Answer:
24.5 unit²
Step-by-step explanation:
Area of ∆
= ½ | x₁(y₂ - y₃) + x₂(y₃ - y₁) + x₃(y₁ - y₂) |
= ½ | (-1)(3 -(-4)) + 6(-4 -3) + (-1)(3 - 3) |
= ½ | -7 - 42 |
= ½ | - 49 |
= ½ (49)
= 24.5 unit²
Method 2:
Let the vertices are A, B and C. Using distance formula:
AB = √(-1-6)² + (3-3)² = 7
BC = √(-6-1)² + (-4-3)² = 7√2
AC = √(-1-(-1))² + (4-(-3))² = 7
Semi-perimeter = (7+7+7√2)/2
= (14+7√2)/2
Using herons formula:
Area = √s(s - a)(s - b)(s - c)
here,
s = semi-perimeter = (14 + 7√2)/2
s - a = S - AB = (14+7√2)/2 - 7 = (7 + √2)/2
s - b = (14+7√2)/2 - 7√2 = (14 - 7√2)/2
s - c = (14+7√2)/2 - 7 = (7 + √2)/2
Hence, on solving for area using herons formula, area = 49/2 = 24.5 unit²
Answer:
24.5
Step-by-step explanation:
To find the area with the coordinates provided:
(-1,3), (6,3), (-1,-4)
First we count the units that are inside the triangle which is area.
[tex]\frac{49}{2}[/tex]
So we know that there are [tex]\frac{49}{2}[/tex] units and then we divide 49 by 2 which gets you 24.5.
49 ÷ 2 = 24.5
The answer is 24.5 units.
What is the common ratio for geometric sequence: 5,15,45,135 ?
Answer:
the common ratio is 3
Step-by-step explanation:
to solve for the common ratio, I like to take the second term and divide it by the first term
15/5 = 3
then I will check the rest of the terms
15*3 = 45
45*3 = 135
It looks like the common ratio is correct!
What is the slope-intercept form of this equation?
8x + y = 12
Answers:
Y= 2/3x + 2
Y= 4/3x + 6
Y= -4/3x + 6
Y= -4/3x + 2
Answer:
y = -8x + 12
Step-by-step explanation:
Slope intercept form: y = mx + b
m ---> Slope & b ----> y-intercept
8x + y = 12
Subtract 8x from both sides
y = -8x + 12
How many halves are equivalent to 4/8
Answer:
2 : 2/4 and 1/4
Step-by-step explanation:
4/8 can be simplified to 2/4 and then 1/4
Emma has collected information about the cats and dogs that children in her class have as pets
there are 30 pupils total
find the number of children having both cats and dogs as pets
a.4
b.8
c.12
d.16
Answer:
c. 12
Step-by-step explanation:
the answer is c.12 due to the table
How do you graph a quadratic function?
Answer:
Step-by-step explanation:
Compare the equation with the standard form, y=ax2+bx+c . Since the value of a is positive, the parabola opens up.
So, y=0 implies, by the zero product property, x+4=0 or x−2=0 .
Substitute x=−1 in the equation y=−x2−2x+8 to find the y -coordinate of the vertex.
suppose you have a bag of 25 marbles and 3 of the marbles are white.If you choose one without looking, what is the probability you choose a white marble? Write this probability as a percent . Use a word or phrase to describe this probability.
Answer:
3/25
THERE IS AN 11% CHANCE
can i get brainliest
Step-by-step explanation:
Answer:
12%
Step-by-step explanation:
3 is 12% of 25. So you would have a 12 percent chance of getting a white marble.
3 ÷ 25 = 0.12 = 12%
Percent formula
P × V1 = V2
If Mr. Phillips bought 1 3/4 pounds of raspberries, who bought more fruit, Ms. Winn or Mr. Phillips?
Answer:
i think mr phillip bought more fruit
Step-by-step explanation:
slope of (0.2,-0.9) (0.5,-0.9) how do i solve this and get the answer
Step-by-step explanation:
THE SLOPE IS 0
HOPE THIS HELPS
HI THIS IS MY SECOND QUESTION PART 2 TO MY FIRST COULD I PLEASE GET HELP?????>3
Answer:
6. A
7. C
8. C
9. B
10. D
osjshwjwowi
What is the equation of the line –3x–2y=30 in slope-intercept form?
change the equation to : y = mx + b
Enter your answer in the box.
Answer:
y=-3/2x-15
Step-by-step explanation:
If f(x) = x3 + 4, then what is the remainder when f(x) is divided by x + 6?
Pls help
Plzzz help I don’t understandddddd
Answer:
k = -10.5
Step-by-step explanation:
k + 7.5 = -13
Subtract 7.5 from both sides
k + 7.5 - 7.5 = -13 - 7.5
k = -20.5
Select all the expressions that are equivalent to
1/2(2).
Z+Z
Z/2
Z/Z
1/4 (z)+1/4 (z)
2(z)
Answer:
Step-by-step explanation:
An ellipse is defined as the locus of all points,the sum of whose from two given points is constant. Here z is a complex number whose distance from (1,0) and (−1,0) is constant. Hence the locus of z is an ellipse in the complex plane. Hence z will be all those points which lies on the ellipse with focus (−1,0) and (1,0).
what is 5.52×0.25 explain
Answer: 1.38
Step-by-step explanation:
552
x 25
02760
11040
02760+11040=13800.
then you put your decimal over 4 spots and you take the 2 zeros off the end and get your answer of
1.385x^3-2x^2+14x+7x^2+3x-11
The probability Bob guesses the winner of a certain baseball game is 4/5. The probability Joe independently guesses the winner of another game is 1/3. What is the probability that exactly one of them selects the winner? (Fraction answer)
SANA ALL SMART HAHAHAHHAAHHAHAAHA
What is 4 1/2 + -17 1/4 it doesn’t have to be simplify xo
Answer:
-14 3/4
Step-by-step explanation:
i am not super sure about this. the fraction is right though. i hope
plz help fast (worth 15 pts) A prism and two nets are shown below:
Image of a right triangular prism and 2 nets. The triangle bases have base 4, height 3, and diagonal side 5. The length of the prism from the bases is 9.4. Net A has 3 rectangles in a row. The middle one has sides AC and CD. This middle one has triangle ABC on top and identical triangle below. Net B is the same except that the triangle base ABC is on top of the last rectangle which has sides AC and CD. Units are in inches.
Part A: Which is the correct net for the prism? Explain your answer. (2 points)
Part B: Write the measurements of Sides AB, BC, and CD of the correct net. (4 points)
Part C: What is the surface area of the prism? Show your work. (4 points)
Answer:
This is worth more than 15
Step-by-step explanation:
Image of a right triangular prism and 2 nets. The triangle bases have base 4, height 3, and diagonal side 5. The length of the prism from the bases is 8.6. Net A has 3 rectangles in a row. The middle one has sides AC and CD. This middle one has triangle ABC on top and identical triangle below. Net B is the same except that the triangle base ABC is on top of the last rectangle which has sides AC and CD. Units are in inches.
Step-by-step explanation:
which expression represents 2 more than the product 5 and 4.
A. (5+4)×2
B. (5×4)+2
C. 2+(5+4)
D.2×(5×4)
Answer:
i think it's B. (5 x 4) + 2
Step-by-step explanation:
pls give brainly crown
and if i'm wrong i'm sooooo sorry
Question 1
What is the distance between the points (-3, 4) and (5, 4)?
8 units
9 units
7 units
1 unit
Edward has $20,000 in a savings account that earns 13% interest per year. The interest is not compounded.How much interest will he earn in 1 year?
Use the formula i = prt, where i is the interest earned, p is the principal (starting amount), r is the interest rate expressed as a decimal, and t is the time in years.
$
Answer:
22,600
Step-by-step explanation:
Find the circumference of a circle rounded to the nearest tenth with a
diameter of 4 inches
Answer:
12.6
Step-by-step explanation:
Circumference is πd. So...
(3.14*4)
12.56
12.6
Hope this helps and have a nice day ~(^_^)~
PLZ HELP RN ILL MARK YOU BRAINLIST IF ITS RIGHT PLZZZ IM DESPERATE
Answer:
x = 24
Step-by-step explanation:
What I would do is use inverse operation. First do -8 x -3 = 24. Then check your work by doing 24 divided by -3 = -8. So x = 24. I am 100% sure this is correct
Pls mark me brainliest
Round 7 to the nearest 10
Answer:
You can't round 7 to the nearest to 10, because there is nothing to round.
Step-by-step explanation:
Thirty-two is the product of nine and a number decreased by four
Answer:
28
Step-by-step explanation:
32 - 9 = 23,
24 + 4 = 28
Answer:
28, If you need any more help lmk
Step-by-step explanation:
50 POINTS! false answers will be reported and u wont get points
Can a solution to this equation be 3, because then both sides would have divide by 0?
Answer:
Step-by-step explanation:
If we multiply x - 7 by x - 3, we get x^2 - 10x + 21. This shows that the LCD is x^2 - 10x + 21, or (x - 7)(x - 3). Let's convert each of the two fractions on the right to their equivalents, with the LCD in the denominator.
Multiplying both the numerator and the denominator of 6/(x - 7) by (x - 3), we get 6(x - 3) over x^2 - 10x + 21, which is the LCD.
Similarly, we get 5(x - 7) over x^2 - 10x + 21.
Now all three of the original fractions have the same denominator, x^2 - 10x + 21. We can now "drop" the LCD, which leaves us with:
x^2 - 29 = 6(x - 3) + 5(x - 7)
Performing the indicated multiplications, we get:
x^2 - 29 = 6x - 18 + 5x - 35. Combining like terms:
x^2 - 29 = 11x - 53, or x^2 - 11x + 24 = 0
This factors as follows: x^2 - 11x + 24 = 0 = (x - 3)(X - 8) = 0
Then the preliminary solutions are x = 3 and x = 8. Unfortunately, we cannot substitute x = 3 into the original equation, because that would lead to division by zero. The only valid solution is x = 8, since every term of the original equation is defined at x = 8, and the equation is true for this value.
Repeat: 3 cannot be a solution because the 3rd fraction is undefined at
x = 3. So we have only one valid solution (8) with no other solution to multiply by 8.
Answer: You may divide by a variable. But only if you know the variable is non-zero. So, if setting the variable to zero makes both sides of the equation zero, we have a solution that that variable is 0, or the equation with the variable divided out holds. E.g. solve x(x-1) = 0.
The low temperatures on New Year's Day in a city for 5 years are shown below.
2°F, -10°F, 7°F, 4°F, -13°F
Part A
What was the average low temperature on New Year's Day for the 5 years?
A. -2.5°F
C. 0.6°F
B. -2°F
D. 4°F
Part B
If, in the 6th year, the low temperature was 7°F, what was the average low temperature for the 6
years?
A. -0.5°F
C. 0.8°F
B. -0.2°F
D. 1.4°F
Answer:
Part A - B. -2F
Part B - A. -0.5F
Step-by-step explanation:
Part A. -
2 + -10 + 7 + 4 + -13 = -10
-10 / 5 = -2
Part B. -
-10 + 7 = -3
-3 / 6 = -0.5
help plz im confused
Answer:
x = 16
Step-by-step explanation:
Δ ABC and Δ ADE are similar , thus the ratios of corresponding sides are equal, that is
[tex]\frac{AB}{AD}[/tex] = [tex]\frac{BC}{DE}[/tex] , substitute values
[tex]\frac{x}{x+6}[/tex] = [tex]\frac{8}{11}[/tex] ( cross- multiply )
11x = 8(x + 6)
11x = 8x + 48 ( subtract 8x from both sides )
3x = 48 ( divide both sides by 3 )
x = 16
This Question is confusing the heck out of me can someone help me with it.
A cheese pizza costs $5, each additional topping is $ 1.25. If x
represents toppings, which equation represents the total cost
of the pizza?