Answer:
Simplifying
-5 + -1(3a + b) + (2a + -7b) = 0
-5 + (3a * -1 + b * -1) + (2a + -7b) = 0
-5 + (-3a + -1b) + (2a + -7b) = 0
Remove parenthesis around (2a + -7b)
-5 + -3a + -1b + 2a + -7b = 0
Reorder the terms:
-5 + -3a + 2a + -1b + -7b = 0
Combine like terms: -3a + 2a = -1a
-5 + -1a + -1b + -7b = 0
Combine like terms: -1b + -7b = -8b
-5 + -1a + -8b = 0
Solving
-5 + -1a + -8b = 0
Solving for variable 'a'.
Move all terms containing a to the left, all other terms to the right.
Add '5' to each side of the equation.
-5 + -1a + 5 + -8b = 0 + 5
Reorder the terms:
-5 + 5 + -1a + -8b = 0 + 5
Combine like terms: -5 + 5 = 0
0 + -1a + -8b = 0 + 5
-1a + -8b = 0 + 5
Combine like terms: 0 + 5 = 5
-1a + -8b = 5
Add '8b' to each side of the equation.
-1a + -8b + 8b = 5 + 8b
Combine like terms: -8b + 8b = 0
-1a + 0 = 5 + 8b
-1a = 5 + 8b
Divide each side by '-1'.
a = -5 + -8b
Simplifying
a = -5 + -8b
Step-by-step explanation:
in the quadratic equation, what is the value, a, in order to form a perfect square x^2-8x+a=0;
Answer:
16
Step-by-step explanation:
x² - 8x + 16 will become ( x - 4 ) ( x - 4 ) or ( x - 4 )²
tupac guarda monedas de coleccion en su alcancia tiene dos monedas de 10 pesos tres monedas de 5 pesos siete monedas de 0.50 pesos cinco monedas de 0.25 pesos y tres monedas de 0.10 pesos ¿cuanto denero tiene en total Me ayudan plis
Answer:
40.05
Step-by-step explanation:
multiplicas la cantidad de monedas por su valor:
2 monedas de 10 = 20
3 de 5 = 15
7 de 0.50 = 3.50
5 de 0.25 = 1.25
3 de 0.10 = 0.30
sumas lo multipicado:
40.05
Find the unknown sizes of angles in the following figures (with step-by-step explanation please):
Answer:
O= 87 degrees
Step-by-step explanation:
Because they are opposites
Answer:
x angle is 29
then 2x angle is 58 and y angle is complementary so then y also is 58
A breakfast stall at a market stays open for 4 hours 30 minutes every morning. If it opens at 06:45 every morning, what time did he reach
Answer:
uhj hdctui nomar binary 34.89
Write the equation of the line shown in the graph to the right
Hint: Think about slope and y-intercept.
Answer:
y=2x-6
Step-by-step explanation:
The intercept is -6 so -6 and you take two points on the line e. g. (3,0) and (2,-2) You would do -2-0 to get -2 and 2-3 to get -1. -2 divided by -1 equals 2. The slope is two.
Can you Helppp please
To have infinite solutions both equations need to be equal
Since they subtract 5 from the right side, subtract 5 from the left side.
X is multiplied by 1/2 on the left , so multiply x by 1/2 on the right side.
1/2x -5 = 1/2x-5
Alice purchased 4 1⁄2 kilograms of olive oil for $27. What is the price per kilogram?
=====================================================
Explanation:
The mixed number 4 & 1/2 converts to the decimal form 4.5
The unit price is 27/(4.5) = 6 dollars per kilogram
------
If you wanted, you can think of it like this ratio
4.5 kg : 27 dollars
Dividing both parts of that ratio by 4.5 will lead to
1 kg : 6 dollars
I really need help please someone
Answer:
B) She puts the flag in the window after the men have taken it down.
Step-by-step explanation:
Hope this helps! Pls give brainliest!
Answer:
She puts the flag in the window after the men have taken it down.
8. There are 3 cows for every 4 chickens on a farm. If there are 154
animals, how many are cows?
Pls help me
Answer:
12 po
Step-by-step explanation:
I try my best I don't know if right
Explain how you can mentally determine that 35000 divided by 70 is 500
Hello, I need some help?
What is the maximum height the cannonball will travel (include units in your answer)?
35 feet
you can find the answer by looking at the top-most point on the line
this top-most point reaches between 30 and 40 feet, exactly in the middle
therefore it is 35 feet
how many times dose the average person do math a day?
can someone helo me with this 4^x x 8^x ^+ ^1 = 2⁴
Answer:
c
Step-by-step explanation:
sas, sss, aas, or not enough information
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Two Angles and the side between them are equal to corresponding Angles and side of another triangle ( one of the Angles are equal because of vertical opposite angle pair ), so the required congruency criteria to prove them equal is :
ASAAnswer:
ASA
Step-by-step explanation:
Dylan invested some money in his bank.
He agreed a simple interest rate of 3% per annum for a period of 2 years.
At the end of the 2-year period the value of his investment increased by £72.
Work out the value of Dylan's initial investment.
two years at 3% = .03*2 = .06
so
.06 times original deposit = 72
so 72/.06
which is
1200
I will give you brainliest if you solve the math question
Answer:
x=60
y=30
Step-by-step explanation:
Answer:
y=30
x=60
Step-by-step explanation:
Below is a recipe for chocolate chip cookies. The recipe makes 27 cookies. How many teaspoons of vanilla extract do you need to make 24 cookies? Round to the nearest hundredth if needed.
Answer: 1.78 teaspoons
Step-by-step explanation:
The recipe says: 27 cookies/2 teaspoons Vanilla extract. Let's abbreviation this conversion factor as (27/2)C/V, where C is cookie and V is 1 teaspoon vanilla extract. We have both 13.5C/V and 1V/13.5C as conversion factors. 13.5 cookies is equivalent to 1 teaspoon vanilla, or 1 teaspoon vanilla is equivalent to 13.5 cookies. We can multiply ofr divide either of these factors, since they are both equivalent to 1, and you can mukltiply or divide anything by 1 without changing it's accuracy. The atual numbers will change, but the units will also change, making it a valid result.
We want 24 cookies. Use one of the conversion factors to find the teaspoons vanilla extract required:
1) We can divide by (27C/2V)
24C/((27C/2V) = 1.78 teaspoons
or
2) we can multiply by (1V/13.5C)
24C*(1V/13.5C) = 1.78 teaspoons
If there are 5 females in a classroom, and 4 males, but 4 of the females are students, whos the other female? please only answer if you know ive been stuck on this for hours
Answer:
1 teacher female
Step-by-step explanation:
Answer:
Teacher?
Step-by-step explanation:
Well if the other female isn't a student then it must be the teacher.
The circle graph represents the after-tax budget for the Williams family. If the total monthly budget is $3050, which is the best estimate for the food budget?
The best estimate for the food budget will be the percentage of the food budget multiplied by $3050.
This is an incomplete question, therefore, an overview of the question will be given. Since you didn't provide the percentage of the food budget, let's assume that the percentage is given as 20%. Therefore, the food budget will be;
= 20% × $3050
= 0.2 × $3050
= $610
The food budget will be $610.
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https://brainly.com/question/25311515
HELP HELP
Write the equation of the parabola in vertex form.
vertex (0,3), point (1, - 4)
f(x) =
(Simplify your answer.)
Answer:
Equation of the parabola: y = 3 - 7x^2
Step-by-step explanation:
The equation of the parabola with vertex (h,k) is y = a(x - h)^2 + k
Thus, the equation of this parabola is y = ax^2+3
To find a, use the fact that the parabola passes through the point (1,−4):
-4 = a(1)^2 +3
Solving this equation, we get that a = −7.
Thus, the equation of the parabola is y = 3 − 7x^2.
When President Obama stated, "Transparency and the rule of law will be the touchstones of this presidency," he meant that
Answer:
that what
Step-by-step explanation:
Find X in the triangles
Answer:
8. 14x+6+16x+4=130
30x+10=130
30x+10-10=130-10
30x=120
x=4
10. 11x+3-85=5x-10
11x+3-85-5x=5x-10-5x
6x+3-85=-10
6x+3-3-85+85=-10-3+85
6x=72
x=12
Step-by-step explanation:
Find the distance between P(2, 5 ) and Q( 7 , 3)
Answer:
PQ = √(7-2)²+(3-5)²
= √ 5²+(-2)²
= √ 25+4
=√29 units
Hope it helps !
Don't forget to mark me as brainliests.
Shylan's vegetable garden is florishing. She has
20 plants in her garden which are broken into
equal rows. 1/5 of the rows are cucumbers and
40% of the rows are squash. 1/2 of the
remaining rows are tomatoes. How many
pepper plants does she have?
Answer: 90millionhajk
Step-by-step explanation:
5 litres into grams.
Step-by-step explanation:
Do like this only with no. mark me as brainliest answer
Answer:
Weight in Grams of:
Water Cooking Oil
5,000 g 4,400 g
Step-by-step explanation:
Hope this helps
what is the answer to this
-11 - (-3)
Answer:
-8Step-by-step explanation:
-11 - (-3) =(-11) + 3
-8
Answer:
=−8
Step-by-step explanation:
=−11−(−3)
=−11+3
=−8
Enrollment at a golf academy has grown exponentially since the academy opened. Below is a graph depicting this growth. Determine the average rate of change from x = 0 to x = 4.
A) 0.067
B) 4
C) 15
D) 75
Answer: 15
Step-by-step explanation: I took the test.
Answer:
C.) 15
Step-by-step explanation:
Complete the square:
x2 - 6x + 9=-13+ blank
Answer:
to complete the square, you add (b/2)^2 on both side. in this case, b is -6, half of -6 is -3, -3 squared is 9, so:
x^2-6x+9=-13+9
(x-3)^2=-4
This quadratic equation have unreal solutions
Step-by-step explanation:
Answer:
Step-by-step explanation:
To complete the square, divide the coefficient of x by 2.
6 /2 = 3
Take square of 3 and add to both sides
3*3 = 9
x² - 6x + 9 = -13 + 9
x² - 6x + 9 = -4
(x - 3)² = -4
Find the equation of the linear function represented by the table below in slope-
intercept form.
Answer:
Hey there, first let's find the slope.
M=y2-y1/x2-x1.
M=7-3/2-1 which is 4/1.
So your slope is 4
So now we have y=4x+b.
Now we need our Y-intercept (B). which is -1
So your answer is Y=4x-1
please answer the question :]