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3 years ago

The width of a rectangle is 5 cm less than the length. The perimeter is 38 cm. Find the dimensions of the rectangle

Mathematics

1 answer:

VikaD [51]3 years ago

8 0

Answer:

Step-by-step explanation:

38=2(5)+2(x ) find X

2x5-10

38-10=28

28/2=14

14/2=7

x =7

so you length is 7

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3 years ago

The point slope equation for this slope is 2

maw [93]

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y-y1=m(x-x1)
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3 years ago

Which of the a-values satisfy the following inequality?<br> 7 + a < 11

Zolol [24]

Answer:

a < 4

Step-by-step explanation:

7 + a < 11

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3 years ago

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Find the x-intercepts of the parabola with vertex (5,-4) and y-intercept (0,96). Write your answer in this form: (x1,y1),(x2,y2)

lesya692 [45]

Answer:

The x-intercepts are

(x1,y1)=(4,0)

(x2,y2)=(6,0)

Step-by-step explanation:

we know that

The equation of the given parabola is

$(y-k)=a(x-h)^{2}$

we have

the vertex is the point (5,-4)

substitute

$(y+4)=a(x-5)^{2}$

The y-intercept is the point (0,96)

substitute and solve for a

$(96+4)=a(0-5)^{2}$

$100=a(25)$

$a=100/25=4$

The equation of the vertical parabola is equal to

$(y+4)=4(x-5)^{2}$

Find the x-intercepts

Remember that

The x-intercepts are the values of x when the value of y is equal to zero

For y=0

$4=4(x-5)^{2}$

Simplify

$1=(x-5)^{2}$

Rewrite

$(x-5)^{2}=1$

square root both sides

$(x-5)=(+/-)1$

$x=(+/-)1+5$

$x=(+)1+5=6$

$x=(-)1+5=4$

therefore

The x-intercepts are

(x1,y1)=(4,0)

(x2,y2)=(6,0)

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3 years ago

Fill in the missing values<br> in the table below:

shtirl [24]

Answer:

-8 and 30 top from bottom

Step-by-step explanation:

35 is 15 higher then 20, implement that into all of them

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3 years ago

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