The perimeter of the triangle CFX is the sum of lengths CF, FX and XC
The perimeter of the triangle CFX is 82 units
How to determine the perimeter of triangle CFXThe given parameters are:
CE=5, YF=21 and XZ=15
Points E, Y and Z are the median of the triangle CFX.
This means that:
CF = 2 * CE
FX = 2 * YF
XC = 2 * XZ
The perimeter of triangle CFX is then calculated as:
Perimeter = CF + FX + XC
This gives
Perimeter = 2 * CE + 2 * YF + 2 * XZ
So, we have:
Perimeter = 2 * 5 + 2 * 21 + 2 * 15
Perimeter = 82
Hence, the perimeter of the triangle CFX is 82 units
Read more about the perimeters at:
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38=26x-7x help with two step linear equation
Answer:
x=2
Step-by-step explanation:
1. Combine like terms
26x-7x = 19x
2. isolate 19
38/19 = 19x/19
x=2
Given the following cone, find the length of the slant. Round to the nearest tenth if necessary.
Answer: 22.4 ft
Step-by-step explanation:
Seven minus a number split into 9 equal parts in one
Answer:
x = 54
Step-by-step explanation:
Seven minus a number split into 9 equal parts in one
7 - (1/9)x = 1
7 - 1 = (1/9)x
(1/9)x = 6
x = (9)(6)
x = 54
Which expression is equivalent to 4(x + 3) - 2 - x - 5)?
A 4x + 3 - 2x + 5
B 4x + 12 + 2x + 10
C 4x + 12 – 2x – 10
D 4x + 3 + 2x - 5
Answer:
B
Step-by-step explanation:
4(x+3) is 4x+12 and -2(-x-5) is 2x+10 so it makes 4x + 12 + 2x + 10
Pls help
What is the formula to find the surface area involving area of the base and perimeter of the base.
⚠️⚠️PLASE HELP ME SOLVE AS SOON AS POSSIBLE⚠️⚠️
Answer:
12 in.
Step-by-step explanation:
2x + x + 3/2x + 1/2x = 40 in. = 5x
x = 8 in.
3(8)/2 = 12
PLEASE HELP ILL DO ANYTHING I REALLY REALLY NEED HELP ITS 5TH GRADE MATH!
Rick is snipping construction paper into rectangles for a project. He needs to snip one rectangle that is 10 inches × 15 1/2 inches. He needs to cut another rectangle that is 10 1/4 inches by 10 1/2 inches. How many total square inches of construction paper does Rick need for his project?
Answer:
262.625 square inches
Step-by-step explanation:
10 x 15.5 = 155
10.25 x 10.5 = 107.625
add together = 262.625
SOMEONE PLEASE HELP HONEST AWNSERS! !
Answer:
D.
[tex]\frac{2d^{2}-2d-38 }{(d+5)(d+3)}[/tex]
Step-by-step explanation:
Remove any grouping symbol such as brackets and parentheses by multiplying factors.
Use the exponent rule to remove grouping if the terms are containing exponents.
Combine the like terms by addition or subtraction.
Combine the constants.
What is y-4=-7(x+1) in standard form
Answer:
7x+y=-3
Step-by-step explanation:
y-4=-7(x+1)
y-4=-7x-7
y=-7x-7+4
y=-7x-3
-7x-y=3
7x+y=-3
What is the product
(x^4)(3x^3-2)(4x^2+5x)
Answer:
the first option
Step-by-step explanation:
when exponents are multiplied together, they add their values together.
example: y^2 x y^3 = y^5
written out: y x y x y x y x y = y^5
Answer:A
Step-by-step explanation:
What expression represents the volume of this prism as a product of the area of its base and its height?
Drag a number to each box to complete the expression.
1 2 3 4 8 9 12
[ ] x [ ] cubic units
Solution:
1. Finding the product of the base of the rectangular prism
Area of base of rectangular prism = LBArea of base of rectangular prism = 2 × 3 Area of base of rectangular prism = 6 units²2. Writing the expression for the volume of the prism
Volume = Length x Width x HeightVolume = Base x HeightVolume = 6 x 5 units³Area of base
3(5)15units²Volume:-.
Area of base×Height15(2)30units³Trigonometry, due in a few hours, 100 pts
Answer:
a) 120°
b) 16√3 ≈ 27.7 cm²
Step-by-step explanation:
a)Each exterior angle of a regular polygon measures 360° divided by the number of sides. For a hexagon, the exterior angle is 360°/6 = 60°. That means the adjacent interior angle is 180°-60° = 120°.
Angle ABC measures 120°.
__
b)The area of triangle ABC can be found using the formula ...
A = 1/2ab·sin(C) . . . . area of triangle with sides a, b, and angle C between them
A = 1/2(8 cm)(8 cm)sin(120°) = (32 cm²)(√3/2) = 16√3 cm²
The area of the triangle is 16√3 cm² ≈ 27.7 cm².
Answer:
∠ABC = 120°
ΔABC = 16√3 cm²
Step-by-step explanation:
Part (a)
Sum of interior angles of a regular polygon = (n - 2) × 180°
(where n is the number of sides)
⇒ Sum of interior angles of a regular hexagon = (6 - 2) × 180° = 720°
All the interior angles in a regular polygon are equal.
⇒ Interior angle = sum of interior angles ÷ number of sides
⇒ ∠ABC = 720° ÷ 6
⇒ ∠ABC = 120°
------------------------------------------------------------------------
Part (b)
Use the sine rule for area of a triangle:
[tex]\dfrac12ab \sin(C)[/tex]
(where a and b are the sides and C is the included angle)
Given:
a = 8b = 8C = ∠ABC = 120°Substituting values into the formula:
[tex]\implies \dfrac12\cdot 8 \cdot 8 \sin(120)=16\sqrt{3} \ \sf cm^2[/tex]
What is a reflection on a coordinate plane?
solve -3x + 6 > 30 using inverse operations
Answer:
y=30
Step-by-step explanation:
Which is a factor of both terms of the expression 2d−10?
Answer:
2
Step-by-step explanation:
2d = 2 × d
-10 = 2 × (-5)
The common factor is 2.
Pls, choose me as brainliest!
Answer:
2
Step-by-step explanation:
2d = 2 × d
-10 = 2 × (-5)
The common factor is 2.
There are 40 counters in a tub which are red and blue. If there are 8 more red than blue counters, how many red counters are there?
Answer:
24
Step-by-step explanation:
2x - 8 = 40
2x = 40 + 8
2x = 48
2x/2 = 48/2
x = 24
While shopping for clothes, Jaclyn spent $83 less than 3 times with Tracy spent. Tracy spent $10. Write and solve an equation to find how much Tracy spent. Let X represent how much Tracy spent.
Answer:$16
Step-by-step explanation: let $x be the amount of money daniel spent.
tracey spent $38 less than 3 times what daniel spent. blah blah blah
A triangle has an area of 160 square inches and a base of 20 inches. What is the height?
Kim had $472.15 in her checking account.
She deposited $188.50 and wrote a check
for $263.89. How much is in Kim's checking
account now?
Answer:
Kim's checking account has $396.76 left.
Step-by-step explanation:
Kim had $472.15 in her checking account. She deposited $188.50 and wrote a check for $263.89. How much is in Kim's checking account now?
The equation tells us that Kim added 188.5 to the original 472.15 in her checking account. 472.15 + 188.5 = 660.65But then the equation also says she took out, or wrote a check, for 263.89. 660.65 - 263.89 = 396. 76 This means that kim's checking account has $396.76 left.PLEASSEEEE HELPPP!!!!! MATH IS NOT MY STRONGEST SUBJECT
A formula for calculating simple interest is I = Pr, where I is the interest earned in dollars, P is the principal or original investment, and r is the fixed rate of interest. If the amount of interest earned is $2.25 and the interest rate is 3%, what is P?
F. $6.75
G. $7.50
H. $13.30
J. $67.50
K. $75.00
Answer:
as I = Pr
Step-by-step explanation:
we have to find P so
P=I/r
P = 2.25/3
P = 0.75
Based on the length and the height you calculated, find the area of. Show your calculations.
get the question correct and you will get extra pts from a brainliest
does anyone know the answer if you do please post it here
Answer:
Step-by-step explanation:
I know gthis but its To calculate the area of a triangle, multiply the base by the height and divide by two. If you know how to calculate the area of a rectangle, you should be able to calculate the area of a triangle with ease because a triangle is half of a rectangle or square. As a result, because it's half of a rectangle, you should apply the identical approach of calculating the area of a rectangle and then dividing it by two. I hope that's clear!
Which is the destructive interference formula for diffraction grating problems? dsin = dcos = dcos = n dsin = n
The destructive interference formula for diffraction grating problems is [tex]d\ sin(\theta) = (n+\dfrac{1}{2} )\lambda[/tex].
What is destructive interference?When the maxima of two waves are 180 degrees out of phase, destructive interference occurs: a positive displacement of one wave is cancelled exactly by a negative displacement of the other wave. The resultant wave has zero amplitude.
In a diffraction grating, the formula for brighter patches arising from constructive interference and darker patches arising from destructive interference is:
[tex]d\ sin(\theta) = n\lambda[/tex]
Here, d is the grating spacing, θ is the angle of light, n represents the fringe order, and w denotes the wavelength.
The value of N can only be integers values.
Now, Because destructive interference occurs between the fringes, the destructive interference formula is
[tex]d\ sin(\theta) = (n+\dfrac{1}{2} )\lambda[/tex]
where n is again an integer.
Hence, the destructive interference formula for diffraction grating problems is [tex]d\ sin(\theta) = (n+\dfrac{1}{2} )\lambda[/tex].
Learn more about Destructive Interference:
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15x+10y=8xy+28x find an expression for y in terms of x
Answer:
y = [tex]\frac{13x}{10-8x}[/tex]
Step-by-step explanation:
15x + 10y = 8xy + 28x ( subtract 15x from both sides )
10y = 8xy + 13x ( subtract 8xy from both sides )
10y - 8xy = 13x ← factor out y from each term on the left side
y(10 - 8x) = 13x ← divide both sides by (10 - 8x)
y = [tex]\frac{13x}{10-8x}[/tex]
Answer:
y = 13x/10-8x
Step-by-step explanation:
15x + 10y = 8xy + 28x
10y = 8xy + 13x
10y - 8xy = 13x
y(10 - 8x) = 13x
y = 13x/10-8x
25 = w
There were 25 students in the class
Percent %
(P)
SHOW ALL WORK ON NEXT PAGE
Scenario
Whole Part
(w) (T)
1) 75% of 120 is what number?
2) What number is 20% of 50?
3) 25 is what percent of 90?
4) A bag of candy contains 200 pieces, and
20% of the pieces in the bag are red.
5) Fifty percent of the 35 students earned
a B in class.
6) The 17 boys in the class represent 65%
of the students in class.
Answer:
1. 75
[tex] \frac{75 }{1} \times \ \frac{120}{100} = 15 \times 6 \\ \\ = 90[/tex]
2.
[tex] \frac{20}{1} \times \frac{50}{100 } \\ = 10[/tex]
3.
[tex] \frac{25}{100} \times \frac{90}{1} \\ = 22.5[/tex]
4.
[tex] \frac{20}{1} \times \frac{200}{100} \\ = 40[/tex]
5.
[tex] \frac{35}{1} \times \frac{50}{100} \\ = 17.5[/tex]
6.
[tex] \frac{17}{1} \times \frac{65}{100} \\ = 11.05[/tex]
Hope I'm right
A plane left Chicago at 8:00 a.m. At 1:00 p.m., the plane landed in Los Angeles, which is 1,500 miles away. What was the average speed of the plane for the trip?
Answer:
299.99801 mph
Step-by-step explanation:
Average speed = Total distance/ Total time
= 2414(km)/5
=482.8 km/h
=299.99801 mph
What is the vertical distance from the orgin to the point (6,3)
Answer:
3.
Step-by-step explanation:
The y axis is vertical, and the origin is (0, 0). Therefore, since 3 is the y, the vertical distance is 3 and the horizontal, if you need it, is 6.
Line m is tangent to the circle. Find the indicated measure
Answer:
105°
Step-by-step explanation:
The measure of an inscribed angle is half the measure of the arc it subtends. For an arc of 210°, an inscribed angle that subtends it will have a measure of 105°.
We normally think of the sides of an inscribed angle as being a chord. However, that chord can be considered part of a secant. When the two points of intersection with the circle get arbitrarily close together, the chord becomes a point, and the secant becomes a tangent.
That is, the angle made by this geometry is simply a degenerate case of an inscribed angle. The relationship with the arc measure is unchanged.
m∠1 = 105°
A rectangluar prism is shown. What is the volume of the prism?
26.5 cubic inches
148 cubic inches
452 cubic inches
624 cubic inches
Answer:
624 cubic inches
Step-by-step explanation:
12 x 8 x 6.5 = 624
Janelle has 1/2 of a pizza leftover from dinner last night. If she eats 2/6 of the remaining pizza, what fraction of the whole pizza did she eat.
(pls show the work)
Answer:
1/4 that's left over because if your take away 1/2 out of 2/6 it = to 1/4
Answer:
1/4 is what's left over because if you take away 2/6-1/2 = to 1/4
Step-by-step explanation:
Maria used some fabric to make 3 skirts, She used 3/10 to make the first one, 5/10 to make the second one. How much fabric did she used to make the third one?*
Answer:
2/10
Step-by-step explanation:
1 whole is equal to 10/10
5/10+3/10=8/10
10/10-8/10=2/10
hope this helps! :)
Answer:
the full lenght of fabric is 10/10 so if she used 3/10 and 5/10 that's in total 8/10.. she used 2/10 for the third skirt