2x + 7y = 3
2x = 3 - 7y
x = [tex]\frac{3x-7}{2}[/tex]
2x + 7y = 3
7y = 3 - 2x
y = [tex]\frac{3 - 2x}{7}[/tex]
Which side lengths form a right triangle?
Choose all answers that apply:
A
3.4.5
B
7.8.9
3.9.95
Answer:
A. 3.4.5
Step-by-step explanation:
I looked it up and it forms a right angle.
I have a big question what is 720 x 0.1
Answer:
72
Step-by-step explanation:
Answer:
72
Step-by-step explanation:
I hope this helps :)
Find the area of the semicircle shown below. Use 3.14 for TT
Round your solution to 2 decimal places.
Answer:
r=d/2=18/2=9cm
area of the semicircle=1/2 (πr²)=1/2 (3.14×9²)=127.17cm²
How do I do 2 and 3
Answer:
y=52
x=46
questions 3
x=84
y=84
Step-by-step explanation:
Answer:
#2: x = 64 y = 32[tex]\sqrt{3}[/tex]
#3: x = 6[tex]\sqrt{2}[/tex] y = 6[tex]\sqrt{2}[/tex]
Or, if you are supposed to write your answers in decimal form instead:
#2: x = 64 y = 55.43
#3: x = 8.49 y = 8.49
Step-by-step explanation:
Special right triangles have specific angle measurements that tell you the lengths of each side. I attached an image that explains the rules of different special right triangles in case you need it :)
#2 is a 30-60-90 triangle. This means that x (the side opposite the 90° angle) is two times the length of the shortest side (32×2), and y is equal to 32[tex]\sqrt{3}[/tex].
#3 is a 45-45-90 triangle. This means that x (the side opposite the 45° angle) is equal to y (the side opposite the other 45° angle). The hypotenuse, 12, is x[tex]\sqrt{2}[/tex] (or y[tex]\sqrt{2}[/tex], since x = y). This means 12 = x[tex]\sqrt{2}[/tex]
3.) The ratio of dogs to cats at the animal shelter is 4:1. If there are a total of 85 dogs and cats
at the shelter, how many dogs are at the shelter?
Answer:
Step-by-step explanation:
The ratio of dogs to cats is
quantities relative to each other. There are two cats and one dog. This means there are twice as many cats as dogs, or half as many dogs as cats.
...
Equivalence.
cats : dogs
8 : 4
Answer:
d
Step-by-step explanation:
yes
f(x) = x? – x3
Select the value of f(-2)
4
-12
12
A
B
C D
Step-by-step explanation:
f(x) = x² - x³
f(-2) = (-2)² - (-2)³
= 4 - (-8)
= 4 + 8 = 12
Which of the following pairs of triangles can be proven congruent through SAS?
Answer: A
Step-by-step explanation: both triangle have a congruent side, angle, and second side
PLEASE PLEASE HELP ASAP 30 POINTS AND WILL GIVE BRAINIEST
what is the measure of angle ABC
What is the measure of angle CBE
what is the measure of angle DBE
What is the measure of angle ABD
Answer:
hope this is what u want
and don't mind my handwriting I wrote it as fast as I could
The model below is shaded to represent 7 3/10
Answer:
blue 7.3
Step-by-step explanation:
Answer:
7.3
Step-by-step explanation:
There are 7 groups with 10 parts in each, 7 complete rows are filled in. 3 are left in the last row. This means that there are 7 wholes with 3 left over. 7.3
What is the purpose of having like terms on each side
of the equation?
Answer:
A frequently-used procedure in algebra is the process of combining like terms. This is a way to "clean-up" an equation and make it much easier to solve. In case you've forgotten, a term is each single part of an expression. For example, in the expression 4x+3+7y 4 x + 3 + 7 y , there are three terms: 4x , 3 , and 7y .
I don’t know what to do please help
Answer:
d i think can u give me a bainliest
Step-by-step explanation:
If the cost of 10 tables is $750. Find the number of tables that can be purchased with $8250.
Find the missing side. Round
to the nearest tenth.
Х
141
43°
у
X=[?]
Answer:
x = 206.7
Step-by-step explanation:
law of sines:
sin 90° / x = sin 43° / 141
sin 43° · x = 141
x = 141 / sin 43°
The measure of the length of the hypotenuse is 206.75 and the measure of the length of the base is 151.20 units.
What is a right-angle triangle?It is a type of triangle in which one angle is 90 degrees and it follows the Pythagoras theorem and we can use the trigonometry function.
The perpendicular is 141 and the angle opposite to the perpendicular is 43 degrees. Then the value of the base and hypotenuse will be
The length of the base will be
[tex]\rm \dfrac{141}{y} = \tan 43^o\\\\y\ \ \ = \dfrac{141}{ \tan 43^o}\\\\y \ \ \ = 151.20[/tex]
Then the length of the hypotenuse will be
[tex]\rm x = \dfrac{141}{\sin 43^o}\\\\x = 206.75[/tex]
More about the right-angle triangle link is given below.
https://brainly.com/question/3770177
#SPJ2
If y= cx" and dy/dx =
4/root x
what are the values of c and n?
Answer:
c = 8
n = 1/2
Step-by-step explanation:
Since dy/dx is the derivative form, we can integrate the answer to get the value of y.
The values of c and n are obtained by forming the equations as 1/2 and 8 respectively.
What is differentiation?The differentiation of a function is defined as rate of change of its value at a point. It can be written as f'(x) = (f(x + h) - f(x)) /(x + h - x).
It can be stated in terms of geometry as the slope of tangent of the function at a given point.
It is given as y = cxⁿ and dy/dx = 4/√x.
Take the derivative of y = cxⁿ with respect to x as,
dy/dx = cd(xⁿ)/dx
⇒ nc × xⁿ⁻¹
Compare the obtained derivative with 4/√x to obtain,
nc = 4 and n - 1 = -1/2
⇒ n = 1/2 and c = 8
Hence, the values of c and n are 1/2 and 8 respectively.
To know more about differentiation click on,
https://brainly.com/question/24898810
#SPJ2
Research has shown that approximately 1 woman in 600 carries a mutation of a particular gene. About66 % of women with this mutation develop cancer. Find the probability that a randomly selected woman will carry the mutation of this gene and will develop cancer.
Answer:
add otherwise I don't know sorry im on that question
Step-by-step explanation:
find the product (a + 3)(a - 2)
Answer:
a2 + a − 6
Step-by-step explanation:
the a with the 2 beside of it is to the power of
Please write these in a fraction form, thank you have an AMAZING day!
1. 2/5 ÷ 1/3= ?
2. 3/4 ÷ 1/2= ?
Answer:
1 = 1 1/5
2=1 1/2
Step-by-step explanation:
s - k + x; when s = 7, k = 4, x = 6
what does this mean someone help quick
Answer:
you just plug in those numbers... 7-4+6 = 9
if you guess what 81 ➗ 918 =
ill give brainiest
Answer:
918 ➗ 81
Step-by-step explanation:
Answer:
It's about 0.088.
What is 2(x -3) in simplest form?
Answer:
2x-6 is the right answer
Step-by-step explanation:
I'm very good at math
HALPPPPP!!
The equation of direct proportion y=kx is given by the table. Find the coefficient k, copy the table and fill it in!
Answer:
K = - 4
Step-by-step explanation:
And i don't have a paper now so I cann't to complet the table sorry
Find the y intercept and x intercept of the line below.
Write the equations of these circles.
a) Centre origin, radius 3/2
b) Centre origin, radius 0.5
c) Centre origin, radius root 3
The equation for the circle is x² + y² = 9/4 if the Centre origin, radius 3/2, and for the Centre origin, radius 0.5 is x² + y² = 0.25.
What is a circle?It is described as a set of points, where each point is at the same distance from a fixed point (called the center of a circle).
It is given that:
The center of the circle is (0, 0) or the origin.
The radius of the circles is given.
As we know, the standard equation for the circle is:
(x - h)² + (y - k)² = r²
Here (h, k) is the center and r is the radius of the circle.
a) Centre origin, radius 3/2
Plug h = 0, k = 0, and r = 3/2
x² + y² = (3/2)²
x² + y² = 9/4
Similarly,
b) Centre origin, radius 0.5
x² + y² = 0.25
c) Centre origin, radius √3
x² + y² = 3
Thus, the equation for the circle is x² + y² = 9/4 if the Centre origin, radius 3/2, and for the Centre origin, radius 0.5 is x² + y² = 0.25.
Learn more about circle here:
brainly.com/question/11833983
#SPJ2
If 11 times a number is added to twice the number, the result is 78.
Answer:
x = 6
Step-by-step explanation:
Plsss help I suck at math and I’m sure one of you are super smart ♀️
Answer:
3
Step-by-step explanation:
-14x - 7 + 5y - x = -14x - x - 7 + 5y
= -15x - 7 + 5y
Answer:
Step-by-step explanation:
3
choose the equivalent to 5 (2x-3)-4 (3x-2)=18
Team A scored the following points per game 20,17,25,25,13,25,12,25,25 and 23 team B scored the following points per game 25,25,9,10,25,11,25,15,10 and 25 what is the mean of team A and team B
Answer:
Mean of team A = 21
Mean of team B = 18
Step-by-step explanation:
Formula:
Mean = Sum of values / Number of values
Calculations:
[tex]A = \frac{20+17+25+25+13+25+12+25+25+23}{10} = \frac{210}{10} = 21[/tex]
[tex]B = \frac{25+25+9+10+25+11+25+15+10+25}{10} =\frac{180}{10} =18[/tex]
Mean of team A = 21
Mean of team B = 18
If the turning point is lower than the nearby point it's called a
Answer:
Step-by-step explanation:
Local minimum. It would be the minimum value of the function not including the end points. If you are including the end points, its an absolute minimum
If 210 people said football was their favorite sport to watch, how many people were surveyed? 42% said football.
Answer:
500 people surveyed
Step-by-step explanation:
210 / 42 = 5
5 x 100 = 500
Answer:
500 people were surveyed
Step-by-step explanation:
Let the total number of people surveyed be x
42% said football was their favorite sport to watch
=> 42/100 x = 210
=> x = (210 × 100) / 42
=> x = 21000 / 42
=> x = 500
Therefore, 500 people were surveyed.
Hope it helps :)
Please mark my answer as the brainliest
factor the expression-15x +39
Answer:
3(5−13)
Step-by-step explanation:
..............
Answer:
-3(5x-13)
Step-by-step explanation:
The greatest common factor is 3 and you want the # with the variable to be positive, usually, so just factor -3 out and that's what you get.