What is .8 repeated as a fraction
Decide whether the ordered pair (-2,-8) is a solution of the equation.
y = 4x
Is (-2,-8) a solution to y = 4x?
Yes or no
Answer:
Yes it is
Step-by-step explanation:
Because 4 ×-2=-8
Select the correct answer. Simplify the expression.
(see the screenshot)
Answer:
Option D
Step-by-step explanation:
Given expression has been given as,
[tex]\sqrt[5]{224x^{11}y^8}[/tex]
[tex]\sqrt[5]{224x^{11}y^8}=\sqrt[5]{2\times 2\times 2\times 2\times 2\times 7(x^{11})(y^8)}[/tex]
[tex]=\sqrt[5]{(2^5)\times (7)(x^{10}\times x)(y^5\times y^3)}[/tex]
[tex]=2^{\frac{5}{5}}\times 7^{\frac{1}{5}}\times x^{\frac{10}{5}}\times x^{\frac{1}{5}}\times y^{\frac{5}{5} }\times y^{\frac{3}{5} }[/tex]
[tex]=2\times 7^{\frac{1}{5}}\times x^2\times y\times x^{\frac{1}{5} }\times y^{\frac{3}{5} }[/tex]
[tex]=2x^2y\sqrt[5]{7xy^3}[/tex]
Option D will be the answer.
Maria’s book collection contains 8 biographies, 6 mysteries, 3 adventures, and 7 science fictions. What is the ratio of biographies and mysteries to the total number of books in Maria’s collections? Simplify the ratio.
Answer:
14/24 is 7/12 dunno if this helps
Step-by-step explanation:
VALERIE
Chantal wants to start the zip line 25 feet high in one tree, and end it 10 feet
high in the other tree. Is the difference in height sufficient to meet the slope
constraint? Use specific numbers from the situation to justify or refute
whether Chantal's design meets the slope constraint.
401
B I UT
10
English
I
The difference in the height of the two trees is 15 feet
How to determine if the design meets the slope constraints?The height of the zip line on both trees is given as:
Height 1 = 25 feet
Height 2 = 10 feet
Calculate the difference in both heights
ΔHeight = Height 1 - Height 2
This gives
ΔHeight = 25 - 10
ΔHeight = 15
The question cannot be solved further because the horizontal distance between the trees is not given.
Read more about slope at:
https://brainly.com/question/3493733
sin(x) - cos(2x)
Question said to graph and find the answers.
Answer:
hry
Step-by-step explanation:
Find the solution set of the quadratic equation over the set of complex numbers.
5x2 + 8x + 4 = 0
1+1
A)
x=-1- or -1
-
B)
X
4 2i
or
5
4
5
+
2i
5
2
5
C)
6i
5
or
2
5
+
61
5
1
3i
1
4
D)
31 or
+
4.
Answer:
c
Step-by-step explanation:
Answer:
D confirm bro............
Please help :) will mark brainliest
Answer:
1) C: 113 m
2) C: 572.3 m²
3) B: 61.2 cm²
4) A: $2.2
6) C: 756 yd³
8) D: 3402 mm²
9) A: 25x + 125 < 500
Step-by-step explanation:
1) Formula for circumference of circle is;
C = 2πr
radius; r = 18 m
C = 2π × 18
C ≈ 113 m
2) Formula for area of a circle is;
A = πr²
Here we have diameter; d = 27
Thus, radius; r = 27/2 = 13.5 m
A = π × 13.5²
A = 3.14 × 13.5²
A ≈ 572.3 m²
3) The diameter of the semicircle is parallel to the base of the rhombus. Thus, diameter; d = 7 cm
Thus, r = 7/2 = 3.5 cm
Area of semi circle = ½πr² = ½ × π × 3.5² = 19.2 cm²
Area of rhombus = base x height = 7 × 6 = 42 cm²
Total area of object = 42 + 19.2 = 61.2 cm²
4) Cost of banana per pound = $0.4 per pound
Amount of banana bought = 5.5 pound
Amount spent = 0.4 × 5.5 = $2.2
6) Volume of triangular prism is;
V = ½bhl
b = 12 yd
h = 7 yd
L = 18 yd
Thus;
V = ½ × 12 × 7 × 18
V = 756 yd³
8) Volume of cuboid at the base;
V1 = lbh = 25 × 9 × 9 = 2025 mm²
Volume of cuboid at top;
V2 = 9 × 9 × 9 = 729 mm²
Volume of triangular prism;
V3 = ½bhl = ½ × 9 × 9 × (25 - 9) = ½ × 81 × 16 = 648 mm²
Total volume = 2025 + 729 + 648 = 3402 mm²
9) Cost per class; $25 per class
Charge for the supplies = $125
He doesn't want to spend more than $500.
Thus;
25x + 125 < 500
i just need a little help on this one sorry for the bother
Answer:
they look like their curved at about 70? 65? and they would be the same
Step-by-step explanation:
Answer: Both C and D are 76
Step-by-step explanation:
Because this is a isosceles triangle both C and D are the same. Subtract 28 from 180 and you get 152. So D and C combined equals to 152 so divide that by 2 an you get 76.
Write the following equation in slope-intercept form.
x/2 -y+6 =0
Answer:
[tex]y = \frac{x}{2} + 6[/tex]Step-by-step explanation:
[tex] \frac{x}{2} - y + 6 = 0[/tex]The slope-intercept form is y=mx+b, where m is the slope and b is the y-intercept.[tex]y=mx+b[/tex][tex] - y + 6 = \frac{ - x}{2} [/tex][tex] - y = \frac{ - x}{2} - 6[/tex][tex]y = \frac{x}{2} + 6[/tex]Reorder terms.[tex]y = \frac{1}{2} x + 6[/tex]Hope it is helpful....here is a graph of y=x^2-7x+10 for values of x from 0 to 7.
write down the roots of x^2 -7x +10=0.
ASAP please
Answer:
Roots of the function are x = 2, 5.
Step-by-step explanation:
Roots of a function are defined by the x-intercepts of the graph.
From the given graph in the question,
x-intercepts → x = 2, 5
Now confirm it by solving the equation algebraically,
x² - 7x + 10 = 0
x² - 5x - 2x + 10 = 0
x(x - 5) - 2(x - 5) = 0
(x - 5)(x - 2) = 0
x = 2, 5
Therefore, roots of the function are x = 2, 5.
I need help quick
Thx in advance
Answer:
5) 119 degrees
6) 25 degrees
7) 45 degrees
8) 115 degrees.
What is the answer for: Carlos and his family left for the amusement park at 7:35a.M.The trip took 1 hour and 45 minutes.What time did they arrive?
Answer:
9:20 AM
Step-by-step explanation:
Answer: 9:20
Step-by-step explanation: 7:35 + 1 hour and 45 minutes = 9:20
use circle C
classify arc MNO in circle C
Answer:
Semicircle
Step-by-step explanation:
As we can see, the arc is bounded by the chord MO
since the chord passes through the center of the circle, we have it that the chord is a diameter
Mathematically, an arc bounded by a diameter represents half of a circle
So we can conclude that the arc MNO in circle C is a semicircle
Select all of the equations where x = 5 is the solution:
2 = 7 - x
1 + x = 6
x - 4 = 9
10 ÷ x = 2
10x = 2
Factor as the product of two binomials
x² – 4 =
Answer:
(x-2) (x+2)
Step-by-step explanation:
------------------
big ideas integrated 1 chapter 8 test? anyone ?
Answer:
Uh, sure! :)
Step-by-step explanation:
What is her average from Macy scores
Answer: 85.2
Step-by-step explanation:
The answer is correct because, to find your grades your bassicaly just looking for the mean. To find the mean you have to take all the numbers and add them after you do that you have to divide how ever much numbers you added. So in this case we do 90 plus 76 plus 88 plus 80 plus 92. That equals 426, and since we added five numbers we divide the answer by 5 and that equals 85.2.
Hope This Helps!
please please please help me
Answer:
4x and 5.9
Step-by-step explanation:
Answer:
x1=.13 x2=-.13
Step-by-step explanation:
Do the square root of .0169 and you get .13 and -.13
Please help I don't understand. I will give brainlist!
Answer:
[tex]Sin A = \frac{a}{c}\\\\Cos A = \frac{b}{c} \\\\Tan A = \frac{a}{b} \\\\\\Sin B = \frac{b}{c} \\\\Cos B = \frac{a}{c}\\\\Tan B =\frac{b}{a}[/tex]
Formulas
[tex]Sin\theta = \frac{Opposite}{Hypotenuse}\\\\Cos\theta = \frac{Adjacent}{Hypotenuse} \\\\Tan \theta =\frac{Opposite}{Adjacent}[/tex]
What is the answer? Please help, this is urgent. Thanks.
Izzy has 24 pens and 27 paper clips. What is the ratio of pens to paper clips in simplest form?
Answer:
8:9
Step-by-step explanation:
24 ÷ 3 = 8
27 ÷ 3 = 9
Have a good day :)
How do I find the value of x. The answer is 25/7 I just need to show the work.
Answer:
Below.
Step-by-step explanation:
As the 2 sides are both cut in half by the horizontal line, 7x-1 = 1/2 * the base line, so:
2(7x - 1) = 48
14x - 2 = 48
14x = 50
x = 50/14
= 25/7.
Answer:
x = [tex]\frac{25}{7}[/tex]
Step-by-step explanation:
A segment joining the midpoints of 2 sides of a triangle is half the length of the third side, that is
7x - 1 = [tex]\frac{1}{2}[/tex] × 48 = 24 ( add 1 to both sides )
7x = 25 ( divide both sides by 7 )
x = [tex]\frac{25}{7}[/tex]
Find the value of x so that x – 4 = -2
Answer:
x=2
Step-by-step explanation:
[tex] - 2 + 4 = 2[/tex]
Which expressions are equivalent to 4(x+3)-10+6x
Answer:
4(x+3)-10+6x
4x+12-10+6x
10x+2
hope this helps
have a good day :)
Step-by-step explanation:
Andre has a summer job selling magazine subscriptions. He earns $25 per week plus $3 for every subscription he sells. Andre hopes to make at least enough money this week to buy a new pair of soccer cleats. Let `n` represent the number of magazine subscriptions Andre sells this week. Write an algebraic expression for the amount of money he makes this week.
Answer:
C = 25 + 3n
Step-by-step explanation:
Andre has a summer job selling magazine subscriptions.
We are told that:
Andy earns $25 per week plus $3 for every subscription he sells.
Let us represent
C = Total amount of money he makes this week
n = the number of magazine subscriptions Andre sells this week.
Hence, Our Algebraic expression =
C = $25 + $3 × n
C = 25 + 3n
Given Circle S, what is the area of the shaded sector, to the nearest
square centimeter?
Answer:
51
Step-by-step explanation:
area = pi x r^2
so
3.14 x 25
around 76
so
2/3 of 76
is
51
solve for x. round your answer to the nearest tenth if necassary.
Answer:
32.9 degrees
Step-by-step explanation:
cos (x) = 21/25
cos^1 (21/25)
= 32.856 --> round to 32.9
Answer:
32.9°
Step-by-step explanation:
You can see that relative to the angle that is x, we are given the side lengths that are adjacent and the hypotenuse. The trig function associated with this is cosine, and we get:
cos(x) = adj / hyp --> 21 / 25
To find x as the angle, we use the function arccosine,
x = arccosine(21/25)
x = 32.85988038°
And this rounds up to 32.9°
The conjugate of complex number z = 3 + 2i is
_
z = a-bi
i think this is the answer
7.
Choose the linear inequality that describes the graph. The gray area represents the shaded region.
A. y ≥ 2x – 2
B. y ≥ 2x + 2
C. y ≥ –2x + 2
D. y ≤ 2x – 2
Answer:
A. y ≥ 2x – 2
Step-by-step explanation: