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3 years ago

If you can these questions hElp I think 7 is B but am not 100% sure

Mathematics

1 answer:

Tresset [83]3 years ago

6 0

Answer:

7. Can't see the triangle

8. F

9. D

Step-by-step explanation:

8. $15*\frac{1}{4} = 3\frac{3}{4}$ $16*\frac{1}{4} =4$

9. An obtuse angle is any angle bigger than $90^{o}$ (right angle) but smaller than $180^{o}$ (reflex angle)

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What is the percent when the balance goes from $300 to $60?

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Answer:

80% decrease

Step-by-step explanation:

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3 years ago

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576 = 96 × 6

aliya0001 [1]

Answer:

Step-by-step explanation

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3 years ago

The diagram shows corresponding lengths in two similar figures. Find the ratio of the perimeters and the ratio of the areas.

yaroslaw [1]

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3 years ago

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1. What are the solutions (coordinate points) to the system of equations?

Leto [7]

Question 1

The given system of equations is:

$y = {x}^{2} + 5x + 6 \\ y = 3x + 6$

Equate the two equations:

${x}^{2} + 5x + 6 = 3x + 6$

Rewrite in standard form:

${x}^{2} + 5x - 3x + 6 - 6 = 0$

${x}^{2} + 2x = 0$

$x(x + 2) = 0$

$x = 0 \: or \: x = - 2$

When we put x=0, in y=3x +6, we get:

$y = 3(0) + 6 = 6$

One solution is (0,6)

When we put x=-2, into y=3x+6, we get:

$y = 3( - 2) + 6 = 0$

Another solution is (-2,0)

The solutions are; (0,6) and (-2,0)

Question 2:

The function is

$f(x) = {x}^{6} - {x}^{4}$

Let us put x=-x,

$f( - x) = {( - x)}^{6} - {( - x)}^{4}$

This gives:

$f( - x) = {x}^{6} - {x}^{4}$

We can observe that:

$f(x) = f( - x)$

This is the property of an even function.

Question 3:

The given function is

$f(x) = {x}^{2} + 3x - 2$

The average rate of change of f(x) from x=a to x=b is given as:

$\frac{f(b) - f(a)}{b - a}$

This is the slope of the secant line connecting the two points on f(x)

From x=2 to x=6, the average rate of change

$= \frac{f(6) - f(2)}{6 - 2} \\ = \frac{ {6}^{2} + 3 \times 6 - 2 - {2}^{2} - 3 \times 2 + 2 }{4} \\ = \frac{36 + 18 - 4 - 6}{4} \\ = \frac{44}{4} \\ = 11$

The average rate of change is 11

3 0

3 years ago

Choose all of the equations that have the solution x = -

padilas [110]

Answer:

x - = answer: x = +

x - = - answerx = - +

x + = - answer x = -

+x = answer x =

x - = - answer x = - +

the only equation is x + = -

4 0

4 years ago