代数
一次方程、二次函数、不等式与式子变形。
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b. a 5 x 4 matrix that is in reduced row echelon form.
$$\begin{bmatrix} 1 & 0 & 0 & 0 \\ 0 & 1 & 0 & 0 \\ 0 & 0 & 1 & 0 \\ 0 & 0 & 0 & 1 \\ 0 & 0 & 0 & 0 \end{bmatrix}$$ (Note: Any 5x4 matrix meeting RREF criteria is valid; this is o…
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question 4 which is the closest antonym for the word fervent, as it is …
A. devoted
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let ( x ) represent the initial value of horace’s skateboard. write the…
$\frac{x + 7}{8} = 26$
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question 2 based on the article, which of these is true about the start…
A. Students in different countries start their academic year during different seasons.
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solve the equation for x. 2(x + 10) = -2(x - 20)
$x=5$
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solve the equation for y. leave your answer as an exact fraction if nec…
$y = 5$
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solve the equation for x. leave your answer as an exact fraction if nec…
$x = -6$
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in this activity, you will apply what you have learned in the lesson. p…
1. Output: $3$ 2. Output: $3$
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cher ami was a pigeon who helped save the lives of soldiers. june 13 wa…
A. Telephones were not commonly used during this time.
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of course, there arent many pigeons as famous as cher ami. in fact, the…
C. accurate
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cher ami was chosen for the occasion to honor perhaps the most admirabl…
C. The U.S. Army used pigeons to relay messages during World War I.
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add. (1) $4\\frac{5}{6}+\\frac{2}{9}=$ (2) $\\frac{3}{8}+2\\frac{1}{10}…
$5\frac{1}{18}$ ### (2)
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solve the linear inequality for a. write your answer in inequality nota…
$a > -20$
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solve the linear inequality for ( a ). write your answer in inequality …
$a > 2$
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solve the linear inequality for n. write your answer in inequality nota…
$n < 3$
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e82b add the fractions. show only the answer (7) $4\\frac{1}{10} + 3\\f…
\(7\frac{41}{60}\) ### (8)
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solve the linear inequality for w. write your answer in inequality nota…
$w \leq -4$
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solve the linear inequality for a. write your answer in inequality nota…
$a \leq -4$
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solve the linear inequality for y. write your answer in inequality nota…
$y \leq 3$
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solve the linear inequality for y. write your answer in inequality nota…
$y < 2$
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reading and writing 33 questions the questions in this section address …
A) widespread --- ### Question 20
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solve the linear inequality for a. write your answer in inequality nota…
$a < -5$
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solve the linear inequality for x. write your answer in inequality nota…
$x \geq 11$
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solve the linear inequality for m. write your answer in inequality nota…
$m \geq -3$
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solve the linear inequality for n. write your answer in inequality nota…
$n \geq 1$
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solve the linear inequality for k. write your answer in inequality nota…
$k \geq 2$
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(b) $(3x^2 - 5x + 3) + (x^2 + 2x - 4)$
$4x^{2}-3x - 1$
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solve the linear inequality for n. write your answer in inequality nota…
$n < -3$
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question which expression is equivalent to ( m - 10m + 6m )? answer ( 1…
\(-3m\) (the option with \(-3m\))
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express the interval using two different representations. -12 -10 -8 -6…
Interval Notation: $(-\infty, -7) \cup (8, \infty)$ Inequality Notation: $x < -7$ or $x > 8$
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-3y - 3y - 5 + 5 + 2 result: answer attempt 1 out of 2 you must answer …
\(-6y + 2\)
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question what is the value of the expression below when w = 3 and x = 5…
55
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question what is the value of the expression below when w = 7 and x = 4…
34
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question what is the value of the expression below when z = 4? 8z - 6 a…
26
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question choose the answer choice which best describes the expression b…
The quotient of two quantities
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ten mangoes and twelve avocados cost $23. five mangoes and four avocado…
$\boldsymbol{2.15}$
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how many solutions does the system of equations have? y = -\\frac{1}{2}…
A. 1 solution
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assuming x and y are both positive, write the following expression in s…
$2x^3y^3\sqrt{xy}$
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fully simplify the expression below and write your answer as a single f…
$\frac{2}{3x^3(x-4)}$ (or equivalently $\frac{2}{3x^4 - 12x^3}$)
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type the correct answer in the box. use numerals instead of words. use …
29
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sarita and willow are also learning to rock climb. sarita starts 12 fee…
The equation $y = 11x + 12$ represents **Sarita's height above ground** after $x$ minutes. The equation $y = 15x$ represents **Willow's height above ground** after $x$ minutes.
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spiral review 6. solve each equation. write each solution as a fraction…
1. $\frac{3}{2}$, 1.5 2. $\frac{3}{5}$, 0.6 3. $\frac{3}{10}$, 0.3 4. 800 meters 5. 2000 meters 6. $400x$ meters 7. 19 laps
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solve the inequality for u. \\( -6 > \\frac{2u}{5} \\) simplify your an…
$u < -15$
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quiz 1 exponent properties project e your project on another page and s…
The Product Rule of exponents \(a^m\cdot a^n=a^{m + n}\) states that when multiplying two exponential expressions with the same base, we keep the base the same and add the exponen…
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23. bellamy has dimes, nickels, and pennies in his pocket. he has two m…
12
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in general, as the unit price of a commodity increases, the demand for …
18
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in general, as the unit price of a commodity increases, the demand for …
6000
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if you are convicted of passing a stopped school bus with its red light…
A. 5
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solve for r. 6 ≤ 3r
$r \geq 2$
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solve for s. $s - 15 \\geq -10$
$s \geq 5$
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solve for n. -10 ≥ 5n
$n \leq -2$
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solve for g. 4g ≤ 8
$g \leq 2$
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solve for g. -8 ≤ g - 10
$g \geq 2$
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solve for k. \\(\\frac{k}{-1.91} > 4\\)
$k < -7.64$
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solve for y. y - 13 ≥ -54
$y \geq -41$
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solve for s. \\(\\frac{s}{11} \\leq -3\\)
$s \leq -33$
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solve for q. \\(\\frac{q}{-3} \\leq -16\\)
$q \geq 48$
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solve for h. $h + 17 \\geq 60$
$h \geq 43$
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19 multiple choice 2 points what was one main reason britain and france…
B. To stop Hitler’s power (Note: Assuming the second option is labeled B; if the original numbering differs, adjust the label to match the "To stop Hitler’s power" option.)
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multiple choice 2 points a country wants to prevent a neighbor from inv…
C. Give in to the neighbor’s small territorial demands.
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13 multiple choice 2 points if a country allows an aggressive neighbor …
C. The Munich Agreement
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11 multiple choice 2 points many leaders believed hitler’s promise that…
B. Because Hitler actually wanted more land and power.
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6. jim crow laws imposed which of the following? ○ emancipation ○ integ…
D. segregation
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5. in what way does the united nations differ from the league of nation…
The UN has a mandate to protect human rights.
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4. what ended president william h. tafts anti - trust efforts? ○ the el…
B. his decision to avoid antagonizing big business
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use the drawing tool(s) to form the correct answer on the provided grap…
1. Draw a dashed line through points $(7.5, 0)$ and $(0, -5)$ (for $y = \frac{2}{3}x - 5$). 2. Draw a solid line through points $(-2, 0)$ and $(0, 2)$ (for $y = x + 2$). 3. Shade …
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which is the best way to complete the text? the citys infrastructure fa…
cyclists; curbside
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select the correct answer. greg is training for the upcoming basketball…
C. $45x + 35y \leq 360$ $x + y \leq 8$
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which is the best way to complete the text? after mabel’s family moved …
Ocean, but
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which is the best way to complete the text? ancient mathematicians prob…
100; however,
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which is the best way to complete the text? certain items are indispens…
such as a
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Question was provided via image upload.
family; nevertheless,
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select the correct answer. ms. waller receives orders for posy bouquets…
D. Ms. Waller should make 12 posy bouquets and 6 cascade bouquets to maximize her profit.
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which is the best way to complete the text? danielles writing is effect…
economical; she
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3. which country was one of the central powers during world war i? ital…
B. Germany
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which graph represents this system of inequalities? \\begin{cases} y < …
A. <The graph with dashed lines $y=-3x+5$, $y=x+2$, $y=-1$, and the overlapping shaded region below all three lines>
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select the correct answer from each drop - down menu. a system of two l…
The point (-3,2) $\boldsymbol{\checkmark}$ located in the solution region. The point (-7,5) $\boldsymbol{\checkmark}$ located in the solution region. The point (2,-5) $\boldsymbol…
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select the correct answer. a daycare center is determining the number o…
D. $8x + 12y \leq 96$ $x + y \leq 10$
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on a field trip, there will be 1 chaperone for every 11 students. a bus…
$y = 11x$
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which matrix is equivalent to the given matrix by performing two row op…
C. $\begin{bmatrix}3&1&4\\9&-4&7\\0&-2&8\end{bmatrix}$
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find all the factor pairs for 68 and complete the equations. each equat…
$68 = 1 \cdot 68$ $68 = 2 \cdot 34$ $68 = 4 \cdot 17$
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what is the row echelon form of this matrix?\ \\(\\begin{bmatrix}2 & 4 …
B. $\begin{bmatrix}1 & 2 & 3\\0 & 1 & 1\\0 & 0 & 1\end{bmatrix}$
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find all the factor pairs for 21 and complete the equations. 21 = \\squ…
$21 = 1 \cdot 21$ $21 = 3 \cdot 7$ The full factor pairs of 21 are (1, 21) and (3, 7)
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find all the factor pairs for 60 and complete the equ $60 = 1 \\cdot \\…
$60 = 1 \cdot 60$ $60 = 2 \cdot 30$ $60 = 3 \cdot 20$ $60 = 4 \cdot 15$ $60 = 5 \cdot 12$ $60 = 6 \cdot 10$
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type the correct answer in each box. to boost the growth of a crop, a f…
$x = 30$ $y = 24$ $z = 28$
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find all the factor pairs for 84 and complete the equations. 84 = \\squ…
$84 = 1 \cdot 84$ $84 = 2 \cdot 42$ $84 = 3 \cdot 28$ $84 = 4 \cdot 21$ $84 = 6 \cdot 14$ $84 = 7 \cdot 12$
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find all the factor pairs for 45 and complete the equations. 45 = \\squ…
$45 = 1 \cdot 45$ $45 = 3 \cdot 15$ $45 = 5 \cdot 9$ The full set of factor pairs for 45 are (1, 45), (3, 15), (5, 9)
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find all the factor pairs for 50 and complete the equations. $50 = 1 \\…
$50 = 1 \cdot 50$ $50 = 2 \cdot 25$ $50 = 5 \cdot 10$ The full factor pairs of 50 are (1, 50), (2, 25), (5, 10)
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select the correct answer. what is the inverse of this matrix? \\begin{…
C. $\begin{bmatrix}-25&26&-33\\4&-4&5\\3&-3&4\end{bmatrix}$
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which system of equations can be solved using this matrix equation? \\(…
B. $5x + 2y + z = 16$ $7x - 5y + 2z = 3$ $-5x + 3y + z = 12$
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2. who helped popularize social darwinism in the united states? herbert…
A. Herbert Spencer
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1. many acts of aggression led to the dissolution of the league of nati…
D. Austria invaded Italy
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=> learn about egyptian farming https://www.youtube.com/watch?v=he89jwk…
The Nile River ### 2. Explain how a SHADUF works?
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enter the correct answer in the box. suzie tutors and babysits after sc…
$$\begin{bmatrix} 4 & 8 & 6 \\ 3 & 5 & 4 \\ 4 & 6 & 4 \end{bmatrix}\begin{bmatrix} t \\ b \\ g \end{bmatrix}=\begin{bmatrix} 215 \\ 145 \\ 170 \end{bmatrix}$$
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select the correct answer. which matrix is invertible? a. \\(\\begin{bm…
A. $\begin{bmatrix}-4&2\\10&5\end{bmatrix}$
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write the prime factorization of 15. use exponents when appropriate and…
$3 \cdot 5$
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write the prime factorization of 10. use exponents when appropriate and…
$2 \cdot 5$
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write the prime factorization of 16. use exponents when appropriate and…
$2^4$
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4. what was the purpose of the 1928 kellogg-briand pact? to support rac…
C. to prevent future wars
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3. after warren harding died suddenly, who became president? buchanan c…
B. Coolidge