Answer:
-1 ± i√7Step-by-step explanation:
x² + 2x + 7 = 0D = 2² - 4*7 = 4 - 56 = -52x = (-2 ± √-28)/2 = (-2 ± 2√-7)/2 = -1 ± i√7Arrange the following in descending order: 1/5,3/7,7/10
Answer:
7/10 - 3/7 - 1/5
Step-by-step explanation:
3/7-7/10-1/5
Step-by-step explanation:
helppppppppppppppppp
The equation of the cables for a suspension bridge is modeled by the equation
y-48 = 0.0025x2, in feet. How far is the lowest point of the cables above the bridge?
The lowest point of the cables is
feet above the bridge.
The lowest point of the cables above the bridge is 48 feet above the bridge.
The statement give us a parabola equation in standard form, the vertical distance of the lowest point above the bridge is determined by the y-coordinate of the vertex. Hence, the lowest point of the cables above the bridge is 48 feet above the bridge.
We kindly invite to check this question on parabolae: https://brainly.com/question/8495869
Miss Weight's recipe for Soup calls for
1 1/4 teaspoons of salt. She wants to
use 1/2
that amount. How much salt
Will she use?
Answer: 5/8 of a teaspoon of salt
Step-by-step explanation:
half of 1 is 1/2 or 4/8
half of 1/4 is 1/8
4/8 + 1/8 = 5/8
Find the slope of the line that passes through (10,10) and (1,2)
Answer:
8/9
Step-by-step explanation:
[tex]m = \frac{10 - 2}{10 - 1} = \frac{8}{9} [/tex]
6) Which numbers are irrational?
7.27, 5/9, square root of 15 , square root of 196
Answer:
The square route of 15 is irrational
pls help me with this if you can
1) Let L = the larger # and S = the smaller #.
A large # is 5 more than twice a smaller #.....This gives Eq 1) L = 5 + 2S
Their sum is 80...This gives Eq 2) L + S = 80.
Substitute Eq 1) into Eq 2), you get
L + S = 80
5 + 2S + S = 80
3S = 75
S = 75 / 3 = 25
L = 5 + 2S
= 5 + 2(25)
= 5 + 50
= 55
-----------------------------------------------------------------------------------------------------------------
2) [-7,2)
- Vocabulary
· Interval
A set of values between two endpoints.
· Inequality
A mathematical expression which shows that two quantites are not equal.
Answer:
1) x = 25
2) 2(25)+5 = 55
-12<= x < 6
x <2 and x <= -7
Step-by-step explanation:
1) x
2) 2x + 5
x + 2x + 5 = 80
3x = 80 - 5
x = 75/3
x = 25
-24 <= 2x - 10
-24+10 <= 2x
-14/2 <= x
-7 <= x
2x -10< -6
2x < - 6 + 10
x < 4/2
x < 2
For brainily please help
Answer:
FH is the smallest side.
Step-by-step explanation:
This is called the relation between angles and sides where the smallest angle will have the smallest side opposite one another.
That means if measure G is the smallest then FH is the smallest side as FH is the opposite of measure G.
You can also say GH is the biggest or largest side since GH is opposite of measure F and measure F has the biggest angle.
So, FH is the smallest.
If 1 1/4 kilo of meat is 320 pesos. How much will it need to purchase 5 1/2 kilos of meat?
Answer:
450 pesos
Step-by-step explanation:
5 kilograms is equal to 400 pesos.
5/12 would be 450 pesos.
What is the standard form of function f?
f(x)=4(x+6)+5
Substitute numerical values into the equation for a, b, and c.
Answer:
A = 4; B = -1 ; C = -29
Step-by-step explanation:
y = 4(x + 6) + 5
y = 4x + 24 +5
y = 4x + 29
Standard form: Ax + By = C
4x - y = -29
Answer:
Step-by-step explanation:
Hope this Helps ;)
9x + 7
Verbal
Expression
Need help on the 2 questions ASAP and SHOW WORK PLEASE !!!! 50 points ????
Answer:
-4 - 8-=-4
Step-by-step explanation:
wiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiii
Are you talking about the console Wii
if so yeah there pretty good
Answer:
Sports
Step-by-step explanation:
how do i do it?can someone help
Answer:
2
Step-by-step explanation:
(4/3)^10 * (3/4)^6
Here lefts (4/3)^4
May I please receive help?
Parallel lines have the same slope, while perpendicular lines have an opposite reciprocal slope.
Line 1:
-5y = 3x + 7
y = -3/5x - 7/5
Line 2:
y = -5/3x + 8
Line 3:
6x - 10y = -4
-10y = -6x - 4
y = 3/5x + 2/5
Line 1 and Line 2 are neither perpendicular nor parallel. While their slopes are reciprocals of each other, the signs are not opposite (both are negative).
Line 1 and Line 3 are neither perpendicular nor parallel. While the slope itself is the same, the signs are different.
Line 2 and Line 3 are perpendicular. Their slopes are opposite reciprocals of each other.
Hope this helps!! :)
Help
help please please
Answer:
1. A
2. C
Step-by-step explanation:
I could be wrong, that's my best guess. Im so sorry if im wrong, have a good day
Multiply.5/9 3/10 Express your answer in the simplest form.
1 23/27 15/90 1/4 1/6
Step-by-step explanation:
5/9×3/10= 15/90 simplification is 1/6
the correct is 1/6
Answer:
The 4th answer is correct
Step-by-step explanation:
[tex]\frac{5}{9} *\frac{3}{10} \\\\[/tex]
[tex]\frac{5*3}{9*10}[/tex]
[tex]\frac{15}{90}[/tex]
Now you can make the answer as the simplest form divide both sides by 15
[tex]\frac{15}{90} =\frac{1}{6}[/tex]
ANSWER IS,
[tex]\frac{1}{6}[/tex]
Hope this helps you.
Let me know if you have any other questions :-)
I really need help in this, please I keep getting links! help asap. (20 points)
Allen is showing his work in simplifying –8.3 + 9.2 – 4.4 + 3.7. Identify and explain any errors in his work or in his reasoning. Write feedback to Allen explaining the mistake he made and how to correct his work.
Step Work Reasoning
−8.3 + 9.2 − 4.4 + 3.7 Original problem
1 −8.3 + 9.2 + 4.4 + 3.7 Additive inverse
2 −8.3 + 4.4 + 9.2 + 3.7 Commutative property
3 −8.3 + (4.4 + 9.2 + 3.7) Associative property
4 −8.3 + 17.3 Simplify
5 9 Simplify
Answer:
0.2
Step-by-step explanation:
There are 3 boxes. One of them contains gold.
In each box, there is a message, and one of them is true.
Box 1. "The gold is not in Box 2".
Box 2: "The gold is in this box".
Box 3: "The gold is not in this box".
Which box has the gold?
Since only one box contains gold, then the gold must be in Box 2.
Let's analyze the statements in each box:
Box 1 says, "The gold is not in Box 2." If this statement is true, it means the gold cannot be in Box 2.
Box 2 says, "The gold is in this box." If this statement is true, it means the gold must be in Box 2.
Box 3 says, "The gold is not in this box." If this statement is true, it means the gold cannot be in Box 3.
Now, let's consider the possibilities:
If Box 1 is true, then the gold is not in Box 2 (as stated in Box 1), and it is also not in Box 3 (since Box 3 would be false, and only one box contains the gold).
As per Box's 1 statement, the gold is not in Box 2.
If Box 3 is true, then the gold is not in Box 3 (as stated in Box 3), and it is also not in Box 2 (since Box 2 would be false, and only one box contains the gold).
Therefore, the gold must be in Box 1.
To learn more about the puzzle tests;
https://brainly.com/question/28681162
#SPJ3
A shipment of sugar fills 2 4/5 containers. If each container holds 2 3/7 tons of sugar, what is the amount of sugar in the entire shipment?
Write your answer as a mixed number in simplest form.
Answer:
6 4/5 tonsStep-by-step explanation:
Multiply the number of containers by the amount in each to find the total amount of sugar:
2 4/5 * 2 3/7 = 14/5 * 17/7 = 2*17/5 =34/5 = 6 4/5Express (2+3)
as a trinomial in simplest form,
Answer:
A trinomial is an algebraic equation composed of three terms and is normally of the form a[tex]x^{2}[/tex] + bx + c = 0, where a, b and c are numerical coefficients. The number “a” is called the leading coefficient and is not equal to zero (a≠0). For instance, x² − 4x + 7 and 3x + 4xy – 5y are examples of trinomials.
Step-by-step explanation:
Please recheck your question.
Rationalise the denominator of: -7/(√11 - √5)
[tex] \sf \underline{ \red{Solution - }} \\ [/tex]
Given,
[tex] \sf{\quad { \dfrac{-7}{\sqrt{11} - \sqrt{5}} }} \\ [/tex]
The denominator is √11 - √5.
We know that
Rationalising factor of √a-√b is √a+√b.
Therefore, the rationalising factor of √11-√5 is √11+√5.
On rationalising the denominator them
[tex] \longrightarrow \sf{\quad { \dfrac{-7}{\sqrt{11} - \sqrt{5}} \times \dfrac{(\sqrt{11} + \sqrt{5})}{(\sqrt{11} + \sqrt{5})} }} \\ [/tex]
Multiplying (√11 + √5) with both the numerator of the fraction.
[tex] \longrightarrow \sf{\quad { \dfrac{-7(\sqrt{11} + \sqrt{5}) }{(\sqrt{11} - \sqrt{5})(\sqrt{11} + \sqrt{5})} }} \\ [/tex]
Performing multiplication in the numerator and by using identity (a + b)(a - b) = a² - b², solving further in the denominator.
[tex] \longrightarrow \sf{\quad { \dfrac{-7\sqrt{11} -7\sqrt{5}}{(\sqrt{11})^2 - (\sqrt{5})^2} }} \\ [/tex]
Writing the squares of the numbers in the denominator.
[tex] \longrightarrow \sf{\quad { \dfrac{-7\sqrt{11} -7\sqrt{5}}{11 -5} }} \\ [/tex]
Performing subtraction in the denominator.
[tex] \longrightarrow \quad \underline{ \boxed{ \dfrac{ \textbf{ \textsf{-7 }}\sqrt{ \textbf{ \textsf{11 }}} - \textbf{ \textsf{7}}\sqrt{ \textbf{ \textsf{5 }}}}{ \textbf{ \textsf{ 6}}}} } \\ [/tex]
Hence, the denominator is rationalised.
Please HELPPPPPPPPPP
Answer:
1.3
2.6
3.24
Step-by-step explanation:
Hope it helps
hhhhhhhhhhheeeeeeeeeeeelllllllllllllpppppppppp
Answer:
angle 4 is the alternate angle
Answer: (A) angle 1
Step-by-step explanation:
HURRY PHOENIX! Hey Phoenix It's worth 100 points!
What should the following equation be multiplied by to eliminate the decimals? -200k – 3.01 = 3.3
100
10
2
20
10
3.3×10= 33
Hope this helped you- have a good day bro cya)
A line with a slope of 2 passes through the point (-8, 2). What is its equation in
point-slope form?
Hello!
y-y1=m(x-x1)
y-2=2(x-(-8)
y-2=2(x+8)
And that's our equation in point-slope form. Hope this helps!
~Just a joyful teen
[tex]SilentNature\\(GraceRosalia)[/tex]
A recent report found that a local creamery has a 35% market share in a certain region. Employees in the marketing
department of the creamery conduct a survey to confirm the results by randomly selecting 300 residents from the regon
The employees asked the question which brand of ice cream do you usually purchase to each resident Use a normal
approximation to calculate the probability that at most 80 of these people will choose the creamery's brand. Use a T1-83,
83 plus, or T-34 calculator to find the probability
- Round your answer to four decimal places
Using the normal approximation to the binomial, it is found that there is a 0.0015 = 0.15% probability that at most 80 of these people will choose the creamery's brand.
In a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score of a measure X is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
It measures how many standard deviations the measure is from the mean. After finding the z-score, we look at the z-score table and find the p-value associated with this z-score, which is the percentile of X.The binomial distribution is the probability of x successes on n trials, with p probability of a success on each trial. It can be approximated to the normal distribution with [tex]\mu = np, \sigma = \sqrt{np(1-p)}[/tex].In this problem:
35% market share, hence [tex]p = 0.35[/tex].300 residents are surveyed, hence [tex]n = 300[/tex].The mean and the standard deviation are given by:
[tex]\mu = np = 300(0.35) = 105[/tex]
[tex]\sigma = \sqrt{np(1-p)} = \sqrt{300(0.35)(0.65)} = 8.26[/tex]
Using continuity correction, the probability that at most 80 of these people will choose the creamery's brand is [tex]P(X \leq 80 + 0.5) = P(X \leq 80.5)[/tex], which is the p-value of Z when X = 80.5, thus:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{80.5 - 105}{8.26}[/tex]
[tex]Z = -2.97[/tex]
[tex]Z = -2.97[/tex] has a p-value of 0.0015.
0.0015 = 0.15% probability that at most 80 of these people will choose the creamery's brand.
A similar problem is given at https://brainly.com/question/25298431
g(x)=23x+1; find g (-3), g (0),and f (9x+6)
Answer:
x= -1/23
Step-by-step explanation:
The cost of printing different numbers of copies of a book is shown on the graph below.
Which equation represents the cost ,C, of printing n copies of the book?
Answer:B
Step-by-step explanation:200 times 2 is 400
The price of a television was reduced from $2000 to $1400. By what
percentage was the television reduced?
Answer:
30%
Step-by-step explanation:
2000-----100%
1400------x%
x=(1400×100)÷2000
X=70%
final we go 100%-70%=30%
Television price reduced for 30%
