Пробный тест SAT онлайн

In her study of desert plants, botanist Lena Ortiz found that the creosote bush is remarkably ______: some shrubs in the Mojave Desert have survived for thousands of years, outliving nearly every other plant around them. Which choice completes the text with the most logical and precise word?

• A. delicate
• B. enduring
• C. decorative
• D. widespread

Many people picture the steppe as an empty landscape with little life. In fact, the Kazakh steppe supports dozens of species of grasses, many nesting birds, and mammals ranging from tiny jerboas to herds of antelope. In spring, melting snow creates temporary lakes that attract migrating flamingos. Which choice best describes the function of the first sentence in the overall structure of the text?

• A. It presents a common belief that the rest of the text challenges.
• B. It introduces a scientific debate that the text leaves unresolved.
• C. It summarizes research findings that the text then explains.
• D. It describes a personal experience that the text uses as an example.

Text 1: Some economists argue that a four-day workweek must reduce productivity. With one fewer day in the office, they say, employees simply have less time to finish their tasks. Text 2: In a 2022 trial involving about 60 British companies, most firms reported that productivity stayed the same or improved after moving to a four-day week. When the trial ended, the large majority of the companies chose to keep the new schedule. Based on the texts, how would the author of Text 2 most likely respond to the economists in Text 1?

• A. By agreeing that a shorter week works only if employees stay longer each day
• B. By arguing that productivity in offices cannot be measured reliably
• C. By suggesting that the trial was too small to support any conclusion
• D. By pointing to evidence that a shorter workweek did not necessarily reduce productivity

When architect Diébédo Francis Kéré designed a primary school for his home village of Gando, Burkina Faso, he used clay bricks made by local residents and a raised roof that let hot air escape. The building stayed cool without air conditioning, was cheap to maintain, and taught villagers construction skills that they later used on other buildings in the area. Which choice best states the main idea of the text?

• A. Raised roofs are more effective than clay walls at keeping buildings cool.
• B. Kéré became a famous architect because of a single school building.
• C. Kéré's school shows that a building made from local materials with a simple design can benefit a community in several ways.
• D. Most schools in Burkina Faso cannot work without air conditioning.

Grade | Average daily screen time (hours) 7 | 4.1 9 | 5.3 11 | 6.0 A researcher surveyed students at one school and concluded that screen time tends to increase as students get older. For example, ______ Which choice most effectively uses data from the table to complete the example?

• A. grade 9 students reported more daily screen time than grade 11 students did.
• B. students in all three grades reported fewer than 5 hours of screen time a day.
• C. grade 7 students reported an average of 5.3 hours of screen time a day.
• D. grade 11 students reported an average of 6.0 hours a day, compared with 4.1 hours for grade 7 students.

Honeybees tell each other where to find food by performing a "waggle dance." In one experiment, researchers raised a group of young bees that never saw older bees dance. These bees still performed the dance, but their signals about distance were much less accurate than those of bees that had watched experienced dancers. The results suggest that ______ Which choice most logically completes the text?

• A. the waggle dance is learned entirely by watching older bees.
• B. bees are born able to dance, but watching others makes their dances more accurate.
• C. bees that never see other bees dance are unable to find food.
• D. the waggle dance does not contain any information about distance.

Charyn Canyon in southeastern Kazakhstan stretches for about 154 kilometers ______ its most famous section, the Valley of Castles, attracts thousands of visitors every year. Which choice completes the text so that it conforms to the conventions of Standard English?

• A. kilometers,
• B. kilometers
• C. kilometers;
• D. kilometers, which

The collection of essays known as the Book of Words, written by the poet Abai Kunanbayuly in the late nineteenth century, ______ readers a rare look at Kazakh society of that time. Which choice completes the text so that it conforms to the conventions of Standard English?

• A. offers
• B. offer
• C. are offering
• D. have offered

Glass is often thought of as a modern material. ______ people in Mesopotamia were already making glass beads more than 4,000 years ago. Which choice completes the text with the most logical transition?

• A. Similarly,
• B. For this reason,
• C. However,
• D. In addition,

While researching a topic, a student has taken the following notes: • The Aral Sea was once one of the four largest lakes in the world. • Starting in the 1960s, the rivers that fed it were diverted to irrigate cotton fields. • By the 2000s, the sea had shrunk and split into several smaller bodies of water. • The Kok-Aral Dam, completed in 2005, helped raise the water level of the North Aral Sea. The student wants to emphasize a positive development in the history of the Aral Sea. Which choice most effectively uses relevant information from the notes to accomplish this goal?

• A. The Aral Sea was once one of the four largest lakes in the world.
• B. Starting in the 1960s, the rivers that fed the Aral Sea were diverted to irrigate cotton fields.
• C. By the 2000s, the Aral Sea had shrunk and split into several smaller bodies of water.
• D. Completed in 2005, the Kok-Aral Dam helped raise the water level of the North Aral Sea.

If 3x − 7 = 2x + 5, what is the value of x?

• A. −2
• B. 2
• C. 12
• D. 17

A taxi company charges a fixed fee of 500 tenge plus 150 tenge for each kilometer of the ride. Which equation gives the total cost C, in tenge, of a ride that is k kilometers long?

• A. C = 500k + 150
• B. C = 150k + 500
• C. C = 650k
• D. C = 150(k + 500)

x + y = 10 x − y = 4 If (x, y) is the solution to the system of equations above, what is the value of xy?

• A. 21
• B. 24
• C. 28
• D. 40

The function f is defined by f(x) = x² − 6x + 5. For what value of x does f(x) reach its minimum value?

• A. −3
• B. 1
• C. 3
• D. 5

The population of a city is 200,000 and is expected to grow by 3% each year. Which expression gives the expected population of the city t years from now?

• A. 200,000(0.03)ᵗ
• B. 200,000 + 0.03t
• C. 200,000(1.3)ᵗ
• D. 200,000(1.03)ᵗ

Which expression is equivalent to (x² − 9) / (x − 3), for x ≠ 3?

• A. x + 3
• B. x − 3
• C. x² − 3
• D. x + 9

A jacket costs 40,000 tenge. Its price is reduced by 25%, and then the reduced price is lowered by another 10%. What is the final price of the jacket, in tenge?

• A. 26,000
• B. 27,000
• C. 28,000
• D. 30,000

The data set 4, 7, 7, 9, 13 has a mean of 8. If the value 13 is replaced with 28, which statement about the new data set is true?

• A. Both the mean and the median increase.
• B. The median increases and the mean stays the same.
• C. Neither the mean nor the median changes.
• D. The mean increases and the median stays the same.

In right triangle ABC, angle C measures 90°, AC = 6 and BC = 8. What is the value of sin A?

• A. 3/5
• B. 4/5
• C. 3/4
• D. 4/3

A circle in the xy-plane has the equation (x − 2)² + (y + 1)² = 25. Which of the following points lies on the circle?

• A. (5, 3)
• B. (2, −1)
• C. (7, 0)
• D. (4, 4)