Answer:
A. 8.9 in.
Step-by-step explanation:
a) 8.9
Triangle is half of a square, so a square has double the area of the triangle.
40 x 2 = 80
Area is the square root of 80.
Square root of 80 = about 8.9
x = 8.9
Answer: a) 8.9 in.
Step-by-step explanation:
From the given picture it can be seen that the area of the triangle A = 40 sq. in.
The height of triangle = base of the triangle =x
We know that the area of triangle is given by :-
Hence, the value of x = 8.9 in.
You roll a 6-sided die.
What is P(odd)?
i need someone to explain this to me please.
Write your answer as a percentage.
Answer:
50%
Step-by-step explanation:
In total, there are six things that can happen when you roll a 6-sided die: you either roll a 1, 2, 3, 4, 5 or a 6.
Three of these numbers are odd, therefore meaning the chances of you rolling an odd number is [tex]\frac{3}{6}[/tex] (because there are 6 events which could occur, 3 of which are odd)
Converting this into a fraction can be made easier by simplifying the fraction. As both the numerator and denominator can be divided by 3, you can simplify the fraction to [tex]\frac{1}{2}[/tex]
To turn this into a percentage, first divide 100% by your denominator (2) to get 50%, and then multiply it by your numerator (1). Therefore, P(odd) is 50%.
A square has an area of 81 cm^2.What is the length of each side
Answer:
length of each side=√81
=9 cm
Answer:
9cm
Step-by-step explanation:
a square has 4 equal sides, so to find out the area you do width x height
the area is 81cm², which means that the side length is 9cm as 9 x 9 = 81
hope this helps :)
An octahedron and its net are shown below. All the faces are the same size and shape. What is the surface area of octahedron? Please answer !!
============================================================
Explanation:
There are 8 identical triangles shown here (ignore the dashed vertical line). We know they are identical because of the phrasing "same size and same shape". In other words, the triangles are congruent.
Each triangle has base 12 cm and height 10.4 cm
So the area of each triangle is base*height/2 = 12*10.4/2 = 62.4 square cm.
In total, all 8 triangles combine to an area of 8*62.4 = 499.2 square cm which points us to choice D
Which graph represents the equation: y = -1/2(2^x)
Answer:
The graph below ^-^
Hope this helps!
The equation of a line is given by:
y = mx + c
where m is the slope of the line and c is the y-intercept.
The graph that represents the equation is given below.
What is an equation of a line?The equation of a line is given by:
y = mx + c
where m is the slope of the line and c is the y-intercept.
Example:
The slope of the line y = 2x + 3 is 2.
The slope of a line that passes through (1, 2) and (2, 3) is 1.
We have,
y = (-1/2) [tex]2^x[/tex]
The graph that represents the equation is given below.
Thus,
The graph that represents the equation is given below.
Learn more about equation of a line here:
https://brainly.com/question/23087740
#SPJ2
I need the encrypted message in this matrix. also the alphabetical key
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
A = [ -1, 2, -3, 4]
B = [ -2, 3, -2, 4]
C = [ 3, -4, -2, 4]
Can anyone help with this?
Step-by-step explanation:
first find the area of the semi circle
1/2πr²
1/2π(2ft)²
1/2π4ft²
6.2831853071795864ft²
area of shaded portion
area of a rectangle=length x width
4ftx2ft(2is half the diameter)
8ft²
subtract are of semi circle from the area of the rectangle
8ft²-6.2831853071795864ft²
1.7168146928204135ft²
Can some one help explain this
Answer:
[tex]4( {x}^{2} - 1) - ( {x}^{2} - 8x - 5)[/tex]
[tex]4 {x}^{2} - 4 - {x}^{2} + 8x + 5[/tex]
[tex]3 {x}^{2} + 8x + 1[/tex]
if x +13/3 =5 what is x?
Answer:
.66
Step-by-step explanation:
Giving 50 points, no scam pls + brainliest
99% + 99% - 99% x 99% ÷ 99%
Answer:
0.99
Step-by-step explanation:
99% + 99% - 99% × 99% ÷ 99%
Add 99% and 99%198% + 99% - 99% × 99% ÷ 99%
Divide 99% × 99% by 99%198% - 99%
Subtract 99% from 198%99%
By defination :- p% = p / 100so, 99 / 100
= 0.99
Answer:
0.99
Step-by-step explanation:
99% + 99% - 99% × 99% ÷ 99%
Add 99% and 99%
198% + 99% - 99% × 99% ÷ 99%
Divide 99% × 99% by 99%
198% - 99%
Subtract 99% from 198%
99%
By defination :- p% = p / 100
so, 99 / 100
= 0.99
34x divided by 6
What is the value of x?
Answer:x would be 8 because 348 divided by 6 equals a quotient of 58
Step-by-step explanation:
Help please asap tysm! 10 brainly points! Will mark brainliest if you put in a random answer you will be reported! Tysm! <3 Need this asap please tysm!
A candle is a square prism. The candle is 15 centimeters high, and its volumeis 960 cubic centimeters.
a)Find the length of each side of the square base.
b) 0Find the surface area of the candle
Step-by-step explanation:
a. 960÷15=64
check:64×15 = 960
can someone please help!!
Answer:
20 is the Answer i think
Step-by-step explanation:
1. Two dice are thrown at the same time . What is the probability that the sum will be 7 or 11 ?
2. A ball is drawn at random from a box containing 6 red balls , 4 white balls and 5 blue balls.
Determine the probability that is red or white.
Answer:
1. 0.2222222
2. .6667
Step-by-step explanation:
for question 1
there can only be 36 outcomes so you find out how many time you could get 7and2 which is 8 from so u write 8.36=.2222
for question 2
divide the outcome by the total out comes example(there are 6 red balls and 4 white out of 15 so you do 10/15=.6667)
Answer:
#1Outcomes with sum of 7:
1 + 6, 2 + 5, 3 + 4, 4 +3. 5 + 2, 6 + 1Outcomes with sum of 11:
5 + 6, 6 + 5Total outcomes:
6*6 = 36Required probability:
P(sum of 7 or 11) = (6 + 2)/36 = 8/36 = 2/9 or 22.22%#2P(red or white) = (6 + 4)/(6 + 4 + 5) = 10/15 = 2/3 or 66.67%What do you do to find the power of a power?
A.
Add the exponents.
B.
Subtract the exponents.
C.
Divide the exponents.
D.
Multiply the exponents.
Answer:
C.
Step-by-step explanation:
Calculate it in the way of Divide
Solve the equation -8v – 5 = -21 for v.
Answer:
v=2
Step-by-step explanation:
add five to the other side and: -8v=(-21+5)
divide -16 by -8: v= -16/-8
v=2
Pls help I’ll give crown
Answer:
1200cm²
Step-by-step explanation:
(½*20cm*10cm)*2 + (½*20cm*50cm)*2
Answer:
60 * 40 / 2 = 120cm²
try to puzzle the triangles together to rectangles in your head
the ratio 5cm to 3m can be written in the form 1:n
Answer:
Step-by-step explanation:
5/3=1/n(do cross multiplication)
3*1=5*n
3=5n
3/5=n
4. The cost to rent a room for a party is a one-time fee of $90 plus $60 per hour
for a DJ. If the cost of the party was $300, how many hours did they have the DJ?
Can someone PLEASE help me with this i don’t understand any of it and it’s due soon :( The question says, “Find the Value of X to the nearest tenth.”
what is y% of 8 is .248
The foundation of a house has 1200 termites. The termites grow at a rate of about 3% each day. How many termites are there after one week (round to the nearest termite?
Answer:
1476 termites after 7 days.
Step-by-step explanation:
initial population, P = 1200
rate of growth, r = 1.03
time, t = 7 days
Final population
= Pr^t
= 1200 (1.03^7)
= 1475.8
Find the discriminant for each quadratic function below. Then list the number of zeros/solutions for each quadratic function.
1) 4x^2+10x-16=0
Discriminant________
Number of Zeros__________
2) -16x^2-7x+3=0
Discriminant_______
Number of zeros_________
Answer:
Step-by-step explanation:
The discriminant is found in
[tex]b^2-4ac[/tex] which is part of the quadratic formula. In
[tex]4x^2+10x-16=0[/tex], a = 4, b = 10, c = -16. Filling in for the discriminant:
[tex]10^2-4(4)(-16)=100+256=356[/tex]
It's positive so we know we have real roots; it's not a perfect square, so our solutions are 2 complex rational.
In [tex]-16x^2-7x+3=0[/tex], a = -16, b = -7, c = 3. Filling in for the discriminant:
[tex](-7)^2-4(-16)(3)=49+192=241[/tex]
It's positive and not a perfect square so the 2 solutions are complex rational
Need Help please ASAP NO LINKS!!!
Will give brainllest to who ever gets it right:)
Answer:
11.9
Step-by-step explanation:
in maths, we are aware that in triangles we can use sine, cosine, and tangent.
using tangent, we have
tan 29⁰=6.6/x
and tan 29⁰=0.5543
0.5543=6.6/x
cross multiply
0.5543x=6.6
x= 6.6/0.5543
x= 11.9
7 calculators cost £81.90.
How much do 11 calculators cost?
Answer:
128.7
Step-by-step explanation:
81.90 ÷ 7 = 11.7
11.7 x 11 = 128.7
Answer:
7 - 81.90 = 74
minus 11 = $85 for 11 calculators
Step-by-step explanation:
I don't really know if this is right, but i think it is...
10th grade polynomials, algebra. I'm asking for a friend. (literally) Image below of it.
Answer:
3y5 + 8y4 – 8y3
Step-by-step explanation:
2y5 – 6y3 + 1 + y5 + 8y4 – 2y3 – 1
2y5 + y5 + 8y4 – 6y3 – 2y3 + 1 – 1
3y5 + 8y4 – 8y3
Which is true about the functional relationship shown in the graph?
Shipping Cost
AY
11
10
Cost ($)
-NWOOOO
0
2
3
4
5
Weight (pounds)
A. The shipping cost is a function of the number of packages.
B. The weight of the package is a function of the shipping cost.
O C. The weight of the package is a function of the number of
packages.
O D. The shipping cost is a function of the weight of the package.
Answer:
C
Step-by-step explanation:
step by step fr
Simplify (12a^{5}-6a-10a^{3})-(10a-2a^{5}-14a^{4})(12a 5 −6a−10a 3 )−(10a−2a 5 −14a 4 ) . Write the answer in standard form
Answer:
[tex](12a^{5}-6a-10a^{3})-(10a-2a^{5}-14a^{4}) = 14a^{5}+14a^{4}-10a^{3}-16a[/tex]
Step-by-step explanation:
Given
[tex](12a^{5}-6a-10a^{3})-(10a-2a^{5}-14a^{4})[/tex]
Required
Simplify
We have:
[tex](12a^{5}-6a-10a^{3})-(10a-2a^{5}-14a^{4})[/tex]
Open brackets
[tex]12a^{5}-6a-10a^{3}-10a+2a^{5}+14a^{4}[/tex]
Collect like terms
[tex]12a^{5}+2a^{5}+14a^{4}-10a^{3}-6a-10a[/tex]
[tex]14a^{5}+14a^{4}-10a^{3}-16a[/tex]
Hence:
[tex](12a^{5}-6a-10a^{3})-(10a-2a^{5}-14a^{4}) = 14a^{5}+14a^{4}-10a^{3}-16a[/tex]
20 points
A line goes through the points (8,9) and (-2,4)
(B) Write the equation of the line in point-slope form. Show your work.
Please only answer if you know the answer.
Please explain. :)
Answer:
[tex]\displaystyle y-9=\frac{1}{2}(x-8)\text{ or } y-4=\frac{1}{2}(x+2)[/tex]
Step-by-step explanation:
Point-slope form is given by:
[tex]\displaystyle y-y_1=m(x-x_1)[/tex]
Where (x₁, y₁) is a point and m is the slope.
So, first, we will find the slope using the two points (8, 9) and (-2, 4). We can use the slope formula:
[tex]\displaystyle m=\frac{\Delta y}{\Delta x}=\frac{4-9}{-2-8}=\frac{-5}{-10}=\frac{1}{2}[/tex]
Next, pick either of the two points and substitute it into the point-slope formula. Using (8, 9), we acquire:
[tex]\displaystyle y-9=\frac{1}{2}\left(x-8\right)[/tex]
And using (-2, 4), we acquire:
[tex]\displaystyle y-4=\frac{1}{2}\left(x -(-2)\right)\Rightarrow y-4=\frac{1}{2}\left(x+2\right)[/tex]
Both of these are valid answers.
Answer:
y-9=1/2(x-8)
Step-by-step explanation:
m=(y2-y1)/(x2-x1)
m=(4-9)/(-2-8)
m=-5/-10
m=1/2
y-y1=m(x-x1)
y-9=1/2(x-8)
pls help me solve thisss
Answer:
D. 8
Step-by-step explanation:
[tex]3\frac{3}{5} x2\frac{2}{9}[/tex] Convert the fractions into a improper fractions
[tex]\frac{18}{5} x\frac{20}{9}[/tex] Multiply 18 x 20 / 5 x 9
[tex]\frac{360}{45}[/tex] Simplify
8