Solve using quadratic equation by factoring.
x^2+8x=65
Answers
Answer:
-13, 5
Step-by-step explanation:
See image below:)
Related Questions
102×98
Search using factors.
Answers
Answer:
9996
Step-by-step explanation:
i have 3 time as much money as does my brother. your total is 42$. how much do we have
Answers
Answer:
56
Step-by-step explanation:
42 / 3 = brother's amount = 14
14 + 42 = 56
Answer:
Step-by-step explanation:
money of brother=x(say)
money i have=3x
x+3x=42
4x=42
x=42/4=21/2=10.50
money of brother=$ 10.50
money i have= 3 *10.50=31.50 $
A marine biologist dove 40ft below sea level to study the
coral and her drone is flying 20ft above sea level. What is
the distance between the marine biologist and the drone?
Answers
Answer:
60 feet
Step-by-step explanation:
Jordon missed 49 on his multiple choice math final and earned a grade of 65%. How many total questions were on the final exam?
Answers
Answer:
The exam was out of 75.
Step-by-step explanation:
You know that he earned 65% so more than half his answers were correct.
Then, you would guess and check try 49/60, 49/70, and go up by 10s or 5s. You will then realize that 49÷75 equals 65.333. This rounds up to 65.
solve: 3x^2+16x+5=0
I did it but apparently its wrong so, please help it would literally probably help me finish high school.
Answers
Answer:
(3x+1)(x+5)
Step-by-step explanation:
Sorry for my handwriting lol hope this makes sense
Find the value of x.
Answers
Answer:
hi
Step-by-step explanation:
84⁰+103⁰+120⁰=307⁰
360⁰-307⁰=53⁰
x is 53⁰
have a nice day
Answer:
x=53
Step-by-step explanation:
A quadrilateral has four sides, four vertices and its interior angles that add to 360 degrees:.
360 -120-103-84-= x
360-307 = x
53 = x
Can someone help me???
Answers
Answer:
p to the power of 12
Step-by-step explanation:
hope this helps!
The answer is
(p3)4=p?
p3×4=p12
PLZZZ HELP ILL GIVE BRAINLIEST
Answers
50% of the students work on homework for 20 minutes or less per night.
Ariana Grande put her 7 rings in a rectangular plate that had an area of 54 square inches. If the length of the is 12 inches, what is the width?
Answers
Answer:
4 1/2 inches
Step-by-step explanation:
if you have an area of 54 square inches. Then you divide 54 by 12 and get 4 and 1/2 square inches
Answer:
4.5
Step-by-step explanation:
12x=54 x=4.5
4.5×12=54
Which graph represents the function h(x) = |x| + 0.5?
Answers
Answer:
on a coordinate plane an absolute value graph has a vertex at (negative 0,0.5).
hope it helps
please mark Brainliest
Calculate the surface area of an open cylinder measuring 35cm in diameter and 60cm high.
Answers
Answer:
6598.2 in^2
Step-by-step explanation:
Given data
Diameter= 35in
Radius= d/2= 35/2= 17.5in
Height = 60cm
The expression for the curve surface area of a cylinder is
CSA=2πrh
substitute
CSA= 2*3.142*17.5*60
CSA= 6598.2 in^2
Hence the CSA is 6598.2 in^2
In circle D, angle ADC measures (7x + 2)°. Arc AC
measures (8x - 8)º.
What is the measure of angel ABC
Answers
Answer:
The measure of angle ABC is 36° ⇒ 1st answer
Step-by-step explanation:
Let us revise some important facts in the circle
The measure of the center angle is equal to the measure of its subtended arc
The measure of the inscribed angle is equal to half the measure of the central angle subtended by the same arc
The vertex of a central angle is the center of the circle and its sides are radii in the circle
The vertex of an inscribed angle is a point on the circle, and its sides are chords in the circle
In circle D
∵ D is the center of the circle
∵ A and C lie on the circle
- DA and DC are radii
∴ ∠ADC is a central angle subtended by arc AC
∴ m∠ADC = m of arc AC
∵ m∠ADC = (7x + 2)°
∵ m of arc AC = (8x - 8)°
- Equate them to find x
∴ 8x - 8 = 7x + 2
- subtract 7x from both sides
∴ x - 8 = 2
- Add 8 to both sides
∴ x = 10
Substitute the value of x in the measure of ∠ADC
∵ m∠ADC = 7(10) + 2 = 70 + 2
∴ m∠ADC = 72°
∵ AB and BC are two chords in circle D
∴ ∠ABC is an inscribed angle subtended by arc AC
∵ ∠ADC is a central angle subtended by arc AC
- By using the 2nd fact above
∴ m∠ABC = m∠ADC
∴ m∠ABC = × 72
∴ m∠ABC = 36°
The measure of angle ABC is 36 degrees
Circle geometry
To get the required measure of m<ABC, we will use the theorem that states that the measure of the central angle is equal to the measure of its subtended arc and;
The vertex of a central angle is the center of the circle and its sides are radii in the circle
According to the given circle D
∠ADC is a central angle subtended by arc AC
m∠ADC = m of arc AC
m∠ADC = (7x + 2)°
m of arc AC = (8x - 8)°
Equate to find the value of x
8x - 8 = 7x + 2
x - 8 = 2
x = 10
Substitute the value of x in the measure of ∠ADC
m∠ADC = 7(10) + 2 = 70 + 2
m∠ADC = 72°
∠ADC is a central angle subtended by arc AC
m∠ABC = 0.5 × 72
m∠ABC = 36°
Hence the measure of angle ABC is 36 degrees
Learn more on circle geometry here: https://brainly.com/question/24375372
What should be added to -211 to get 195?
Answers
Let the no. added be x
= -211 + x = 195
= x = 195 + 211
= x = 406
The number should be added is 406..
2x+22 =4(x+30 i need it asap
Answers
Answer: 55
Step-by-step explanation:
Answer: x= -71
Step-by-step explanation:
which values are in the solution set of the inequality 32 x +13 > -12
Select all that apply.
A.19
B.20
C.21
D.22
E.23
Answers
Answer:
B, D, E
Step-by-step explanation:
404 is the answer to the question 32 x +13 > -12. Meaning B, D, and E are the inequalities of 32 x +13 > -12
I need help please !!!!!!
Answers
Explanation:
Isosceles triangle is where two side lengths are equal.
Equilateral triangle is where all side lengths are equal.
Scalene Triangle is where all side lengths have different measures.
Since this triangle has two side lengths with the same measure it is an isosceles triangle.
Maria is making a fruit punch. There are 15.75 ounces of orange juice in a container. Maria pours 2.25 ounces of cranberry juice into the container each second. How many ounces of fruit punch are in the container after 9 seconds?
Answers
Answer:
20.25 ounces
Step-by-step explanation:
We are given 2.25 ounces of cranberry poured into the container per second. We need to find is how much that is after 9 seconds. (Note: This is different from the 15.75 ounces of orange.) There are many ways to solve this question (e.g If 2.25 is 1, then multiply 2.25 and 9 = 20.25) Now to solve this let's set up fractions; let "x" be the variable;
[tex]\frac{1}{2.25}=\frac{9}{x}[/tex]
Apply fraction: if [tex]\frac{a}{b}=\frac{c}{d}\mathrm[/tex] then [tex]a\cdot \:d=b\cdot \:c[/tex] (meaning cross multiply)
[tex]1\cdot \:x=2.25\cdot \:9[/tex]
Simplify
Multiply by 1[tex]1 x = 2 . 2 5 \cdot 9 \\\\ x = 2 . 2 5 \cdot 9[/tex]
Multiply the numbers[tex]x = 2 . 2 5 \cdot 9\\\\x=20.25[/tex]
Therefore, there are 20.25 ounces of fruit pouch in the container after 9 seconds.
Answer:
36 oz
i dont know how to explain i just know
A class of 30 swim team members took a lifesaving test. Eighteen of the members had an average score of 92 points. The remaining members had an average score of 84 points.
What was the average for the entire swim team?
Answers
Answer:
88.8%
Step-by-step explanation:
1.) 30-18= 12 which is the number of member that had an average of 84
2.)Then multiply 12 times 84 = 1008
3.) You multiply 18 by 92 which equals 1656
4.)Add 1008 and 1656 together and get 2664.
5.)Divide 2664 / 30 and you get the average of 88.8
Hope this helps :)
plz brainly & like
Answer:
88.8%
Step-by-step explanation:
For the equations given below, which statement is true? A. The equations do not have the same solution because the second equation can never be obtained when multiplying the first equation by any value. B. The equations have the same solution because the second equation can be obtained by multiplying both sides of the first equation by −3. C. The equations have the same solution because the second equation can be obtained by multiplying both sides of the first equation by 3. D. The equations have the same solution because the second equation can be obtained by multiplying both sides of the first equation by −4.
Answers
Claire can make an origami swan in 2 1/2 minutes what fraction shows the number of swans she can make per minute
Answers
Answer:
2/5
Step-by-step explanation:
Number of swans Claire can make in one minute = 1 ÷ 21/2
convert 2 1/2 to an improper fraction
to convert to improper fraction, take the following steps :
1. Multiply the whole number by the denominator
2. Add the numerator to the answer gotten in the previous step
3. divide the number gotten in the previous step by the denominator
2 1/2 = 5/2
1 ÷ 5/2
1 x 2/5 = 2/5
if each box represents 1 miles, what is the shortest distance from the school to the skate park.
Answers
The shortest distance between two points is a straight line.
Use the distance formula for points.
In the diagram, we are given two points:
(4,2) and (-3,0).
Let d = distance between the two points.
d = sqrt{(-3 -4)^2 + (0-2)^2}
d = sqrt{(-7)^2 + (-2)^2}
d = sqrt{49 + 4}
d = sqrt{53}
d = 2.2360679775
d = 2.2 miles
can someone answer both questions for me.
Answers
Answer:
For the First
a. True
b. false
c. True
d.false
Second
a. d and h or a and e
b. d and g or c and e
c.d and f or c and h
d. a anf d or g and f
im in need help do this question
Answers
Answer:
answer: 161
Hope this helps!
After allowing 20% discount and then levying 13% Value
Added Tax (VAT), the value of the watch will be Rs. 904.
Find the marked price of the watch.
Answers
Take x as the marked original price
x * (1-20/100) = 0.8x this is price after discount
0.8x * (1+13/100) = 0.904x this is the price after discount and Vat
0.904x=904 Rs
x = 904/0.904
x = Rs. 1000
MARKED ORIGINAL PRICE
= Rs. 1000
A triangle has angles that measure 55°, 53°, and 72°. What kind of triangle is it?
Answers
Answer: an acute triangle
Step-by-step explanation:
All of the angles are less than 90 degrees.
Please help me!! How do I do this?
Answers
Answer: 36
If I got it wrong than I am so sorry.
Plot two points that are 888 units from Point \blueD{B}Bstart color #11accd, B, end color #11accd and also share the same xxx-coordinate as Point \blueD{B}B
Answers
Question:
Plot two points that are 8 units from Point B and also share the same x-coordinate as Point B
See attachment for grid
Answer:
See attachment for plot
Step-by-step explanation:
See comment for complete question
From the attached image, we have:
[tex]B = (-6,0)[/tex]
Required
2 points that are 8 units away and on the same x coordinate
Let the two points be [tex]C\ and\ D[/tex]
The first condition is that; C and D must be on the same x coordinate as B.
So, we have:
C = (-6,_)
D = (-6,_)
8 units from B implies that we add or subtract 8 from the y coordinate of B.
So, we have:
[tex]C = (-6,0+8)[/tex]
[tex]D = (-6,0-8)[/tex]
[tex]C= (-6,8)[/tex]
[tex]D= (-6,-8)[/tex]
last month I joined an online strategy game. when I joined there were 20 members, since then the number of members has decreased by 80% how many members are there now
Answers
Answer:
4
Step-by-step explanation:
80% of 20 is 16. 20-16=4
please please help me i’m failing math!!!
Answers
Answer:
go to school, do your work, you are only cheating yourself, not the school, or end up homeless
Step-by-step explanation:
(two times pi times your radius)
Your midpoint is at (5,0) and seeing as it crosses straight through the middle, your radius is 5 units. Input it into the formula and you’ll get your answer.
2π • 5
Answer: C ≈ 31.42 units
Find the area of this triangle.
Round to the nearest tenth.
57°
11 in
6 in
[?] in2
Enter
Answers
Answer:
27.6 is the area
Step-by-step explanation:
Area of the given triangle is equals to [tex]27.6 in^{2}[/tex](round to nearest tenth).
What is triangle?" Triangle is defined as two dimensional geometrical shape with three vertices, three sides and three angles enclosed in it."
Formula used
Pythagoras theorem
(Hypotenuse)² = (Base)² + (Height)²
Area of a right triangle = [tex]\frac{1}{2} \times b\times h[/tex]
[tex]b[/tex] represents the base of the triangle
[tex]h[/tex] represents the height of the triangle
According to the question,
In a given triangle,
Hypotenuse [tex]= 11in[/tex]
Height [tex]= 6in[/tex]
Substitute the value in Pythagoras theorem to get the measure of base,
[tex](11)^{2} = b^{2} + 6^{2}\\\\\implies b^{2}= 121 -36\\\\\implies b =\sqrt{85}[/tex]
Substitute the value in the formula to find area of a triangle,
Area of a triangle [tex]= \frac{1}{2}\times \sqrt{85} \times 6[/tex]
[tex]= \frac{1}{2} \times 9.22 \times 6\\\\= 9.22 \times 3\\\\= 27.66[/tex]
≈ [tex]27.6in^{2}[/tex] ( round to nearest tenth)
Hence, area of the given triangle is equals to [tex]27.6 in^{2}[/tex](round to nearest tenth).
Learn more about triangles here
https://brainly.com/question/12538366
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