3 years ago

PLEASE HELP would ya?

Mathematics

2 answers:

olasank [31]3 years ago

7 0

Answer:

1st, 2nd, and 5th box

Step-by-step explanation:

jeka57 [31]3 years ago

3 0

I can’t see the pic

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In a quiz need help ASAP

Dominik [7]

Answer:

So first you have 5(8x+3)

And then you simplify it:

5(8x)=40x

5(3)=15

And then you get 40x+15

4 0

3 years ago

Read 2 more answers

a rectangle has a length that is nine feet less than four times its width. Its area is 90 ft. Algebraically determine the length

sammy [17]

Ok... after much confusion, I've come to the conclusion that you must have written the question wrong and it's actually the perimeter that is 90 feet so that's how I'm going to work it...

Width = w
Length = 4w - 9

P = 2w x 2L
90 = 2w + 2(4w - 9)
90 = 2w + 8w - 18
90 = 10w - 18
108 = 10w
108/10 = w
10 4/5 = w

Width is 10 4/5 ft

Length = 4w - 9
L = 4(10 4/5) - 9
L = 43 1/5 - 9
L = 34 1/5 ft

Length 34 1/5 ft Width 10 4/5 ft or
Length 34.2 ft and width 10.8 ft

6 0

3 years ago

the temperature on a summer day is 77 degree fahrenheit , the formula convert temperature to degrees Celsius =5/9 (f-32). what i

Maurinko [17]

$C=\frac{5}{9}(F-32)\\\\F=77\\\\put\ value\ of\ F\ to\ equation:\\\\C=\frac{5}{9}(77-32)=\frac{5}{9}\cdot45=5\cdot5=25\\\\\boxed{77^o F=25^o C}$

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3 years ago

On the day Alexander was born, his father invested $5000in an account with a 1.2% annual growth rate. Write a function, A(t) tha

stepladder [879]

Answer:

Equation: $A(t)=5000(1.012)^n$

Worth more in 32 yr than in 17 yr by: $1199.92

Step-by-step explanation:

THe compound growth formula is:

$F=P(1+r)^n$

Where

F is the future amount (here, A(t))

P is the initial amount, here 5000

r is the rate of growth in decimal, 1.2% = 1.2/100 = 0.012

n is the time in years

Thus, we can say the function would be:

$A(t)=5000(1+0.012)^n\\A(t)=5000(1.012)^n$

Now, we want how much more it will be worth when 17 years and 32 years. We find the future amount, A(t), when n= 17 and n = 32 and find the difference. Shown below:

$A(t)=5000(1.012)^n\\A(17)=5000(1.012)^{17}\\=6124.05$

and

$A(32)=5000(1.012)^{32}\\=7323.97$

So, it will be worth more by:

7323.97 - 6124.05 = $1199.92

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3 years ago

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Karolina [17]

(3.3x10^3)/(2.2x10^7)= 0.00015

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3 years ago