Answer:
d = 3 and d = 3/4
Step-by-step explanation:
This is a quadratic eqution. Let's use the quadratic formula to solve it.
If ax^2 + bx + c = 0, then:
-b ± √(b^2 - 4ac)
x = ---------------------------
2a
With a = 4, b = -15 and d = 9, we have:
-(-15) ± √(225 - 4(4)(9) ) 15 ±√81 15 ±9
d = ------------------------------------ = -------------- = -------------- = 24/8 and 6/8
2(4) 8 8
Simplifying these results, we get d = 3 and d = 3/4
help pls, I'm timed!
Answer:
90
Step-by-step explanation:
What is the answer of R4 × 38
Answer:
38r^4 ( I hope this was helpful) >;D
pls answer asap!!ty!!
Please label the missing angles below.
Answer:
Triangle A: 38 degrees
Triangle B: Unknown (not enough information)
Triangle C: Unknown (not enough information)
Triangle D: 70 degrees
Triangle E: 40 degrees
Step-by-step explanation:
Work for Triangle A: 90 + 52 = 142. 180 - 142 = 38.
Work for Triangle B: Unidentifiable because there is no indicator to tell you if any of the angles/lines are equal. Generally there will be a "double lined" indicator in the corners of which a triangles angles are equal.
Work for Triangle C: Same as B.
Work for Triangle D: 90 + 20 = 110. 180 - 110 = 70.
Work for Triangle E: 90 + 50 = 140. 180 - 140 = 40.
Which of the following situations are equal to 40%? Select all that apply.
A) 5 out of 20
B) 6 out of 15
C) 10 out of 25
D) 45 out of 90
E) 32 out of 80
Simply the following
-2+3(1-4)-2
Answer:
- 13
Step-by-step explanation:
Given
- 2 + 3(1 - 4) - 2 ← evaluate parenthesis
= - 2 + 3(- 3) - 2 ← perform multiplication
= - 2 - 9 - 2
= - 13
Step-by-step explanation:
solution
= -2+3(3)-2
=-2+3*3-2
= -2+9-2
=-11-2
= -9
What is the difference between a wheel and a roller?
(x-1) (x+2) (x-3)= muszę wykonać działanie wyznaczyć iloczyn
Answer:
x^3-2x^2-5x+6
Step-by-step explanation:
11x + 4y = 32
x = -2y - 2
What is an equation of the line that passes through the points (-6,-5) and (-3,0)?put your answer in fully reduced form
Step-by-step explanation:
The equation is y = -3x + 6.
Answer:
3y = 5x + 15
Step-by-step explanation:
Slope = Change in y-cordinates
---------------------------------
Change in x-cordinates
= 0 - (-5)/-3 - (-6)
= 5/3
Using point (-3,0)
y - y1 = m(x - x1)
y - 0 = 5/3 (x - (-3))
y = 5/3 (x + 3)
Expand the bracket
y = 5x/3 + 15/3
Multiply through by 3
3y = 5x + 15
pleaseeeee I needdd help, please
find x value using the quadrants
sinx = ( - sin²x + cos²x)
Answer:
Step-by-step explanation:
sin²x+cos²x = 1. No Matter What is the value of x. For Explanation: Sin x is opposite_side/hypotenuse of a Right angle triangle. Cos x is adjacent_side/hypotenuse of a Right angle triangle.
hi please help i’ll give brainliest
Answer:
3
Step-by-step explanation:
3 x (2) - (3)
find the value of the slope and the type of slope
Answer:
-5
Step-by-step explanation:
Each time the x value goes up 1, the y value goes down 5.
change in x = 1
change in y = -5
slope = (change in y)/(change in x)
slope = -5
Answer:
-five
Step-by-step explanation:
rise over run
Solve for k, the constant of variation, in an inverse variation problem where y=17 x=6
Answer:
k=102
Step-by-step explanation:
hope this helps with your assignment
Select the correct volume formula for a cone.
Answer:
1/3 pie r square h ( 2nd option)
Step-by-step explanation:
b. How many hours will Max have to work if he wants to earn $186?
Max must work
hours if he wants to earn $186.
Answer:
Step-by-step explanation:
How are we supposed to know bcuz we dont know how much he is getting an hour so i cant help u sorry you gave us barely any info
Please please asap!!
Answer:I don't know this one
Step-by-step explanation:
Which equation, when graphed, has x-intercepts at (8,0) and (-2, 0) and a y-intercept at (0, -48)?
f(x) = -3(x – 8)(x + 2)
f(x) = -3(X + 8)(x - 2)
f(x) = 3(x-8)(x + 2)
O f(x) = 3(X + 8)(- 2)
Answer:
f(x)=-3(x-8)(x+2)
Step-by-step explanation:
f(8)=-3(8-8)(8+2)=-3×0×10=0
f(-2)=-3(-2-8)(-2+2)=-3×(-10)×0=0
f(0)=-3×(0+8)×(0+2)=-3×8×2=-48
Matteo spends a total of 38 min exercising. He walks for 6 min to warm up and then runs at a constant rate of 8 min per mile for the rest of the time. Matteo says that he ran 4.75 mi. Is he correct?
Answer:
No, he not correct because he only ran 4 mi
Step-by-step explanation:
If he walks for 6 min out of the 38 min, then he ran for 32 min.
d = rt 1 mi = 8r
r = 1/8 = 1 mi/8 min Since he ran 32 min we have
d = 1/8(32) = 4 mi.
No, he not correct because he only ran 4 mi
i
x+2y=-1
y=-3x - 8
Help please
Answer:
x= -3 y =1
Step-by-step explanation:
QUICK QUICK QUICK 7 MINUTE
Answer:
p is the answer!!!!!!!!!!!!!
Franco earns $8 per hour at his after-school job. Last week, he received a paycheck of more than $168. If he worked for h hours that week, find all the inequalities that represent this situation.
a.) 8 x h > 168
b.) 8 > 22 x h
c.) 8 x h < 168
d.) h > 21
e.) h < 21
Answer: A and D
Step-by-step explanation:
if he earns $8 an hour and he got $168 and h= the hours then
h=8 x 21 = 168
Answer:
The other person is correct.
Step-by-step explanation:
Simplify by combining like terms and then FACTOR the expression -3+5y+5+3y
Answer:
7y+2
Step-by-step explanation:
3y+5y=7y
5-3=2
ADD NOTE
QUESTION GUIDE EXIT TEST
3. A wedge of cheese is in the shape of a triangular prism. The dimensions of the wedge
are shown below.
30.5 cm
TAAR
as olles
em Readiness
16 cm
12 cm
20 cm
What is the volume of the wedge of cheese?
What is the next number in this sequence? 2, 16, 128, 1024, ___________
Explain what you did to get your answer.
3. STOCK A computer stock lost 2 points
each hour for 6 hours. Find the total
points the stock fell.
Answer:
12
Step-by-step explanation:
if you add up 2, 6 times it would be 2,4,6,8,10,12
or you would multiply the 2 assuming that there was no number to subtract 2 six times from to start
plz besties can you help me
a) show that k lies between - 8 and 1 in the following inequality
[tex] {k}^{2} + 7k \leqslant 8[/tex]
Answer:
-8≤k≤1
Step-by-step explanation:
k²+7k-8≤0
(k+8)x(k-1)≤0
k1= -8
k2= 1
-8≤k≤1
11. Wilson bought a bus ticket to travel 22 miles to his friend's house. The ticket price was $5.00
for the first 10 miles and $0.50 for each additional 1/2 mile.
How much did Wilson pay for his bus ticket?
A $11.00
B. $14.50
C. $17.00
D. $22.00
Answer:
A
Step-by-step explanation:
22-10=12
total cost=5+12×0.50
=5+6
=11 $
Graph f(x) = 2x - 1. Which of the following graphs is correct?
Answer:
there are no choices
Step-by-step explanation:
You and your friend were working the ticket table at the last school basketball game.
The tickets sold for $5 for adults and $3 for students.
A total of 375 people attended the
game and a total of $1375 was taken in at the ticket table. How many adult tickets were
sold and how many student tickets were sold?
Answer:
Step-by-step explanation:
First
a+s=375
a=375-s
Next
5a+3s=1375, now using a found above makes this equation become
5(375-s)+3s=1375
1875-5s+3s=1375
1875-2s=1375
-2s=-500
s=250, since a=375-s
a=375-250
a=125
So 125 adult and 250 student tickets were sold.
pls help ill give brainliest. the red isnt part of it was just how it was screenshot.
Find the area of a circle with 7cm radius .
Use the value 3.14 for π, and do not round your answer.
Be sure to include the correct unit in your answer.
Answer:
153.9
Step-by-step explanation:
hope it helps