Answer:84
Step-by-step explanation:
-8+92
Lo puedes dar la vuelta
92-8= 84
Answer:
84
Step-by-step explanation:
So -8 + 92 = 92 - 8
92
- 8
______
84
So, -8 + 92 = 84
hope this helps:)
please help solve h(t) =-16t^2+40t+20
Answer: el último
Step-by-step explanation:
What is the best approximation of the length of the radius in a circle with an area of 167 m2?
a. 4.6 meters
b.4.0 meters
c. 2.3 meters
d.5.1 meters
Answer:
r = 7.3 m
Step-by-step explanation:
A = (pi)(radius)^2, so, if A = 167 m^2, r^2 is found as follows:
167 m^2
r^2 = -------------- = 53.158 m^2
3.14
Taking the square root of both sides, we get
r = 7.3 m
This is correct, because A = (pi)(radius)^2 becomes (3.14)(7.3 m)^2 = 167.4 m^2
Solve for y. 4- 2y + 8 = -6 y = [?]
Answer:
y=9
Step-by-step explanation:
4-2y+8=-6
-2y=-4-8-6
-2y=-18 divide by -2 both side
y=-18/-2
y=9
I need to find the area of the right shape.
Answer:
i believe it is 70
Step-by-step explanation:
6×12=72
6-4=2
72-2=70
HELP DUE IN 60 MINS!
Round to the nearest tenth
1. Length of HF =??
Round to the nearest tenth
2. Length of EG =??
3. What kind of quadrilateral is this?
Parallelogram
Rectangle
Rhombus
Square
Trapezoid
Kite
Answer:
Use distance formula to find the length of the segments
1. H = (-3, 0), F = (3, 2)
HF = [tex]\sqrt{(3 + 3)^2+2^2} = \sqrt{40}[/tex] = 6.3 (rounded)2. E = (1, 4), G = (-1, -2)
EG = [tex]\sqrt{(-1 - 1)^2+(-2-4)^2} = \sqrt{40}[/tex] = 6.33. We see the diagonals are congruent, opposite sides are parallel.
The above is the property of a rectangle
Someone help me solve all this + include working out.
Will mark as brainliest. Thanks
Answer:
We know that P(x) = 30*x^3 + k*x^2 + 1
a) If (3x - 1) is a factor, let's find the value of k.
Because the degree of the original polynomial is 3, and the degree of the factor is 1, we should multiply it by a polynomial of degree 2.
Then:
30*x^3 + k*x^2 + 1 = (3*x - 1)*(a*x^2 + b*x + c)
30*x^3 + k*x^2 + 1 = 3*a*x^3 + 3*b*x^2 + 3*c*x - a*x^2 - b*x - c
30*x^3 + k*x^2 + 1 = 3*a*x^3 + (3*b - a)*x^2 + (3*c - b)*x - c
The terms with the same exponent should be equal, then:
30*x^3 = 3*a*x^3
30 = 3*a
30/3 = a = 10
k*x^2 = (3*b - a)*x^2
k = (3*b - 10)
0*x = (3*c - b)*x
0 = (3*c - b)
b = 3*c
and
1 = -c
then:
c = -1
Replacing this in the equation: b = 3*c
we get: b = -3
Replacing this in the equation for k, we get:
k = (3*b - 10) = (3*-3 - 10) = -19
k = -19
And we can write:
P(x) = (3*x - 1)*(10*x^2 - 3*x - 1)
b) Now we want to write P(x) as a product of its linear factors.
Then we need to factorize the quadratic part:
We need to solve
10*x^2 - 3*x - 1 = 0
We can use the Bhaskara's equation to get the solutions:
[tex]x = \frac{-(-3) \pm \sqrt{(-3)^2 - 4*10*(-1)} }{2*10} = \frac{3 \pm 7}{10}[/tex]
Then the two zeros of that polynomial are
x = (3 + 7)/10 = 1
x = (3 - 7)/10 = - 4/10 = -2/5
So we can write the polynomial as:
10*(x - 1)*(x - (-2/5))
Replacing this in the equation of P(x) we get:
P(x) = (3*x - 1)*10*(x -1)*(x + 2/5)
= 10* (3*x - 1)*(x -1)*(x + 2/5)
So P(x) is written as a product of lineal factors.
C) The zeros of the polynomial are the values of x such that one of the factors becomes equal to zero.
For the first factor, we have a zero at x = 1/3
for the second, we have a zero at x = 1
for the third one, we have a zero at x = -2/5
find the perimeter of this four sided figure: 8, 17, 22, x
Answer:
255
Step-by-step explanation:
Once split up you find the are of the rectangle which is 8*17=136
Then since the bottom line is 22, you do 22-8 to find the bottom line of the triangle.
The area of the triangle is 17*14/2=238/2
Hence, 119
Hope it helps!
Answer:
63
Step-by-step explanation:
I hope
Find the equation of a line that passes through points (9,3) and (-6,5)?
Answer:
Y= X - 31.5
Step-by-step explanation:
find the gradient then the equation
Answer:
y-3 = -2/15 (x-9)
Step-by-step explanation:
First, we should find the gradient, m, which is [tex]\frac{rise (change.in.the.y.value)}{run (change.in.the.x.value)}[/tex]
This is [tex]\frac{3-5}{9-(-6)} =-\frac{2}{15}[/tex]
A linear (straight) line has a general equation y=mx+c
y = [tex]-\frac{2}{15\\}[/tex]x+c
We can rewrite the equation into the general form:
y-y1 = m(x-x1)
where y1 is the value of a y coordinate and x1 is the x value of the coordinate that the y1 value was taken from.
This stems from the idea that 0 = 0.
To make that equation true, we can make both sides equal to 0.
To do that, y - y1 has to be - and x-x1 has to be zero. m can be ignored as anything multiplied by 0 is 0.
Up until here, y1 and x1 are arbitrary constants. They are values that we have to find. However, we don't actually. We have coordinates that the x and y will equal to. (9,3)
Because 9 - 9 = 0 and 3 - 3 = 0, we can state that the value of y1 is 3 and x1 is 9.
Hence, the equation is y-3 = -2/15 (x-9)
You can rearrange the equation to make it into the form y = mx + c, but this is usually not necessary.
I hope this helped.
HELP EMERGENCY PLEASE!!!!
Find the percent of children who answered yes to the survey. Find the percent of children who answered no to the survey. Round each answer to the nearest tenth of a percent.
Answer:
31%
33%
Step-by-step explanation:
I'm not 100% sure. I tried my best.
Serafine went shopping and bought the following items:
SERAFINE'S SHOPPING LIST
1 loaf bread $2.99
1 jar peanut butter $3.19
3 pounds apples $2.59
She had one coupon for $0.25 off and another for $0.40 off. Which expression represents
the total amount she needs to pay?
A
B
$2.99+ $3.19+ $ 2.59+ $0.25 + $0.40
$2.99 + $ 3.19+ $ 2.59+($0.25 - $0.40)
c$2.99+ $3.19+ $ 2.59+(- 50.25 + $0.40)
$2.99+ $3.19+ $2.59+- $0.25)+(- $0.40)
D
Answer:
I am going to assume that D's expression is actually $2.99+$3.19+$2.59+(-$0.25)+(-$0.40)
= $6.18+$2.59-$0.25-$0.40 [Note: (+)*(-)=(-)]
=$8.77-$0.25-$0.40
=$8.52-$0.40
=$8.12
Step-by-step explanation:
The prices of the loaf bread, a jar of peanut butter and 3 pounds of apples will be added. The value of the coupons will be then reduced from the total to get the final total.
help! please also give some explanation too
Answer:
3960
Step-by-step explanation:
i dont know
my sister helped me hope i get it right
6 m
2 m
6 m
2 m
2 m
6 m
Answer:
24 im pretty sure.
Step-by-step explanation:
Find the midpoint and slope of the segment (4, 16) and (–8, 12).
Answer:
The midpoint is (-2,14) and the slope is m=1/3
Step-by-step explanation:
PLEASE HELP URGENTLY. Look at the given triangles.
Two triangles are shown
The blue triangle is a right triangle. The vertical leg is labeled with the expression 4 x plus 2. The horizontal leg is labeled with the expression 5 x minus 4. The hypotenuse is labeled with the expression 7 x plus 7.
The red triangle is a right triangle. The vertical leg is labeled with the expression x plus 3. The horizontal leg is labeled with the expression x plus 7. The hypotenuse is labeled with the expression 2 x minus 5.
a. Write an expression in simplest form for the perimeter of each triangle.
b. Write another expression in simplest form that shows the difference between the perimeter of the larger triangle and the perimeter of the smaller triangle.
Step-by-step explanation:
blue: 4x+2+7x+7+5x -4 = 16x +5
red: x+3+x+7+2x-5 = 4x -5
difference: 16x+5 - (4x -5) = 12x +10
A linear function is graphed below.
What is the equation of this line when it
is translated 4 units down?
А y=1/3x-3
B y = 3x-3
C y=1/3x+1
Dy = 3x+1
what job do you want
Answer:
photography
Step-by-step explanation:
Daniel solves the equation 3(x+1)-5=3x-2 and states that it has no solution. Is he correct?
Explain why and why not.
Answer:
He is incorrect
Step-by-step explanation:
Given
3(x + 1) - 5 = 3x - 2 ← simplify left side
3x + 3 - 5 = 3x - 2
3x - 2 = 3x - 2
Since both sides are equal, then this indicates that the equation has infinite solutions.
does anybody know the answer?
What is the volume of the cereal box?
cereal
(Height)18 in
(Length)3in
(W)12 in
which of the following is the correct expanded form for the series below?
Answer:
A. 7 + 7/2 + 7/3 + 7/4Step-by-step explanation:
This is the sum of the first 4 terms, substitute n for each term:
4
∑ [tex]\frac{7}{n}[/tex] = 7/1 + 7/2 + 7/3 + 7/4
n=1
Correct choice is A
[tex] \displaystyle \sum^{4} _{n = 1} \: \frac{7}{n} = \: 7 + \frac{7}{2} + \frac{7}{3} + \frac{7}{4} [/tex]
Please help will give brainliest
Answer:
D
Step-by-step explanation:
40% = [tex]\frac{40}{100}[/tex] = [tex]\frac{2}{5}[/tex] ← in simplest form
Then
[tex]\frac{2}{5}[/tex] of $120 = [tex]\frac{2}{5}[/tex] × $120 = 2 × $24 = $48
she pays $120 - $48 = $72
A deli offers 3 different kinds of bread and 8 different kinds of toppings on its submarine sandwiches. How many different sandwiches are possible?
Answer:
I think too that many different will be there in case such things ..
Which statement correctly compares the two functions? GIVING BRAINLIEST!!
A. They have the same end behavior as x approaches infinity but they have different x- and y-intercepts
B. They have the same x-intercept and the same end behavior as x approaches infinity
C. They have the same x-intercept and the same y-intercept
D. They have the same y-intercept and the same end behavior as x approaches infinity
Answer:
A
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
just took the test
number 2 and number 3
I need help on this math problem plz show work and answer plz thx
Step-by-step explanation:
.............. just for filling 20 characters
Pls help timed test I don’t know how to do this and yeah
Help !!! Find the product of 5 x 2 and enter it in the so ABCD provided
Answer:
10
Step-by-step explanation:
5*2=10
2+2+2+2+2=10
Mhnaifa can you please help?
Answer:
1: 9
2: i dont know sorry
3: 21/2
Step-by-step explanation:
1: know that the bottom portion of the triangle is 18 the bottom left is 12 and the top left is 6. Now you could say that its six because they look the same size but we cant be sure, and six isnt an option. i dont know how to solve so we're using process of elimination so bare with me. we alread have 12 and 18 and theyre way bigger, it cant be 11 because it wouldnt be that small. so in my mind its 9.
2: n/A
3: because i said so
Answer:
#1
AQ/QC = AP/PBAQ / 18 = 6 / 12AQ = 18/2AQ = 9Option D
#2
x/ 12 = 10 / 24x = 12*10/24x = 5#3
(x - 8)/5 = 2/42(x - 8) = 52x - 16 = 52x = 21x = 21/2Option B
–7 + 5j = 8j − 10
please help i really need it
Answer:
J = 1
Step-by-step explanation:
-7 + 5(1) = 8(1) - 10
-7 + 5 = 8 - 10
-2 = -2
j=1
A gallon of milk costs $3 nowIf the price is increasing 10% per year, how long before a gallon of milk costs $10 a gallon? Round your answer to the nearest thousandth, and you do not need to include units
Answer:
The answer is 33 years.
Step-by-step explanation:
10% of 3 is .3
Just move the decimal to the left.
.3 times 33=9.9
9.9~10