, b is our x term, and c is the constant, we can substitute inside the equation.

$\begin{array}{*{20}c} {\frac{{ - (-5) \pm \sqrt {5^2 - 4\cdot1\cdot3} }}{{2\cdot1}}} \end{array}$

$\begin{array}{*{20}c} {\frac{{ 5 \pm \sqrt {25 - 12} }}{{2}}} \end{array}$

$\begin{array}{*{20}c} {\frac{{ 5 \pm \sqrt {13} }}{{2}}} \end{array}$

So the answer is D, $\begin{array}{*{20}c} {x=\frac{{ 5 \pm \sqrt {13} }}{{2}}} \end{array}$ .

Hope this helped!

3 0

3 years ago

Slope = 0, y -- int = 1<br> Write the slope-intercep form of the equation of the line

Roman55 [17]

Answer:

y=0x+1 or y=x+1

Step-by-step explanation:

8 0

3 years ago

Find the next term for the given sequence.52, 45, 38, 31

valkas [14]

The answer is 24. To get to each term, we can see that the value is decreasing by 7. So 31 - 7 = 24

4 0

3 years ago

Question 9 (1 point)

sveta [45]

The answer is D it 420

4 0

3 years ago

Read 2 more answers

How would I graph this inequality?<br> <img src="https://tex.z-dn.net/?f=7x%2B3y%5C%20%20%5Ctextless%20%5C%206-5x" id="TexFormul

Anon25 [30]

Answer:

the graph in the attached figure

Step-by-step explanation:

we have

$7x+3y$

isolate the variable y

Subtract 7x both sides

$3y$

Divide by 3 both sides

$y$

The solution of the inequality is the shaded area below the dashed line

The equation of the shaded line is $y=-4x+2$

The slope of the dashed line is negative $m=-4$

The y-intercept of the dashed line is the point $(0,2)$

The x-intercept of the dashed line is the point $(0.5,0)$

To graph the inequality plot the intercepts and shade the area below the dashed line

using a graphing tool

the graph in the attached figure

3 0

3 years ago