Answer:
Step-by-step explanation:
Given the function f (x) = x² + 8x + 7, what are the zeros of f?
Answer:
x = - 7, x = - 1
Step-by-step explanation:
To find the zeros let f(x) = 0 , that is
x² + 8x + 7 = 0
Consider the factors of the constant term (+ 7) which sum to give the coefficient of the x- term (+ 8)
The factors are + 7 and + 1 , since
7 × 1 = + 7 and 7 + 1 = + 8 , then
x² + 8x + 7 = 0
(x + 7)(x + 1) = 0 ← in factored form
Equate each factor to zero and solve for x
x + 7 = 0 ⇒ x = - 7
x + 1 = 0 ⇒ x = - 1
Find the median of the data.
35, 29, 21, 49, 13, 38, 40
Answer:
to sum it up put all of the numbers ers in order and it is the middle number
Answer:
13, 21, 29, (35) , 38, 40, 49
Step-by-step explanation:
The medium is the number in the middle in an assorted number line so do least from greatest and pick one out of the middle
what is the value of x in the equation 3(2x + 8) =0
Answer:
x=-4
Step-by-step explanation:
1. Distribute
3(2x+8)=0
6x+24=0
2. Subtract 24 from both sides.
6x+24=0
6x+24-24=0-24
3. Simplify
6x=-24
4. Divide both sides of the equation by the same term
6x=-24
[tex]\frac{6x}{6}[/tex] = [tex]\frac{-24}{6}[/tex]
5. Simplify
x=-4
And thats the answer.
I hope this helps :)
PLEASE ANSWER FAST! What is the base of a 30-60-90 triangle with a height of 12 yd?
Answer:
side opposite 30° angle (shorter leg) = 6 cm
side opposite 60° angle (longer leg) = 6√3 cm
Step-by-step explanation:
I'm not 100% sure if this is right but if its wrong i am so sorry.
Figure A is a scale image of Figure B.
Answer:
x = 5.4
Step-by-step explanation:
Corresponding sides are in proportion, that is
[tex]\frac{x}{7.2}[/tex] = [tex]\frac{3}{4}[/tex] ( cross- multiply )
4x = 21.6 ( divide both sides by 4 )
x = 5.4
Does someone have an answer
Answer:
for what
Step-by-step explanation:
helo?
Answer:
x = $11
Step-by-step explanation:
5x = $55
9x = $99
2x = $22
In order to find the relationship between x and y, all we have to do is divide y by the term.
$55 ÷ 5 = 11
$99 ÷ 9 = 11
$22 ÷ 2 = 11
Therefore, each ticket sold is $11, or x = $11
One half of one one hundredth is
Answer:
1/2 of 1/100 = 1/200
Step-by-step explanation:
Yui makes a list of the balances in her savings account at the end of each month. She notices that each month's total is 5% greater than the previous moth's total. She writes a recursive formula to describe the account balances. Which value should she use as the common ratio
Answer:
the answer is C 1.05
Step-by-step explanation:
i need help what is x?
Answer:
square root of 109
Step-by-step explanation:
Use the Pythagorean Theorem to find x. The equation is a^2+b^2=c^2. In this case, a=3, b=10, and c=x. Plug that into the equation to get 9+100=c^2. Simplify that to get 109=c^2. Then divide each side by squared to get square root of 109=c.
Hope this helps
Jim and bill each invest $15,000 into savings accounts that earn 3.5% interest. Jims account earns simple interests and bills account earns compound interest. After 25 years, who will earn more interest and how much more will he earn.
Answer:
Bill will earn more interest
He will earn $ 20,448.67 from his investment
Step-by-step explanation:
Firstly let us calculate Jim's earnings based on simple interest
A = P(1 + rt)
Calculation:
First, converting R percent to r
a decimal
r = R/100 = 3.5%/100 = 0.035 per year.
Solving our equation:
A = 15000(1 + (0.035 × 25)) = 28125
A = $28,125.00
The total amount accrued, principal plus interest, from simple interest on a principal of $15,000.00 at a rate of 3.5% per year for 25 years is $28,125.00 for Jim
Now let's us calculate bill's investment based on compound interest
Equation
A = P(1 + r)^t
A=15000(1+0.035)^25
A=15000(1.035)^25
A=15000*2.36324498427
A = $ 35,448.67
We see that Bill will earn
$ 20,448.67 from his investment
Ursula surveyed 50 classmates about their favorite ice cream flavors. Each classmate chose one flavor. The results are shown in the circle graph. Favorite Ice Cream Flavors Coffee 14% Chocolate 42% Strawberry 18% Vanilla How many more of Ursula’s classmates chose chocolate than chose vanilla?
Answer:
3
Step-by-step explanation:
Answer:
answer would be 3!
Step-by-step explanation:
view the problem, it could be adding or subtracting. your welcome! c:
Hal's business made 50,0000 last year. This year, his business made 650,000. What is the percentage difference?
The percentage difference in the amounts made is 30%.
What is the percentage difference?Percentage can be described as a fraction out of an amount that is usually expressed as a number out of hundred.
Percentage difference= [ (amount made this year / amount made last year) - 1 ] x 100
'(650,000 / 500,000) - 1] x 100 = 30%
To learn more about percentages, please check: https://brainly.com/question/25764815
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determine which expression are equivalent to the expression -p(q+r+5)
Answer:5p-+q+r
Step-by-step explanation:
you will get brianliest
Answer:
1.8
2.10
3.9
Step-by-step explanation:
LOl why are u asking this
Answer:
1 is 8
2 is 10
3 is 9
Step-by-step explanation:
basically ur dividing the fraction so its like if u cut parts of a singular slice of pizza
One jar has 13 pennies, a second jar has 7 pennies, a 3rd jar has 10 pennies, and a 4th jar has 30 pennies. On average how many pennies does each
jar have?
Answer:
60
Step-by-step explanation:
13+7=20 20=10=30 30+30= 60
Hope this helps!
Answer:15
Step-by-step explanation:
the circle shown below has chords XY XZ with XY =XZ. The measure of XY is 130 as shown. What is the measure of
help please???????????????????????
Answer:
2. reflexive property
4. transitive property
5. By angle angle side
Hope this helps
ALL THE BEST!!
Why shouldn’t you expect to take a year to pay off a credit card charge?
I just put this Question so- yea
Answer:
the answer is 70
Step-by-step explanation:
its simple just BASIC =D
but at least its a win win you got yo answer i got my points GOOD DaY
Answer:
1680 ÷ 40320 = 24
Step-by-step explanation:
write an inequality to show the relationship between -3 and -7
Answer:
-3 > -7.
Step-by-step explanation:
-3 degrees is cold but its warmer ( higher) that -7 degrees.
-3 > -7.
Help plssss I’m really bad at math and I have no clue what I’m doing <3333 also remember you can choose more than 1
Answer:11111
Step-by-step explanation:
1
How would you limit the domain to
make this function one to one?
f(x) = (x + 3)^2
Answer:
Domain would be x ≥ -3.
So enter -3.
Step-by-step explanation:
This is a parabola with line of symmetry x = -3.
When x has values like say -4 and -2, f(x) will have a value of 1 making the function many to one.
So, to make it one to one, x would have to be equal or greater than -3.
A function assigns values. The limit of the domain to make this function one to one is x≥3.
What is a Function?A function assigns the value of each element of one set to the other specific element of another set.
A one to one function is a function whose every input gives a distinct output. Now given the function is a quadratic function, therefore, the function will have the same output for multiple inputs.
Since the symmetrical axis for this function lies at x=-3, therefore, for the function to be one to one the domain of the function must be greater than or equal to 6.
Hence, the limit of the domain to make this function one to one is x≥3.
Learn more about Function:
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Work out the value of x.
Answer:
x = 20
Step-by-step explanation:
2x + 7x = 180
9x = 180
x = 20
Answer Please ⠀⠀⠀⠀⠀⠀⠀⠀
Answer:
if;3=1.98 what about 2
3-1.98
2-?
2×1.98÷3=$1.32
Ans: 2 cans for $1.32Independent = cups of milk poured Dependent = Milk left in the gallon jug Independent = Milk left in the gallon jug Dependent = cups of milk poured
Answer:
Independent = Milk left in the gallon jug
Dependent = cups of milk poured
Step-by-step explanation:
In an experiment or a research, a variable is defined as the thing or a phenomenon that you are trying to found out or measure. Variables can be independent variable as well as the dependent variable.
Independent variable is the variable that the researcher or the experimenter can change or manipulate in the research. This variable does not depend on others and thus stands alone. Its value can be change or altered to find the changes in the dependent variables. They are used as treatment variables.
Whereas, the dependent variables are those variables that are dependent on the values of the independent variables. It is considered as the effect of the independent variable. An independent variable is often manipulated to measure the outcome in the dependent variable.
In the context, the cups of milk poured is the dependent variable and the independent variable is the amount of milk left in the jug.
Here are five sums. Use the distributive property to write each sum as a product with two factors. 2+7 5−10 −2^2 +++ 2−1/2
Question:
Here are five sums. Use the distributive property to write each sum as a product with two factors.
[tex](a)\ 2a + 7a[/tex] [tex](b)\ 5z - 10[/tex] [tex](c)\ c - c^2[/tex] [tex](d)\ r + r+ r+ r[/tex] [tex](e)\ 2x - \frac{1}{2}[/tex]
Answer:
[tex](a)\ 2a + 7a = 9a[/tex]
[tex](b)\ 5z - 10 = 5(z - 2)[/tex]
[tex](c)\ c - c^2 = c(1 - c)[/tex]
[tex](d)\ r + r + r + r = 4r[/tex]
[tex](e)\ 2x - \frac{1}{2} = \frac{1}{2}(4x - 1)[/tex]
Step-by-step explanation:
Required
Apply distributive property
[tex](a)\ 2a + 7a[/tex]
Apply distributive property [Factor out a]
[tex]2a + 7a = a(2 + 7)[/tex]
[tex]2a + 7a = a(9)[/tex]
Open bracket
[tex]2a + 7a = a*9[/tex]
[tex]2a + 7a = 9a[/tex]
[tex](b)\ 5z - 10[/tex]
Express 10 as 5 * 2
[tex]5z - 10 = 5z - 5*2[/tex]
Apply distributive property [Factor out 5]
[tex]5z - 10 = 5(z - 2)[/tex]
[tex](c)\ c - c^2[/tex]
Express c as c * c
[tex]c - c^2 = c - c * c[/tex]
Apply distributive property [Factor out c]
[tex]c - c^2 = c(1 - c)[/tex]
[tex](d)\ r + r+ r+ r[/tex]
Express r as r * 1
[tex]r + r + r + r = r * 1 + r * 1 + r * 1 + r *1[/tex]
Apply distributive property [Factor out 1]
[tex]r + r + r + r = r(1+1+1+1)[/tex]
[tex]r + r + r + r = r * 4[/tex]
[tex]r + r + r + r = 4r[/tex]
[tex](e)\ 2x - \frac{1}{2}[/tex]
Express 2x as 4x/2
[tex]2x - \frac{1}{2} = \frac{4x}{2} - \frac{1}{2}[/tex]
Apply distributive property [Factor out 1/2]
[tex]2x - \frac{1}{2} = \frac{1}{2}(4x - 1)[/tex]
6 in
24 in
I don’t get this at all and I have trouble with math
what's the value of
[tex] = > 25 \times 386 + 3219 \div 2[/tex]
Answer:
11259.5Step-by-step explanation:
25 × 386 + 3219 ÷ 2 = 9650 + 1609.5 = 11259.5Answer:
11259.5
Step-by-step explanation:
25×386+3219÷2
Multiply 25 and 386 to get 9650.
9650+3219/2
Convert 9650 to fraction 19300/2.
19300/2+3219/2
Since 19300/2 and 3219/2 have the same denominator, add them by adding their numerators.
19300+3219/2
Add 19300 and 3219 to get 22519.
22519/2
Divide 22519 by 2 to get 11259.5.
11259.5
In a geometric sequence, the ratio between consecutive terms is?
Select the correct answer.
To help with staffing decisions, the manager of a large grocery store recorded the total number of customers waiting in line at registers each half
hour over a 12-hour period. The data she collected is shown in the graph.
X Customers in Line by Half Hour
40
36
32
28
.
24
Customers
20
16
12
8
4
11:00
a.m.
0
9:00
1:00 3:00
5:00 7:00 9:00
a.m
p.m. p.m. p.m.
p.m.
p.m.
Time of Day
The manager recognizes that the data approximates a transformation of the parent sine function, y = sin(s).
Which value is closest to the midline of the transformed function?
?
OA
14
OB
20
OC. 24
OD. 17
Answer:
24
Step-by-step explanation:
correct on plato