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Brums [2.3K]
3 years ago
8

I NEED a LOT of help PLEASE!

Mathematics
1 answer:
Andru [333]3 years ago
5 0
4.12 is equal to

4+ 12/100

Now to convert a mixed number to an improper fraction the rule is:

a b/c=(ac+b)/c so we have

412/100

103/25
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Please do all four, thanks :) <br><br> I'm feeling generous today *40 points*
MrMuchimi

Step-by-step explanation:

A. x^2-9x+18

B. x^2-8x+16

C. 2x^2-5x-12

D. 12x^2-31x+7

8 0
3 years ago
Read 2 more answers
completa con las razones trigonométricas de cada triángulo rectángulo dado y encuentra el lado faltante aplicando el teorema de
Rus_ich [418]

primero vamos a calcular el lado faltante usando el teorema de pitagoras para poder obtener el lado faltante a

a=\sqrt[]{hipotenusa^2-cateto^2}a=\sqrt[]{100^2-85^2}=52.68

a=52.68 m

teniendo el lado faltante podemos calcular las razones trigonometricas

\sin (55)=\frac{85}{100}=0.85\cos (55)=\frac{52.68}{100}=0.52\tan (55)=\frac{85}{52.68}=1.61

\csc (55)=\frac{100}{85}=1.17\sec (55)=\frac{100}{52.68}=1.89\cot (55)=\frac{52.68}{85}=0.61

4 0
1 year ago
Jessica and Josh are selling Entertainment Books to raise money for the art room at their school. Jessica received the prize for
Over [174]

Answer:

Josh sold 16 books and Jessica sold 240 books

Step-by-step explanation:

Given: Jessica sold 15 times more books than Josh.

           Together they sold 256 books

To Find : How many did each one of them sell?

Solution:

Let Jessica sold x books

Let Josh sold y books.

Since we are given that Jessica sold 15 times more books than Josh.

⇒x=15y --a

We are also given that  Together they sold 256 books.

⇒x+y=256 --b

Using substitution method

Put value of x from equation a in equation b

⇒15y+y=256

⇒16y=256

⇒y=\frac{256}{16}

⇒y=16

Thus Josh sold 16 books

Jessica sold books = 15y = 15*16=240

Hence  Josh sold 16 books and Jessica sold 240 books

8 0
3 years ago
Read 2 more answers
Qual o valor que Z assume?<br> -Cz+ 6z = Tz+ 83
o-na [289]

Answer:

\large \boxed{z = \dfrac{83}{6 - C - T}}

Step-by-step explanation:

\begin{array}{rccl}-Cz + 6z & = & Tz + 83 & \\6z -Cz - Tz &= & 83 & \text{Subtracted Tz from each side}\\z(6 - C - T)  & = & 83 & \text{Removed the common factor}\\z& = & \mathbf{\dfrac{83}{6 - C - T}} &\text{Divided each side by 6 - C - T}\\\end{array}\\\\\large \boxed{\mathbf{z = \dfrac{83}{6 - C - T}}}

3 0
3 years ago
Pumpkin pie is on sale for $12.50. How much will it cost to buy enough to feed 20 people? Please help me!
Sever21 [200]

Answer:

$37.05

Step-by-step explanation:

thats what i got so it might not be right

3 0
3 years ago
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