Answers
Answer:
Square: x= +or - [tex]\sqrt{7}[/tex], Triangle: x= + or - [tex]\sqrt{23}[/tex]
Step-by-step explanation:
For the square
4[tex]x^{2}[/tex]=28
dvide by four:
[tex]x^{2}[/tex]=7
Take the square root of both sides
x= +or - [tex]\sqrt{7}[/tex]
For the Triangle
(1/2) (2x) (2x)=46
2[tex]x^{2}[/tex]=46
Divide by 2
[tex]x^{2}[/tex]=23
x= + or - [tex]\sqrt{23}[/tex]
Related Questions
1. Calculate the value of 8. 1 × 103 − 2. 4 × 102 in standard form.
2. Blood comprises 8% of the weight of a human. Amy weighs 40kg. Find the weight of her blood.
Answers
Step-by-step explanation:
1. We need to find the value of 8.1 × 10³ − 2.4 × 10² in standard form.
We can also write its as :
8.1 × 10³ − 2.4 × 10²
81000 − 240
Standard form = 80760
2.
Amy's weight = 40 kg
Blood comprises 8% of the weight of a human.
Weight of her blood,
[tex]W=8\%\ of\ 40\\\\=\dfrac{8}{100}\times 40\\\\=3.2\ kg[/tex]
So, the weight of her blood is equal to 3.2 kg.
Find the area of the following rectangle. Type out al work
Answers
Step-by-step explanation:
[tex]area = length \times width \\ = (4x + 3) \times (2x + 2) \\ = ( {8x}^{2} + 8x + 6x + 6) \\ = ( {8x}^{2} + 14x + 6) \: {units}^{2} [/tex]
Answer:
[tex](8x + 14x + 6)^{2}[/tex]
Step-by-step explanation:
Area of a rectangle is length x breadth
In the given figure, the length is 2x + 2 and breadth is 4x + 3
So, the area would be:-
(2x + 2) (4x + 3)
[tex]8x^{2}[/tex] + 6x + 8x + 6
So the area would be => [tex](8x + 14x + 6)^{2}[/tex]
PLS HELP EASY QUESTION TYSM IF U HELP
Answers
Answer
c.
Step-by-step explanation:
4.50 + 4.50 = 9.00
and so on
triangle abc is similar to triangle fgh solve for x
Answers
Answer:
A= 24
Step-by-step explanation:
First find the scale factor. so the scale factor for these two triangles is 1.5.
21 / 14 = 1.5
18 / 12 = 1.5
So you are going to multiply 16 x 1.5
That will give you 24.
True or False?
When rainfall increases, the water level in the lake goes up. Rainfall is the independent variable in this situation. (4 points)
Answers
Answer:True
Step-by-step explanation: I did a quiz on it
Answer:
it is true am I right of this question
1) Complete the input-ouput table for the linear equation y = 4x + 2.
Answers
Answer:
5, 42, 15, 82
Step-by-step explanation:
y=4x+2
22=4x+2
20=4x
5=x
y=4(10)+2
y=40+2
y=42
62=4x+2
60=4x
15=x
y=4(20)+2
y=80+2
y=82
what should be subtracted from -5/3 to get 5/6
Answers
Answer:
-3/4-x=5/6
x=-3/4-5/6
x=-3*6-5*4/6*4
x=-18-20/24
x=-38/24
x=-19/12
Step-by-step explanation:
hope it helps
stay safe love u
btw can i get brainliest
Answer:
-5/3 - x = 5/6
-x = 5/6 +5/3
-x/-1 = (5/2)/-1
therefore x = -5/2
therefore -5/2 must be subtracted
Colin invests £1100 into his bank account. He receives 5% per year simple interest. How much will Colin have after 6 years? Give your answer to the nearest penny where appropriate.
Answers
Answer:
Step-by-step explanation:
P = £1100
r = 5%
t = 6 years
I =P*r*t
[tex]I =1100*\frac{5}{100}*6\\\\I=11*5*6\\\\I = 330[/tex]
Amount = P + I = 1100 + 330 = £1430
ANSWER ASAP I WILL MAKE BRAINLYIST
solve 2x+2y=-4, 6x-2y=12 using Elimination
NO LINKS (i need the steps not just the answer)
Answers
Answer:
2x+2y=-4
since we don't know the value of the letters, we could ignore it. then we add 2+2 which equals 4
6x-2y=12
In this case this equation is incorrect.
Step-by-step explanation:
sorry if I'm incorrect
(please if I'm correct, I really need the brainliest)
Answer:
(1,-3)
or
x=1 y= -3
Step-by-step explanation:
Looking at this we can see that there's a 2y in both of the equations (one is negative while the other is positive and so we'll add them)
so we have
(2x+2y)+(6x-2y)= -4+12
this simplifies to
8x=8
x=1
We know that x=1 and so we will plug this back into one of the two equations
2(1)+2y= -4
2+2y= -4
2y= -6
y= -3
Therefore the solution is (1,-3)
What is the range of the function f(x) = -3x + 1 when the domain is {-2, 0, 3}?
A. all real numbers
B. {-31, -29, -32}
C. {7, 1, -8}
D. {-5, 1, -8}
Answers
Answer:
Solution given:
f(x) = -3x + 1
f(-2)=-3×-2+1=7
f(0)=-3×0+1=1
f(3)=-3×-3+1=-8
So
Range is {7,1,-8) is a required answer
What is the measure of the inscribed arc whose inscribed angle measures 36 degrees?
A. 36 degrees
B. 72 degrees
C. 108 degrees
D. 18 degrees
Answers
Answer:
b
Step-by-step explanation:
Answer:
it is A. or B.
Step-by-step explanation:
The temperature was 14`°F`. If the temperature dropped 5 degrees every hour for 4 hours, what is the temperature after the 4 hours? Which equation could represent this situation?
Answers
Answer:
-6F
Step-by-step explanation: It would be 5F(4hr) = 20F. So if you have 14F subtract 20F you get -6F. Hope this helped.
Andre and Mai are discussing how to solve for side AB. Andre thinks he can
use the equation tan(12 degrees)=x/6 to solve for AB. Mai thinks she can use
the equation tan(78 degrees)=6/x to solve for AB. Do you agree with either of
them? Show or explain your reasoning.
Answers
Answer:
Both Andre and Mai are correct
Step-by-step explanation:
A drawing of the the triangle ΔABC is created with MS Visio and attached here
In the drawing, we have;
Segment AB = x
Segment AC = 6
By trigonometric ratio, in a right triangle we have;
[tex]Tan(\angle X) = \dfrac{The \ length \ of \ the \ opposite \, side \ to \ \angle X }{The \ length \ of \ the \ adjacent\, side \ to \ \angle X}[/tex]
Where 'X' = 12° as shown in the figure, we have;
[tex]tan(12 ^{\circ}) = \dfrac{AB}{BC} = \dfrac{x}{6}[/tex]
Therefore, Andre is correct
Similarly, we have;
[tex]tan(78 ^{\circ}) = \dfrac{BC}{AB} = \dfrac{6}{x}[/tex]
Therefore, Mai is also correct
Therefore, Andre and Mai are correct.
Acellus
Find the volume of the following
square pyramid.
3 cm
2 cm
2 cm
V = [?] cm3
Enter
Answers
Answer: 4
Step-by-step explanation:
Below. What is m∠1?
m∠1 =
Answers
Answer:
m<1 = 70
Step-by-step explanation:
I'll have m<1 = x:
Exterior angles thm:
x + 31 = 101
x = 101 - 31
x = 70
Someone pls help me I’ll mark brainliest
Answers
Answer:
option 4
Step-by-step explanation:
it can't be greater or equal to so mark off the other ones and we also don't know how many games he played so put a variable beside that 2.5 hope this helps
Match each graph to the corresponding linear equation. help plzzzz i hate math
Answers
ANSWER:
GRAPH A: Equation 4
GRAPH B: Equation 3
GRAPH C: Equation 2
GRAPH D: Equation 1
Nikki grows 20 tomato plants.
She measures their heights to the nearest centimetre, and writes them down.
Answers
Answer:
5 ≤ h < 10 = 2
10 ≤ h < 15 = 6
15 ≤ h < 20 = 10
20 ≤ h < 25 = 2
A jar has 28 cherry-flavored candies, 19 strawberry-flavored candies, 20-orange flavored candies, and 33 lemon-flavored candies. If a candy is taken from the jar at random, what is the probability that it will be a cherry-flavored cnady?
Answers
Answer: 7/25 or 28%
Step-by-step explanation:
28 (cherry) + 19 (strawberry) + 20 (orange) + 33 (lemon) = 100 (total)
so p(cherry), or the probability of getting cherry, is 28/100 (7/25)
that as a percent is 28%
f(x)=x^2. what is g(x)?
Answers
g(x)=1/3x^2
What is the value of this expression when x= -4 and y= 64? -437 + 12 O A O OB. OC. OD. -48
Answers
an answer from the choices I would pick -16
What is the principal square root of 36?
A. 6
B. 7
C. 8
D. 9
Answers
Answer:
A. 6
Step-by-step explanation:
square root is the number that when multplied by itself will give you the specified amount.
6 x 6 = 36
Edison, Xiu, and Amia are childhood friends who go to different high schools. They were wondering if there's
a difference between their schools in the number of friends people have on social media.
They each surveyed a random sample of students from their schools, asking for the number of friends they
have on social media. Here are the results:
They want to perform a x2 test of homogeneity on these results.
What is the expected count for the cell corresponding to students from Edison's school that have more
than 300 friends?
You may round your answer to the nearest hundredth.
Expected:
Answers
Answer:
22.33
Step-by-step explanation:
khan
Find the area of the shape.
Answers
Answer:
area = 72 yd²
Step-by-step explanation:
area = (4 x 10) + (4 x 8) = 72 yd²
Which two-dimensional shape could be created by a plane
slicing vertically through this hemisphere?
Answers
Answer:
circle
Step-by-step explanation:
A semicircle could be created by a plane slicing vertically through a hemisphere.
What is geometry?Geometry is the description of figures in a space with a specific number of dimensions and types. Plane geometry is the most prevalent sort of geometry (dealing with objects like the point, lines, circles, triangles, and polygons),
The plane would cut through the middle of the hemisphere, creating a circle with half the diameter of the original hemisphere. This circle is the base of the semicircle and the curved surface of the hemisphere forms the arc of the semicircle.
Thus, a semicircle could be created by a plane slicing vertically through a hemisphere.
Learn more about the circles here:
brainly.com/question/1554214
#SPJ2
Kristen needs to earn $320 in commission this week. She earns 8%
what she sells at the electronics store. How many dollars worth of
merchandise does she need to sell? Round to the nearest dollar. *
Answers
If she needs to earn $320, and she earns 8% commission, you’re looking for what 8% of original amount equals $320.
X = original amount
8% = .08
$320 = amount needed
X * .08 = $320.
X = $320/.08
X= $4,000
Kristen needs to sell $4,000 worth of merchandise at an 8% commission rate to earn $320.
Find the values of x and y. Write your answers in simplest form.
Answers
Answer:
x = 4
y = 2√2
Step-by-step explanation:
This triangle can be recognized as a 45 - 45 - 90, right isosceles triangle. The hypotenuse in a right isosceles triangle is √2 times a leg. We can say:
x = √2 * 2√2
x = 4
Since the triangle is isosceles, we can say the legs are equal, therefore:
y = 2√2
Why is Armin so precious?
Answers
Answer:
bc hes a babyyyyy <3333
Step-by-step explanation:
6. A particle is moving on a straight line such that a(t) = cost, s(0) = 0, v(0) = 5.
Find the position s(t) of the particle.
Answers
Step-by-step explanation:
St3-623t+4St3-623t+4V=St3-623t+4V=dsSt3-623t+4V=dsdtSt3-623t+4V=dsdtSo 3t²12 + 3 = vSt3-623t+4V=dsdtSo 3t²12 + 3 = vagain differentiate,a =St3-623t+4V=dsdtSo 3t²12 + 3 = vagain differentiate,a =6t - 12 = 0St3-623t+4V=dsdtSo 3t²12 + 3 = vagain differentiate,a =6t - 12 = 0t=2sSt3-623t+4V=dsdtSo 3t²12 + 3 = vagain differentiate,a =6t - 12 = 0t=2sv=3(2)² - 12 x 2+3=-9ms-1Annie buys some greeting cards. Each card costs $1.75. She pays with a twenty dollar bill.
Let n represent the number of greeting cards Annie buys. Write an expression that represents
the amount of change Annie should receive.
Enter your expression in the space provided.
Answers
Answer:
Step-by-step explanation: