Algebra/Advanced Math
If 3x-8=7, what is the value of 3x+8?
A. -1
B. 5
C. 13
D. 23
D. 23
What is the area, in square centimeters, of a rectangle with a length of 34 cm and a width of 29 cm?
986
Many trees produce growth rings as they age, with each ring in a tree’s trunk representing one year in the tree’s life. This often makes it fairly easy to determine how old a tree was when it was cut down. To do so, you look at the tree stump and count the dark rings you see. But a researcher claims that this method often can’t be used to identify the age of olive trees.
Which detail, if true, would most directly support the researcher’s claim?
The oldest olive tree in the world is likely over 1,100 years old.
Narrow growth rings can suggest that an olive tree experienced harsh conditions.
Many olive trees have growth rings that are difficult to see.
Olive trees thrive in areas with hot, dry summers.
C. Many olive trees have growth rings that are difficult to see.
In 2000, Nora de Hoyos Comstock, herself an owner of a successful consulting firm, sought to increase Latina representation in corporate ______blank founded Las Comadres para las Americas, an international community that for over two decades has served as a resource and information network for Latina business professionals.
Which choice completes the text so that it conforms to the conventions of Standard English?
settings she
settings, she
settings and she
settings. She
D. settings. She
73, 74, 75, 77, 79, 82, 84, 85, 91
What is the median of this set of numbers?
79
5G + 45R = 380
At a school fair, students can win colored tokens that are worth a different number of points depending on the color. One student won G green tokens and R red tokens worth a total of 380 points. The given equation represents this situation. How many more points is a red token worth than a green token?
40.
A cylinder has a diameter of 8 inches and a height of 12 inches. What is the volume, in cubic inches, of the cylinder in terms of pi (eg. 90 pi)?
192 pi
Scent is tightly interwoven with our daily lives, often evoking significant memories and important social events. This connection is of growing interest to archaeologists who hope to use it to better understand ancient rituals, trade, social hierarchies, and medicine. Although the speed at which odor molecules dissipate makes identifying ancient scents challenging, advancements in biomolecular technologies show promise in unlocking ancient aromas from preserved artifacts. Archaeological studies making use of these advancements may provide new insights into past societies.
According to the text, what is one reason some archaeologists are interested in recovering scents from ancient artifacts?
They are investigating whether people’s sense of smell has declined in recent centuries.
They believe the scents could illuminate important aspects of ancient life.
They think that ancient scents would be enjoyable to people today.
They hope to develop new medicines using ancient scent molecules.
B. They believe the scents could illuminate important aspects of ancient life.
Oglala Lakota poet Layli Long Soldier’s star quilt poems offer an unusually open-ended reading experience. With ______blank eight panels of text stitched together in the shape of a traditional eight-pointed Lakota star quilt, the poems present viewers with a seemingly infinite number of ways to read them.
Which choice completes the text so that it conforms to the conventions of Standard English?
their
it’s
they’re
its
their
A wind turbine completes 900 revolutions in 50 minutes. At this rate, how many revolutions per minute does this turbine complete?
18
850
950
1400
A. 18
A linear function, f, has the points (1, -64), (2, 0), (3, 64). Function f is defined by a regular linear function ax+b, where an and b are constants. What is the value of a-b?
A. -64
B. 62
C. 128
D. 192
D. 192
Rectangles ABCD and QRST are similar, where A, B, C, and D correspond to Q, R, S, and T, respectively. If the length, in inches, of side AB = 12, RQ = 5, and QT = 10, What is the length of AD?
24
One aspect of in-person shopping that online shopping can’t replicate is the opportunity to touch a product before buying it. Does this difference matter? In an experiment, researchers asked one group of participants to touch a mug and a toy, while another group was prohibited from touching the two items. The participants were then asked how much money they’d pay for the items. People who got to touch the items were willing to pay much more money for them than were people who weren’t allowed to touch the items. This finding suggests that ______
Which choice most logically completes the text?
people who mainly shop online probably spend more money every month than people who mainly shop in person do.
in-person shopping may make products seem more valuable than they seem if only viewed online.
retailers with in-person and online stores should charge the same price for a given product in both places.
online retailers may be able to raise the prices they charge for products that are only available online.
B. in-person shopping may make products seem more valuable than they seem if only viewed online.
Based on genetic evidence, archaeologists have generally agreed that reindeer domestication began in the eleventh century CE. However, since uncovering fragments of a 2,000-year-old reindeer training harness in northern Siberia, ______blank may have begun much earlier.
Which choice completes the text so that it conforms to the conventions of Standard English?
researcher Robert Losey has argued that domestication
researcher Robert Losey’s argument is that domestication
domestication, researcher Robert Losey has argued,
the argument researcher Robert Losey has made is that domestication
researcher Robert Losey has argued that domestication
The population of City A increased by 7% from 2015 to 2016. If the 2016 population is k times the 2015 population, what is the value of k?
A. 1.07
B. 2
C. 107
D. .93
A. 1.07
4x-9y=9y+5
Hy= 2+4x
In the system of equations, H is a constant. If the system has no solution, what is the value of h?
A. -9
B. 0
C. 9
D. 18
D. 18
In a convex pentagon ABCDE, segment AB is parallel to DE. The measure of angle B is 139 degrees, and the measure of angle D is 174 degrees. What is the measure, in degrees, of angle C.
47
Algae living within the tissues of corals play a critical role in keeping corals, and the marine ecosystems they are part of, thriving. Some coral species appear brown in color when healthy due to the algae colonies living in their tissues. In the event of an environmental stressor, the algae can die or be expelled, causing the corals to appear white. To recover the algae, the bleached corals then begin to produce bright colors, which block intense sunlight, encouraging the light-sensitive algae to recolonize the corals.
What does the text most strongly suggest about corals that produce bright colors?
These corals have likely been subjected to stressful environmental conditions.
These corals are likely more vulnerable to exposure from intense sunlight than white corals are.
These corals have likely recovered from an environmental event without the assistance of algae colonies.
These corals are more likely to survive without algae colonies than brown corals are.
These corals have likely been subjected to stressful environmental conditions.
Chondrites are stony meteorites that are undifferentiated—that is, their contents have not melted and separated into distinct layers. They are hardly ______blank many chondrites experience aqueous alteration as a result of exposure to fluids, as well as fracturing, veining, and localized melting due to collisions with other objects.
Which choice completes the text so that it conforms to the conventions of Standard English?
pristine, though
pristine, though;
pristine; though
pristine, though,
B. pristine, though;
The number of zebras in a population in 2018 was 1.27 times the number of zebras in this population in 2014. If the number of zebras in this population in 2014 is p% of the number of zebras in this population in 2018, what is the value of p, to the nearest whole number?
79
The equation 29x^2+(29x+d)x+cd = 0 has solutions r and s, where c and d are positive constants. If the product rs = mcd, what is the value of the constant m?
A. 1/29
B. 1/c
C. 29
D. 1
A. 1/29
A circle in a cartesian plane has its center at (-1, 1). Line T is tangent to this circle at the point (5, -4). Which of the following points also lies on line T?
A. (0, 6/5)
B. (4, 7)
C. (6, 7)
D. (10, 2)
D. (10, 2)
Jean-Bernard Caron and colleagues recently discovered a cache of jellyfish fossils in the Burgess Shale, a site in the Canadian Rockies that is rich in fossils from the Cambrian period (over 500 million years ago). Caron and colleagues claim that these are the oldest jellyfish fossils ever discovered. In the past twenty years, two sites in China and the United States have yielded fossils of a similar age that some experts believe are most likely jellyfish due to their shapes and the appearance of projecting tentacles. But Caron and colleagues argue that the apparent tentacles are in fact the comb rows of ctenophores, gelatinous animals that are only distantly related to jellyfish.
Which statement, if true, would most directly weaken the claim by Caron and colleagues about the fossils found in China and the United States?
Sites in the Canadian Rockies from later periods than the Cambrian period have yielded fossils that have been conclusively identified as ctenophore fossils.
The fossils found in China and the United States are so poorly preserved that though they cannot be conclusively identified as jellyfish, they cannot be conclusively identified as ctenophores either.
While ctenophore fossils have been discovered in China and the United States, they have never been discovered in the Burgess Shale.
The fossils discovered by Caron and colleagues in the Burgess Shale were better preserved than the fossils discovered by other researchers in China and the United States.
B. The fossils found in China and the United States are so poorly preserved that though they cannot be conclusively identified as jellyfish, they cannot be conclusively identified as ctenophores either.
Stomata, tiny pore structures in a leaf that absorb gases needed for plant growth, open when guard cells surrounding each pore swell with water. In a pivotal 2007 article, plant cell ______blank showed that lipid molecules called phosphatidylinositol phosphates are responsible for signaling guard cells to open stomata.
Which choice completes the text so that it conforms to the conventions of Standard English?
biologist, Yuree Lee
biologist Yuree Lee,
biologist Yuree Lee
biologist, Yuree Lee,
C. biologist Yuree Lee
A certain town has an area of 4.36 square miles. What is the area, in square yards, of this town? (1 mile =1760 yards)
A. 404
B. 4567
C. 710459
D. 13,505,536
D. 13,505,536