Answer:
40
Step-by-step explanation:
Use PEMDAS and follow the operations from left to right
Answer:
40
Step-by-step explanation:
use addition and subtraction to get answer
Use the circle to solve for the missing measures. Assume lines that appear tangent are tangent. Do NOT round any answers.
The given circle having two external tangents, according to circle
theorem, have the following values;
r = 3m∠1 = 82°m∠2 = 49°x = 82°How can the radial length and angles be found?r² + 1.6² = (0.4 + r)²
(0.4 + r)² - (r² + 1.6²) = 0
0.8·r - 2.4 = 0
0.8·r = 2.4
r = 2.4 ÷ 0.8 = 3
r = 3y = 49°
From the two tangent angle theorem, we have;
m∠1 = ((82 + 98 + 82) - (360 - ((82 + 98 + 82)))) ÷ 2 = 82
m∠1 = 82°According to circle theorems, angle at the center is twice angle
subtended at the circumference.
m∠2 = (360 - (82 + 98 + 82)) ÷ 2 = 49°
m∠2 = 49°The length of the chord subtended by the arc x is equal to the length of
the chord subtended by 89°, which gives;
x = 82°Learn more about circle theorems applications here:
https://brainly.com/question/16879446
Given: x ∥ y w is a transversal of x and y. Prove: ∠4 ≅ ∠5 Complete the two-column proof.
Answer:
A: vertical angles
B: corresponding angles theorem
C: transitive property
Step-by-step explanation:
Answer:
A: vertical angles
B: corresponding angles theorem
C: transitive property
Step-by-step explanation:
Devi’s dog weighs 4 times as much as her cat. Her dog also weighs 13 pounds more than the cat. How much does each pet weight?
Answer: The cat's weight is 4.33 pounds
• The dog's weight is 17.32 pounds.
Step-by-step explanation:
Let the weight of the cat be represented by a.
Devi’s dog weighs 4 times as much as her cat. This can be written as:
= 4 × a
= 4a
Her dog also weighs 13 pounds more than the cat. This can be written as:
= a + 13
We then equate both equations. This will be:
4a = a + 13
4a - a = 13
3a = 13
a = 13/3
a = 4.33 pounds
The cats weight is 4.33 pounds
Since the dog's weight = 4a = 4 × 4.33 = 17.32 pounds
F(x)=2x^2+16x-7 in vertex form
f(x) = 2 ( x² + 8x ) - 7
= 2 [(x + 4)² - 4²] - 7
= 2 (x + 4)² - 32 - 7
= 2 (x + 4)² - 39
(x+4)² = x² + 2*x*4 + 4² = x² + 8x + 4²
it's why
x² + 8x = (x + 4)² - 4²
Answer:
y=2(x+4)^2−39
Step-by-step explanation:
Based on my calculation that´s the answer :-)
A car comes to a stop, it slows from 25 m/s in 2. 8 sec. Find the acceleration of the car
Answer:
input the formula of acceleration and the the answer will be
8.928571429
Nicholas wrote the steps below to
simplify the fraction _
20
30. Melanie divided the numerator and
denominator of _
20
30 by 2 to write the fraction in the simplest form.
Explain and correct the error that each student made.
Answer:
He does not divide the numerator and the denominator by the same number. Nicholas divides 20 by 5 and 30 by 6. He ought to have divided 30 by 5 as well and then simplified.
P.S. Nicholas should have just divided both 20 and 30 by 10 to simplify in one step
Is a  circle not a parallelogram?
Answer:
A parrelogram is a shape with four sides (and something else I forgot). That doesn't matter because a circle doesn't even have sides! Therefore, it's not a parallelogram.
how do I find the surface area and volume of any shape?
Answer:
Step-by-step explanation:For any shape it’s always true that for volume
V
the surface area is: =2‾‾‾√3
for some constant depending on the shape. So to work out the surface area from the volume we just need to know the value of for the shape in the question.
For a cube for example we have that =6, assuming consistent units i.e.: unit 2 for area and unit 3
3
for volume.
More generally if we have formula for both volume and surface area in terms of a particular one dimensional measurement
d
of the shape then we can always write these formula in the form:
=13
=12
for constants constants 1 and 1
. Then we have:
=1‾‾‾√3
=1(1)2‾‾‾‾‾‾√3
=121‾‾‾√32‾‾‾√3
and therefore:
=121‾‾‾√3
For example for a sphere we have that that =42 and =433 and therefore:
=4(43)2‾‾‾‾‾‾√3
=36‾‾‾‾√3
So if a particular sphere has volume =8 then we can calculate its surface area to be:
=36‾‾‾‾√382‾‾√3=436‾‾‾‾√3 m2
Put the following equation of a line into slope-intercept form, simplifying all
fractions.
6x + 4y = 8
Answer:
[tex]y=-\frac{3}{2}+2[/tex]
Step-by-step explanation:
First subtract 6 from both sides:
[tex]6x+4y=8[/tex]
-6 -6
New equation becomes:
[tex]4y-6=8[/tex]
Divide all by 4:
4 -6 8
--- --- ---
4 4 4
[tex]y=-\frac{3}{2}+2[/tex]
Hence, the final answer is [tex]y=-\frac{3}{2}+2[/tex]
what is the slope of a line perpendicular to the line whose equation is x+y=-1
Carter's baby formula cost $27.93 for 21 ounces. What is the unit rate per
ounce?
Answer:
$1.33
Step-by-step explanation:
27.93:21
Divide 27.93 by 21.
What is the solution for the equation
(10-5y|= 20
Answer:
y = -2
Step-by-step explanation:
To find the answer, use property of inequality:
10-5y=20
Undo the +10, so - 10 to the other side
so,
-5y= 10, or -5xY.
so divide by -5 from both sides:
10/-5=-2
so, the remain of the equation is:
y = -2
which is the answer
$43 dinner ; 18% gratuity
John and 2 friends are going out for pizza for lunch. They split one pizza and 3 large drinks. The pizza cost $12.50. They spend a total of $16.85. Write an equation to represent the problem. Find the cost of one large drink.
Answer:
Hm, okay.
Step-by-step explanation:
So, if the pizza cost $12.50, and the total money spent is $16.85, we must first subtract our money spent on pizza from the total amount spent.
$16.85 - $12.50 = $4.35
So, that means that John and his two friends spent $4.35 on 3 large drinks. But how do we figure out how much each individual drink cost?
We divide $4.35 by 3.
$4.35 / 3 = $1.45.
So, the amount of money spent on one large drink was $1.45.
Write an equivalent multiplication equation to / 1 / 4 / 2 =
PLEASE ANSWER I WILL MARK BRAINLIST
Answer:
8
Step-by-step explanation:
Can someone help me 5-13 please?
Answer: see below
Step-by-step explanation:
#5 - 7: Domain are the x-values and Range are the y-values.
5) Coordinates are: (-2, 3), (0, 3), (2, 3), (4, 3)
Domain: x = {3} Range: y = {-2, 0, 2, 4}
6) All points on the curve between -4 and 2 (x-values) & 3 and 6 (y-values). Endpoints are included.
Domain: -4 ≤ x ≤ 2 Range: 3 ≤ y ≤ 6
7) All points on the curve between 2 and 7 (x-values) & 1 and 6 (y-values). Endpoints are not included.
Domain: 2 < x < 7 Range: 1 < y < 6
#8 - 11: Choose points for x. Plug them into the equation to solve for y.
To graph the equation, plot the points and connect the dots.
8) x y = x
-2 -2
-1 -1
0 0
1 1
2 2
9) x y = 2x+1
-2 2(-2)+1 = -3
-1 2(-1)+1 = -1
0 2(-0)+1 = 1
1 2(1)+1 = 3
2 2(2)+1 = 5
Note:
You are allowed a maximum of 3 questions. I answered 5 questions. If you need help with the rest of your homework, you will need to create another post.
Which expressions are equivalent to 78 • 7? Select all that apply.
Answer:
B & C are the correct answers
[tex]b. \: \: \frac{7 {}^{18} }{7 {}^{9} } \\ c. \: \: (7 {}^{3} ) {}^{3} \\ e. \: \: 7 {}^{4} .7 {}^{5} \\ \\ correct \: answers[/tex]
Thank you ☺️☺️
please help please please
Answer:
f(-2) = 8
Step-by-step explanation:
Graph y = f(x)
Find value of f(-2)
when f(x) = f(-2)
Here we are looking for the value of y when x = -2
From the graph when x = -2 then y = 8
Therefore, f(-2) = 8
MULTIPLE CHOICE QUESTION
The REFLECTION of a point should ALWAYS be the SAME DISTANCE away from the opposite side of the line of reflection.
FALSE or TRUE?
Answer:
True
Step-by-step explanation:
A reflecrion always is the sam edustance because then it makes it look like they are reflecting each other.
On a certain hot summer's day, 444 people used the public swimming pool. The daily prices are $1. 75 for children and $2. 50 for adults. The receipts for admission totaled $1065. 75. How many children and how many adults swam at the public pool that day
Answer:
the total receipt for admission is 1065.75? or just 1065? please tell me so I can help you T_T
In the figure, m∠2 = (20x + 52)° and m∠7 = (40x – 48)°
For what value of x is line m parallel to line n?
18
5
44
3
Answer:
The answer is 5
Step-by-step explanation:
I took the test :)
Answer 5
Step-by-step explanation:
Percy paid $24. 10 for a basketball. The price of the basketball was $22. 99. What was the sales tax rate?.
Answer:
$3.11
Step-by-step explanation:
you have to subtract 24.10 from 22.99
Answer:
First let's find the increase of the original price to it's new price;
24.10 - 22.99 = 1.11, there was a $1.11 increase.
Though, we need to find the percentage, using the formula:-
Changed price 100
____________ x _____ (100%)
Original amount 1
Our changed price was 1.11, and our original price was 22.99.
1.11 100
_____ x _____ = 4.828 which rounds to 4.83%
22.99 1
Find the expected value of the random variable with the given probability distribution.
Answer:
The formula is given as E(X)=μ=∑xP(x) Step-by-step explanation:
multiply each value of the random variable by its probability and add the products.
How many solutions will this equation have? y = 2x^2 + 7x - 15
In a class of 30 pupils, if 16 are males. Calculate the ratio of females : total
A bus driver marries a dental assistant. What is their
combined income each week?
Helppppp please
Answer:
it should be 1571.19
Step-by-step explanation:
If you combine the you just need to add them using the amount under weekly 584+987.19= 1571.19 weekly
-4m + 2n = 6
-4m + n = 8
solve for and x and y steps
I am doing this problem assuming that you mean to solve for m and n as x and y do not exist in this system of equations.
-4m+2n=6
-4m+n=8
We can see that the coefficient of x for both equations are -4; therefore, elimination with subtraction is possible.
First equation - second equation
n=-2
Then substitude back in to solve for m
-4m+(-2)=8
4m=10
m=5/2
Therefore the answer is
n= - 2
m= 5/2
I hope this helped and if you have any questions please ask.
need help pls and how was yall day
f=1.8c+32
Answer:
author link
annaking0830
Ambitious
14 answers
987 people helped
Answer:
0.5f - 17.77
Step-by-step explanation:
im pretty sure thats right im not 100% sure more like 80% sure but ya thats what i got hope its right :)
p.s i do khan too!!
Answer:
Answer:
author link
annaking0830
Ambitious
14 answers
987 people helped
Answer:
0.5f - 17.77
Step-by-step explanation:
im pretty sure thats right im not 100% sure more like 80% sure but ya thats what i got hope its right :)
Step-by-step explanation:
i need help ASAP!!!!!!
Answer:
A)Deductive
B)Deductive
C)Inductive
D) Deductive
Step-by-step explanation:
Translate point (2, -1) three units to the left. Write the new coordinate as
an ordered pair. May someone help ASAP !
Answer:
(-1,-1)
Step-by-step explanation:
Because you're translating something 3 units to the left, then you are moving along the x-axis, so you will subtract 3 from 2.