If y = -5, what is the value of
2y+2
-
4
Answer:
-12
Step-by-step explanation:
Ok so I'm guessing that's a -4 but if its not, please correct me.
y= -5 is going to be plugged into 2y+2-4
This means that 2(-5)+2-4=?
2(-5) is the equivalent to 2 times -5, which is -10 (you solve multiplication first because order of operations)
Now, 2-4=-2
So using this, let's combine both equations!
-10+-2=?
?=-12
It's a lot of steps but they get easier the more you do them <3
A school library has 160 DVDs in its collection. Given that 45% of the DVDs are about science and 40% are about history, how many of the DVDs are about other subjects?
Answer:
24 DVDs
Step-by-step explanation:
45% of 160 = 72
40% of 160 = 64
72+64=136
160-136=24
24 DVDs
if the radius is 14cmand The perimeter of the sector is 57.32cm.
what is the size of the angle?
Answer:
120°
Step-by-step explanation:
A sector of a circle is the portion or region of a circle enclosed by two radii and an arc. The perimeter of a the sector of a circle is given by the formula:
Perimeter of sector = [tex]\frac{\theta}{360} *2\pi r[/tex] + 2r
Where θ is the angle which forms the sector and r is the radius of the circle.
Given that Perimeter of sector = 57.32 cm, radius (r) = 14 cm, we can find the angle θ using:
Perimeter of sector = [tex]\frac{\theta}{360} *2\pi r[/tex] + 2r
[tex]57.32=\frac{\theta}{360} *2\pi *14+2(14)\\\\57.32-28=\frac{\theta}{360} *2\pi *14\\\\29.32=\frac{\theta}{360} *2\pi *14\\\\ \frac{\theta}{360}=\frac{29.32}{2\pi *14} \\\\\frac{\theta}{360}=0.33\\\\\theta=120^o[/tex]
PLEASE HELP ME ITS DUE IN 2 HOURS!!!!!!
The area of a circle is 379.94m². Using 3.14 for π, find the circumference of the circle.
Answer:
22π
Step-by-step explanation:
15 * 15 is?
YYYYYYYYYYYYYYYYYYYYYYY
Answer:
225 I just checked tell me if you're right
Answer:
15*15 = 225
15*15 is the same as [tex]15^{2}[/tex]
if you wanted to sit there you could add 15 with itself 15 times and you'd get 225.
no matter how ya do it, 15 *15 is 225
Step-by-step explanation:
What is an equation of the line that passes through the points (-7, -7) and (-7, 4)
Answer:
x=-7
Step-by-step explanation:
y=mx+c
m=rise over run
m=0
x=-7
identify the function shown in this graph
Answer: B
Step-by-step explanation:
Since the line is going down, the slope has to be negative so it’s B
Answer:
B!
Step-by-step explanation:
hope this helps! <3
Sammy bought fruit at the farmers market to resell at the school snack stand. she bought a total of 288 pieces of fruit. she bought 4 times as many apples as pears, twice as many peaches as pears, and 5 times as many oranges as pears. let b be the number of pears.
Answer:
is this on khan academy?
Find the value of ‘n’ and measure-of each angle
Answer:
pleas give me free brainiestStep-by-step explanation:
1. It is not possible for a triangle to have more than one vertex with internal angle greater than or equal to 90°, or it would no longer be a triangle. 2. The interior angles of a triangle always add up to 180° while the exterior angles of a triangle are equal to the sum of the two interior angles that are not adjacent to it. Another way to calculate the exterior angle of a triangle is to subtract the angle of the vertex of interest from 180°. 3. The sum of the lengths of any two sides of a...
Tell whether the triangle is right or not
Answer: Solved below...
Answer: Yes, that is a right triangle.
Step-by-step explanation:
To tell whether this is a right triangle or not you use a^2 + b^2= c^2
c is the hypotenuse the hypotenuse is the longest side of a right triangle, opposite the right angle. A and B can be either of the triangles sides.
To get this answer: 80^2+39^2 = 89^2
6400 + 1521 = 7921
7921=7921
Since they are the same this IS a right triangle. Here is a little help for if the a question asks if you have a right acute or obtuse. To tell if you have an acute triangle the sign will be a greater than sign for ex) 180 > 169. If you have a obtuse triangle the sign would be a less than sign for ex) 120 < 200.
Here is a problem like that if you do not understand:
6^2 +12^2 = 13^2 ( remember c is the hypotenuse)
36+144= 169
180 > 169
Have a nice day!
Help giving brainliest...
Answer:
7, 8, 8,7,8,9
Step-by-step explanation:
brainliest plss!!<3
HELPPPPPP PLSSSSSSSsssssssssssssssss
Answer:
Zero
Step-by-step explanation:
Slope is:
[tex]\frac{Change of y}{Change of x}[/tex]
Since there is no change of the y value, there is no slope.
Below are two parallel lines with a third line intersecting them.
Answer:
x = 77
Step-by-step explanation:
no hablo ingles lo siento
What is the common difference for 9,11,13,15,17,19
Ashton would like to start a business that provides customers a service or advice with the help of its team of expert and skilled employees. Which two of these businesses could Ashton opt for?
Answer:
A.,B.,and C.
Step-by-step explanation:
The two businesses Ashton should choose are a beauty salon and a tutoring center.
What is service?In business, a service can differ from a product because a service is not a physical good but it represents help to the customers through the work of employees.
From the given options the only two businesses that are based on service will be;
The beauty salon - It will help customers with their hair, nails, make-up, etc.
The tutoring center - It will help customers learn new things.
Therefore, the two businesses Ashton should choose are a beauty salon and a tutoring center.
Learn more about services at:
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can u help me find the answer quickly
Answer:the second one
Step-by-step explanation: hope this helps
3y-z ; use y=6 and z=6
Answer:
12
Step-by-step explanation:
y = 6; z = 6
3y - z = 3(6) - 6 = 18 - 6 = 12
Answer:
12
Step-by-step explanation:
3y-z is asking 3 x 6 - 6, which equals 12
(3 x 6 = 18 and 18 - 6 = 12)
PLEASE HELP. Is this graph parallel, perpendicular or neither?
Answer:
The lines are parallel
Step-by-step explanation:
When lines are parallel they travel side-by-side without ever crossing paths.
Answer: Parallel
Step-by-step explanation:
Two parellel lines have the same slope, thus will never cross, regardless of how far in each direction you go. This is true of the image attached, thus the lines are parallel.
you just found a postitive trend line showing a strong relationship betweenness homework scores for five students explain what this means?
Answer:
A positive slope of the trend line comparing homework scores and test scores means that higher homework scores infer a higher test score.
Step-by-step explanation:
The three angles of a triangle measure x+37, 90, and x+67. Find the measurement of the smallest angle in degrees.
Answer:
The smallest angle in the triangle is 30°
Step-by-step explanation:
You can solve this by including the fact that the sum of the angles in the triangle has to be 180 degrees. We're given values describing the angles, so we can simply add them together, say the equal 180, and solve for x:
[tex](x + 37) + 90 + (x + 67) = 180\\2x + 37 + 90 + 67 = 180\\2x + 194 = 180\\2x = 180 - 194\\2x = -14\\x = -7[/tex]
The smallest angle then is x + 37, or 37 - 7, giving us 30°
If three angles of a triangle measure x+37, 90, and x+67. Then 30 degrees is the measurement of the smallest angle in degrees.
What is Triangle?A triangle is a three-sided polygon that consists of three edges and three vertices.
Given,
The three angles of a triangle measure x+37, 90, and x+67.
We need to find the measurement of smaller angle.
From angle sum property we know that the sum of three angles is equal to 180 degrees.
x+37+90+x+67=180
2x+194=180
Subtract 194 from both sides
2x=180-194
2x=-14
Divide both sides by 2.
x=-7
Substitute the value of x in smallest angle
x+37
-7+37=30
Hence the measurement of the smallest angle in degrees is 30
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25 POINTS FOR ANYONE THAT CAN HELP ME!! Rewrite 16r^2s^2 as a power of a product.
Answer:
(4rs)^2 = 16r^2s^2
This is how I would rewrite it as a power of a product.
As a power of a product, we can write the expression as -
(4rs)².
What is exponent?Exponent is a quantity representing the power to which a given number or expression is to be raised, usually expressed as a raised symbol beside the number or expression. Mathematically -
[tex]$b^x = \underbrace{b \times \dots \times b}_{x \text{ times}}[/tex]
where -
[b] = base of the logarithm
[x] = exponent
Given is the expression as follows -
16r²s²
We can write the expression given -
16r²s²
As a power of a product, we can write -
(4 x 4 x r x r x s x s)
(4² x r² x s²)
(4rs)²
Therefore, as a power of a product, we can write the expression as -
(4rs)².
To solve more questions on exponents, visit the link below -
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Write z = 5 + 2i as an ordered pair in an Argand diagram.
Answer:no hablo espanol
Step-by-step explanation:
Lesson 4-1 Solving Systems of Equations by Graphing
Answer:
Where's the question?
Step-by-step explanation:
Answer:
we cant answer it theres no backup to the question
Step-by-step explanation:
Calculate the area of trapezium CDEF.
Step-by-step explanation:
1/2×(9+5)×6
1/2×14×6
7×6
42cm2
5
Select the correct answer
Which system of equations is represented by this graph?
Please help me!
I need help really fast
Answer:
75
Step-by-step explanation:
Jim will finish in 6 days because 300/50=6
So you know that Sam needs to finish the book in at exactly 4 days
300/4= 75 pages per day
Answer:
a lot
Step-by-step explanation:
a lot
Can somebody plz help solve for each question what x =?(only if u know how to do it) thanks :)
WILL MARK BRAINLIEST WHOEVER ANSWERS FIRST :DD!!
Answer:
7)x=11
8)x=16
9)n=12
10)m=13
11)n=8
12)m=3
Step-by-step explanation:
Answer:
7= 11. 8=16. 9=12. 10=13 11=8. 12=3
Step-by-step explanation:
7= 9+2=11
8=12+4=16
9=9+3=12
10=8+5=14
11=7+1=8
12=3+0=3
The numerator of a fraction is 6. Which of the following could be the denominator of the fraction
so that it is already in lowest terms?
A 9
B 12
C 15
D 18
E 19
What is the smallest rotational symmetry of a rhombus?
Can someone find the slopes of these two please?
Answer:
you put the points into the slope formula and solve : (y2-y1)/(x2-x1)
1. (4 -1) / (-2 -3)
3 / -5
2. (-1 -(-2)) / (5 - 0)
(-1 +2) / 5
1/ 5
Step-by-step explanation:
i hope this helped :)
Answer:
the first slope is 3/-5
the second one is 3/5
Step-by-step explanation: