Answer:
x² + 13x - 56
Step-by-step explanation:
(x+7) (3x-8)
3x² - 8x + 21x - 56
combine like terms;
x² + 13x - 56
If triangle ABC is an equilateral triangle with sides of 12 ft , and points X,Y, and Z are the midpoints of each side , find the perimeter of triangle XYZ.
Answer:
I dont know the answer so I'm gonna give it my best sorry!
Step-by-step explanation:
I think that it is 36 ft.
Find the product.
(-4·3·2)2
(- 4 * 3 * 2)*2 = - 48
Find the area of the figure, in square meters, to 1 decimal place.
To find area, you multiply the two dimensions, or base x height.
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hope it helps
sorry if it didn't, you didn't provide much clarification
Answer:
Step-by-step explanation:
yeah uh please help me if you can, this is due later today.
Please help me and please explain the answer:))
Answer:
3rd one
Step-by-step explanation:
Warm-Up
Alma is going to walk through the park from Point A to
Point B
What distance will she walk?
HELPPPPPPPPPPPPPPPPP
Answer:
I think the answer is 200 feet
Step-by-step explanation:
Pythagoras is the sum of the square of two sides is equal to the square of the longest side. Then Alma is going to walk through the park from Point A to Point B is 282.84 ft.
What is a right-angle triangle?It is a type of triangle in which one angle is 90 degrees and it follows the Pythagoras theorem and we can use the trigonometry function.
A right-angle triangle has sides with lengths 200 ft and 200 ft.
By Pythagoras theorem, we have
H² = P² + B²
H² = 200² + 200²
H² = 40000 + 40000
H² = 80000
H = 200√2
H = 282.84 ft
Alma is going to walk through the park from Point A to Point B is 282.84 ft.
More about the right-angle triangle link is given below.
https://brainly.com/question/3770177
Segments AB,DC, and EC intersect at point C. Angle DCE measures 148. Find the value
Answer:
x = 16°
Step-by-step explanation:
We can see that AB is a straight line. The sum of angles on a straight line adds up to 180°
∠ACD + ∠DCE + ∠ECD = 180° (sum of angles on a straight line)
∠ACD = x, ∠DCE = 148, ∠ECD = x
substituting the respected values for the angles gives:
x + 148 + x = 180
2x + 148 = 180
subtracting 148 from both sides:
2x + 148 - 148 = 180 - 148
2x = 32
Dividing both sides by 2, to get x:
2x/2 = 32/2
x = 16°
how do I resolve this?
Answer:
32
Step-by-step explanation:
20+2+4+6
pls mark brainliest
frank bought am math pencil, he used 28% percent off with a QR code, he paid 108$ how much did he save
Step-by-step explanation:
28% =28\100
28\100×108=30.24
Calculate the length of the unknown side of this right-angled triangle.
9 cm
8 cm
Answer:
the length of the unknown side of the right angle triangle is 1 cm
Step-by-step explanation:
The computation of the length of the unknown side of the right angle triangle is shown below:
= √9^2 - √8^2
= √81 - √64
= 9 - 8
= 1 cm
Hence, the length of the unknown side of the right angle triangle is 1 cm
Which of the following choices is the variance of the sample shown here.
35, 36, 41, 56, 60, 71
• A. 188.2
• B. 215.8
• C. 13.7
O D. 14.7
O E. 50.3
Answer:
B. 215.8
Step-by-step explanation:
Someone please help me on this it’s due in minutes
Answer:
number of hours is 64
amd number of washes is 12
5x^+20x +15=0
Pls help
Plot the image of point C about point P with a scale factor of 2
HELP PLEASE IM BEGGING ITS SUPER SIMPLE
I need the answer please will mark brainliest
Answer:
Look below.
Step-by-step explanation:
For further reference I suggest looking at Khan academy videos of this.
A. log8 5/9
B. log9 4
C. log6 2^3
Which sentence means Jack ate 2 ⁄ 4 of a pizza?
what are the sentences? but 2/4, could also be 1/2 or a half
It's C. Right? I don't know!
Answer:
yes, C is the correct answer
Analyze the reflectional symmetry of the polygons labeled A, B, C, and D.
Which polygons have fewer than two lines of symmetry?
A and B
B and C
A and C
C and Dthe answer up i right
Answer:
it's not b and c
Step-by-step explanation:
it's a and c
brainliest please
Please help I don’t understand at all if you could possibly break it down that would be nice.
sub 2 for any "x"
3(2)^2-2(2)+1
6^2-4+1 i dont know if you need to simplify even more but if you do
36-4+1 32+1 31
i hope this helps you!
Answer:
The answer is 9.
Step-by-step explanation:
Hey there, so it looks to me that you just have to subsitute 2 in for x, and solve the equation. Like this.
1. Plug in X: 3(2)^2 -2(2) + 1
2. Solve exponents (2)^2 = 4, so the equation is 3(4) - 2(2) + 1
3. Multiplication: 3 × 4 = 12, and -2 × 2 = -4, so the equation is 12 - 4 + 1
4. Addition: -4 + 1 = -3, so it is now 12-3
5. Subtraction: 12-3 = 9, so the answer is 9!
I hope this helps.
What is X, the volume, and total surface area?? I hate my math class with a passion so please help me. :(((
Answer:
[tex]x {}^{2} = 4 {}^{2} + 3 { }^{2} \\ x {}^{2} = 16 + 9 \\ x {}^{2} = 25 \\ \sqrt{x {}^{2} } = \sqrt{25} \\ x = 5[/tex]
Write the number that is the solution of this equation. 8x- 10 = 70 *
8x - 10 = 70
8x = 70 + 10
8x = 80 / : 8
x = 10
 Please help me with this/ will give brainlist
Answer:
45
Step-by-step explanation:
y is inversely proportional to the square of x
a) express y in terms of x
Answer:
y proportional to 1/x^2
aading constant = k= 1
y=k/x^2
6 >2 k + 4 what does k equal
Answer:
k = anything that is less than 2, so 1, 0, -1, -2, -3, -3 1/4, etc.
Hope that helps!
Step-by-step explanation:
Help me with this please!!!
Answer:
600
Step-by-step explanation:
Note that 600 is exactly half way between 400 and 800, and conclude therefore that 600 is the midpoint.
Make u the subject of the relation.
1.wx+yz=uv-2wx
Answer:
Step-by-step explanation:
wx+yz=uv-2wx
uv = wx + yz + 2wx
u = ( wx + yz + 2wx ) / v
hope it helps :)
4.) Show that sec 0 sin 0 cot 0= 1 is an identity
Answer:
1/sin(0)+sin(0)+cos0/sin0= 1
PLS help ASAP I DONT have time to answer this, it also detects if it’s right or wrong.
A rectangle has an area of 270m2.
One of the sides is 3m in length.
Work out the perimeter of the rectangle.