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daser333 [38]
3 years ago
12

NEED HELP ASAP GIVING BRAINLIST!!!!!

Mathematics
1 answer:
lbvjy [14]3 years ago
6 0

Answer:

Top left: x^2 +8x +15

Top right: x^2 +3x -18

Bottom left: x^2 -3x -18

Bottom right: x^2 -10x +16

Step-by-step explanation:

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Uma escola possui 2500 alunos matriculados e 1200 foram selecionados para participar de um concurso de redação. Qual é a razão q
Inessa [10]

Answer:

12:25

Step-by-step explanation:

Número de alunos matriculados: 2.500

Número de alunos selecionados: 1.200

A proporção que representa o número total de alunos selecionados em relação ao número de alunos matriculados é dada como:

Número de alunos selecionados: Número de alunos matriculados

= 1200: 2500

= 12 : 25

4 0
3 years ago
Write an equation in point-slope form and slope-intercept form for each line: Passes through (3,-6) and (-1,2) 
ratelena [41]
Slope intercept form is y=m(x)+b
M is the slope to find it you do the first y value minus the second y value and do the same for x
-6-2. 3+1
You then divide the subtracted y values by the subtracted x values
-8/4
M=-2
To find the b you plug in one set of the coordinates
-6=-2(3)+b
-6=-6+b
b=0
So the equation is
Y=-2x
3 0
3 years ago
9√5+√5<br> help please <br><br> and <br> 6√2+5√2-15√2
tresset_1 [31]
9√5+√5
=22.360679775
&
6√2+5√2-15√2
=-5.656854249
4 0
3 years ago
If 100 people drink 1.5 cups of coffee a day and the cost per cup is .40 how much would it cost to provide coffee for the whole
N76 [4]

Answer:

It would cost <u>15600</u> to provide coffee for the whole year.

Step-by-step explanation:

Given:

If 100 people drink 1.5 cups of coffee a day and the cost per cup is .40

Now, to find the cost to provide coffee for the whole year if you're place is open 5 days a week.

So, we have the unit rate, and we have to find the cost of 1.5 cup by multiplying 0.40.

<em>1.5 cup of coffee cost </em>1.5\times 0.40=0.60.

<em>Thus, 1.5 cup cost 0.60.</em>

<em>If, 100 people drink 1.5 cups. </em>

<em>Then, total cost of  100 people drinking 1.5 cups of coffee = </em>100\times 0.60=60<em />

<em>As, place is open 5 days a week.</em>

So, to get the cost of coffee in 5 days of a week we multiply 5 by 60:

5\times 60\\\\=300.

<em>Hence, the cost of coffee in a week is 300.</em>

<em>In 1 year there are 52 weeks.</em>

Now, to get the cost for the whole year we multiply 52 by 300:

52\times 300\\\\=15600.

Therefore, it would cost 15600 to provide coffee for the whole year.

6 0
3 years ago
Read 2 more answers
PLEASE HELP!! What is the slope of the line on the graph?
sammy [17]

Answer:

2

Step-by-step explanation:

Slope formula is the difference of the y values divided by the difference of x values. Choose to points. I chose (-2,-1) and (0,3). 3-(-1) is equal to 4. 0-(-2) is equal to 2. 4 divided by 2 is two.

5 0
3 years ago
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