Answer:
Following on from step 3
0 = (x + 1)(x + 3)
equate each factor to zero and solve for x
x + 1 = 0 ⇒ x = - 1
x + 3 = 0 ⇒ x = - 3
Substitute these values into either of the 2 equations for the corresponding value of y
using y = 2x + 11
x = - 1 : y = - 2 + 11 = 9 ⇒ (- 1, 9 )
x = - 3 : y = - 6 + 11 = 5 ⇒ (- 3, 5 )
solutions are (- 3, 5 ) and (- 1, 9 ) <<<<<<< CORRECT
Step-by-step explanation:
The solutions that represents the system of the equation are (- 3, 5 ) and (- 1, 9 )
What is a system of equations?A system of equations is two or more equations that can be solved to get a unique solution. the power of the equation must be in one degree.
0 = (x + 1)(x + 3)
By equating each factor to zero and solve for x
x + 1 = 0 ⇒ x = - 1
x + 3 = 0 ⇒ x = - 3
Substitute these values in 2 equations for the corresponding value of y
using y = 2x + 11
x = - 1
y = - 2 + 11 = 9 ⇒ (- 1, 9 )
x = - 3
y = - 6 + 11 = 5 ⇒ (- 3, 5 )
Therefore, the solutions are (- 3, 5 ) and (- 1, 9 )
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Please explain how you got the answer.
Answer:
C
Step-by-step explanation:
1/3 is part of a whole number (3/3). So it still is an integer, but it is not a whole number- all fractions and decimals are like this.
Answer:
c
Step-by-step explanation:
1/3 is rational it's not infinite or anything
however it's not a whole number (whole numbers being (1, 2, 3,...etc.)
pls help me with this math problem
Answer:
You can use this formula
A = 2 (wl + lh + hw)
to soslve that
Step-by-step explanation:
Helppp! what are the answers
Answer:
5.4 inches 0.15 yardsStep-by-step explanation:
hope it's helpful
Find the Volume for the above figure.
Hint: Find the volume of each prism, then add together to get total volume
What is the area of the shaded region?
Answer:
if pi is 3.14: 163.52 [tex]m^2[/tex]
if pi is just π: 264 - 32π [tex]m^2[/tex]
Step-by-step explanation:
22 x 12 = 264
4 x 4 = 16
16 x 2 = 32
16 x 3.14 = 50.24
264 - 50.24 x 2 = 163.52
Answer:
163.47
Step-by-step explanation:
We know the area of the whole rectangle by multiplying 12 by 22 to get 264. Now we just have to find the area of the circles and subtract it from the rectangle.
The area of a circle is πr^2. These circles' radii is 4, so 4^2π = 16π
Since there are 2 circles, double 16π to get 32π, 32π is equal to 100.53096491, rounded to 100.531. 264 - 100.531 = 163.469, rounded to 163.47
What is 34.69$ + 9% (will give brainliest) (explain how you got your answer)
Answer:
37.8121
Step-by-step explanation:
you take 34.69$ and multiply it by 1.09
Find the missing side length of the right triangle
using the Pythagorean Theorem or PT converse.
A) 41 in
B) 29 in
C) 6 in
D) 841 in
At science camp, the kitchen served half of their blueberries with breakfast. After dinner, they put the remaining 5,270g, end text of berries on top of their ice cream dessert.
How many kilograms of blueberries did the science camp start with?
_____ kilograms?
The science camp started with 10.54 kilograms of blueberries.
To find the number of kilograms of blueberries the science camp started with, first need to calculate the initial weight of the berries.
Given that the remaining weight of blueberries after dinner was 5,270g, and this represents half of the total blueberries served, we can determine the total weight before serving by doubling the remaining weight.
Double the remaining weight: 5,270g x 2 = 10,540g
Now, we need to convert the weight from grams to kilograms since we're looking for the weight in kilograms.
1,000 grams in a kilogram, so we can divide weight in grams by 1,000.
Weight in kilograms: 10,540g ÷ 1,000 = 10.54kg
Therefore, the science camp started with 10.54 kilograms of blueberries.
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Please help meeee PLEASEE no links :(
Answer:
C
Step-by-step explanation:
Please help due soon
Answer:
x = 7, y = 26
Step-by-step explanation:
y= 3x + 5
substitute into the second equation
2(3x + 5) = 4x + 24
6x + 10 = 4x + 24
2x = 14
x = 7
y= 3(7) +5
y = 26
The equation of the trend line is y = -0.36x + 12.6.
Use the equation of the trend line to predict the wind chill for a wind speed of 1 mi/h. Round your answer
to the nearest degree.
The wind chill at 1 mi/h is
°F.
Answer:
9.72°F
Step-by-step explanation:
I think that's right :)
Help, this is a warm up for my math class. :)
Answer:
Step-by-step explanation:
9=-3(e-2)
9=-3e+6
9-6=-3e
3/-3=e
-1=e
Answer:
Sharon is wrong in step 2.
Step-by-step explanation:
So, basically we need to look at how Sharon step by step solved this problem.
We need to check her work by solving it ourselves, and seeing what she did wrong.
So we have:
9=-3(e-2)
The first thing that we need to do is distrubute the -3 to the e and -2:
9=-3e+6
This is looks like step 1 of Sharon's work.
Now, we need to get -3e alone by getting all the numbers to one side. This means we need to get rid of the 6 by subtracting 6 from both sides:
3=-3e
This doesnt look like what Sharon got.
She has:
15=3w
How did she do this? Note everything from here to the next bolded words explains her incorrect method of solving.
Well, what if we factor out a negative sign, making -3e into 3e?
This would make +6 into -5.
Then you would get:
9=-(3e-6)
The reason why you CANNOT do this is one problem.
Anything that has been factored(basically a value that has had something taken from it), such as the - in our case, cannot be subtracted or added to another number.
The reason you cannot subtract or add a factored number is it changes the value of the answer. So pretty much subtracting and adding factored numbers is BIG NO NO.
Back to how we solve for e.
So we have already gotten to step 2 with:
3=-3e
Lets get e alone by dividing both sides by -3.
3/-3=-1.
-3e/-3 = e.
So our answer, in step 3 is:
-1=e
This is not needed for your answer, and only shows how you can double check your answer.
So if oyu arent 100% sure with this, lets double check.
We got -1 as e, so lets plug it into our orginal equation:
9=-3(e-2)
Plug in -1:
9=-3(-1-2)
Distrubute the -3:
9=3+6
Add together the numbers:
9=9
This is correct!
Hope this helps!
Solve for n.
–2(n + 2) + 6 = 8
n =
Answer:
n = -3Step-by-step explanation:
Answer:
n = -3
Step-by-step explanation:
We have the equation –2(n + 2) + 6 = 8. First, we simplify it:
–2(n + 2) + 6 = 8
–2(n + 2) = -2n + (-4) = -2n - 4
So now we have:
-2n - 4 + 6 = 8
We can subtract 6 from both sides of the equation to get:
-2n - 4 = 2
We can also add 4 to both sides to get:
-2n = 6
Divide both sides by 2 to get:
-n = 3
Multiply both sides by -1 to get:
n = -3
Please help this is due today
Answer:
1. 3.6723912745
2. 0.4545678933
3. 4.1269591678
Step-by-step explanation:
- 7th Grade Work -
Please answer if it's either a, b, c, or d
Please help ; - ;
Answer:
ans-a 25x - 10
Step-by-step explanation:
7x+9x+9x = 25x
-3-3-4 = -10
so, 25x-10.
stay safe, stay healthy and blessed.
thank u
PLSS HELP I WILL GIVE BRAINLIEST 6 +-12
Answer:
Your answer is -6
Step-by-step explanation:
Hope this helps :3
Answer:
The answer to the problem is -6.
What is the distance from A to B along the S-shaped curve?
NEED HELP. question in image
Answer:
Is it 8,910. If not I’ll try and answer again
Step-by-step explanation:
Polygons that have equal sides and equal angles are considered ________ polygons.
irregular
regular
none of the above
normal
Answer:
regular
Step-by-step explanation:
Answer: Regular.
Step-by-step explanation:
Hope this helps! :)
What is the area of the rectangle?
0 10 units2
0 20 units2
0 24 units2
0 48 units2
Luis put out
6
6 different pies at a picnic. At the end of the picnic, he noticed this about about the pies:
One whole apple pie was eaten, and
3
4
4
3
of another apple pie was eaten
1
2
2
1
of the blackberry pie was eaten
1
8
8
1
of the blueberry pie was eaten
5
8
8
5
of the cherry pie was eaten
3
4
4
3
of the peach pie was eaten
What is the total amount of Luis' pies that were left over?
Answer:
2 1/4 pies
Step-by-step explanation:
Find out how much pie was leftover from each pie:
Apple pie: 3/4, 4 - 3 = 1, 1/4
Blackberry: 1/2, 2 - 1 = 1, 1/2
Blueberry: 1/8, 8 - 1 = 7, 7/8
Cherry: 5/8, 8 - 5 = 3, 3/8
Peach: 3/4, 4 - 3 = 1, 1/4
There are 1/4, 1/2, 7/8, 3/8, and 1/4 pies left. The LCD if these numbers is 8, since 2*4 = 8, 4*2 = 8, and 8*1 = 8
1/4 = 2/8
1/2 = 4/8
7/8 = 7/8
3/8 = 3/8
1/4 = 2/8
2 + 4 + 7 + 3 + 2 = 18, so 18/8 pies, or 2 2/8, or 2 1/4
What is the value of F ?
Step-by-step explanation:
110+ f =180
f = 180-110
f=70
Answer:
here is your answer......
Step-by-step explanation:
f plus 110=180 ( because being straight line)
or; f= 180-110
or; f=70
therefore,f=70
the value of f is 70 degree
What is the value of Z ?
Answer:
z=130°
Step-by-step explanation:
These are supplementary angles so
z=180-50=130°
Answer:
130
Step-by-step explanation:
That is a straight angle. It has 180 degrees, correct? So you'd have to subtract 180-50 to get your answer of 130.
rewarding brainly for correct answer
PLEASEEEEEEEEEEE ANSWER WILL BE CROWNED BRAINLIEST
Answer:
RPS =19
Step-by-step explanation:
A right angle is 90 degrees
The two angles add to a right angle or 90 degrees
RPS + QPR = QPS
RPS + 71 = 90
RPS = 90-71
RPS =19
What is the volume of the triangular prism? *
288 cu cm
188 cu cm
144 cu cm
96 cu cm
Answer: 144
Step-by-step explanation:
No need explanation
What expressions are equivalent to 6v + 2v + 4?
Answer: 15v
Step-by-step explanation:
Mr. Mendel likes breeding different flowers in his garden. He noticed that when he breeds a white flower with a purple flower, most of the offspring are purple. To check that, he bred them again and obtained 181818 offspring, and 151515 of them were purple. Let's test the hypothesis that the offspring have equal chances of 50\%50%50, percent of being either white or purple versus the alternative that the chance of a purple offspring is greater. The table below sums up the results of 100010001000 simulations, each simulating 181818 offspring with a 50\%50%50, percent chance of being white or purple. According to the simulations, what is the probability of having 151515 purple offspring or more out of 181818? \qquad Let's agree that if the observed outcome has a probability less than 1\%1%1, percent under the tested hypothesis, we will reject the hypothesis. What should we conclude regarding the hypothesis? Choose 1 answer: Choose 1 answer: (Choice A) A We cannot reject the hypothesis. (Choice B) B We should reject the hypothesis. \##\# of purple offspring out of 181818 Frequency 000 000 111 000 222 111 333 333 444 121212 555 333333 666 717171 777 121121121 888 167167167 999 184184184 101010 167167167 111111 121121121 121212 717171 131313 333333 141414 121212 151515 333 161616 111 171717 000 181818 000
Answer:1
Step-by-step explanation:1+1
The solution is, when Mendel cross-pollinated true-breeding purple flowering plants and true-breeding white flowering plants, purple flowers are obtained.
What is blended inheritance?Blended inheritance is a form of inheritance which combines characteristics from both parents. It occurs when the genetic contribution from each parent is not distinct, and instead, the traits of both parents are combined in the offspring. It is also known as "mosaic inheritance" or "mixed inheritance". It can occur in both plants and animals. Blended inheritance is different from Mendelian inheritance, which involves the segregation of individual traits from each parent.
here, we have,
This result showed that the traits for flower color were inherited in a non-blended manner, with one dominant trait (purple flower color) masking the recessive trait (white flower color).This experiment contradicts the idea of blended inheritance, which states that the traits of offspring are a blend of the traits of the parents. Mendel’s experiments showed that traits were passed on in a discrete and non-blended manner, with the dominant trait being fully expressed in the offspring and the recessive trait not being expressed at all.
Therefore, purple flowers are obtained when Mendel cross-pollinated.
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Find The Area of The Composite Figure
Answer:
Area = 25 square units
Step-by-step explanation:
Parallelogram : b =(6 - 1) = 5 h, = 2
Rectangle : length= (8 - 3) = 5units, width= (5 - 2) = 3 units
Area of Parallelogram = b x h = 5 x 2 = 10
Area of Rectangle = Length x Breadth = 5 x 3 = 15
Total Area = 10 + 15 = 25 square unit
Can someone help?
A hill used for snowboarding has a vertical drop of 3500 feet. The angle the run makes with the ground is 18 degrees. Estimate the length of the run, r. Show answer to nearest tenth. show comma in answer if needed
Length = ? ft.
Answer:
run = 1081.6 ft
Step-by-step explanation:
sin = opp/hyp
sin18 = 3500 / run
run = 3500 / sin18
run = 1081.6 ft