Answer:$59.50
Step-by-step explanation:
15/100*70= $10.50
$70 - $10.50= $59.50
use the graph f(x)=-x^2+8x+20 to determine the values of m for which m= -x^2+8x+m=0 will have two positive roots
Answer:
first root -2 and the second is 10
Step-by-step explanation:
delta=b squared-4ac=64-4(-1)(20)=144>0
then we have 2 +roots
x1= -b+ radical delta/2a =-2
x2=-b - radical delta/2a=10
The value of m for which -x² +8x+m=0 to have two positive roots is m ≤ 0.
What is a polynomial?A polynomial is an expression that involves the addition, subtraction and multiplication of variables.
A quadratic polynomial is a polynomial of degree 2.
Given that:
f(x)=-x² + 8x + 20
To determine the values of m for which -x² +8x+m=0 would have two positive roots
For -x² +8x+m=0 to have two positive roots, m ≤ 0.
The value of m for which -x² +8x+m=0 to have two positive roots is m ≤ 0.
Find out more on polynomial at: https://brainly.com/question/2833285
Find the area of each polygon. Write the
equations and solve showing ALL the work.
a regular hexagon with an apothem of 3 ft
I also need to know what m∠cdb is
Answer:
x = 4
m<cdb = 82
Step-by-step explanation:
The exterior angle thm states that the exterior angle of a triangle is equal to the sum of the opposite interior angles:
7x + 2 + 17x = 98
24x + 2 = 98
24x = 96
x = 4
m<cdb =
y + 98 = 180
y = 180 - 98
y = 82
For every 1 girl in Mr Hegarty's class there are 2 boys. What is the ratio of girls to boys in the class?
Give your answer in its simplest form.
Answer:
1:2
Step-by-step explanation:
For 1 girl there are 2 boys. This means fro 2 girls there would be 4 boys. You use the ratio girls over boys to answer this.
:)
A coffee shop sells 40 regular coffees out of every 120 coffees they sell. Predict how many regular coffees the shop would sell if they sold 960 coffees.
Answer:
320
Step-by-step explanation:
960 ÷ 120 = 8
40 × 8 = 320
Can somebody plz help answer these questions correctly (only if u know how to do it) thx sm! :3
WILL MARK BRAINLIEST WHOEVER ANSWERS FIRST :DDDD
Answer:
<5 = 30
<6 = 60
<BFD = 120
Step-by-step explanation:
Find the mean of the data in the dot plot below. students Size of each of Mr. Sirac's classes + + + + 21 20 22 23 24 25 26 28 27 Number of students Show Calculator Report a Stuck? Watch a video or use a hint.
Assume that θ is an acute angle in a right triangle satisfying the given conditions. Evaluate the 5 remaining trigonometric functions. Sketch a triangle in the correct quadrant and label.
sec θ= 17/15
sin θ<0
Answer: See step by step. Replace the x with theta
Step-by-step explanation: Since sin is less than zero, and secant is positive. This means the trig values are in Quadrant 4.
We know that secФ=17/15. We need to find sin,cos,tan,csc, and cot.
We can find tangent by using the identity
[tex]tan^{2} (x)+ 1=sec^{2} (x)[/tex] where x is theta.
[tex]tan^{2} (x)+1=\frac{289}{225}[/tex]
[tex]tan^{2} (x)+\frac{225}{225} =\frac{289}{225}[/tex]
[tex]tan^{2}(x)=\frac{64}{225}[/tex]
tan x=[tex]\frac{8}{15}[/tex], Tangent in the fourth quadrant is negative so the answer is instead
[tex]tan x= -\frac{8}{15}[/tex]
We can find cotangent by taking the recipocial of tan so
[tex]cot=-\frac{15}{8}[/tex]
We can find cos by taking reciprocal of sec remeber that cosine is positive in 4th quadrant so the answer is
[tex]cos =\frac{15}{17}[/tex]
We can find sin by doing quoteint identies.
[tex]\frac{sin x}{cos x} =tan x[/tex]
[tex]\frac{ sin x}{15/17} =-\frac{8}{15}[/tex]
[tex]sin x= -\frac{8}{17}[/tex]
To find csc, take reciprocal of sine.
[tex]csc=\frac{-17}{8}[/tex]
r= 17 cm
Please help I’ll mark Brainlest
Answer:
1. r = 2.5 mm
2. r = 12ft
3. d = 34 cm
for 4-6 you use 2(pi) r
4. 25.1 ft
5. 40.8 cm
6. 22 mi
Answer is below. Look at the explanation in order to understand my answer.
To find the diameter, you'll have to get the radius in order to solve the diameter.
Since you said r = 17cm, we should be solving for diameter.
The formula is d = 2r
R will represent the radius.
You'll multiply the 2 by the radius.
Like i've said, R will represent the radius. The radius is 17.
With that being said, we can do the math.
The formula will be: d = 2r → d = 2 × 17
2 times 17 is 34.
The diameter would be 34.
Let me know of question or concerns about my answer.
pamela is 10 years older than Jiri. the sum of their ages is 76. what is jiri age
Answer:
jiri's age is 66 years old
Step-by-step explanation:
76-10= 66 years old
A quadratic function has one zero (x-intercept) at x = -5 and another zero at x = 3. What is the equation of the axis of symmetry of this function?
Answer:
x = - 1
Step-by-step explanation:
The axis of symmetry is a vertical line located at the midpoint of the zeros.
Equation is then
x = [tex]\frac{-5+3}{2}[/tex] = [tex]\frac{-2}{2}[/tex] = - 1 , that is x = - 1
Barry and Bernice have obtained a 30-year, fixed rate mortgage for $635,250 with a 7.35% interest rate. They purchased 2 points and their rate is now 6.925%. Factoring in the cost of points, when is the break-even point on their mortgage?
2 years, 11 months
3 years, 11 months
5 years, 10 months
2 years, 4 months
John es mariscal de campo. Este año completo 350 pases, que representan 70% de todos los pases que lanzó este mismo año
Answer:
245
Step-by-step explanation:
70% =.07
350 × .07 =245
In a park, a sidewalk is built around the edge of a circular garden as shown. The sidewalk is 5 feet wide, and the garden measures 10 feet across. Which measurement is closest to the circumference of the outer edge of the sidewalk?
Answer:
63 feet.
Step-by-step explanation:
The total diameter of the circular garden is given by 5ft+ 10 ft + 5 ft= 20 feet
As the circumference of the circle = 2πr where r = radius obtained by dividing the diameter by 2. Here the diameter = 20 feet and r= d/2 = 20/2 = 10 feet
Putting the values in the circumference formula
Then C= 2(22/7) (10)= 62.85 feet
Rounding gives almost 63 feet .
what is (0,3) given a slope of -2, in slope intercept form
Answer:
y=-2x + 3
Step-by-step explanation:
Answer:
y=-2x + 3
Step-by-step explanation:
(0,3) is the y intercept and
-2 is the slope
ANSWER FAST NO LINKS OR BAD RANDOM ANSWER OR YOU WILL BE REPORTED! Thank you, marking brainliest!
Answer:
48+25.12=73.12
Step-by-step explanation:
6 baked a cake forty eight
8*4/2=16
Answer: 73.12in
Step-by-step explanation:
In which pair is the value of Expression A two times the value of Expression B?
A.
Expression A: 3 × (55 + 21)
Expression B: 3 × (22 1/2 + 21)
B.
Expression A: (75 + 23)
Expression B: (75 + 23) × 2
C.
Expression A: (44 + 32) × 8
Expression B: (44 + 32) × 4
D.
Expression A: (3 × 55) + 42
Expression B: (3 × 55) + 21
Answer:
C
Step-by-step explanation:
Enter the value of the exponential expression 5 to the power 0
Answer:
1
Step-by-step explanation:
5^0 = 1. Any base to the power 0 returns the value 1.
What is another way that you could write the ratio of pennies to quarters?
Answer:
1/100 to 25/100
or
0.01 to 0.25
Step-by-step explanation:
Pennies are also known as one per cent. Cent refers to 100 and pennies are called one per cent because they value 1 out of 100. 100 pennies equal one dollar.
Similarly, one quarter is 1/4 of a dollar and 1/4 equals 25/100 when multiplying the numerator and denominator by 25.
help pleaseeee i dont get this also show work
Answer:
AC = 2
BC = [tex]2\sqrt{2}[/tex]
CD = 4
CF = 4
BD = [tex]2\sqrt{2}[/tex]
DE = 8
EF = [tex]4\sqrt{2}[/tex]
DF = [tex]4\sqrt{2}[/tex]
Step-by-step explanation:
Since all of these are isosceles triangles, it means both legs of every triangle are congruent to each other. So,
Given: AB = 2
Find:
AC = AB = 2
BC = [tex]2\sqrt{2}[/tex]
CD = 4
CF = CD = 4
BD = BC = [tex]2\sqrt{2}[/tex]
DE = 8
EF = [tex]4\sqrt{2}[/tex]
DF = EF = [tex]4\sqrt{2}[/tex]
Prepare depreciation schedules using Straight-Line, Units-of-Production, and Double-Declining Balance Depreciation.
Answer:
f
Step-by-step explanation:
f
Question and answer in photo... also no links... if you do i get administrator
keeping it plain and simple... DO NOT USE LINKS... AS ANSWERS OR ONE THAT IS AN ANSWER... could have a virus
ANSWER TODAY
Ω Entity001 And Project Omega Ω
other Brainly questions i have today that also need answering:
brainly.com/question/22829066
brainly.com/question/22828757
EXAMPLE OF WHAT NOT TO TRUST BELOW:
Kyuubivi
Beginner
1 answer
6 people helped
Answer is in a photo. I couldn't attach it here, but I uploaded it to a file hosting. link below! Good Luck!
bit.ly/3mCQlPZ
its not allowing me to send it. can i send somewhere else?
Step-by-step explanation:
The mean of data set A is 42. The mean of data set B is 47. The mean absolute deviation (MAD) of both data sets is 25. What is the difference of the
means as a multiple of the MAD?
The difference of the means is.......? times the MAD
HELP!
Answer:
The difference of the means is 2 times the MAD
Step-by-step explanation:
Mean of data set A = 42
Mean of data set B = 47
MAD of both data sets = 2.5
Difference of their means = 47 - 42 = 5
Thus, the difference of their means = 2 × the MAD
= 2 × 2.5 = 5
Therefore:
The difference of the means is 2 times the MAD
1/4-x<2x+1 what does x equal?
Answer:
Mark me as brainliest
and zoom in
If you have complementary angles and one angle is 83°, what is the other angle?
Answer:
7 degrees
Step-by-step explanation:
90-83=7
Answer:
7 degrees
Step-by-step explanation:
complementary angles are equal to 90
the straight line L has an equation y=1/2x+7. The straight line m is parallel to L and passes through the point (0,3). Write down an equation for the line M.
Answer:
y = x + 3
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
y = x + 7 ← is in slope- intercept form
with slope m =
Parallel lines have equal slopes
line M crosses the y- axis at (0, 3) ⇒ c = 3
y = x + 3 ← equation of line M
FOUND THIS ON THIS APP SO IM NOT 100% SURE THIS IS THE RIGHT ANSWER
4. Frank lives 1/2 blocks east of Mary. Mary lives 3/5 blocks east of school.
How many blocks east of school does frank live? *
Answer:
1 and 1/10 from the school
3/5=6/10
1/2=5/10
6/10+5/10= 11/10
11/10=1 1/10
Assume a Zip Line is a straight line. The coordinates of the line are (-7,8) and (2,-3), what is the slope of the line? (Leave your answer as a fraction
Answer:
Hi! The answer to your question is m = -[tex]\frac{11}{9}[/tex]
Step-by-step explanation:
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Hope this helps!!
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I'm stuck on this problem! A linear function that represents the number of video games purchased at an electronics store is compared to a different linear function that represents the amount of money the store made that day. Describe the key features of the functions that are needed to determine if these lines intersect.
Answer:
In order two straight lines in a coordinate plane intersect, they MUST have different slopes.
This condition is NECESSARY and SUFFICIENT.
Step-by-step explanation:
The key feature of the functions that are needed to determine if the lines intersect are;
The slope; rate of changeThe y-interceptSlope and y-interceptFrom straight line geometry, we can conclude that two parallel lines whose slope are equal can never intersect.
On this note, for the functions described in the question, the functions only intersect when the slopes are different.
Additionally, the functions may intersect in the event of having equal y-intercepts.
Read more on slope and y-intercept;
https://brainly.com/question/25722412
Felipe built a rectangular rainwater collection tank in his garden that is 5 ft long and 3 ft wide. The volume of the tank is 75 cubic ft.
What is the height of his rainwater collection tank?
Answer:
5ft
Step-by-step explanation:
Volume = length x width x height
5 x 3 x h = 75
15h = 75
h = 5
