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3 years ago

Please help! Will give branliest for correct answer ! God Bless uu!!

Mathematics

2 answers:

mafiozo [28]3 years ago

8 0

Answer:

Solution given:.

area of traingle EFG=1/2b×h=1/2×7×6=21cm²

area of rectangle ABCD=l×b=(20+9)×7=203cm²

area of rectangle BHIJ=l×b=9×11=99cm²

Total area =21+203+99=323<u>cm²</u><u> </u><u>is</u><u> </u><u>a</u><u> </u><u>required</u><u> </u><u>answer</u>

katen-ka-za [31]3 years ago

5 0

323 cm squared is the answer

Top rectangle: 9x18= 162
Lower rectangle: 20x7=140
Triangle: 1/2bh = 1/2(6)(7) = 21

162+140+21 = 323 cm squared

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While playing basketball this weekend Frank shoots an airball. The height H in feet of the ball is given by H equals -16t^2 + 32

Korvikt [17]

Answer:

Step-by-step explanation:

prey? who's attacking?

You just want to find t when H=0. So, solve

-16t^2 + 32t + 8 = 0

t = 2.22

max height is at t = -b/2a = 1

H(1) = 24

6 0

2 years ago

A certain city's population is 120,000 and decreases 1.4% per year for 15 years.

mart [117]

Answer:

Decay Problem.

Decay rate, r = 0.014
Initial Amount =120,000

$P(t)=120000(0.986)^t$
P(10)=104,220

Step-by-step explanation:

The exponential function for growth/decay is given as:

$P(t)=P_0(1 \pm r)^t, where:\\P_0$ is the Initial Population\\r is the growth/decay rate\\t is time$

In this problem:

The city's initial population is 120,000 and it decreases by 1.4% per year.

Since the population decreases, it is a Decay Problem.

Decay rate, r=1.4% =0.014
Initial Amount =120,000

Therefore, the function is:

$P(t)=120000(1 - 0.014)^t\\P(t)=120000(0.986)^t$

When t=10 years

$P(10)=120000(0.986)^10\\=104219.8\\\approx 104220 $ (to the nearest whole number)$

8 0

2 years ago

What is the value of x

ELEN [110]

Its 75 because you at the 2 variables and then subtract them by 180 so 180-105=75

4 0

2 years ago

Read 2 more answers

Abby feeds her dog 1 1/2 cups of food each day, and Braxton feeds his dog 4 1/2 cups of food each day. In one week, how many tim

ddd [48]

Solution:

Abby's dog: 1.5 cups of food
Braxton's dog: 4.5 cups of food

Looking at the information we got, we can say that Braxton's dog eats more. Let's put them into ratio form (Braxton's dog:Abby's dog)

=> (Braxton's dog:Abby's dog) = 4.5:1.5

<u>Now, put them into fractions.</u>

=> 4.5:1.5 = 4.5/1.5 = 3

We can conclude that Braxton's dog eats 3 times more food.

4 0

2 years ago

Read 2 more answers

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Brut [27]

<h3><u>☁ Problem:</u></h3>

$3x^2-5x=2$

<h3 /><h3><u>☁ Answer:</u></h3><h3> $x=2$ </h3><h3 /><h3><u>☁ Solution:</u></h3><h3> $3x^2-5x=2$ </h3><h3> $3x2-5x-2=2-2$ </h3><h3> $(3x+1)(x-2)=0$ </h3><h3> $3x+1=0$ </h3><h3> $x=2$ </h3><h3 /><h3>☁ 좋은 하루 되세요!! ☁ </h3>

<h2>-HunnyPeachy</h2>

7 0

2 years ago