Answer:
Step-by-step explanation:
Joscelyn, we know that [tex]x^{2}[/tex] = 49 means ,
x = [tex]\sqrt{49}[/tex]
7 * 7 = 49
x = 7
for b) it looks like the question is
-64 = [tex]b^{2}[/tex]
teacher don't like to tell anyone that you can have a negative under the square root sign. Because it means you have to understand imaginary numbers. :/
[tex]\sqrt{-64}[/tex] = b
another way to write the negative sign is [tex]i^{2}[/tex]
[tex]\sqrt{64i^{2} }[/tex] = b
use properties of square roots
[tex]\sqrt{64}[/tex]*[tex]\sqrt{i^{2} }[/tex] = b
8i = b
written well, this looks like
0 + 8i = b
if the questions doesn't have the negative sign
then it's just
8 = b
The value of x = +7, -7 and the value of b = -4
Given an equation :
x² = 49,
b³ = -64
x * x = 49 ( 7 * 7 = 49 and -7 * -7 = 49 )
b * b * b = -64 ( (-4) * (-4) * (-4) )
On solving
x = +7, -7 and b = -4
An equation is a condition on a variable while an expression is simply a polynomial in one or more variables.
An equation contains an equal sign while an expression does not contain an equal sign. An expression contains operators, constants, and variables in it.
answer x = +7, -7 and b = -4
To know more about equations and expressions follow the given link :
https://brainly.com/question/27893282
If 5% of a number equals eight find 50% of that number
Answer:
80
Step-by-step explanation:
160 x .05 = 8
(5% of 160 is 8)
160 x .5 = 80.
You know you should multiply, because when working with fractions, decimals, and percentages, the word "of" means multiplied by.
can you please help me? as much as you can is greatly appreciated <333 pt 1
Answer:
11) 80°
12) 80°
13) 80°
14) 40°
15) 60°
16) 120°
17) 180°
18) 100°
19) 120°
20) 280°
Step-by-step explanation:
This will take awhile, so I will just give you the theorems I used to determine my answer.
11) Supplementary angles theorem
12) Central Angles/Arcs Theorem
13) Vertical Angles Theorem
14) Central Angles/Arcs Theorem
15) Vertical Angles Theorem (The vertical angle minus 40 would equal 60)
16) Supplementary Angles Theorem (Supplementary to 100 degrees)
17) Central Angles/Arc Theorem
18) Vertical Angles & Central Angles/Arc Theorem
19) Angle Addition Postulate, somewhat
20) Angle Addition Postulate
Have a nice day, fam. This problem really worked my brain. Spread The Love.
I need help, please anyone!
Anyone know how to do this?
Answer:
yes its B mark brainliest please
Step-by-step explanation:
IT IS
B
B
B
B
B
Joey and her sister are helping remodel their parent's house.
They plan to carpet the bedroom which is 14 feet by 16 feet.
The carpet is priced at $1.90 per square foot.
How much can they expect to pay for the new carpet?
Answer:
They will have to pay $425.60
Step-by-step explanation:
14*16 equals 224 feet
224 feet times $1.90 equals $425.60
16. Solve for x. x = __________
Answer:
20
Step-by-step explanation:
Which statement is true? *
none of the other choices
sin 50° = cos 40°
sin 50° = tan 50°
sin 50° = tan 40°
sin 50° = cos 50°
Answer:
sin 50=cos 40 is true statement.
Create and solve a 2 step equation where x = -3
Answer:
Equation:
x + 2 = -1
x = -1 - 2
x = 3
One number is 5 more than another number. Three times the greater plus twice the lesser is 30. Determine the numbers.
Answer:
.
Step-by-step explanation:
Answer:
Step-by-step explanation:
One number is 5 more than another number. Three times the first plus twice the second is 30.Find the numbers.
x = first number
y = second number
x=y+5
3x +2y = 30
lets substitute x=y+5 in the second equation for x;
3(y+5) + 2y =30
3y + 15 + 2y = 30
5y + 15 =30
5y = 30 -15
5y = 15
y = 3
Now that we have y lets plug that answer into either equation for y;
x = 3 + 5
x = 8
:) if I’m wrong I’m very sorry.
Write a short definition of "photosynthesis"
Answer:
Photosynthesis, the process by which green plants and certain other organisms transform light energy into chemical energy. During photosynthesis in green plants, light energy is captured and used to convert water, carbon dioxide, and minerals into oxygen and energy-rich organic compounds.
Step-by-step explanation:
I hope this helps if it does can i get brainlist
photosynthesis is a process that occurs in plants. it is used to convert sunlight into sugar for the plant in order to create chemical energy. this energy is used to help the plant make glucose ! hope this helped ♡
y = -3/2x -2 y = -1/4 + 3
Answer:
umm. what am I supposed to find
Step-by-step explanation:
I need to know what to fi d in order to get the answer for you it would make it easier if you did that now so yeah
PLS HELP QUICK!!
The volume V of a cylinder with radius r and height h is given by the formula V = (pi)r^2h. Solve the formula for r. Then find the radius of a cylinder with a height of 15 centimeters and a volume of 750cubic centimeters. Round to the nearest hundredth.
Answer:
4
Step-by-step explanation:
750=3.14 × r^2 ×15 you divide 750 by 3.14 then by 15, then you take the square root
Which of the following expressions are equivalent to (25)-7 · 24?
Answer:
where is the following, or is it not multiple choice?
Step-by-step explanation:
Answer:
432 will be your answer
Step-by-step explanation:
A possible expression could be
18 x 24
I would appreciate the options.
What is the length of JK¯¯¯¯¯, to the nearest tenth of a millimeter? 4.5 mm 5.6 mm 8.3 mm 19.9 mm A horizontally-aligned scalene triangle J K L. Side J L is labeled as 3 millimeters. Side L K is labeled as 5 millimeters. Angle L is labeled as 62 degrees.
Answer:
5 = side a
3 = side c
angle B = 62 degrees
JK is side b
Use the Law of Cosines to find the length of side b.
b^2 = a^2 + c^2 − 2ac cos(B)
b^2 = (5^2 + 3^2) − ( 2 x 5 x 3) cos(62°)
b^2 = (25 + 9) − 30 x 0.469
b^2 = 34 - 30 x 0.469
b^2 = 34 - 14.084
b^2 = 19.916
b = √19.916
b = 4.463
Rounded to the nearest tenth is 4.5 mm.
Hope this helps!
Step-by-step explanation:
Answer:
4.5 mm
Step-by-step explanation:
Please help me! No links!!!
what is v?
v-6=-20
Answer:
Hi! The answer to your question is v = 14
Step-by-step explanation:
☆*: .｡..｡.:*☆☆*: .｡..｡.:*☆☆*: .｡..｡.:*☆☆*: .｡..｡.:*☆
☆Brainliest is greatly appreciated!☆
Hope this helps!!
- Brooklynn Deka
Answer:
12
Step-by-step explanation:
20-60=12
Can you guys plz help me!?
Thanks!!
Answer the question please and no links. Please explain too.
Answer:
(20,5)
Step-by-step explanation:
The line is proportional making the answer equivalent.
Answer:
(20,5)
Step-by-step explanation:
20,5=4,1
can you please help me? as much as you can is greatly appreciated <333 pt 2
Answer: m3 for the first one
Step-by-step explanation:de
This could take a while, so I'll simply put the answer with the theorem I used to figure it out with.
1) 45° - minor arc; Central Angles/Arcs Theorem
2) 180° - semi circle; Diameter Theorem? (Whichever theorem states that the diameter separates a circle into two 180° semi circles)
3) 75° - minor arc; Angle Addition Postulate
4) 105° - minor arc; Angle Addition Postulate
5) 225° - major arc; Angle Addition Postulate
6) 45° - minor arc; Vertical Angles Theorem
7) 135° - minor arc; Angle Addition Postulate
8) 240° - major arc; Angle Addition Postulate
9) 315° - major arc; Angle Subtraction Postulate, i think? lol.
10) 180° - semi circle; Diameter Theorem or whatever it's called lol.
Additionally, I determined whether or not an angle was a major arc, minor arc, or semi circle with the knowledge that:
minor arc - less than 180 degreesmajor arc - more than 180 degreessemi circle - is 180 degrees.Have a nice day, fam. Spread The Love. lol I'm tired after typing all this out :P
Find the value of x then find the angle measures of the polygon
Answer:
X=135⁰
Step-by-step explanation:
The sum of angles= 540
Angles are x⁰ x,⁰(x-45⁰),(x-45)⁰
x+x+x+x-45+x-45+x-45=540
5x-135=540 simplify
5x=540+135 Add 135 to both sides
[tex]\frac{5x}{5} =\frac{675}{5}[/tex]
divide both sides by 5
X=135⁰
hope it helps....
Urgent!! Math help!!! Pls answer them all or the ones you know! I’ll make you brain-list!
Answer:
1) mEF is 38°
2) mDE is 52°
3) c. 6.28
4) b. 20.94
Step-by-step explanation:
1) mEF is corresponding to mHG
2) mDE + mEF = 90, so 90-38=52
3) L=r·∅ so L=3·120 (in radians)
4) Couldn't see Q, but based on the right angle we can assume the inside angle for mQPT is 119°
A rectangular prism is 20 yards long and 9.4 yards wide. Its volume is 3,384.0 cubic yards. What is the height of the rectangular prism?
For the rhombus below, find the measure of angles 1,2,3 and 4.
Answer:
∠1 is 33°
∠2 is 57°
∠3 is 57°
∠4 is 33°
Step-by-step explanation:
First off, we already know that ∠2 is 57° because of alternate interior angles.
Second, it's important to know that rhombus' diagonals bisect each other; meaning they form 90° angles in the intersection. Another cool thing is that the diagonals bisect the existing angles in the rhombus. Therefore, 57° is just half of something.
Then, you basically just do some other pain-in-the-butt things after.
Since that ∠2 is just the bisected half from one existing angle, that means that ∠3 is just the other half; meaning that ∠3 is 57°, as well.
Next is to just find the missing angle ∠1. Since we already know ∠3 is 57°, we can just add that to the 90° that the diagonals formed at the intersection.
57° + 90° = 147°
180° - 147° = 33°
∠1 is 33°
Finally, since that ∠4 is just an alternate interior angle of ∠1, ∠4 is 33°, too.
There are 120 pieces of candy in a bag. Fill in the table below to determine the number of pieces of each color
Answer:
Blue = 30
Green = 24
Red = 54
Orange = 12
Step-by-step explanation:
hahahshahhahahahahahauehfudbrog f ghg
Can someone help me find the distance between each pair of points round the answers to the nearest tenth if necessary please help with 2,4 show me how you get it and the answer please
Answer:
I'm not really understanding this question can you give me some more info
What is the slope-intercept equation for the line below?
5
(54)
(0, 2)
- A. y = 2 x + 2
D. -- +2
Solve f(x) = 2x + 2 what would f(x)=20
a. 20
b. 10
c. 9
d. 8
Answer:
the answer is c. 9
Step-by-step explanation:
20=2x+2
18=2x
x=9
Answer:
C
Step-by-step explanation:
Given f(x) = 2x + 2 and f(x) = 20, then equate right sides, that is
2x + 2 = 20 ( subtract 2 from both sides )
2x = 18 ( divide both sides by 2 )
x = 9 → C
Solve the system using the substitution method. -5x – 8y = 17 x = 3.5y – 8.5 NO LINKS PLEASE HELP LINKS = REPORT
Answer:
x=-5 , y=1
Step-by-step explanation:
-5x-8y=17
x=3.5y-8.5
-5(3.5y-8.5)-8y=17
-17.5y+42.5-8y=17
-25.5y+42.5=17
-25.5y=-25.5
y=1
x=3.5(1)-8.5
x=-5
i need help whats the answer for 2x^2=50
Answer:
x = 5
x = -5
Step-by-step explanation:
2x^2 = 50
2x^2 - 50 = 0
2(x^2 - 25) = 0
2(x^2 + 5x - 5x - 25) = 0
2((x^2 + 5x) + (-5x - 25)) = 0
2(x(x + 5) - 5(x + 5)) = 0
2(x - 5)(x + 5) = 0
x - 5 = 0
x + 5 = 0
x = 5
x = -5
Rewrite this number in scientific notation.
57,000,000,000,000
Answer:
57.0 * 10^12
Step-by-step explanation:
Answer:
5.7 x 10^13
Step-by-step explanation:
trust me
Bigcity United played thirty games last season. They won 60% of these. How many games did they lose?
Answer:
Bigcity United lost 12 games.
Step-by-step explanation:
Since you know the percentage of games Bigcity United won, first you need to determine the percentage of games that they lose by subtracting the percentage of games they won from 100%:
100%-60%=40%
Now, you know that they lost 40% of the games and you can calculate 40% of the number of games they played last season:
30*40%=12
According to this, the answer is that Bigcity United lost 12 games.