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2 years ago

Match the situation to the most appropriate graph #7

Mathematics

1 answer:

omeli [17]2 years ago

7 0

The ones that are circled are correct

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What is the y-intercept of f(x) = (-1/4)^x?

Elena-2011 [213]

Answer:

The correct answer is A.

To find the y-intercept, substitute in 0 for x and solve for y .

6 0

2 years ago

Find the area of the shaded region in square units. Show your reasoning.

motikmotik

Answer:

40 square units

Step-by-step explanation:

First of all, lets say that square has side $l$ , so, the area unit is $l^2$

the diagonal's square is $l\sqrt{2}$

CALCULATION OF TRIANGLES'S AREA (there are 4 triangles)

$A_{triangles}=4*base*heigh*0.5=2*(l\sqrt{2} )(2l\sqrt{2} )=8l^2$

CALCULATION OF MAIN SQUARE AREA

$A_{square}=side*side=(4\sqrt{2} l)(4\sqrt{2} l)=32l^2$

TOTAL AREA

$A_{total}=A_{triangles}+A_{square}=8l^2+32l^2=40l^2$

3 0

2 years ago

Express each ratio as a fraction in the simplest form.<br> 12 beetles out of 18 insects<br> .

slava [35]

Answer:

2/3

Step-by-step explanation:

12/6=2

18/6=3

the fraction is 2/3

i think this is what your teachers means, lmk if thats wrong

3 0

2 years ago

Find the unit rate for miles per hour. Round to the nearest hundredth if necessary. A cyclist rides 65 miles in 3 hours.

Natasha2012 [34]

22 (rounded to the nearest one)

4 0

3 years ago

This is a piecewise function |x+3| ,x>2

marusya05 [52]

Answer:

Given: piece wise function-

f(x) = x + 3 for x < 0 and f(x) = 2x for x ≥ 0

First part of the function does not include x = 0.

In slope-intercept form,

slope(m) = 1

y-intercept = (0,3).

So, the conditions are shown in graphs 1 and 3.

Now, the second part of the function equation passes through origin as the equation is f(x) = 2x.

Correct choice - [B]

Note: See picture of graph attached.

Step-by-step explanation:

8 0

2 years ago