Answers
Those two values are -7 and 4
-7 plus 4 = -3
-7 times 4 = -28
Since the numbers are -7 and 4, this means the given expression factors to (x-7)(x+4)
The two factors are x-7 and x+4
The factor x+4 isn't listed in the list of answer choices, so we can ignore it. The factor x-7 is listed as choice B, so that is the only answer.
Related Questions
You and two friends got jobs at stores in the mall. You earn
$117.60
$117.60
for
14
14
hours of work. Ty earns
$148.50
$148.50
in
18
18
hours. Kim earns
$137.60
$137.60
in
16
16
hours. Who has the highest pay rate in dollars per hour?
Answers
$117.60/14 = $8.40/hour
$148.50/18 = $8.25/hour
$137.60/16 = $8.60/hour
Kim earns the highest pay per hour.
ok i have calculated this and i srill havent got the right answer
Answers
66-19.8 = 46.2
66 x 0.05 = 3.3
46.2 + 3.3 = 49.5
B
If you discount them by 30%, you will only pay 100% - 30% = 70% of their original price.
70% of $66 =
= 70% * $66
= 0.7 * $66
= $46.2
2. Now you have an item that costs $46.20, and you need to pay 5% tax on it.
$46.20 is 100% of the price of the shoes.
If you add 5% to the price, you need to pay 100% + 5% = 105% of the price.
105% of $46.20 =
= 105% * $46.20
= 1.05 * $46.20
= $48.51
Answer: $48.51
Which of the functions sketched below could be a probability density function?
Answers
Rewrite 21/300 as a decimal.
Answers
boa saved $179 a month. he saved $145 less than ada each month. how much would ada save in three and a half years?
Answers
three and a half years is 42 months
42 months times 324
13608
It says Boa's savings each month are "$145 less than Ada", so we need to add 179 to 145. 179+145 = 324.
Okay, so now we know the amount of Ada's savings per month, we need to find out how much money she would have in 3 and a half years. 12 months is equal to one year. A half a year is 6 months. Three whole years is 36 months, and 6 months added to that is 42 months.
Since $324 represents only one month, and we want 42 months, we need to multiply 324 by 42. 324*42 = $13608. $13608 is what Ada saved within 3 years and a half.
Find the slope of the line passing through the points , (−7,2) and , (9,6) .
Answers
6-2 = 4
9- -7 =16
4/16 = 1/4
slope = 1/4
y₂ - y₁
------- = slope
x₂ - x₁
choose one as your "2" & the other as your "1" Plug them in
6 - 2
------
9 - (-7)
4/16
simplify the fraction
4/16 = 1/4
the slope is 1/4
hope this helps
Christina can paint 420 square feet in 105 minutes. Which unit rate describes the scenario?
4 square feet per minute
square foot per minute
1 square foot per 4 minutes
1 square foot per minute
Answers
divide total sq ft x total minutes to get square feet per minute
420/105 = 4
so 4 sq ft per minute
What is 2,384 divided by 23 and what is 378 divided by 56 pls help me i will give the brainliest answer to someone who answers first
Answers
2nd 6.75
8 Times 43 In expanded form
Answers
100×34 10×4 1×4 = 344 which is your answer. Hoped this helped! If you need any help just ask me! I am here to help!
Rosey
0.52 reapeating as a fraction
Answers
[tex]\bf 0.5252\overline{52}\qquad \boxed{x=0.5252\overline{52}} \\\\\\ \begin{array}{llll} 100\cdot x&=&52.5252\overline{52}\\ &&52+0.5252\overline{52}\\ &&52+\boxed{x}\\ 100x&=&52+x \end{array} \\\\\\ 100x-x=52\implies 99x=52\implies x=\cfrac{52}{99}[/tex]
Write each equation in slope intercept form 5x+3y=30
Answers
In order to get x to the other side, you subtract it on both sides.
3y = -5x + 30
But in slope intercept form, y can’t have any number in front of it. To get rid of the number, divide both sides by 3
y = -5x/3 + 6
A tree has a height of 18 feet and casts a shadow that is 6 feet in length. A boy, standing at the base of the tree’s shadow, has a height of 4 feet. How long is the shadow cast by the boy?
Answers
height of the three / its shadow = height of the boy / it shadow
18 / 6 = 4 / x => x = 4*6 / 18 = 24 / 18 = 4 / 3
Convert to mixed number: 4 / 3 = 1 and 1/3.
So, the answer is the option A. [tex]1 \frac{1}{3} feet[/tex]
Can 3.65909090909 be expressed as a fraction whose denominator is a power of 10? Explain.
Answers
notice above, all we did, was isolate the "recurring part" to the right of the decimal point, so the repeating 09, ended up on the right of it.
now, let's say, "x" is a variable whose value is the recurring part, therefore then
[tex]\bf \cfrac{3659.0909\overline{09}}{1000}\qquad \boxed{x=0.0909\overline{09}} \qquad \cfrac{3659+0.0909\overline{09}}{1000}\implies \cfrac{3659+x}{1000}[/tex]
now, the idea behind the recurring part is that, we then, once we have it all to the right of the dot, we multiply it by some power of 10, so that it moves it "once" to the left of it, well, the recurring part is 09, is two digits, so let's multiply it by 100 then,
[tex]\bf \begin{array}{llllllll} 100x&=&09.0909\overline{09}\\ &&9+0.0909\overline{09}\\ &&9+x \end{array}\quad \implies 100x=9+x\implies 99x=9 \\\\\\ x=\cfrac{9}{99}\implies \boxed{x=\cfrac{1}{11}}\\\\ -------------------------------\\\\ \cfrac{3659.0909\overline{09}}{1000}\qquad \boxed{x=0.0909\overline{09}} \quad \cfrac{3659+0.0909\overline{09}}{1000}\implies \cfrac{3659+x}{1000} \\\\\\ \cfrac{3659+\frac{1}{11}}{1000}[/tex]
and you can check that in your calculator.
use cramers rule to solve each system 6x +2y= -78 7x - 4y= -15
Answers
[tex]\bf y=\cfrac{D_y}{D}\implies \cfrac{ \begin{bmatrix} 6&-78\\7&-15 \end{bmatrix}}{-38}\implies \cfrac{(6\cdot -15)-(-7\cdot 78)}{-38} \\\\\\ \cfrac{-80+546}{-38}\implies \cfrac{456}{-38}\implies -12[/tex]
jay will make $240 doing yard work for 6 weeks. he is saving his money to buy camping equipment that cost $400. He has already saved $120. Is it reasonable to say that Jay will save enough money in 6 weeks? Explain
Answers
The complement of 17% is
Answers
Answer:
73%.
Step-by-step explanation:
Let x be the complement of 17%.
We are asked to find the complement of 17%.
We know that two angles are complementary when they add up-to 90 degrees. So we can set an equation as:
[tex]17\%+x=90\%[/tex]
[tex]17\%-17\%+x=90\%-17\%[/tex]
[tex]17\%-17\%+x=73\%[/tex]
Therefore, the complement of 17% is 73%.
What is 3.659090909090909 as a fraction?
Answers
Since there are 16 digits in 659090909090909 , the very last digit is the "10000000000000000th" decimal place.
So we can just say that .659090909090909 is the same as 659090909090909 /10000000000000000.
The fraction fmtterm: Can't handle [-2147483648/-2147483648] 3? is not reduced to lowest terms. We can reduce this fraction to lowest
terms by dividing both the numerator and denominator by -2.14748e+09.
Why divide by -2.14748e+09? -2.14748e+09 is the Greatest Common Divisor (GCD)
or Greatest Common Factor (GCF) of the numbers 6.59091e+14 and 1e+16.
So, this fraction reduced to lowest terms is
So your final answer is: 3.659090909090909 can be written as the fraction
What is the area under the normal curve between z = 0.0 and z = 1.79?
Answers
I remember some of the questions to this assignments.
The area under the normal curve between z = 0.0 and z = 1.79 is 0.4641.
Explanation:The area under the normal curve between z = 0.0 and z = 1.79 can be found by subtracting the area to the left of z = 0.0 from the area to the left of z = 1.79.
The area to the left of z = 0.0 is 0.5000, and the area to the left of z = 1.79 is 0.9641 according to the Z-table.
Subtracting the two values, we get an area of 0.4641 between z = 0.0 and z = 1.79.
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A class of 40 students elected a class president. There were 12 votes for Candidate A, and 18 votes for Candidate B. The remaining students in the class did not vote. Which expression gives the percent of voters who voted for Candidate A?
Answers
12/40 = Candidate A.
18/40 = Candidate B.
12 + 18 = 30
40 - 30 = 10
10/40 = Those who didn't vote.
ANSWER:
12 ÷ 40 = .3 (30%) So 30% voted for Candidate A.
18 ÷ 40 = .45 (45%) So 45% voted for Candidate B.
10 ÷ 40 = .25 (25%) So 25% didn't vote at all.
Those Are Your Answers! ^^^
What is the value of mc016-1.jpg?
-20
-4
4
20
the pic is the .jpg
Answers
(4-2)^3 -3*4 =
(4-2) = 2, 2^3 = 8
3*4 =12
so you have 8-12 = -4
Answer is -4
Explanation:
This question's it's about the order of operations. It stands for parenthesis, exponents, multiply, divide, add, and subtract. It can also go left too right. (PEMDAS)
First, do parenthesis.
[tex](4-2)=2[/tex]
[tex]2^3-3*4[/tex]
Then exponents.
[tex]2^3=2*2*2=8[/tex]
[tex]8-3*4[/tex]
Multiply left to right.
[tex]3*4=12[/tex]
Subtract left to right.
[tex]8-12[/tex]
[tex]12-8=4[/tex]
It change positive to negative sign.
Answer: → [tex]\boxed{=-4}[/tex]
*The answer must have a negative sign.*
Hope this helps!
Thank you!
-Charlie
If you add 20% of a number to the number itself what percent of the result would you have to subtract
Answers
1/6 = 16.667%
What is the molar solubility of magnesium fluoride in a solution that is 0.40 m f− ions? the ksp of mgf2 is 6.4 × 10−9. hints what is the molar solubility of magnesium fluoride in a solution that is ions? the of is . 8.0 × 10−9 8.0 × 10−5 1.6 × 10−8 4.0 × 10−8?
Answers
The molar solubility of magnesium fluoride in a solution with a concentration of 0.40 M fluoride ions is 0.80 M.
Explanation:The molar solubility of magnesium fluoride in a solution with a concentration of 0.40 M fluoride ions can be calculated using the solubility product constant (Ksp) of MgF2, which is 6.4 × 10-9.
First, write the dissolution equation for MgF2: MgF2(s) ⇌ Mg2+(aq) + 2F-(aq)
Since the stoichiometry of the dissolution equation is 1:2 between magnesium ions and fluoride ions, the molar solubility of MgF2 is twice the concentration of fluoride ions.
Therefore, the molar solubility of MgF2 in a solution that is 0.40 M fluoride ions is 2 × 0.40 M = 0.80 M.
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Find the equation of the parabola y = ax^2 + bx + c that is tangent to the line y = x - 1 at (0,1)
Answers
Differentiate y = ax^2 + bx + c with respect to x: dy/dx = 2ax + b. This is the slope of the tangent line to the parabola at (0,1) But we already know that the line y = x - 1 is tangent to the parabola at (0,1). Thus, 2ax + b = 1 (because the slope of y = x - 1) is 1). At (0,1), 2a(0) + b = 1, so b=1.
Thus, the equation of the parabola becomes more evident:
a) since (0,1) satisfies this equation, 1 = a(0)^2 + 1(0) + c, so c=1
Then y = ax^2 + 1x + 1, and we need only find the value of a.
Since the graph of y = ax^2 + 1x + 1 passes thru (0,1),
y = 1 = a(0)^2 + 1(0) + 1, or 1 = a(0)^2 + 1. 1 = 1, yes, but this does not tell us the value of a!
Is it possible that a could have any value?
Let a = 1. Then y = 1x^2 + 1x + 1. What is the slope of the tan. line to this curve? Differentiating, dy/dx = 2x + 1. At x = 0, the slope of the tan. line is 1. This agrees with the given y= 1x - 1.
Thus, for a = 1 at least, y = 1x^2 + 1x + 1 is the equation of the parabola.
Graphing this equation and the equation of the given line y = x -1 shows that y = x - 1 is tangent to the graph of y = x^2 + x + 1.
Find the limit, if it exists, or type dne if it does not exist.
a. \displaystyle\lim_{(x, y) \rightarrow (0, 0)} \frac{(x + 23y)^2}{x^2 + 529y^2} =
Answers
Suppose we choose a path along the [tex]x[/tex]-axis, so that [tex]y=0[/tex]:
[tex]\displaystyle\lim_{x\to0}\frac{x^2}{x^2}=\lim_{x\to0}1=1[/tex]
On the other hand, let's consider an arbitrary line through the origin, [tex]y=kx[/tex]:
[tex]\displaystyle\lim_{x\to0}\frac{(x+23kx)^2}{x^2+529(kx)^2}=\lim_{x\to0}\frac{(23k+1)^2x^2}{(529k^2+1)x^2}=\lim_{x\to0}\frac{(23k+1)^2}{529k^2+1}=\dfrac{(23k+1)^2}{529k^2+1}[/tex]
The value of the limit then depends on [tex]k[/tex], which means the limit is not the same across all possible paths toward the origin, and so the limit does not exist.
a 6-pack of capri-Suns costs $8.80 .How much would a 24-pack cost if the costs are proportional
Answers
in a 24-pack, there are 24 bottles, 24-pack.
so, if 6 bottles, cost 8.80, how much will it be for 24 bottles then?
[tex]\bf \begin{array}{ccll} bottles&price\\ \text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\ 6&8.80\\ 24&p \end{array}\implies \cfrac{6}{24}=\cfrac{8.80}{p}\implies p=\cfrac{24\cdot 8.80}{6}[/tex]
I'm struggling on this!!!!!!!!!
In a photograph, a sculpture is 4.2 cm tall and 2.5 cm wide. The scale factor is 1 to 16. Find the size of the actual sculpture.
Answers
Step-by-step explanation:
67.2 Length And 40cm Wide
What is the expression in simplest form ?
(3x - 2) - (4x + 1)
a. x-3
b. -x - 3
c. -x + 1
d. x + 1
Answers
Answer:
b. -x - 3
Step-by-step explanation:
(3x -2) -(4x +1) . . . given
3x -2 -4x -1 . . . . . . distribute the minus sign; eliminate parentheses
(3x -4x) + (-2 -1) . . . group like terms
-x -3 . . . . . . . . . . . . simplify
Which is the best unit to use for measuring the length of an eyelash millimeters C centimeters B meters or D kilometers
Answers
The best unit for the measurement of length of eyelash is millimeters
A fundamental unit of measurement is a unit of measurement in which other units are derived from, it includes length often expressed as follows;
kilometers; for large distancesmeters for large lengths of objectscentimeters; for small distances or lengths of objectsmillimeters; for relatively small lengths, like keys, eyelashes etcThus, the best unit for the measurement of length of eyelash is millimeters
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The ratio of blue marbles to white marbles in a bag is 4 to 5 at this rate how many blue marbles are there if there are 15 white marbles
Answers
A punch recipe says to mix 4 cups pineapple juice, 8 cups orange juice, and 12 cups seltzer in order to make 18 servings of punch. How many cups of each ingredient do you need to make 108 cups of punch? How many servings can be made from 108 cups of punch? For every cup of seltzer you use, how much orange juice do you use?
Answers
We know how many servings there are in 108 cups.
4 × 6 = 24
8 × 6 = 48
12 × 6 = 72
You need 24 cups of pineapple juice, 48 cups of orange juice, and 72 cups of seltzer to make 108 cups of punch.
I hope that helped! :)