Answer:
37.5
Step-by-step explanation:
First you have to realize that these are similar triangles.
You can do a easy cross multiplication with these types of questions by forming an equation with the similar angles.
put the smaller above the decimal and the bigger one below like this.
[tex]\frac{8}{25}[/tex]=[tex]\frac{12}{x}[/tex]
Now cross multiply
8x=300
x=37.5
find the marked angles . Some construction may be necessary
Step-by-step explanation:
126 / 2 = 63 because the circular angle is 1/2 of the center angle
What’s the difference between rigid transformations and non rigid transformations?
There are two different categories of transformations: The rigid transformation, which does not change the shape or size of the preimage. The non-rigid transformation, which will change the size but not the shape of the preimage.
Someone please help I want to double check PLEASEEEEE HELLPPPP
Answer:
correct
Step-by-step explanation:
mencioné tres aparatos tecnológicos que hacen su diseño o utilicen para su fun
cionamiento ruedas de fricción
What is the surface area?
Answer:
1/2×4×2×6+8×5×3=144cm²
How do I solve this? i don't know how to set it up.
Answer:
yes
Step-by-step explanation:
Answer:
31.5
Step-by-step explanation:
First we want to find what side NP is equal to. To do that we divide 4 by 12
12/4=3 so side mp=3
next we want to find the scale factor of the rectangles. to do that we divide 4 from 9
9/4=2.25
next we want to find what side st is equal too
to do that we multiply 3 by 2.25
3x2.25=6.75
finally we want to find the perimeter and to do that we do 2(6.75)+2(9)
2(6.75)+2(9)=31.5 so the perimeter of rectangle RSTU is 31.5
hope this helps :)
Jen uses 8.6 gallons of gasoline to drive 164.7 miles. Which is the best estimate for the number of miles per gallon of gasoline her vehicle gets?
Answer:
19.15 miles/gallon
Step-by-step explanation:
Gasoline used = 8.6 gallons
Distance driven = 164.7 miles
Number of miles per gallon = Distance driven / Gasoline used
= 164.7 miles / 8.6 gallons
= 19.151162790697 miles/gallon
Approximately 19.15 miles/gallon
Number of miles per gallon of gasoline her vehicle gets is 19.15 miles/gallon
How do I solve for x?
Answer:
The answer is 98
Step-by-step explanation:
Subtract the sum of the two angles from 180 degrees.
The sum of all the angles of a triangle always equals 180 degrees. Write down the difference you found when subtracting the sum of the two angles from 180 degrees. This is the value of X.
62+20=82
180-82=98
98+20+62=180
A freezer's temperature is decreasing at a rate of 2° F per hour. When the temperature was first measured, it was 38° F. Write a linear equation that describes the relationship between the temperatures and the time. Then, make a graph to show the relationship.
Answer:
equation: y=-2x+38
graph:
A shopper pays $45 for 3 packs of T-shirts. If each pack costs the same amount and contains
5 T-shirts, what is the cost per T-shirt?
Answer:
$3Step-by-step explanation:
3 packs each 5, then total T-shirts:
3*5 = 15Total cost:
$45Cost of one T-shirt:
$45/15 = $3Each pack costs
45/3$15Each T shirt costs
15/5$5please help which multiple choice answer is it
Answer:
it's the 3rd answer
Step-by-step explanation:
moves around the line just like the shape shows
Answer:
The answer would be C
Step-by-step explanation:
If you were to revolve the figure shown in C you would get the figure above
I really need help with this question I’m taking a test it’s urgent !!
Answer:
EF = 10
Step-by-step explanation:
QUICK
9/15 = 6/x
x=10
PLEASE HELP ASAP 30 POINTS!!! WILL GIVE BRAINLIEST!!
1. In the first step of proof, the left-handed side of the following identity is factored. Which fundamental identity is used in the second step of the proof?
2. Simplify the expression. csc^2x-1/1+sinx
1. The factoring step is
sin²θ - cos²θ sin²θ = sin²θ (1 - cos²θ)
Then the Pythagorean identity is invoked:
cos²θ + sin²θ = 1 → 1 - cos²θ = sin²θ
so that
sin²θ - cos²θ sin²θ = sin²θ sin²θ = sin⁴θ
(third option)
2. Recall that a ² - b ² = (a - b) (a + b). The numerator here is such a difference of squares:
csc²x - 1 = (cscx - 1) (cscx + 1)
Then
(csc²x - 1) / (1 + sinx) = ((cscx - 1) (cscx + 1)) / (1 + sinx)
Recall that cscx = 1/sinx, so rewrite this as
… = ((1/sinx - 1) (1/sinx + 1)) / (1 + sinx)
In the numerator, pull out a factor of 1/sinx from both terms:
… = (1/sinx (1 - sinx) × 1/sinx (1 + sinx)) / (1 + sinx)
… = ((1 - sinx) (1 + sinx)) / (sin²x (1 + sinx))
Cancel the common factor of 1 + sinx :
… = (1 - sinx) / sin²x
Expand the fraction and rewrite sin in terms of csc :
… = 1/sin²x - sinx/sin²x
… = 1/sin²x - 1/sinx
… = csc²x - cscx
Factor out cscx to get the second option,
… = cscx (cscx - 1)
Bruno claims that the solution to the linear question -3(2x+6)+25=1 is x=1 he shows the step by stepping below to justify his solution. Look at he picture pls I’ll do branlist :)
Answer:
B
Step-by-step explanation:
How do the volumes of cylinders, cones, and spheres relate to each other if they have the same radius and height?
Answer:
search it up
Step-by-step explanation:
ANSWER ASAP DUE TODAY
Find the measure of the marked acute angle to the nearest degree.
A) 25
B) 30
C) 120
D) 60
Answer:
B) 30
Step-by-step explanation:
An acute angle is an angle that is more than 0° but less than 90°. Common examples of acute angles include: 15°, 30°, 45°, 60°, etc.
Brainlist Pls!
Answer:
B
Step-by-step explanation:
a) − 5 ( 6 n + 6 ) ≤ 30
b) 8 v − 4 ( v − 8 ) > 8
Answer:
a) n ≥ -2
b) v > -6
Step-by-step explanation:
You did not state what you would like us to do with these. I will assume simplify.
a)
− 5 ( 6 n + 6 ) ≤ 30 first, distribute -5
-30 n + -30 ≤ 30 now, add 30 to both sides so we may isolate n our variable
-30 n ≤ 60 now, divide -30 on both sides so we may isolate n completely. When we do this, the sign changes direction
n ≥ -2
b)
8 v − 4 ( v − 8 ) > 8 first, distribute -4 (note: two negatives equal a positive)
8 v - 4v + 32 > 8 now, simplify
4v + 32 > 8 now, subtract 32 from both sides
4v > -24 now, divide both sides by 4 to isolate v
4v > -24
v > -6
Hope this helps! Please make brainliest <3
1. There are 6 feet of ribbon in a roll. Samantha uses 3/4 foot pieces of ribbon to decorate gifts. How
many gifts can she decorate with one roll of ribbon?
Write an equation (with solution) to represent
this problem
Answer: 8
Step-by-step explanation:
take 72 inches and divide it by 9 inches and you will have the answer
if the cost of 1 pen is 15.75, find the cost of 7 pens
Answer:
110.25
Step-by-step explanation:
Cost of 1 pen = 15.75
Cost of 7 pens = 15.75 × 7 = 110.25
Answer:
$110.25
Step-by-step explanation:
1 pen = $15.75
7 pens x $15.75 = $110.25
(this pen is expensive t.f)
Tesfa is x years old. his father is 4 times as old as Tesfa. Her mother is 7 years younger than his father. If their three ages add up to 101 years, how old is Tesfa?
tesfa = x
dad = 4x
mom= 4x-1
x+4x+4x-1=101
9x+1=101
9x=100
100/9= 11.1
I need help please please 20 points!!
Solve for x.
Answer:
13+8 = 7+ x
21=7+x
21-7 = x
x = 14
PLEASE HELP Camille went for a 45-minute walk. If she
burned an average of 3.2 calories each
minute, how many total calories did she burn
Answer:
144
Step-by-step explanation:
multiply 3.2 by 45, or calories burned by minutes walked
In the diagram shown, CD is the image of AB after a reflection across line EF . Which of the following pairs of segments do not have to be the same length.
(1) AB and CD
(2) BF and EF
(3) AE and CE
(4) BF and DF
How would you use math outside of school?
What do you mean? Like what do you mean doing math outside?
On a map drawn to scale, 5 cm represents 30 kilometers. If a line a the same map that connects 2 cities is 7 cm long, what is the distance between the 2 cities?
Answer:
42
Step-by-step explanation:
You can use proportions to solve this problem.
[tex]\frac{5cm}{30km}[/tex]=[tex]\frac{7cm}{xkm}[/tex]
Now just cross multiply.
5cm*Xkm=7cm*30km
you can simplify the cm and km since its multipying.
5x=210
x=42
The people of Bridgetown wanted to build a bridge across a nearby river. Since they were poor swimmers, their master Trigonomos agreed to measure the width of the river without actually crossing it. Trigonomos spotted a tree across the river and marked the spot directly across from it. Then he walked to another point 151515 meters down the river and found that the angle between his side of the river and the line connecting him to the tree was 76^\circ76 ∘ 76, degrees. What is the width of the river?
Answer:
60.16 m
Step-by-step explanation:
Let w = width of river
Using trigonometry :
The width, w of the river is can be calculated thus :
Tan θ = opposite / Adjacent
Tan 76 = w / 15
4.0107809 = w / 15
w = 15 * 4.0107809
w = 60.1617 m
Hence, width of the river is 60.16 m
A cell phone is on sale at $35
more than half of the regular
price. The sale price is $140.
Determine the regular price of the
cell phone.
Answer: v=210
Step-by-step explanation:
The linear model P = 3.75g + 1.5 predicts the total cost , P, in dollars, to purchase g gallons of gas at a gas station.Based on the linear model, how much should it cost to purchase 12 gallons of gas
Answer:
It would cost $46.50 to buy 12 gallons of gas.
Step-by-step explanation:
1. Replace the variables in [tex]P = 3.75g + 1.5[/tex] with the values you know:
[tex]P = 3.75g + 1.5, \text{ where } g =12\\P=3.75(12)+1.5[/tex]
2. Solve for P:
[tex]P=3.75(12)+1.5\\P=45+1.5\\P=46.5[/tex]
what is 3876153 x 46 =?????????
Answer:
178,303,038
Step-by-step explanation:
Multiply it
Or put it into a calculator
How many 1/9s are in 30?
Answer:
3,34
Step-by-step explanation:
mark me please thanks