Answer:
Here side(a) = 2 cm. = (√3/4) (2)². = (√3/4) x (2) x (2). = (√3). = √3 cm².
Step-by-step explanation:
A = √3 cm²
Step-by-step explanation:Hi there !
use formula for area of equilateral triangle
[tex]A=\frac{s^{2} \sqrt{3}}{4}[/tex]
s = side
A = (2cm)²√3/4
= 4√3cm²/4
= √3 cm²
Good luck !
What percent of Rs 80 is Rs 20
Answer:
Your answer is 25%
Step-by-step explanation:
Hope this helps you
Do mark me as brainliest
help please!!! i’ll give brainiest!
=================================================
Explanation:
Replace every x with -3
Then use the order of operations (PEMDAS) to simplify
y = -2x^2 + x - 5
y = -2(-3)^2 + (-3) - 5 ... x replaced with -3
y = -2(9) - 3 - 5
y = -18 - 3 - 5
y = -21 - 5
y = -26
Answer:
-26
Step-by-step explanation:
1. plug in -3 for all x's
-2(-3)^2 + (-3) -5
2. combine like terms
-2(-3)^2 - 8
3. pEmdas. deal with exponent first (remember: only affect the 3, since it's in parentheses! also when you square a negative number, it becomes positive!)
-2(9) - 8
4. peMdas. multiply -2 and 9 next.
-18 - 8
5. pemdaS. subtract 8 from -18.
-18 - 8 = -26
3n - 7m for n = 5 amd m = 4
Answer:
-13
Step-by-step explanation:
first you will subsitute 5 for n in the equation to get 3(5)-7m
next you will subsitute 4 for m in the equation to get 3(5)-7(4)
then solve: 3x5= 15
7x4= 28
15-28= -13
Lines AB and CD (if shown) are straight lines. Find x. Give reasons to justify your solutions.
Answer:
Step-by-step explanation:
The value of x is 15.
What is linear pair?Linear pairs of angles are created when two lines cross at a single point. Angles are said to as linear if they are contiguous to one another following the junction of two lines. If two angles are adjacent and their measurements add up to 180°, they are supplementary. As a result, a pair of linear angles always sums to 180°.
In a linear pair, the total of the two angles is always 180 degrees.Angles that are next to one another are called linear pairs, however not all adjacent angles are linear pairs.A common vertex and common arm are shared by a pair of linear angles.Given:
<1 = 5x-15
<2 = 90
<3 = 2x
Now, using Linear pair
5x - 15 + 90 + 2x= 180
7x + 75 = 180
7x = 180-75
7x= 105
x= 105/7
x= 15
Hence, the value of x is 15.
Learn more about linear pair here:
https://brainly.com/question/17525542
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Triangle XYZ has vertices X(8, −2.3), Y(6.5, 5), and Z(6, 3). When translated, X′ has coordinates (3.8, −0.3). Enter a rule to describe this transformation. Then find the coordinates of Y′ and Z′. Drag and drop each number into the correct box to complete the statements.
please help as quick
32 or 2
Step-by-step explanation:
4×4×4×4= 256
2×2×2====8
Then 256÷8=32 or 32/1
-6*4/2^3-15 help please
Are the expressions: 3n - 1n + 7 and 2n + 10 - 3, for n=5
Answer:
17 Which means they are equal
All you have to do is replace n in the equasion.
Step-by-step explanation:
3(5) - 1(5) + 7
=17
2(5) + 10 - 3
=17
please please help me!!
Answer:
-37/100
Step-by-step explanation:
-0.37 is -37 over 100
Answer:
Step-by-step explanation:
37/100
What is the slope of the line on the graph?
Please help asap
the slope would be 2/4
What is Math POSTER I don't know what it is
if u guys did it before and u still have the paper can u guys show me thank u
PLZ HELP THAT THE ASSIMNET
Answer:
Easy, check bellow.
Step-by-step explanation:
Mistakes
Allow
Thinking to
Happen
write the integers that are closest to the the number in the middle to complete the statement.
___<square root of 73<___
Answer:
see explanation
Step-by-step explanation:
Consider perfect squares on either side of 73, that is
64 < 73 < 81 , then
[tex]\sqrt{64}[/tex] < [tex]\sqrt{73}[/tex] < [tex]\sqrt{81}[/tex] , that is
8 < [tex]\sqrt{73}[/tex] < 9
Answer:
8<square root of 73<1
i think this are the integers that are closest to the number in the middle.
Regina has a bag of marbles that contains 3 blue marbles, 4 red marbles, and 5 yellow marbles. She draws one marble, then replaces it, and draws one more.
There are
possible outcomes.
The probability the first drawn marble will be blue is
.
The probability the second marble drawn will be yellow is
.
So, P(blue, then yellow) =
.
Answer: 12, 1/4, 5/12, 5/48
Step-by-step explanation:
i got it right
Answer:
12,
1/4,
5/12,
5/48
Step-by-step explanation:
Have a great day!
Claire bought 10 chicken wings for $17.00. If Claire spent $5.10, how many chicken wings did she buy?
help please!! due today! wil maRK BRAINLIST
What is the unit price for an 8 ounce package costing 1.59
I will give brainliest
Answer:
Answer:
Hi i just saw your question about giving away bloxburg money . I was asking for help with money and looking up bloxburg while waiting. Within 5 minutes SNOG deleted not 1 but 2 questions there were nothing wrong with them either. Please can you help me by donating so I can give my sister and I a good bloxburg house?
I kno wu need help but Im sorry for answering it with this but I had to find your latest question to find you PLEASE HELP ME!!! I will find some way to repay you!
What is 8.170 in word form
Answer:
eight and seventeen hundredths
Step-by-step explanation:
Y’all help me with this and how you got it i need to show my work
Answer:
6
Step-by-step explanation:
8x-3x-10=20
5x-20=10
5x=30
x=6
Answer:
x=6
Step-by-step explanation:
What is the slope-intercept form of the equation of the line that passes through the points (-3, 2) and (1,5)?
Answer:
y= 3/4x+17/4
Step-by-step explanation:
You're welcome :)
Nancy drew a scale drawing of a theater. In the scale Nancy used for the drawing, 1 inch represents 3 feet. The stage is 16 inches long in the drawing. How long in feet is the actual stage?
Answer:
The answer to this question is 48 feet
Step-by-step explanation:
You would see that 1 inch is 3 feet then you would multiply 3 and 16 to receive 48
I need a tutor to help me
Answer:
I wish I was smart to help ya out but I'm not but if you need help there is a tutor that can help you out.
What is the value of the expression below when z=2
4z2-3z-4 please help
graph a line with a slope of -5 that contains the point (-3, -4)
Answer:
y = -5x-19
Step-by-step explanation:
Use the point-slope formula to plug in the x1 and y1 and the slope -5 to get the equation y = -5x-19.
Formula: y-y1 = m(x-x1)
m = slope
x1 = x-value
y1 = y-value
Answer:
y=-5x-15
Step-by-step explanation:
starts off in point-slope form:
y+4=-5(x+3)
distribute the 5:
y+4=-5x-15
subtract 4 from each side:
y=-5x-20
^that answer is in slope intercept form.
Find three consecutive EVEN integers such that the sum of the smallest number and twice the middle number is 20 more than the largest number.
Answer:
10, 12 and 14Step-by-step explanation:
x - an integer
2x - an even integer (the first and the smaller of the three)
Consecutive integers increase always by 2
2x+2 - next even integer consecutive to 2x (the middle one)
2x+2+2=2x+4 - the last consecutive even integer (the largest)
2•(2x+2) - twice the middle number
2x+2•(2x+2) - the sum of the smallest number and twice the middle one
2x+4+20 - 20 more than the largest number
2x+2•(2x+2) = 2x+4+20
2x + 4x + 4 = 2x + 24
-2x -2x
4x + 4 = 24
÷2 ÷2
2x + 2 = 12 ← the middle number
-2 -2
2x = 10 ← the smallest number
2x+4 = 10 + 4 = 14
Check: 10+2•12=34; 14+20=34
What is the intermediate step in the form (x+a)2 = b as a result of completing the square for the following x^2+16x-145=10x-7
Answer:
(x+3)^2=147
Step-by-step explanation:
About 2 in every 400 people have an extra rib. If there are 580 people in Antoine’s middle school, predict how many people have an extra rib
Answer:
2.9 people in her school have an extra rib.
Step-by-step explanation:
580/400= 1.45
1.45 x 2 = 2.9
L-M-- A-O I LOOK AWAY FOR ONE SE. COND AND MY TEACHER HAS GCF AND A BUNCH OF NUMBERS WRITEN DOWN T---F IS GCFFFF
Answer:
She was probably lagging
Step-by-step explanation:
but this happens to me all the time so I feel your pain
Answer:
GCF is Greatest Common Factor.
Explaination:
The greatest common factor (GCF) of a set of numbers is the largest factor that all the numbers share. For example, 12, 20, and 24 have two common factors: 2 and 4. The largest is 4, so we say that the GCF of 12, 20, and 24 is 4.
Derek wants to determine the height of the top of the backboard on the basketball goal at the playground. He places a standard 12-inch ruler next to the goal post and measures the shadow of the ruler and the backboard. If the ruler has a shadow of 10 inches and the backboard has a shadow of 7 feet, then how high is the top of the backboard?
A.
9.41 feet
B.
8.4 feet
C.
9.66 feet
D.
6.63 feet
A passenger train can travel, on average, 20 miles per hour faster than a freight train.
If the passenger train covers 390 miles in the same time it takes the freight train to cover 270 miles, then how fast is each train?
Answer:
The speed of the passenger train is 65 miles per hour and the speed of the freight train is 45 miles per hour.
Step-by-step explanation:
