Use the quadratic formula to find the roots of x 2 + 2x − 7
Answers
Answer:
-1+2[tex]\sqrt{2}[/tex], -1-2[tex]\sqrt{2}[/tex]
Step-by-step explanation:
Related Questions
Which expression shows how 5⋅37 can be rewritten using the distributive property?
5x30+5x7
5x30+5x37
15x30+15x37
5x30+7
Answers
Answer:
5 x 30 + 5 x 7 is the correct option.
Answer:
5*30+5*7
Step-by-step explanation:
6.7
x 2.5
2 x 6 =
2 x 0.7 =
1
11
0.5 x 6 =
0.5 x 0.7 =
Answers
Answer:
6.7
x 2.5
2 x 6 =53
Step-by-step explanation:
Answer:
1. 16.75
2. 12
3. 1.4
4. 1
5. 11
6. 3
7. 0.35
can somebody help? please.
Answers
Answer:
[tex]x=\dfrac{\sqrt6 \sqrt 2}{2}[/tex]
Step-by-step explanation:
We need to find the value of x.
Here, Hypotenuse = √6
Perpendicular = x
We know that,
[tex]\sin\theta=\dfrac{P}{H}[/tex]
So,
[tex]\sin(45)=\dfrac{x}{\sqrt6}\\\\x=\sin(45)\times \sqrt{6} \\\\x=\dfrac{\sqrt{6}}{\sqrt{2} }\\\\x=\dfrac{\sqrt{6}}{\sqrt{2} }\times \dfrac{\sqrt2}{\sqrt2}\\\\x=\dfrac{\sqrt6 \times \sqrt 2}{2}\\\\x=\dfrac{\sqrt6 \sqrt 2}{2}[/tex]
So, the value of x is equal to [tex]\dfrac{\sqrt6 \sqrt 2}{2}[/tex].
A circle has a radius of 8. Find the area of a sector of this circle that is intercepted by central angle measuring pi over 7
Answers
Answer:
14.4 square units
Step-by-step explanation:
Keep in mind that the area here is a fraction of the area of a full circle of radius 8.
(area of sector) = (fraction)(pi)(8)^2
The fraction is the given central angle (pi over 7) divided by 2pi:
pi 1
--------- * ----------- = 1/14
7 2pi
Multiply the formula (fraction)(pi)(8)^2 found above by this fraction:
area of sector = (1/14)(pi)(8)^2 = 14.4 square units
A building 220 feet casts a 100 foot long shadow. If a person stands at the end of the shadow and looks up to the top of the building, what is the angle of the personas eyes to the top of the building? 62.14 65.56 64.95 27.86
Answers
Answer:
65.56°
Step-by-step explanation:
= We solve the above question using the Trigonometric function of Tangent
tan θ = Opposite/Adjacent
Opposite = 220 feet = Height of the building
Adjacent = 100 feet = Length of the shadow
Hence,
tan θ = 220/100
tan θ = 2.2
= arctan(2.2)
= 65.55604522°
Approximately = 65.56°
HELP HELP! WILL GIVE BRAINLIEST! The following three shapes are based only on squares, semicircles, and quarter circles. Find the perimeter and the area of each shaded part.
Answers
Answer:
17.38cm²
Step-by-step explanation:
hope this helps...
just give the number plsthx
Answers
Answer:
69
Step-by-step explanation:
Answer:
69
Step-by-step explanation:
because 100 minus 31 equals 69
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Answers
What is the area of the triangle pictured below?
3
13
5
11
PLEASE HELP
Answers
Answer:
Step-by-step explanation:
2145
A= basexhight divided by 2
If you use that, you will get your answer
PLEASE HELP ASAP I WILL AIL IF U DONT HELP AND U WILL GET POINTS 10 POINTS
Answers
Please help me with this
Answers
Negative ten is no less than two times a number plus fourteen.
Answers
Answer:
i this like true or false,if so its true
:)
Step-by-step explanation:
Simplify the mathematics question
Answers
x+5/2x+3
Bill can throw a football 31 yards and 1 foot. Gil can throw a football 23 yards and 2 feet. How much further can Bill throw the football?
Answers
Answer:
23 ft
Step-by-step explanation:
94 - 71 = 23 feet
1 kilogram 900 is it more than less than or equal to
plz help
Answers
Answer: =
Step-by-step explanation:
What in trying to find is 95-3into4 3 for 4 times. 95-3x3x3x3=_____. What can i do for this answer. ☠️~_~-_- -_-||
Answers
Answer:
14
Step-by-step explanation:
To evaluate 95 minus 3, four times
95 - 3⁴
95 - (3 * 3 * 3 * 3)
95 - (81)
95 - 81
= 14
Hence, 95 - (3 * 3 * 3 * 3) = 14
What is an equation of the line that passes through the points (-4,-2)
and (8, 1)?
Answers
Answer:
y=1/4x-1
Step-by-step explanation:
i do not know wich one it is
Answers
Answer:
B
Step-by-step explanation:
You are right becuase thats mainly were the cluster is.
Amy would like to spend at most $100 on lunches for the month. After the first day, Amy had spent $25. At most, how much money can Amy still spend?
Answers
Answer:
for the whole month $75.00 for each day around $2.60
Step-by-step explanation:
$100-$25=$75
$75÷29=$2.60 (rounded)
full number is $2.586206896551724
Can I please have Brainliest?
The distance between second and third bases on a regulation baseball field is 90 feet. Scott says he needs to multiply to find the number of yards between the second and third bases. Do you agree? Support your answer
Answers
Answer:
Yes, distance in yards can be obtained by multiplication.
Step-by-step explanation:
Given that the distance between tow points is 90 feets, The distance between these two points in yards can be obtained either by multiplication or division.
I foot = 0.3333 yards
To convert distance between the second and third bases from feet to yard ;
Multiply distance in feets by 0.3333 to obtain the corresponding distance in yards ;
90 * 0.3333 = 29.997 = 30 yards
(Photo attached) Is Tamara's work correct? If not, what is the first step where Tamara made a mistake?
Answers
find the measure of the indicated angle to the nearest degree
Answers
Answer:
21.8014094864
Step-by-step explanation:
tan(x)= 4/10
=0.4
inverse tan(0.4)
21.8014094864
HELP PLEASE!!!!!!!!!!!!!!!!!
Answers
Answer:
a
Step-by-step explanation:
on x line it = 3 and there is no slope/no steep hill yk
Answer:
Slope= 0 , X= 3
Step-by-step explanation:
the slope goes up 1 over 0.
I hope this helps
Have a good day.
what is your dream job?
Answers
My dream job is to be a pro football player for the NFL.
Answer:
a Nurse
Step-by-step explanation:
"Percent" translates to "per 100."
true or false
Answers
Answer:
true
Step-by-step explanation:
percent means in every hundred so the statement is indeed true
Answer:
I think it would be true
Step-by-step explanation:
Please help Find the surface area of the pyramid. The side lengths of the base are equal. I WILL MARK YOU BRAINLYIST!!!
Answers
Answer:
The answer is 207.227
Step-by-step explanation:
Hope this help
describe distributive property
Answers
Answer:
To “distribute” means to divide something or give a share or part of something. According to the distributive property, multiplying the sum of two or more addends by a number will give the same result as multiplying each addend individually by the number and then adding the products together.
Step-by-step explanation:
Answer:
it generalized the law of algebra in which we have to do numbers to nearest 10 100 1000....
Complete the square for 5x2 - 30x = 5.
Answers
Answer:
x=1/6
Step-by-step explanation:
cytktcyrcuhvoui
4. The product of 32 and n is equal to 59.13.
Answers
Answer:
pretty sure it is 1.8478125
Step-by-step explanation:
Samuel saved some money for a new phone, but then he spent $24 of his savings on a
pair of headphones. Now he has $189 left. Let d be the number of dollars Samuel had
originally saved. Write and solve an equation to find d.
Answers
Answer:
213$
Step-by-step explanation:
24$ on headphones
189$ left
so you add the use and what is left an u get 213$ do not forget to write $ when u are finished :)
