Answer:
[tex]x + y = -2\\x-y=8[/tex]
Step-by-step explanation:
3 is the [tex]x[/tex], and -5 is the [tex]y[/tex].
1) Create two equations that add and subtract them.
[tex]x + y = -2\\x-y=8[/tex]
2) Check whether you get the same answer (3,-5) or not. To do so, you need to solve them simultaneously using the elimination or substitution method. I will demonstrate using the substitution method.
[tex]x = -2 - y\\x-y=8\\(-2 - y) -y =8\\-2-2y=8\\-2y = 8 + 2\\-2y = 10\\y = \frac{10}{-2} \\y = -5[/tex]
To find [tex]x[/tex], substitute the result into one of the two equations. I choose [tex]x+y=-2[/tex].
[tex]x-5=-2\\x = -2 +5\\x = 3[/tex]
Heeeeeeeeeeelllllllllllllllllllllpppppppppppp
Answer:
Hope it helps you......
∠2 and ∠4 are "blank" angles.
Answer:
angles 4 and 2 are congruent
Step-by-step explanation:
the same
What is the distance between the points(-4,-1) and (-6,8) in simplest radical form.
[tex]~~~~~~~~~~~~\textit{distance between 2 points} \\\\ (\stackrel{x_1}{-4}~,~\stackrel{y_1}{-1})\qquad (\stackrel{x_2}{-6}~,~\stackrel{y_2}{8})\qquad \qquad d = \sqrt{( x_2- x_1)^2 + ( y_2- y_1)^2} \\\\\\ d=\sqrt{[-6 - (-4)]^2 + [8 - (-1)]^2}\implies d=\sqrt{(-6+4)^2+(8+1)^2} \\\\\\ d=\sqrt{(-2)^2 + 9^2}\implies d=\sqrt{85}[/tex]
last number of 1²+2²+...+2007²
Answer:
4028054 is the last number when we operate it....
2. Brian thinks that 1.75 x 10-3 is less than 1.25 10-2. Is he correct? Justify your answer.
Answer:
Yes
Step-by-step explanation:
write the equation of the circle with a center at ( 2, -4 ) and a radius of 4
[tex]\textit{equation of a circle}\\\\ (x- h)^2+(y- k)^2= r^2 \qquad center~~(\stackrel{2}{ h},\stackrel{-4}{ k})\qquad \qquad radius=\stackrel{4}{ r} \\\\\\\ [x-2]^2~~ + ~~[y-(-4)]^2~~ = ~~4^2\implies (x-2)^2~~ + ~~(y+4)^2~~ = ~~16[/tex]
Complete the two-way frequency table below, which shows the
distribution of blood types for students in their first year at a local
college.
O AB AB Total
Male (M) 210 17474 42
Female (F)|31526111163
Total
What is P(ABM), and are the events "the student is male" and "the
student has blood type AB" independent events? (7 points)
а
21
; they are independent because P(M N AB) = P(M)
250
· P(AB)
Ob
T!
; they are dependent because P(M NAB) P(M) · P(AB)
5
Ос
21
; they are independent because P(M N AB) = P(M)
625
P(AB)
Od
1
--; they are dependent because P(M N AB) = P(M) · P(AB)
4
Answer:
a.
Step-by-step explanation:
Probability that is a AB type blood given is a Male
P(AB/M) = 42/500 = 21/250
Probability that they are Male with an AB type blood out of all AB type blood people = Probability that is a Male out of all students
P(M∩AB) = P(M)
(42/105) = (500/1,250)
.4 = .4 ✅
The events "the student is male" and "the student has blood type AB" are independent events.
It has taken me 32 minutes to drive 48 km. If the total length of my journey is 146 km and I
maintain the same speed, estimate how much longer I will be driving for.
The sum of, half of a number and double the number is 20. Find the number.
Answer:
The number is 8.
Step-by-step explanation:
Rewrite the word problem as an equation.
The sum of (we will be adding.), half of a number (we can use x, this will be written as x/2.) and double the number (this will be written as 2x) is 20.
To find the number, solve the equation.
x/2 + 2x = 20
Multiply both sides by 2.
x + 4x = 40
Combine terms.
5x = 40
Divide both sides.
x = 8.
Answer:
i think 8 is the answer
Step-by-step explanation:
i am sorry if i am worng
HELP MEEEEE THIS IS DUE IN 2 HOURSSS
8th Grade Math!!
find the area of the rectangle.
the area of the rectangle is __ square feet. (simplify your answer)
Answer:
[tex]48x^{13}\ ft^2[/tex]
Step-by-step explanation:
Step 1: Determine the area of the rectangle
To find the area of the rectangle we just need to do Length * Width which will give us the area in square feet (it really depends on the units that they are giving the L and W in).
[tex](8x^6) * (6x^7)[/tex]
[tex]((8*6)(x^6*x^7))[/tex]
[tex](48*x^{6+7})[/tex]
[tex]48x^{13}[/tex]
Answer: [tex]48x^{13}\ ft^2[/tex]
Mary reduced the size of a painting to a
width of 5.4 in. What is the new height if it
was originally 46.5 in height and 32.7 in width?
Round to nearest tenth of an inch.
By finding the scale factor as a quotient of the two given widths, we will see that the new height is 7.7 in
How to get the new height?
We assume that the height and the width are reduced by the same scale factor.
Such that the scale factor is given by the quotient between the new width and the original width, so we have:
k = 5.4in/32.7in = 0.1651
Then the new height will be the original height times the above number, which gives:
H = 0.1651*46.5 in = 7.7 in
We conclude that the new height of the painting is 7.7 inches.
If you want to learn more about scale factors, you can read:
https://brainly.com/question/3457976
I will give Brainliest!!!
A savings account was opened and not touched for 4 years. The amount of money in the account grew by a consistent percentage at the end of each year. Complete the missing values in the table.
Can someone help me I need this done ASAP like TODAY… I know D. I just dont know A, B, C. Please helppppppppp meeeeeeeeee
Answer:
Please see explanation
Step-by-step explanation:
base= -3
the exponent is 5
in expanded form -3×-3×-3×-3×-3
evaluation = -3×-3×-3×-3×-3= -243
Five friends share 4 bags of trail mix equally.
What fraction of a bag of trail mix does each friend get?
please hurry
Rectangle A'B'C'D is a dilation of rectangle ABCD What is the scale factor? Enter your answer in the box.
The scale factor is 4
Divide $3600 among Nancy Beverly and Todd in the ratio 2:3:4?
Answer:
nancy: $800, beverly: $1200, todd: $1600
Step-by-step explanation:
finding the portion of one part of the ratio:
3600 ÷ 9 = 400 (9 came from 2 + 3 + 4 in the ratio)
Nancy: 2 x 400 = $800
Beverly: 3 x 400 = $1200
Todd: 4 x 400 = $1600
checking the answer:
1600 + 1200 + 800 = 3600
Triangle ABC is a right triangle, and mC is 78°.
What is mA?
A. 2°
B. 12°
C. 22°
D. 32°
Answer:
[B] 12°
Step-by-step explanation:
Given:
Triangle ABC is a right triangle, and m∠ C is 78°.
Solution:
Knowing that Triangle = 180 degree
Square in a right angle = 90° angle.
Thus,
78+90 =168
180-168 is 12
Hence, the answer is [B] 12 degree
Kavinsky
Answer:
the answer is
Step-by-step explanation:
B
A photograph has a length that is 6 inches longer than its width,x. So it's area is given by the expression x(x+6) square inches.
Answer:
The width of the photograph is 8 inches
Step-by-step explanation:
hopefully im right
Jack went to baseball practice at 5:45 p.m. He returned home at 8:22 p.m. How long was he gone for? SHOW YOUR WORK PLEASE
Answer:
2 hours and 37 mins
Step-by-step explanation:
you want to get to a full hour so 5:45 closes hour would be 15 minutes later which would be 6:00 and then you add 2 hours which would be 8:00 and you have 22 minutes to get 822 p.m. so you add the minutes together 15 + 22 which you'll get 37 and you'll have the 2 hours on the side so it would be 2 hours and 37 minutes
4. Convert: 32 cups = gallons 10 gallons 3 gallons 2 gallons 1 gallon
Answer:
2 gallons
Step-by-step explanation:
:/
What is the area of the following figure?
35 mm 2
3 mm 2
75 mm 2
105 mm 2
Answer: [tex]75mm^2[/tex]
Step-by-step explanation:
The formula for the area of a paralellogram is:
bh=a
Where
b is the base (15 for this)
h is the height (5 for this)
and a is the area
Let's sub our values into the formula
[tex]bh=a\\(15)(5)=a[/tex]
Now solve
[tex](15)(5)=a\\75=a[/tex]
1/2 ÷ (-1/7) Answer in a mixed number
[tex]\sf{-3\displaystyle\frac{1}{2} }[/tex]
Solution:First, we need to flop the second fraction over.Then, we need to multiply the first fraction times the second fraction.In order to multiply fractions, we need to multiply the numerator of the first fraction times the numerator of the second fraction:[tex]\displaystyle\frac{1}{2} *-\frac{7}{1}[/tex][tex]-\displaystyle\frac{7}{2}[/tex]Now, let's convert the improper fraction into a mixed number.First, how many times does 2 go into 7? (evenly)The answer is 3.Now, multiply 3 times 2. We get 6.Subtract 7-6. We get 1.The denominator stays the same.Therefore, the answer is[tex]-3\displaystyle\frac{1}{2}[/tex]Hope it helps.
Do comment if you have any query.
Step-by-step explanation:
[tex] = \frac{1}{2} \div ( - \frac { 1}{7}) \\ [/tex]
Move the ( - ) sign forward
[tex] = - \frac{1}{2} \div \frac{1}{7} \\ [/tex]
[tex] = - \frac{1}{2} \times \frac{7}{1} \\ [/tex]
[tex] = - \frac{7}{2} \\ [/tex]
what can you add to get negative 8 and multiple to get positive 7
Step-by-step explanation:
-1 and 8 Below we prove the -1 and 8 multiple to -8 and add up to this -1 × 8= -8
When x^2 + bx + 2 is divided by
X + 3, the remainder is 5. find the value of b
Answer:
b = 2
Step-by-step explanation:
Let f(x) = x² + bx + 2,
[tex]f( - 3) = 5 \\ {( - 3)}^{2} - 3b + 2 = 5 \\ 11 - 3b = 5 \\ 3b = 6 \\ b = 2[/tex]
If you draw out a red marble, keep it, then draw out a
blue marble, is it independent or dependent probability?
Independent
Answer:
dependent
Step-by-step explanation:
the probability of drawing the blue marble was changed when you drew the red marble and did not put it back
PLEASE HELP!!!
Triangle DEF is similar to triangle ABC. What is the sequence of transformations that maps triangle ABC to DEF?
The sequence that maps ΔABC to ΔDEF are represented by three transformations: a horizontal and vertical translation and a counterclockwise rotation.
What transformations have been done to a obtain a resulting triangle?
According to Euclidean geometry, a transformation is rigid if and only if Euclidean distances are conserved for every point of the figure. It is to be noticed that there is more than one manner to obtain the resulting figure.
After a careful inspection both on the statement and on the figure, we conclude that the following sequence of transformations:
Translation of 2 units in the -x direction.Translation of 2 units in the -y direction.Rotation around the point D of 0.5π counterclockwise.To learn more on rigid transformations, we kindly invite to check this verified question: https://brainly.com/question/1761538
Help me for 10 help me please
Answer:
Answer:
what do u need help in?
pls help me worth 50 points + brainliest
(i only can give brainliest if 2 PEOPLE answer)
Answer:
The answer would be four dresses.
Step-by-step explanation:
Step 1. Do 16 divided by 3.67
Step 2. Get the answer of 4.53...
Step 3. Round down because it's the number of whole dresses
Step 4. Get the answer of 4.
Hope this helps! Btw, I don't need Brainliest if the other person wants it.
Answer:
They can make 4 dresses
Step-by-step explanation:
Since it is 3.6667 yards per dress, and the amount they have is 16 yards, divide the amount they have by number of yards per dress to get slightly over 4. Since you can't make a percent of a dress, the answer would be 4.
can someone help mepleace
Answer:Click on the file below
Step-by-step explanation: