merrickrittany
09.07.2021 •
Mathematics
1)Um agricultor estava perdendo a sua plantação em virtude da ação de uma praga. Ao consultar
um especialista, foi orientado para que pulverizasse, uma vez ao dia, uma determinada quantidade
de um certo produto, todos os dias, da seguinte maneira:
primeiro dia: 1,0 litro, segundo dia: 1,2 litro, terceiro dia: 1,4 litro e assim sucessivamente.
Sabendo-se que o tratamento durou 30 dias quantos litros desse produto foi utilizado?
2)Uma pessoa tomou a decisão de todos os dias fazer uma caminhada e se programou da seguinte
forma: no primeiro dia, caminharia 1.500 m e, em cada dia subsequente, 700 m a mais do que no dia
anterior.
Passados alguns dias, ela resolveu rever sua programação, tendo em vista que, ao continuar com a
programação inicial, no 20 dia ela deveria caminhar _________ e, após essa caminhada, teria feito
uma média diária de _______.
Assinale a alternativa cujos valores preenchem, correta e respectivamente, as lacunas acima.
a) 14,8 km — 8,15 km
b) 13,3 km — 7,4 km
c) 14,8 km — 7,4 km
d) 13,3 km — 6,65 km
e) 15,5 km — 7,75 km
3) Um pai resolve depositar todos os meses uma certa quantia na caderneta de poupança de sua
filha. Pretende começar com R$5,00 e aumentar R$ 5,00 por mês, ou seja, depositar R$ 10,00 no
segundo mês, R$ 15,00 no terceiro mês e assim por diante. Após efetuar o décimo quinto
depósito, a quantia total depositada por ele será de:
a) R$ 150,00
b) R$ 250,00
c) R$ 400,00
d) R$ 520,00
e) R$ 600,00
------------------------
4) Achar três números em P.G. crescente, sendo 31 a soma e 125 o produto.
5) Determine o número de termos de uma P.G. na qual a1 = 4, q = 2 e Sn = 2044.
6)Calcular a soma dos termos da P.G.
Solved
Show answers
More tips
- F Food and Cooking How to Determine Healthy, Nutritious Food for Yourself?...
- S Style and Beauty How to Get Rid of a Bruise: Tips and Tricks...
- F Food and Cooking Лечо: вкусное и простое блюдо для любой кухни...
- H Health and Medicine Relieving Swelling in Legs: Causes and Ways to Alleviate the Symptom...
Answers on questions: Mathematics
- M Mathematics Can someone help please! thank u so much, i’m struggling rn :( Question: how can 46,000,987,030 be written in word form? a. forty six million,nine hundred,eighty seven, thousand...
- M Mathematics Follow the guided instructions below to rotate the figure 180° counter-clockwise about the origin. Draw a circle centered at the center of rotation, such that one of the vertices...
- M Mathematics PL HELP ILL MARK BRAINLIEST Triangle J′K′L′ shown on the grid below is a dilation of triangle JKL using the origin as the center of dilation: Which scale factor was used to create...
- M Mathematics Can you reduce the fraction 4/6?...
- M Mathematics Someone..Anyone help pleaseeeeee ???ASAP 30 points ??????????...
- M Mathematics If a quadrilateral is a rhombus, what must also be true? O All angles are congruent. O No angles are congruent. O Opposite sides are parallel. 0 Opposite sides are not parallel....
- M Mathematics Find the unit rate 8750 steps every 1.25 hours...
- M Mathematics Explain why 3(5x) does not equal to (3 times 5)(3times x)...
- M Mathematics 9. How many ways can 6 different items be arranged in a line and how many ways can 6 different items be arranged in a circle? 1...
- M Mathematics A certain vending machine offers 20-ounce bottles of soda for $1.50. The number of bottles X bought from the machine on any day is a random variable with mean 50 and standard...
Ответ:
We can extract the points (3, 21) and (6, 12) from the graph.
First we are going to find the slope of the line passing through those points. To do it, we are using the slope formula:
where
is the slope of the line
are the coordinates of the first point
are the coordinates of the second point
Our first point is (3, 21) and our second point is (6, 12), so let's replace the values
Now, to find the equation of the line in point, slope, we are using the point-slope formula:
where
is the slope of the line
are the coordinates of the first point.
Since we have the slope, let's replace the values:
Next, to find the equation in slope-intercept form, we just need to solve our point-slope equation for :
Answer
Equation of the line in point-slope form:
Equation of the line in slope-intercept form:
(b)The time that initially took Scoot to deliver his packages is the time it took him to deliver the packages in his first day of work. In the hist day of word, zero days has passed since he begin working, so .
It initially took Scoot 30 minutes to deliver his packages.
Now, since the slope of our line is negative 3, Scott's delivery time decreases 3 minutes per day.
Answer
It initially took Scoot 30 minutes to deliver his packages.
Scott's delivery time decreases 3 minutes per day.