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3 years ago

How do I find the area and perimeter for this

Mathematics

1 answer:

likoan [24]3 years ago

7 0

You split it into 2 shapes.
So the simplest way to split it up is splitting it into 2 rectangles of 2x3 and 3x7

So then, the are of the whole figure would be 6+ 21 = 27 square units.

The perimeter would be 2+3+3+5+7 = 20 units.
(By the way to find the length of the black side, you add up the number on the opposite side, 2+3 = 5)

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9y -4y+3 if y =7 solve this

BigorU [14]

Plug 7 into each y. 9(7) -4(7) +3
63-28+3
The answer is 38

5 0

2 years ago

PLEASE HELP ASAP -- WITH THE WORKK<br><br>50 points

MAXImum [283]

Part-A:-

$\\ \sf\longmapsto x^2+3x-70(4x-12)$

$\\ \sf\longmapsto 4x^2+12x-280-12x^2+36x+840$

$\\ \sf\longmapsto -8x^2+48x+560$

Now

$\\ \sf\longmapsto (f.g)(3)$

$\\ \sf\longmapsto -8(3)^2+48(3)+560$

$\\ \sf\longmapsto -72+144+560$

$\\ \sf\longmapsto 72+560$

$\\ \sf\longmapsto 632$

Part-B:-

$\\ \sf\longmapsto f(3)$

$\\ \sf\longmapsto (3)^2+3(3)-70$

$\\ \sf\longmapsto 9+9-70$

$\\ \sf\longmapsto 18-70$

$\\ \sf\longmapsto -52$

Now

$\\ \sf\longmapsto g(f(3))$

$\\ \sf\longmapsto g(-52)$

$\\ \sf\longmapsto 4(-52-3)$

$\\ \sf\longmapsto 4(-55)$

$\\ \sf\longmapsto -220$

Part:-C

$\\ \sf\longmapsto g(-2)$

$\\ \sf\longmapsto 4(-2-3)$

$\\ \sf\longmapsto 4(-5)$

$\\ \sf\longmapsto -20$

Now

$\\ \sf\longmapsto f(g(-2))$

$\\ \sf\longmapsto f(-20)$

$\\ \sf\longmapsto (-20)^2+3(-20)-70$

$\\ \sf\longmapsto 400-60-70$

$\\ \sf\longmapsto 400-130$

$\\ \sf\longmapsto 270$

Part-D:-

g×f=f×g

$\\ \sf\longmapsto (g.f)(-2)$

$\\ \sf\longmapsto -8(-2)^2+48(-2)+560$

$\\ \sf\longmapsto 32-96+560$

$\\ \sf\longmapsto -64+560$

$\\ \sf\longmapsto 496$

6 0

2 years ago

PLEASE HELP !!!!

Bess [88]

Answer:

About 31 years

Step-by-step explanation:

Given data

Principal= $3500

Rate= 4.75%

Final amount= $15,000

Time=??

The expression for time on compound interest is

Calculate time, solve for t

t = ln(A/P) / r

substitute

Calculate time, solve for t

t = ln(15000/3500) / 0.0475

t= ln(4.2857)/ 0.0475

t= 1.4552/0.0475

t= 30.63 years

Hence it will take about 31 years

4 0

2 years ago

A store has apple on sale for $20.00 for 8 pounds. If an apple is approximately 5 ounces, how manyapples can you buy for $120.00

lubasha [3.4K]

Answer: 24 apples

Step-by-step explanation: $20.00 = 8 pounds and 16 ounces = 1 pound So you can do $120.00 divided by 5 = 24 apples

4 0

2 years ago

What is the final equation in standard form of m=-6/7, b=3 1/7

arlik [135]

<span>We are given the slope and the y-intercept.

m=-6/7, b=3 1/7

We use the slope-intercept form of the equation of the line to get an equation.

y = mx + b

y = -6/7x + 3 1/7

Now we need standard form.
The x- and y-terms must be on the left side, and we need integer coefficients.

y = -6/7x + 22/7

Multiply both sides by 7.

7y = -6x + 22

Add 5x to both sides.

6x + 7y = 22
</span>

8 0

2 years ago