Answer:
x = ± 2
Step-by-step explanation:
Given
3x² = 12 ( divide both sides by 3 )
x² = 4 ( take the square root of both sides )
x = ± [tex]\sqrt{4}[/tex] = ± 2
The cost of 4 pounds of bananas is $3.52. What is the constant of proportionality that relates the cost of dollars, y, to the number of pounds of bananas, x?
please help!!! it doesn't show me the graph btw
Answer:
Yul I can't help u I don't understand it
Fill in the blank with a constant, so that the resulting quadratic expression is the square of a binomial.
\[x^2 + 22x + \underline{~~~~}.\]
Answer: 121
Step-by-step explanation:
The formula for the square of sums is [tex](a+b)^2=a^2+2ab+b^2[/tex].
Applying the formula, we see that the only option for b is 11 squared, or 121.
At the amusement park there were t-shirts for sale for $18.95 each. James bought 4 of them. About how much did he spend?
$80.00
$60.00
$24.00
$75.80
James would be spending the amount of $75.80 which is the correct answer would be an option (D).
What is the Multiplication operation?In mathematics, the multiplication operation Values on each side of the operator are multiplied.
We have been given that there were t-shirts for sale for $18.95 each at the amusement park, and James bought 4 of them.
To determine the amount of cost did he spend.
The amount of cost is equal to the multiplication of each t-shirts cost and
quantity.
The amount of cost = the cost of each t-shirt × quantity
The amount of cost = $18.95 × 4
Apply the multiplication operation to get
The amount of cost = $75.80
Therefore, he would be spending the amount of $75.80.
Learn more about the arithmetic operations here:
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add 2/3 +-7/11 +-1/4
Answer:
1 73/132
Step-by-step explanation:
GCF of 4, 11 and 3 is 132.
Convert the fractions and add!
A quadratic equation in standard form is written az = but c, where a, b, and
care real numbers and a is not zero.
A. True
B. False
Answer:
false
Step-by-step explanation:
Please walk me through how to solve this. I've already graphed it, just need to know how to solve. Thanks!
Graph ABCD with B(0,6), C(2,-5), and D(-8, -1),
then order the angle measures from least to
greatest.
Answer:
Get a protractor
Step-by-step explanation:
You should have a protractor if you're doing this type of work. Measure the angles with it, and than order them from least to greatest. If you dont have a protractor, ask your parents to get you one ASAP
Find the slope of the line passing through the points (-3, 7) and (2, -6).
Answer:
-13/5
Step-by-step explanation:
=y2-y1/x2-x1
= -6-7/2--3
= -13/5
scientific notation for 7×10^9
Answer:
7,000,000,000
Step-by-step explanation:
7×10^9
The number after ten is how many zeros you put.
Answer: 7000000000
Step-by-step explanation: 7x
1000000000
Find the distance between the two points in simplest radical form.
(1,8)(6,-4)
#2: Solve the linear system below using the elimination method. Type your
answer as an ordered pair in the form (#,#). *
5x + 7y = 33
11x + 7y = 39
+
The given linear system is:
[tex]\displaystyle \left \{ {{5x+7y=33} \atop {11x+7y=39}} \right.[/tex]
The question is asking to solve using elimination. When eliminating, you can either eliminate x or y. In this system, y is much easier to eliminate. The y variable in both equations are 7y. To eliminate, one of them has to be negative, so multiply one of the equations by -1.
I will be multiplying the second equation by -1.
[tex]\displaystyle (11x + 7y = 39) \times -1 = -11x-7y=-39[/tex]
Rewrite the system:
[tex]\displaystyle \left \{ {{5x+7y=33} \atop {-11x-7y=-39}} \right.[/tex]
Subtract:
[tex]5x+7y=33\\-11x-7y=-39[/tex]
[tex]5x-11x=33-39\\-6x=-6[/tex]
Lastly, you need to leave the variable x alone. The variable is currently -6x or -6 times x. To remove it, you need to do the opposite of it, which is dividing by -6.
[tex]\displaystyle \frac{-6x}{-6} =\frac{-6}{-6}[/tex]
[tex]\displaystyle x=1[/tex]
Now that you have the value of x, substitute it into one of the equations to find y. I will be substituting it into the first equation.
[tex]5x+7y=33 \rightarrow 5(1)+7y=33[/tex]
Open the parentheses and multiply:
[tex]5+7y=33[/tex]
Move 5 to the other side to leave the variable alone:
[tex]5+7y-5=33-5[/tex]
You will be subtracting since you're "removing" it by doing the opposite of it.
[tex]7y=28[/tex]
Lastly, divide both sides by 7 to leave y alone.
[tex]\displaystyle \frac{7y}{7} =\frac{28}{7}[/tex]
[tex]y=4[/tex]
[tex]\displaystyle (x,y) \rightarrow (1, 4)[/tex]
The answer is (1, 4).
Answer:
(1, 4)
Tbh this question was a bit of a challenge for me but hopefully it helps ya.
Step-by-step explanation:
First, let's solve for y. So we have to eliminate the x values.
(5x + 7y = 33 ) *11
(11x + 7y = 39) *-5
___________
55x + 77y = 363
-55x -35y = -195 This eliminates the x value.
42y = 168 Divide both sides by 42 to isolate y: 168/42= y = 4
Now let's solve for x.
(11x + 7y = 39) *7
(5x + 7y = 33 ) *-7
___________
77x + 49y = 273
-35x -49y = -231 This cancels out the y values, which leaves 42x = 42
x = 1 and y = 4, so the answer is (1, 4)
Derek scored a 15/25 on his math test and Meredith scored a 8/14 on her science test. Who had the best score? Explain.
Answer:
Derek
Step-by-step explanation:
15/25
8/14
find common factor:
350 is the lcm for both of them
Derek: 15/25= 210/350
Meredith: 8/14= 200/350
So, Derek got a better score
Answer:
derek
Step-by-step explanation:
if u simplify them, meredith in simplest form in decimal is .571428
and derek when you simplify his in simplest form in decimal is .6
so therefore derek has a higher or better score
plz give me brainliest
How many boxes should be shaded on the grid to show 3/8 x 3/4
Answer:
9 boxes
Step-by-step explanation:
how to describe transformation
is this a function or not a function explain why or why not
what’s 15/25 in its simplest form?
Answer: 3/5
Step-by-step explanation: Just divide both by 5.
Evaluate 8(6+5)/2²+6(2)
Answer:
34
Step-by-step explanation:
1. Add 6 and 5 and that multiplies with 8 which would be 88
2. Then divide by 4, leaving you with 22.
3. Add that with 6(2), 12, and that gives you 34
can you guys help with these questions??
Answer:
Step-by-step explanation:
<3 = 55° ( vertically opposite angles )
<4 = 180 - 105 = 75° ( linear pair )
<5 = 180 - ( 55 + 75 ) ( angle sum property of a triangle )
= 180 - 130
= 50°
<1 = <2 ( angles opposite to equal sides )
let < 1 and < 2 be x
55 + 2x = 180 ( angle sum property of a triangle )
2x = 180 - 55
2x = 125
x = 125 / 2
x = 62.5
therefore, < 1 = <2 = 62.5°
Hope this helps
plz mark as brainliest!!!!!!
If your breakfast costs $12 and you are
charged 9% sales tax, what is the total
cost of your meal?
Answer:
find 9% of 12
12 times 9 divided by 100
108/100
$1.08
12+1.08
Your mean costs $13.08
-Have a nice meal!
2 Write the equation of the line that goes
through (-2, 4) and is parallel to the line y = 1/2 x + 2
hi
if the twi lines are parallel , they have the same slope.
So slope is 1/2.
equation of a line is : mx +p
The line goes throught (-2 ; 4)
We have 1/2 ( -2) + p = 4
- 2/2 +p = 4
-1 +p = 4
p = 4+1
p = 5
equation of the line is y = 1/2x +5
Which of the following numbers is irrational?
0.13
✓3
-0.3
Can a linear function ever be even
or odd?
Can an exponential function ever be
even or odd?
Answer:
The exponential function x is neither. An exponential function is a sum of an even and an odd fuction. The even fuction is known as even x and odd function is known as x. the x is even function and sinx is odd function.
But thats if its an x funtion so uf its just a plain function its known to be even!
Step-by-step explanation:
Hopefully this helped, if not HMu and I will try my best to get you a better answer!
[6×(4−2)+(21×23+1)]÷32
Answer:
Step-by-step explanation:
15.5
Answer:
15.5 is your answer. can I solve. for these u say yes or no
2x-3=x+1
Show the work on what x is
Answer:
x=4
Step-by-step explanation:
Let's solve your equation step-by-step.
2x−3=x+1
Step 1: Subtract x from both sides.
2x−3−x=x+1−x
x−3=1
Step 2: Add 3 to both sides.
x−3+3=1+3
x=4
Answer:
x=4
2x - 1x = x
x-3= 1
3+1 =4
so x=4
The graph of f(x) = 7^x is stretched vertically by a factor of five. Which of the following is the equation of the new graph, g(x)?
A.
g(x) = 5^(7x)
B.
g(x) = 7(5^x)
C.
g(x) = 7^(5x)
D.
g(x) = 5(7^x)
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
[tex]g(x) = 5( {7}^{x} )[/tex]
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
The correct answer is (( D )) .
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
The Graph transformation of [tex]f(x) = 7^x[/tex] which stretched vertically by a factor of five is [tex]g(x) = 5(7^x)[/tex] .
What is graph transformation?Graph transformation is the process by which an existing graph, or graphed equation, is modified to produce a variation of the proceeding graph .
According to the question
The graph of [tex]f(x) = 7^x[/tex] stretched vertically by a factor of five .
i.e
we have to make change is graph equation so y axis changes 5 times .
Therefore ,
[tex]f(x) =( 7^x ) * 5[/tex]
The Graph transformation of f(x) is
[tex]g(x) = 5(7^x)[/tex]
Hence, the Graph transformation of [tex]f(x) = 7^x[/tex] which stretched vertically by a factor of five is [tex]g(x) = 5(7^x)[/tex]
To know more about Graph transformation here:
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Solve for p: 16p + 24 = 48
hi
16p +24 = 48
16p = 48-24
16p = 24
p = 24/16
P = 8*3 /8*2
p = 3/2
Answer:
3/2
Step-by-step explanation:
First move 24 to the other side. Therefore, you subtract 24 from 48 (48-24). You’re left with 16p= 48-24. That is 16p=24. Now we are trying to find p so we’re going to divide both sides by the coefficient of p which is 16. So, p= 24/16. Both 24 and 16 are multiples of 8 so you can simplify to p=3/2. Hope you understand!
In an asteroid field, 75% of the asteroids are carbonaceous asteroids. There are 375,000 carbonaceous asteroids in the asteroid field. How many asteroids are not carbonaceous? Asteroids are not carbonaceous.
Given:
In an asteroid field, 75% of the asteroids are carbonaceous asteroids.
There are 375,000 carbonaceous asteroids in the asteroid field.
To find:
The number of asteroids that are not carbonaceous.
Solution:
Let the total number of asteroids be x.
According to question,
[tex]75\%\text{ of }x = 375000[/tex]
[tex]\dfrac{75}{100}x=375000[/tex]
[tex]0.75x=375000[/tex]
Divide both sides by 0.75.
[tex]x=\dfrac{375000}{0.75}[/tex]
[tex]x=500000[/tex]
Asteroids not carbonaceous = Total asteroids - Carbonaceous asteroids
[tex]=500000-375000[/tex]
[tex]=125000[/tex]
Therefore, 125,000 asteroids are not carbonaceous.
Which of the following represents the lowest speed in miles per hour?
Answer:
need more to answer can you give like units or something
Step-by-step explanation:
Answer:
need more info
Step-by-step explanation:
What is the area of this figure?
4 mm
4 mm
12 mm
13 mm
9 mm
4 mm
12 mm
QUESTION OF THE DAY: Judy is recreating a small version of the Statue of Liberty out of clay. The scale for the statue is 3 inches to 100 feet. If the actual height of the statue is 305 feet, what would the height of the model be in inches?
Answer:
184in
Step-by-step explanation:
Since the scale for the statue is 3 inches to 100 feet, we can say 3:100 as a ratio.
To find approximately 305 feet you must divide 305 by 100.
100 can go into 300 evenly 3 times. Since the ratio is 3:100 you should multiply how many times the 100ft fit into the 300ft and the 3in (3 x 3) which is about 9in.
One way we can do this is to divide the hight of the Statue by the model height:
305ft 20in = 15.25ft 1in or 184in (12in per foot).
And so for every inch of the model, it represents 15.25 feet.
For 305 it would be