Answer:
D
Step-by-step explanation:
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Use the quadratic formula to solve for x.
8x²-7x+1=0
(there may be more than one solution, if so, separate them with commas.)
x = _
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Is x = 6 a solution to the equation 5(x – 3) = x + 13?
Follow the steps to find out.
1. Rewrite the equation 5(x – 3) = x + 13 with 6 substituted for x. Write a question mark over the equal sign to show that you're testing to see if the equation is true.
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Yes, both equations will always work, but yes, at times it is more logical to use one over the other. for instance:
x-4y=6
x+4y=12
we see here that elimination would best fit:
x+x+4y-4y=6+12
or:
x=2y-3
7x+3y-81=23
substitute (2y-3) for x.
Also, once you have a single placeholder, put it ito quadratic form (ax^2+bx+c=0)
and use the quadratic formula:
x=(-b±sqrt(b^2-4ac))/2a
Answer:
yes
Step-by-step explanation:
Solve for c. -8c=-24
Answer:
c=3
Step-by-step explanation:
Mario start collecting stamps in January and buys 12 stamps each month.Karen starts collecting stamps in July and buys 18 starts each month. how many months after Karen starts collecting stamps will she have the same number of stamps as Mario?
Answer:
12 months
Step-by-step explanation:
Given that:
Mario:
12 stamps per month
Since January
Karen :
18 stamps per month
Starts on july
Number of stamps collected by Mario till the end of June :
12 * 6 = 72 stamps
For Mario :
72 + 12x
For karen:
18x
Where x is the number of months after karen starts :
Equate both equations
72 + 12x = 18x
72 = 18x - 12x
72 = 6x
x = 72/6
x = 12
After 12 months
Number of months after karen starts, will they have same amount of stamp
Graph the line that passes through the points (1, -9) and (1, -3) and determine
the equation of the line.
Answer:
Step-by-step explanation:
The line is a vertical line with an equation of x = 1
y can be anything.
Draw (on graph paper) a dot at x = 1. Go down to - 3 and keep on going down to - 9. Then go up from x = 1. That's what this problem should give you.
1.What is a number that is a multiple of two or more numbers
Answer:
Step-by-step explanation:
"David is three years older than Jim. Tom is 5 years yunger than Jim. The sum
5
of their ages is 34 year. Find their ages.
Answer:
what are you saying
Step-by-step explanation:
this question is not correct
Last week Jack ran 18 miles more than Pranav. Jack ran 34 miles. How many miles did Pranav run?
Hello there!
Step-by-step explanation:
If Jack runs 34 miles, and Pranav runs 18 less, this signifies that we need to subtract 18 from Jack's total miles to get his miles ran.
34 - 18 = 16
Pranav ran 16 miles.
MMA-A unit 3 packet
4x-1=10+4x equations with special cases
Answer:
No solution
Step-by-step explanation:
With some linear expressions like this one, the answer will turn out to be 0, so your answer would be no solution
1,092 inches to yards
Answer:
Step-by-step explanation:
It would be 30.33 repeating.
Answer:
30.33 yards
Step-by-step explanation:
36 inches to a yard, so divide the length value in yards by 36.
1092 / 36 = 30.33 yds
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Answer:
(1, -2)Step-by-step explanation:
Point A has coordinates:
A(2, 1)Rule of 270° rotation:
(x, y) → (y, - x)Coordinates of A':
A' = (1, -2)*4. What is (2.0 x 10-1)3 in
scientific notation?
A 2.0 x 10 -3
1
B 2.0 X 1/10 3
C 8.0 X 1/103
D 8.0 x 10 -3
Answer:
D
Step-by-step explanation:
solve the inequality 31< 3x+4
y is directly proportional to .
When x = 500, y = 10
Find a formula for y in terms of x.
y=
Help me pleaseeeeeeeee
Answer is 25 good luck!
Four of the 16 students in Ms. Salas’s class after school are serving detention. The rest of the students are there for tutoring. Using the diagram below, determine the percent of the students in Ms. Salas’s classroom after school who were there for detention.
Choices:
A: 16%
B: 25%
C: 40%
D: 60%
please help
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Answer:
40 degrees
Step-by-step explanation:
A full triangle is 180 degrees
85+55=140
180-140=40
After 4 new students joined a class, the class had 32 students.
Which equation can be used to find x, the number of students in the class before the students joined?
A. x/4 = 32
B. x - 4 = 32
C. 4x = 32
D. x + 4 = 32
Solve the system of equations.
5x - 7y = 58
y = -x + 2
х =
y =
Answer:
the x and y is 6 and -4 respectively
Step-by-step explanation:
The computation of solving the system of equations is given below:
Given that
5x - 7y = 58
And,
y = -x + 2
Put y value in the first equation
5x - 7(-x + 2) = 58
5x + 7x - 14 = 58
12x = 58 + 14
12x = 72
x = 6
So y = -6 + 2
= -4
Hence, the x and y is 6 and -4 respectively
2(n + 5) = −2 pls show your work
Answer:
2(n + 5) = -2
2n + 10= -2
2n = -12
n= -6
Step-by-step explanation:
*WILL MARK BRAINLIEST*10 POINTS
How many triangles can be made given the following angles?
33°, 42°, 66°
A: One triangle
B: More than one triangle
C: No triangle can be made
*WILL MARK BRAINLIEST*
Find the circumference of the circle.
A: 47,1 in
B: 22 in
C: 10.5 in
D: 35 in
Answer:
C≈47.12, or 47.1
Step-by-step explanation:
To find the circumference you just use the formula C=2[tex]\pi[/tex]r.
The radius of your circle is 7.5 which is half of 15, now multiply 2[tex]\pi[/tex](7.5) which gives you your answer!
An even easier way to do this is to use the other formula C=d[tex]\pi[/tex],
Just multiply your diameter (which is what was given to you) by pi and you also get your answer!
Hope this helps! :)
water flows through a pipe at a rate of 7 cubic meters per month. Express this rate of flow in gallons per minute. Round your answer to the nearest hundredth.
Answer:
0.04
Step-by-step explanation:
The rate of flow is 0.043 gallons per minute.
How to convert litres to gallons ?Divide by 0.264 to obtain litres from gallons and multiply by 0.264 to obtain in gallons from litres.
According to the given question
Water flows through a pipe at a rate of 7 cubic meters per month.
We know 1 cubic meter is = 1000 litre
∴ 7 cubic meters per is
= (7 × 1000) litre
= 7000 litre
= (7000 × 0.264) gallons
= 1848 gallons per month
Now 1 month is
= ( 1 × 30 × 24 × 60 ) minutes.
=43200 minutes
So in 43200 minutes 1848 gallons of water flows through that pipe
∴ In a unit minute or per minute it the rate of flow will be
= 1848/43200 gallons per minute
= 0.043 gallons per minute.
Lean more about These type of problems here :
https://brainly.com/question/14526944
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Answer:
a) pentagon
b) concave
c) not regular
Step-by-step explanation:
a) this polygon has 5 sides, known as a pentagon
b) it is concave because you can connect the top two vertices with a diagonal which will be outside the shape
c) a regular polygon is equilateral (all sides equal) but the markings show that is not the case with this shape
Jessie served 11 pints of orange juice at her party. How many quarts of orange juice did she serve
Answer:
5 and 1/2 quarts
Step-by-step explanation:
A quart is 2 pints
Answer:
5 and 1/2 quarts
Step-by-step explanation:
Help on the last 2?
1/10( x + 130) = -2(3-X)
I need help
Answer:
x = 10
Step-by-step explanation:
1/10(x + 130) = -2(3 - x)
x + 130 = -20(3-x)
x + 130 = -60 + 20x
x - 20x = -60 - 130
-19x = -190
x = 10
My stepsister got stuck in the dryer what do I do??
Answer:
Orange + Black...
Step-by-step explanation:
2(38-4x) = 58-5x
Answer
Answer:
x=6
Step-by-step explanation: