20 × (10 + 6) = (20 × 10) + (20 × 6)
(12 × 3) × 8 = 12 (3 × 8)
True or false.
The scale factor of a dilation is the ratio of a length of a side of the image to the corresponding side length of the pre-image.
Answer:
true
Step-by-step explanation:
Answer:
true i think
How to solve this equation and check it. a - 2.5 = 4.5?
Answer:
Step-by-step explanation:
a - 2.5 = 4.5
2.5 = 2.5
a = 7.0 or 7
7.0 - 2.5 = 4.5
4.5 = 4.5
17.6 degrees F
35.2 degrees F
41.0 degrees F
72.2 degrees F
a triangle has a base 9cm and a perpendicular height 4.7 cm. work out the area of the triangle
Simplify. x + y - 0 x 2 - y 2
Answer:
-y^(2)+x+y
Step-by-step explanation:
Can someone help me with this please? In Belleville, the library is due south of the courthouse and due west of the community swimming pool. If the distance between the library and the courthouse is 9 miles and the distance between the courthouse and the city pool is 15 miles, how far is the library from the community pool?
Answer:
12 miles
Step-by-step explanation:
A right triangle is formed, where the distance between the library and the courthouse is one leg ( = 9 miles), the distance between the library and the swimming pool is the other leg (let's call it x), and the distance between the swimming pool and the courthouse is the hypotenuse ( = 15 miles).
From Pythagorean theorem:
15² = 9² + x²
225 - 81 = x²
x = √144
x = 12 miles
Simplify the product of
(3+/7)(3-/7) that you found in the previous step.
found in the previous step
(3+/7)(3-/7)=
Answer:
2
Step-by-step explanation:
Correct on Edge 2020 :)
The product of expression (3 + √7) (3 - √7) is, 2.
What is Multiplication?To multiply means to add a number to itself a particular number of times. Multiplication can be viewed as a process of repeated addition.
We have to given that;
The expression is,
⇒ (3 + √7) (3 - √7)
Now, We can multiply the number as,
⇒ (3 + √7) (3 - √7)
⇒ (9 - 3√7 + 3√7 - 7)
⇒ 9 - 7
⇒ 2
Learn more about the multiplication visit:
https://brainly.com/question/10873737
#SPJ5
answer the following
Answer: you would times everything I don’t remember how I did this but I did it by multiplying everything hope I helped and you would add the cm with the answer you got
Which of the following equations represents the line graphed below?
Answer:
y= -2x +3
Step-by-step explanation:
This is because the slope is 2 using rise over run and the y-intercept is 3 because it meets at that point, (0,3) on the number line.
Answer:
y= -2x +3
Step-by-step explanation:
How? We have to take a good look at the line graph
So we know that Y is equals to 2x +3 (first option)
Hope it kinda helped i am not very good at explaining
Find the value of X. Round to the nearest tenth as needed.
Answer:
the value of x is 10.6
Please help me dirty birds, I don't understand
Answer:
A) Positive
B) Positive
C) None
D) Positive
Step-by-step explanation:
:)
What does the inequality x + 3 ≤ 2 say?
A number and three is at most two.
A number and three is less than two.
A number and three is at least two.
A number and three is no less than two.
Answer:
A number and three is at most two.
Step-by-step explanation:
keywords :)
[tex] > bigger \: than \\ < smaller \: than \\ \leqslant is \: at \: most \\ \geqslant is \: at \: least[/tex]
A circle has a radius of 6ft. What is the area of the sector formed by a central angle measuring 300 degrees
Answer:
30π ft^2 which is 94.25 ft^2 to the nearest hundredth.
Step-by-step explanation:
The area of the full circle is π * 6^2
= 36π so:
the area of the 300 degrees sector = 300 * 36 π / 360
= 30 π
math question screen shot ( multiple choice)
Answer: A, C, and E
Step-by-step explanation:
Functions math, please help
Answer:
Slope: 2
Y-intercept: (0,-7)
Step-by-step explanation:
2(x-3)=y+1
distribute the 2 through the parentheses
2x-6=y+1
2x+6=0+1
(change the y to 0)
2x-6=1
add 6 to both sides(+6 cancels out -6)
2x=1+6
divide both sides by 2
x=7/2 or x=3.5
hope this helps!
Find the equation of the line that is parallel to y=5x+1 and passes through the point (10, -1)
Answer:
The required equation is 5x-y-51 = 0
Step-by-step explanation:
[tex]the \: given \: equation \: is \\ y = 5x + 1 \\ 5x - y + 1 = 0 \\ the \: equation \: of \: the \: line \: \\ parallel \: to \: 5x - y + 1 = 0 \: \: is \\ 5x - y + k = 0 \\ since \: it \: passes \: through \: (10, - 1) \\ 5(10) - ( - 1) + k = 0 \\ 50 + 1 + k = 0 \\k = - 51 \\ the \: equation \: of \: the \: line \: parallel \: t o\: \\ 5x - y + 1 = 0 \: \: \: is \\ \: 5x - y - 51 = 0[/tex]
HAVE A NICE DAY!
THANKS FOR GIVING ME THE OPPORTUNITY TO ANSWER YOUR QUESTION.
Which equation is the inverse of 5y+4 = (x+3)^2 +1/2?
Answer:
Answer D
Explanation:
To simply find the answer, you need to a: solve for y ; b: Find the square root of both sides ; c: solve the equation.
Hope this helps.
Answer:
The answer for this question is D..
Step-by-step explanation:
here are four number cards.
you cannot see one of the cards.
9 8 4 ?
the mean is 8.
what is the missing number?
Answer:
11
Step-by-step explanation:
9+8+4=21
we want to divide a number by 4 to get 8
4 x 8=32
32-21+11
Explain where to place the decimal point in the product for the expression
Answer:
Count the total number of decimal places in both of the factors. Place the decimal point in the product so that the number of decimal places in the product is the sum of the decimal places in the factors. Keep all zeros in the product when you place the decimal point
Step-by-step explanation:
Surface area of a cylinder in terms of pi
solve 6= (fraction) x+2/3 step by step
6 = [tex]\frac{x+2}{3}[/tex]
Let us take 3 to the left hand side of the equation.
6 x 3 = x + 2
x + 2 = 18
x = 18 - 2
x = 16
hey i need help I need help finding these...
o (x coordinates added/2, y coordinates added/2)
o If a line is parallel to one side of a triangle and intersects the other two sides in two distinct points, then it separates these sides into segments of proportional lengths.
o If the three sides of a triangle are proportional to the three sides of another triangle, then the triangles are similar
o If two angles of a triangle are congruent to two angles of another triangle, then the triangles are similar
o If two sides of a triangle are proportional to two sides of another triangle and if their included angles are congruent, then the triangles are similar
o a point that divides a line segment into two congruent parts
o a segment between two points A and B with a specified direction from A to B or from B to A and a standard distance between the two points
o a transformation that changes the size but not the shape of a figure, either by enlarging or shrinking it
o a transformation that changes the size but not the shape of a figure, either by enlarging or shrinking it
o absolute value of the scale factor is greater than one. enlargement
o absolute value of the scale factor is less than one. reduction
o an angle bisector in a triangle separates the opposite side into segments that have the same ratio as the other two sides
o an equation stating that two ratios are equal
o if a directed line segment has endpoints (x1, y1) and (x2, y2), the coordinates of the point that separates the directed line segment into a ratio of m:n are:
o if a line intersects two sides of a triangle and separates the sides into corresponding segments of proportional lengths, then the line is parallel to the third side.
o if a point separates the side of a triangle into segments that have the same ratio as the other two sides, then the line segment from the opposite vertex to the point bisects the angle
o
Answer:
2. Given the points A, B, C, D, calculate:
(a) the angle B of the triangle ABC
(b) the area of the triangle ABC
(c) the median BE of the triangle ABC
(d) the height AH of the triangle ABC
(e) the volume of tetrahedron ABCD
(f) the point E so that ABCE is a parallelogram.
A(-1, 2, -3), B(4, -1, 0), C(2, 1, -2), D( 3,4,5)
Step-by-step explanation:
|5−4r|=17
Can someone answer this question for me?? I will mark you brainliest if you get the correct answer!!
Answer:
R=-3 which is the same thing as 11/2
Step-by-step explanation:
Answer:
r=−3,11/2
Step-by-step explanation:
thats what I got
|5z−8|=7
Can someone help me with this question I will mark you brainliest if you get the correct answer. THANKS!! :))
Answer:
z = [tex]\frac{1}{5}[/tex], z = 3
Step-by-step explanation:
The absolute value function always returns a positive value.
However, the expression inside can be positive or negative, that is
5z - 8 = 7 ( add 8 to both sides )
5z = 15 ( divide both sides by 5 )
z = 3
OR
- (5z - 8) = 7
- 5z + 8 = 7 ( subtract 8 from both sides )
- 5z = - 1 ( divide both sides by - 5 )
z = [tex]\frac{1}{5}[/tex]
As a check
Substitute these values into the left side of the equation and if equal to the right side then they are the solutions
z = 3
left side = | 15 - 8 | = | 7 | = 7 = right side
z = [tex]\frac{1}{5}[/tex]
left side = | 1 - 8 | = | - 7 | = 7 = right side
Thus z = [tex]\frac{1}{5}[/tex], z = 3 are the solutions
Which description of the graph of the linear inequality y ≥ 7x – 4 is correct????The graph will be a dashed line with a y-intercept of negative four and a slope of seven. The graph will be shaded below the line.
The graph will be a solid line with a y-intercept of negative four and a slope of seven. The graph will be shaded above the line.
The graph will be a solid line with a y-intercept of seven and a slope of negative four. The graph will be shaded below the line.
The graph will be a dashed line with a y-intercept of seven and a slope of negative four. The graph will be shaded above the line.
Answer:
It's the second description
Step-by-step explanation:
It's one of the inequality symbols for greater/less than or equal to, which means the line is solid. Then, y is greater than or equal to 7x-4 which means it will be shaded above the line.
Answer:
The correct answer is the 2nd option
Step-by-step explanation:
A painter pays $15 per can of paint. How many cans of paint can she buy with $1052
Answer:
70 cans
Step-by-step explanation:
1052/15=70.1333333
but you have to round down to 70
ANSWER: 70
EXPLANATION:
A cube has a volume of 8 cubic feet. What is the length of the cube?
Answer:
The side length is 2 ft
Step-by-step explanation:
A cube has a volume of
V = s^3
8 = s^3
Take the cube root of each side
8 ^ 1/3 = s^3 ^1/3
2 = s
the ordered pairs below show the number of gallons of gas used, x, and the number of miles traveled, y, for a compact car.
(7,224),(8,264),(9,279),(10,350)
if the data is modeled with the linear best fit function, approximately how many gallons of gas will be used by the car when it travels 400 miles?
a. 10.3
b. 11.6
c. 12.8
d. 14.3
Answer:
a,b,c,d
Step-by-step explanation:
a,b,c,d
Answer:10.3
Step-by-step explanation:
Which of the following could represent the scale factor of the smaller figure to the larger figure?
4:25
6pi:15pi
8:125
20pi:125pi
16pi:250pi
2:5
Answer:
It could be 2:5 or 6pi:15pi
Step-by-step explanation:
If you write the ratio of the surface area as a fraction, you would get [tex]\frac{20\pi *yd^{2} }{125\pi *yd^{2} }[/tex]. Simplifying it would leave [tex]\frac{4}{25}[/tex]. But this is NOT the answer because that is the ratio of the surface area. You have to square root it to find the scale factor. The square root is [tex]\frac{2}{5}[/tex]. The answers would be 2:5 and 6pi:15pi.
Answer:
6π : 15π
2 : 5
Melanie's bedroom floor has length equal to 6x + 5 and width equal to 9x – 2 points
4. What equation represents the area of the floor?
Answer:
(6x+5)(9x-2)
Step-by-step explanation:
Area = Length x Width
Answer:
54[tex]x^{2}[/tex] +33x - 10
Step-by-step explanation:
you have to use F.O.I.L. First Outter Inner Last
(6x + 5)(9x - 2)
First (6x)(9x) = 54 [tex]x^{2}[/tex]
Outter (6x)(-2) = -12x
Inner (5)(9x) = 45 x
Last (5)(-2) = -10
combine middle terms
54[tex]x^{2}[/tex] +33x - 10
