Answer:
Step-by-step explanation:
x² - 5.2x + 2
Discriminant = (-5.2)² - 4 ⋅ 1 ⋅ 2 = 19.04
In a Mathematics test,Alex got 80% of the question correct. He got 40 questions correct. Each question on the paper carried 3 marks. How many marks did he lose in that test ?
Answer: 30 marks lost
Step-by-step explanation: 80% = 40 question so 100% = 50 questions
he missed 10 of 50 so
10 x 3 = 30 marks
Find four solutions of each equation. Write the solutions as ordered pairs.
3. y = 3x
4. y = -2x + 11
y = 3x
x y
-2 -6
-1 -3
0 0
1 3
y = -2x +11
x. y
-1. 13
0 11
1. 9
2. 7
30 POINTS I NEED HELP PLZ
Answer:
120
Step-by-step explanation:
to find the volume you just do length x width x height.
The area of a square whose side is 5 cm is
Answer:
25
Step-by-step explanation:
5 x 5 = 25
Answer:
the area is 20
Step-by-step explanation:
each side is 5 and a square has 4 sides
5x4=20
find the value of given expression
[tex] \sqrt{80 \times 40 \times 2} [/tex]
Answer:
80 is the answers for the question
Answer:
my answer is 80..........
:))))))))))))))))))))
Answer:
20/5
Step-by-step explanation:
hello I'm confused so yea
A shape is made of 9 right triangles of equal size and three identical rectangles.
Each rectangle measures 7 mm wide by 3 mm high. The rectangles are each
7 mm wide by 3 mm high. What is the total area, in square millimeters,
of the shape?
Answer:
The area of the figure is 157.5 square millimeters.
Step-by-step explanation:
Since a shape is made of 9 right triangles of equal size and three identical rectangles, and each rectangle measures 7 mm wide by 3 mm high, while the rectangles are each 7 mm wide by 3 mm high, to determine what is the total area, in square millimeters, of the shape, the following calculations must be performed:
Area of a rectangle: base x height
Area of a triangle: (base x height) / 2
7x3 = 21 = Rectangle area
7x3 / 2 = 10.5 = Triangle area
21 x 3 + 10.5 x 9 = 157.5
Thus, the area of the figure is 157.5 square millimeters.
what is the variables on both sides equations? 3x - 6 = 7x + 1
Answer:
3x-6=7x+1
=> 3x-7x = 6+1
=> (-4)x=7
=>x = 7/4 = 1.75
Find an
explicit formula for the arithmetic sequence 37, 74, 111, 148, ....
Note: the first term should be a(1).
Answer:
Step-by-step explanation:
a₁ = 37
a₂ = 74
Common difference d = a₂ - a₁ = 37
nth term = a₁ + (n-1)d
= 37 + (n-1)37
= 37n
Answer:
Below in bold.
Step-by-step explanation:
The common difference is 74-37 = 37.
nth term a(n) = a1 + (n - 1)d
= 37 + 37(n - 1)
= 37n.
You want to send a package . First class mail costs $.39 for the first ounce and $.24 for each additional ounce . You can spend at most $ 3.00 on postage . What is the maximum weight of your package ? Round down to the nearest ounce .
Answer: 10 ounces
Step-by-step explanation: Ounce is equal to O and price is y
y=mx+b : y=.24o+.39
y = 3.00
3.00-.39=2.61
2.61/.24 = 10.875
round it down and you get the maximum
Find the measures of the interior angles of the triangle
Answer:
m∡A = 59°
m∡B = 48°
m∡C = 73°
Step-by-step explanation:
'x' = measure ∡A
73 + x - 11 + x = 180
2x + 62 = 180
2x = 118
x = 59
A culture of yeast doubles in size every 4 hours. If the yeast population is estimated to be 3 million now, what will it be one day from now
Answer:
192,000,000
Step-by-step explanation:
Given
General form of an Exponential distribution :
y = ab^x
a = initial amount = 3000000
b = growth factor = 2
x = period = 24 / 4 = 6
y = final amount ; after one day = 24 hours ; x = 24 /4 = 6
y = 3000000(2)^6
y = 3000000 * 64
y = 192,000,000
you buy a pair of jeans at a department store. a. What is the percent of discount to the nearest percent? b. What is the percent of sales tax to the nearest tenth of a percent? c. Th e price of the jeans includes a 60% markup. After the discount, what is the percent of markup to the nearest percent?
Answer:like the place of it?
Step-by-step explanation:
Jerry needs 8 pieces of rope to help
tie down his tent. If each piece of rope
needs to be 4 feet each, what is the
total amount of rope needed?
Find the measure of one interior angle in a regular 144-gon. Round to the nearest
tenth if necessary.
*
a)134
b)25560
c)180
d)177.5
Answer:
the answer is d
Step-by-step explanation:
Help me :( .........
Answer:
16
Step-by-step explanation:
Answer:
B. 16 feet
Step-by-step explanation:
The tree and well are to scale.
6x4 is 24
so that means that 4x4 is 16.
Find the answer To Y
Answer:
I think the answer is y=5x-15
or
y=2x-6
Determine the coordinates of the pre-image?
Just find the coordinates and divide the x and y coordinates by the scale factor.
I'll do A.
(4,3)
Divide 4 by 0.5 and 3 by 0.5.
4/0.5=2
3/0.5=1.5
So the original coordinate for A is (2,1.5).
Hope it helps
Which of the following pairs show(s) triangles that are similar but not congruent?
Answer:
B and C
Step-by-step explanation:
Find X pls help me :3
Answer:
Highlight the question, Do Ctrl+Shift+I, it will show this page with a bunch of codes and stuff and you can find the answer in there
Step-by-step explanation:
please help as soon as possible and please don’t take advantage of the points
a:1 hour
b:1.5 hours
c:2 hours
d: 3.5 hours
e:5.5 hours
Answer:
2 hours
Step-by-step explanation:
36/6=
I need help ASAP
Answer:
What?
Step-by-step explanation:
Are you trying to divide?
Answer:
6
Step-by-step explanation:
Divide 36 into 6 equal parts. 36/6=6
10. Multiply the following numbers using scientific notation. show the steps. (See Ex. 5)
(2 x 103)(3 x 104).
11. Divide the following numbers using scientific notation. Show the steps as they are done in the lesson. (See Ex. 6)
-42 x 102
14 x 103
Answer:
10) 6 × 10⁷
11) -3 × 10⁻¹
Step-by-step explanation:
Assuming that (2 x 103)(3 x 104) =
(2 × 10³)(3 × 10⁴) =
(2 × 10³) × (3 × 10⁴)
And the division of
(-42 x 102) and (14 x 103) =
(-4.2 × 10²) ÷ (1.4 × 10³)
__________________
It is hard to know without an image, assumptions can vary.
The radius of a circle is 4 feet. What is the circle’s area?
Use 3.14 for pi
Answer:
A= 3.14 * 4² = 50.24 ≈ 50 ft²
Step-by-step explanation:
Simplify the fraction. 11/55
Answer:
1/5
Step-by-step explanation:
That'll be one brainliest
Answer: 1/5
Step-by-step explanation:
You have to divide the numerator and the denominator by the GCF ( greatest common factor) of 11 and 55. 11 is the GCF of 11 and 55 so 11÷11=1 and 55÷11=5
Hope this helps :)
Write an equation of the line that passes through the points (3,8) and (2.6). Write the equation in slope-intercept form.
The equation of the line in slope-intercept form is
Answer:
2x - y + 2 = 0 is the equation
y = 2x + 2 is the equation in slope-intercept form
Step-by-step explanation:
slope = (y₂ - y₁) / (x₂ - x₁)
slope = (6 - 8) / (2 - 3)
slope = -2 / -1
slope (m) = 2
equation through the points (3,8) and (2,6):
(y - y₁) / (y₂ - y₁) = (x - x₁) / (x₂ - x₁)
(y - 8) / (6 - 8) = (x - 3) / (2 - 3)
(y - 8) / -2 = (x - 3) / -1
-y + 8 = -2x + 6
2x - y + 2 = 0
slope-intercept form,
y = mx + c
y = 2x + 2
Solving the equation -5x = 4y + 8 for y gives
Answer:
y= -2-5/4x
x= -4/5y-8/5
Step-by-step explanation:
i hope this helps :)
i need help asap pls
Answer:
Work out the Area of the figure, then multiply that answer by $25.
less than 100 students want to start at 9:00 am true or false
for there are 17
Please help asap!!
Kianna and Jos houses are reflections of each other across both axes. What are the coordinates of Jo's house?
Answer:
(-4,-2)
Step-by-step explanation: