find the solutions to the equation below. 20x^2 - 26x + 8 = 0
Check all that apply.
A. x = 4/5
B. x = 1/5
C. x = 2/3
D. x = 3/5
E. x = 1/2
F. x = 1/4
Answers
Related Questions
Seven more than twice a number is 7
Answers
Answer:
0
Step-by-step explanation:
0 × , or 0² is 0, and 0 + 7 is 7. Hope this helps!
for a certain online store, the distribution of number per hour is approximately normal with mean 1200 purchases and standard deviation 200 purchases. for what proportion of hours will the number of purchases at the online store exceed 1400?
a)5%
b)68%
c)16%
d)32%
Answers
Answer: 16%
Step-by-step explanation:
When we have a normal distribution, the 100% of our sample will be placed in a "gaussian bell".
Where the middle of this bell coincides with the mean.
The mean, in this case, is 1200, and the standard deviation is 200.
In the image below you can see that between the points.
Mean + standard deviation and the end of the graph, we have:
13.5% + 2.35% + 0.15% = 16%
And particularly, if we want to know the percentage that exceed 1400, will be the same percentage above the mean plus the standard deviation.
mean = 1200
SD = 200
mean + standard deviation = 1200 + 200 = 1400.
Then the percentage that exceeds 1400 is equal to the percentage that we found above, then the correct option is C: 16%
HELP ME SOLVE!!! I'm horrible with fractions :(
Answers
Karla will walk her bike at a speed of 6 mile/hour from her house to the bike
shop, which is 2.5 mi from her house, to get the bike fixed. She expects to
wait 30 min for the repair. Then she will return home by riding her bike at a
speed of 15 miles/hour. How long will the entire trip last? *
A. 1.30 hours
B. 1.50 hours
C. 0.50 hour
D. 1.08 hours
Answers
Answer:
D. 1.08 hours
Step-by-step explanation:
Speed = distance / time
Going to the bike shop
speed = 6 mile/hour
Distance = 2.5 mi
Time = t
Speed = distance / time
6 = 2.5 / t
Cross product
6t = 2.5
Divide both sides by 6
t = 2.5/6
= 0.417 hour
She waited for 30 minutes for the repair, that is 0.5 hour
Going back home
Speed = 15 miles/hour
Distance = 2.5 mi
Time = t
Speed = distance / time
15 = 2.5 / t
Cross product
15t = 2.5
Divide both sides by 15
t = 2.5 / 15
= 0.167 hour
Total time of the entire trip =
0.417 hour + 0.5 hour + 0.167 hour
= 1.084 hour
Approximately 1.08 hour
The correct answer is D. 1.08 hours
The m∠P is three less than twice the measure of ∠Q. If ∠P and ∠Q are supplementary angles, find the measures of both angles.
Answers
Answer:
m∠P =119
m∠Q = 61
Step-by-step explanation:
m∠P = 2(∠Q)-3 or p=2(q)-3
supplementary angles so they combine to equal 180!
soooooo we can take
q+p=180
input what p equals and you get
q+ 2(q)-3=180
3q-3=180
3q=183
q=61
now we have what m∠Q is, so just subtract that from 180 to get m∠P
180-61=119
How old was Sarah x years ago if she is now 23?
Answers
Answer:
23 - x
Is that all there is to the problem?
Answer:
23 - x
Step-by-step explanation:
The metal in a penny is about 0.505 cents. How many cents is this written as a fraction in simplest form?
Answers
Consider the these two linear equations:
10x + 5y = 90
y = ax + 18
What value of a will make the two lines parallel?
Answers
Answer:
a = -2
Step-by-step explanation:
The first equation can be rewritten in slope-intercept form:
5y = -10x +90
y = -2x +18
The value a=-2 will make the second line identical to the first.
I need help with this ASAP!!!
Answers
Answer:
Step-by-step explanation:
12.5= 25/2
Ln (25/2).. change decimal to fraction
Ln ((5^2)/2)...change 25 to 5^2
(2ln 5)/2... log rule.. move exponent to the front
Ln 5 .. . Simplify the top and bottom 2's
find the cube of 2/3
Answers
Answer:
8/27
Step-by-step explanation:
[tex] \huge \bigg( \frac{2}{3} \bigg)^{3 } = \frac{ {2}^{3} }{ {3}^{3} } = \frac{8}{27} \\ [/tex]
What is the probability of a spinner stopping on Y?
Answers
Answer:
Step-by-step explanation:
1/8.
There is. One Y and 8 choices
What is the best way to determine the graph of a situation?
Answers
Answer:
iys answer can be
by drawing
I need help with this
Answers
Answer:
90°
Step-by-step explanation:
5x+20=9x
20=4x
5=x
<DEG=5x+20+9x=5(5)+20+9(5)=25+20+45=90
-10|b-4| <-10
Solve the inequality
Answers
Answer:
b>5 or b<3
(i hope this helps)
I need help with this
Answers
Answer:
I think it's 18 don't quote me on it.
Step-by-step explanation:
Mrs. Wheeler is finishing a craft and needs a piece of yarn that is 5.4 feet long. If Mrs. Wheeler has 54 inches of yarn, she __________. A. has enough yarn because 54 inches is 18 feet of yarn B. has enough yarn because 54 inches is 5.4 feet C. does not have enough yarn because 54 inches is 0.54 feet of yarn D. does not have enough yarn because 54 inches is 4.5 feet of yarn
Answers
Answer:
D
Step-by-step explanation:
ello
-_-
Is the table discrete or continuous
Answers
Natalie has 27 aples to give to her classmates,she give away 12 to the boys in her class and 15 to the girls in her class. How many aples does natalie have left?
Answers
Answer:
Natalie has zero apples left because she gave 27 away
Step-by-step explanation:
hope it helps
A bowling alley charges $8 for shoes and $3 per game Claire brought $20 what inequality describes this
Answers
Answer:
20 > 8+3g
Step-by-step explanation:
The width of a rectangle is 5 feet less than the length. The perimeter is 62. Find the length and width of the rectangle.
Variables: ___________________________
Model equation: ______________________________
Length of the rectangle: ______________________________
Width of the rectangle: ______________________________
Answers
Perimeter formula: p = 2(w + l)
The perimeter is 62.
p = 62
The width of a rectangle is 5 feet less than the length.
w = l - 5
Substitute and solve.
62 = 2[(l - 5) + l)]
62 = 2l + 2l - 10
62 = 4l - 10
72 = 4l
18 = l
Substitute and solve for the width
w = 18 - 5
w = 13
Therefore, the length is 18 and the width is 13.
Best of Luck!
Answer:
see below and attached.
Step-by-step explanation:
Perimeter (P) = 2 L (Length) + 2 W (Width)
where P = 62
W = L - 5
P = 2L + 2W
62 = 2L + 2(L -5)
62 = 2L + 2L - 10
72 = 4L
L = 72/4
L = 18
W = L - 5
W = 18 - 5
W = 15
Variables : P, L, W
Model equation: P = 2L + 2W
Length of the rectangle: 18
Width of the rectangle: 13
I REALLY NEED ANSWERS NOW!!
1. Gerry and Jane okay a trivia game. Gerry's score is -17 and Jane's score is -24. What is the difference between Gerry's score and Jane's score
Answers
Answer:
7
Step-by-step explanation:
24-17= 7
therefore
the difference between -17 &-24 is also 7
Given h(x) = 3x - 3, find h(3).
Answers
Answer:
6.
Step-by-step explanation:
h(x) = 3x - 3
h(3) = 3 * 3 - 3 = 9 - 3 = 6.
Hope this helps!
I need a response thank u if u help me
Answers
Answer:
A, B, & C
Step-by-step explanation:
A) More students play soccer for 2/4 of an hour than any other amount of time. TRUE
B) More students play soccer for 1 hour than for 0 hours. TRUE
C) 8 students play soccer for 2/4 of an hour or more. TRUE
D) The least common response was 0 hours. FALSE
E) 4 students play soccer for 1/4 of an hour. FALSE
Evaluate when a = 8 and b = -4 a(a - b) ÷ (a + b) A) -12 B) 8/3 C) 10 D) 24 what the answer
Answers
Answer:
Step-by-step explanation:
a = 8 and b = -4 a(a - b) ÷ (a + b)
A) -12
B) 8/3
C) 10
D) 24
ANSWER IS D) 24
Can someone help me solve this fast??
Answers
Answer:
[tex]x=7[/tex]
Step-by-step explanation:
[tex]\sqrt{3x+8}=\sqrt{4x+1}[/tex]
Square both sides:
[tex](\sqrt{3x+8})^{2} =(\sqrt{4x+1})^{2}[/tex]
[tex]3x+8=4x+1[/tex]
Subtract 8 from both sides:
[tex]3x+8-8=4x+1-8[/tex]
[tex]3x=4x-7[/tex]
Subtract 4x from both sides:
[tex]3x-4x=4x-7-4x[/tex]
[tex]-x=-7[/tex]
Divide both sides by -1:
[tex]\frac{-x}{-1}=\frac{-7}{-1}[/tex]
[tex]x=7[/tex]
WILL MARK YOU BRAINLIEST JUST GIVE THE ANSWER!!
Answers
Answer :
Step-by-step explanation:
its the second option
Francis did this work to solve an equation. Did he make an error?
3x = 10 - 2x
-2x
-2x
x = 10
Answers
Answer:
Yes he did. The error is that you are supposed to add 2x to 3x to get 5x. So 5x = 10, x = 2
Step-by-step explanation:
A map scale compares a map distance with?
Answers
Answer:
RATIO
Step-by-step explanation:
A bakery used 61/4 cups of flour this morning to make 5 batches of cookies how much flour went into each batch of cookies ?
Answers
Answer:
15.25 cups per batch
Step-by-step explanation:
Given h(x) = 3x - 9
Find the value of q such that h^2(2q/3) = 36
I will make you the brainliest
Answers
Answer:
q= (9,-9)
Step-by-step explanation:
Evaluate
h^2(2(q/3))
then set it equal to
36
Hope this helps!
