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Q3990555 Matemática
Sendo f(x) = 1+3x/1-x, calcule Captura_de tela 2026-04-14 110810.png (116×61):
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Q3990554 Matemática
Para quais valores de x a função f(x) = -x2 - 5x - 4 é crescente?
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Q3990553 Matemática
Dois pontos A e B, de coordenadas A(4,3) e B(1,m), pertencentes ao 1° quadrante, distam de √5 cm. Qual a equação reduzida da reta que passa por esses dois pontos?
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Q3990552 Matemática
Sabendo que Captura_de tela 2026-04-14 105148.png (212×94), podemos afirmar que x é:
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Q3990551 Matemática
Determine a solução da equação x2 − (3 + √3)x + 3√3 = 0, em U = ℝ, sabendo que 12 - 6√3 = (3 − √3)2:
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Q3990550 Matemática
A respeito dos três primeiros termos de uma P.A. de termos positivos, sabe-se que a1 = -4 − 2p; a2 = -p; a3 = √1 - 3p. O oposto de a4 nessa P.A. vale: 
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Q3990549 Matemática
Um reservatório no formato de paralelepípedo retângulo com volume 960 me dimensões comprimento e largura, medindo, respectivamente, 600 cm e 80 dm, estava cheio de água até a altura que corresponde a 85% da altura total. Nessas condições, se fossem feitas duas retiradas de água, uma de 12000 L e outra de 150 kL, quanto de água restaria nesse reservatório?
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Q3990548 Matemática
Sabendo que a área do triângulo ABC de vértices A(1, 3); B(-2, 2x2);C(-1, 1) é 8 cm2, determine o valor positivo de x
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Q3990547 Matemática
Calcular 2A - 7B, sabendo que os sistemas SI SII sejam equivalentes:

Captura_de tela 2026-04-14 104458.png (384×64)
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Q3990546 Matemática
A sequência de Fibonacci (1, 1, 2, 3, 5, 8, 13, 21, ...) é um dos exemplos mais conhecidos de uma sequência recursiva. Na sequência recursiva dada pela fórmula de recorrência Captura_de tela 2026-04-14 104450.png (127×83), determine a soma dos dois primeiros termos de ordem par.
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Q3990545 Matemática
Dada a função Captura_de tela 2026-04-14 111624.png (156×30), seu domínio é:
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Q3990544 Matemática
A soma dos algarismos de A, sendo AN, e A = (266812 − 266802)0,5 :
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Q3990543 Matemática
Dada a função f(x) = 4x+2/x (x ≠ 0); determine D(f -1(x)):
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Q3990542 Matemática
Os valores reais de x para os quais as operações indicadas na lei de associação Captura_de tela 2026-04-14 103915.png (134×26)Captura_de tela 2026-04-14 103931.png (68×25) sejam possíveis em R, são: 
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Q3990456 Inglês
Read the short story below and answer the following question: 


The thirsty Crow

On a summer afternoon, a crow felt thirsty. It looked here and there but could not find a single drop of water. After a long time, it found a pitcher. There were few drops of water inside this. But the crow could not reach that water. It started to feel more thirsty. The crow again looked at its surroundings and found some pebbles nearby. So it took the pebbles one by one and started to drop them inside the pitcher. Then the water level started to increase. When the crow finally dropped all the pebbles, the water level reached the pitcher's top. The crow drank the water and finally quenched the hard thirst.


Adapted from: https://butterflyfields.com/blogs/parentingtips/top-10-amusing-moral-short-stories-in-english-for-kids/ What sentence better describe the moral of that story:
Mark the sentence from the text where an adverb is found:
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Q3990455 Inglês
Read the short story below and answer the following question: 


The thirsty Crow

On a summer afternoon, a crow felt thirsty. It looked here and there but could not find a single drop of water. After a long time, it found a pitcher. There were few drops of water inside this. But the crow could not reach that water. It started to feel more thirsty. The crow again looked at its surroundings and found some pebbles nearby. So it took the pebbles one by one and started to drop them inside the pitcher. Then the water level started to increase. When the crow finally dropped all the pebbles, the water level reached the pitcher's top. The crow drank the water and finally quenched the hard thirst.


Adapted from: https://butterflyfields.com/blogs/parentingtips/top-10-amusing-moral-short-stories-in-english-for-kids/ What sentence better describe the moral of that story:
In the sentence “It looked here and there but could not find a single drop of water”, how many verbs are there? 
Alternativas
Q3990454 Inglês
Read the short story below and answer the following question: 


The thirsty Crow

On a summer afternoon, a crow felt thirsty. It looked here and there but could not find a single drop of water. After a long time, it found a pitcher. There were few drops of water inside this. But the crow could not reach that water. It started to feel more thirsty. The crow again looked at its surroundings and found some pebbles nearby. So it took the pebbles one by one and started to drop them inside the pitcher. Then the water level started to increase. When the crow finally dropped all the pebbles, the water level reached the pitcher's top. The crow drank the water and finally quenched the hard thirst.


Adapted from: https://butterflyfields.com/blogs/parentingtips/top-10-amusing-moral-short-stories-in-english-for-kids/ What sentence better describe the moral of that story:
In the sentence “The crow again looked at its surroundings and found some pebbles nearby”, the word PEBBLES can be replaced by which word without losing the sentence meaning: 
Alternativas
Q3990453 Inglês
Read the short story below and answer the following question: 


The thirsty Crow

On a summer afternoon, a crow felt thirsty. It looked here and there but could not find a single drop of water. After a long time, it found a pitcher. There were few drops of water inside this. But the crow could not reach that water. It started to feel more thirsty. The crow again looked at its surroundings and found some pebbles nearby. So it took the pebbles one by one and started to drop them inside the pitcher. Then the water level started to increase. When the crow finally dropped all the pebbles, the water level reached the pitcher's top. The crow drank the water and finally quenched the hard thirst.


Adapted from: https://butterflyfields.com/blogs/parentingtips/top-10-amusing-moral-short-stories-in-english-for-kids/ What sentence better describe the moral of that story:
What sentence better describe the moral of that story:
Alternativas
Q3990452 Inglês
Read the comic strip below and answer the question:

Captura_de tela 2026-04-14 084016.png (419×151)

Which sentence best describes the comic strip?
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Q3990451 Inglês
Which option has the correct present tense verb for the sentences below:

1. Diana _____ to cook. (love)
2. Frank and Sibele_____ banana bread. (prefer)
3. He_____ homemade tacos. (bake)
4. As the pizza bakes, it_____ delicious. (smell)
Alternativas
Respostas
2501: A
2502: D
2503: X
2504: A
2505: B
2506: B
2507: C
2508: A
2509: D
2510: B
2511: B
2512: C
2513: C
2514: C
2515: B
2516: C
2517: D
2518: B
2519: B
2520: C