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Questions in Grade College

[Done] Multiply these two fractions: [tex]$\frac{1}{4} \times \frac{4}{9}=?$[/tex]

[Done] Isabelle has $84.00 in her account on Sunday. Over the next week, she makes the following changes to her balance via deposits and purchases: | Day | Debit ($) | Credit ($) | | --------- | --------- | ---------- | | Monday | 22.35 | - | | Tuesday | 47.60 | 10.29 | | Wednesday | 15.44 | - | | Thursday | 11.25 | --- | | Friday | 9.78 | 22.69 | | Saturday | 30.54 | 18.86 | On which day or days does Isabelle get charged an overdraft fee? I. Thursday II. Friday III. Saturday a. I only b. I and III c. II and III d. III only Please select the best answer from the choices provided.

[Done] Determine if the statement is true or false. [tex]$10 \in{1,6,7,8,10}$[/tex] Choose the correct answer below. True False

[Done] Which level of organization is characterized by a group of cells that work together to perform a common function? A. organ B. tissue C. organ system D. organism

[Done] Multiply: $2 \times(-21) \times 7$ A) -294 B) -273 C) 294 D) -7

[Done] The function $s=f(t)$ gives the position of an object moving along the $s$-axis as a function of time $t$. Graph $f$ together with the velocity function $v(t)=\frac{d s}{d t}=r(t)$ and the acceleration function $a(t)=\frac{d^2 s}{d t^2}=r^{\prime \prime}(t)$, then complete parts (a) through (f). $s=104 t-16 t^2, 0 \leq t \leq 6.5$ (a heavy object fired straight up from Earth's surface at $104 ft / sec$ ) A. The object is at rest when $v(t)=0 ft / sec$, and this occurs at $t=3.25 sec$. (Type integers or decimals. Use a comma to separate answers as needed.) B. The object is never at rest. b. When does it move to down or up? Select the correct answer below, and if necessary, fill in the answer box(es) to complete your choice (Simplify your answer. Type your answer in interval notation. Use integers or decimals for any numbers in the expression) A. The object is moving down for $t$ in the interval $\square$ , but is never moving up B. The object is moving down for $t$ in the interval ( $3.25,6.5$ ] and the object is moving up for $t$ in the interval $[0,3.25$ ). C. The object is never moving down, but is moving up for $t$ in the interval $\square$ D. The object is never moving down or up. c. When does the object change direction? Select the correct answer below, and if necessary, fill in the answer box to complete your choice. A. The object changes direction at $t =3.25 sec$. (Type an integer or a decimal. Use a comma to separate answers as needed.) B. The object never changes direction. d. When does the object speed up and slow down? Select the correct answer below, and If necessary, fill in the answer box(es) to complete your choice. (Simplify your answer. Type your answer in interval notation. Use integers or decimals for any numbers in the expression.) A. The object never speeds up, but slows down for $t$ in the interval $\square$ . B. The object speeds up for $t$ in the interval $\square$ and the object slows down for $t$ in the interval $\square$ $\square$ C. The object speeds up for $t$ in the interval $\square$. bat never slows down. $\square$ D. The object never speeds up or slows down.

[Done] Select the 3 statements about the primary fuel tank that are TRUE: A. It stores the fuel supply. B. It is held in place by two metal straps that attach to the frame. C. It is molded from high density polyethylene. D. It is located in the rear of the vehicle. E. It transfers fuel to the secondary tank.

[Done] Which type of employment test cannot be studied for or practiced for in advance? A. A technical test B. A skills test C. A personality test D. A human resources test

[Done] Solve the equation, writing the solution as a reduced fraction or as an integer. If there is no real solution enter "DNE." If there are multiple solutions, separate the solutions with a comma. Solve: $\quad \sqrt{x-9}+9=x$ Solution: $x=$ $\square$

[Done] Using the distributive property, Marta multiplied the binomial $(2 x+3)$ by the trinomial $\left(x^2+x-2\right)$ and got the expression below. $(2 x)\left(x^2\right)+(2 x)(x)+(2 x)(-2)+(3)\left(x^2\right)+(3)(x)+(3)(-2)$ Which is the simplified product? A. $2 x^3+6 x^2-x-6$ B. $2 x^3+x^2-x-6$ C. $2 x^3+5 x^2-x-6$ D. $2 x^3-x^2-7 x-6$