Answer:
It is not a right triangles because 15^2 + 13^2 is NOT EQUAL to 19^2
let x, y, and z be the angles inside the triangle.
Law of cosines says:
19^2 = 13^2 + 15^2 - 2(13)(15)cos x
361 = 169 + 225 - 390 cos x
-33 = -390 cos x
-33/-390 = cos x
11/130 = cos x
x = inverse cosine (11/130)
= 85.14609471338569.....
Per law of sines:
sin x/19 = sin y / 13
(13/19)sinx = sin y
inverse_sine ( (13/19) sin x) = y
y = 42.9810733896016548....
Per law of sines
sin x/19 = sin z / 15
z = inverse_sine( (15/19) sin x)
= 51.8728352950227805....
So it is an acute triangle and yes, these angles add up to 180
Answer:
acute
Step-by-step explanation:
PLEASE HELP!!! I really need help with this question, so if anyone could spare a few min then thank you so much!! ;w;
Answer:
Hello! answer: -6
Step-by-step explanation:
Hope that helps!
I will give brainiest
Solve Jill's equation 30 + 6x = 20 + 8x What does the solution tell us about the T-shirt offers?
Answer:
Step-by-step explanation:
Answer:
X=5
Step-by-step explanation:
A sports company wants to package a ball with a 1.5-inch radius in sets of two. They have two options: a cylinder or a square prism.The company wants to use the package that has the least amount of wasted space. The company should choose
Answer:
The Company should choose to get the cylinder packages ( V = 42.39 in³ )
Step-by-step explanation:
The volume of a cylinder of radius of circumference 1.5 in and h = 1.5*4
h = 6 in is:
V(c) = π *r²*h = π * (1.5)²*6 = π *2.25*6
V(c) = 42.39 in³
Now V(p) = Square of the base ( of side 3 in) * h
h = 6 in
V(p) = (3)²*6
V(p) = 54 in³
If we compare these two volumes we see that the volume of the cylinder is small than that of the square prism
The cone and the sphere have the same volume. The diameter of the cone is 24 cm, and the diameter of the sphere is 18 cm.
What is the HEIGHT of the CONE? Use 3.14
...5, ___, 29, .....
The missing term is ___
Answer:
17
Step-by-step explanation:
I think the answer is 17 if helpful please mark me brainliest!
Answer:
12
Step-by-step explanation:
see if you do the math you will find out that its 12 17+12=29
The temperature was 70 then dropped to 30 how much is it now?
Answer:
nmdjskln Jdj
Step-by-step explanation:
heyy! i’ll give brainliest please help.
What type of function is shown in the graph?
A. Logistic growth
B. Exponential
C. Logarithmic
D. Rational
i need help please !
Answer:
[tex]D.\ 7 \frac{3}{4} * \frac{\sqrt{16} }{5} = \frac{31}{4} * \frac{4}{5} = \frac{31}{5} \\\\C. \ 7 \frac{3}{4} + \frac{\sqrt{16} }{5} =\frac{31}{4} + \frac{4}{5} = \frac{171}{20}[/tex]
Help me plz thank you
Answer:C
Step-by-step explanation: 100 x 23/100=23
What is the area of the triangle?
Answer:
The area of a right triangle of base b and height h is 1/2 × base × height (or) 1/2 × b × h.
Step-by-step explanation:
The area of a right triangle of base b and height h is 1/2 × base × height (or) 1/2 × b × h.
Answer:
36
Step-by-step explanation:
trust me bro im just trying to help
An animal with ________ has identical body parts on both sides of its body.
Answer:
Bilateral Symmetry?
Step-by-step explanation:
Write the slope intercept form of the equation for a line passing through (-3,-1) and
(0,4)
Answer:
y = 5/3x + 4
Step-by-step explanation:
First, you need to find the slope. Use the slope formula of (y^2-y^1) / (x^2 - x^1).
Plug the numbers in.
(4 - (-1)) / (0 - (-3))
5 / 3
Slope is 5/3
Now, you have an equation of y = 5/3x + b.
Since one of the points shows you what y equals when x=0, that is your y intercept.
PLEASE HURRY
What are the right triangles
Please I’ll give brainlyist
Answer:
is the answer 24 I hope this helps if I am wrong then let me know
-4x > 500...........................................
helppppp plzzz i will give brainiest im alost out of time
Answer:
[tex]10b^2-2b-6[/tex]
Step-by-step explanation:
Perimeter is 2(A+B)
[tex]5b^{2} -3b+2+2b-5\\5b^{2} -b-3\\2(5b^2-b-3)\\10b^2-2b-6[/tex]
Consider functions f(x) and g(x). Which expression is equal to f(x)* g(x)?
Answer:
can u show a pic
Step-by-step explanation:
An article costing Gh37000 was sold for Gh31450. What is the loss percent
Answer:
15%
Step-by-step explanation:
The first step is to find the loss
Cost price -selling price
37000-31450
= 5,550
The loss percent can be calculated as follows
= loss/cost price × 100
= 5550/37000 × 100
= 0.15×100
= 15%
Hence the loss percent is 15%
help me pleaseeeee. what is this?
Answer:
104
Step-by-step explanation:
all the angles of a triangle add up to 180, so set up an equation like this:
x+35+41=180
now solve for x
x=180-35-41
x=104
A man walks 1500 metres.
On a map this is shown as 3cm.
What is the scale on the map?
The scale on the map is 1 cm for 500 m.
What is scale factor?A scale factor is defined as the ratio between the scale of a given original object and a new object, which is its representation but of a different size (bigger or smaller).
Given that, A man walks 1500 metres. on a map, this is shown as 3 cm.
3 cm = 1500 m
1 cm = 500 m
Hence, The scale on the map is 1 cm for 500 m.
For more references on scale, click;
https://brainly.com/question/841108
#SPJ2
Find the volume of the rectangular prism
Thank you!!
Answer:90
Step-by-step explanation: do length x base x height to get your answer
Susie flips a coin three times. what is the probability of her getting tails all three times?
Answer:
18
Step-by-step explanation:
Hoped this helped!!
Answer:
1/8 or 12.5%
Step-by-step explanation:
It is a 0.5 percent chance of getting tails in a coin flip. Since you flip the coin three times, multiply the probability of getting tails in a coin flip three times. (0.5) Times (0.5) Times(0.5)= 1/8 or 12.5%.
How do you evaluate 3yx+2x when x=4 and y=-2
A. -28
B. -16
C. 8
D. 56
Answer:
B: -16
Step-by-step explanation:
Plug the variables in accordingly. 3(-2)(4)+2(4)
-6(4)+8
-24+8
-16
Determine the equation of the circle graphed below.
Answer:
Step-by-step explanation:
the formula for a circle not on the origin is :
(x−h)^2+(y−k)^2=r^2
for the circle shown it looks like the circle is centered at (1,3)
then h=1 and k=3 and the radius looks to be about 2
(x−1)^2+(y−3)^2=2^2
(x−1)^2+(y−3)^2=4
there is your equation for that circle shown in the graph
0.326 as a fraction
Answer:
163/500
Step-by-step explanation:
we will not only clearly explain how to get the answer to 0.326 as a fraction, but also prove to you that our answer is correct.
First, note that 1000 multiplied by .326 will get rid of the decimal point. Therefore, make a fraction where the numerator is .326 times 1000 and denominator is 1000 like this:
.326 x 1000
1000
Next, multiply the numbers in the numerator together and keep the denominator as is. Now our fraction looks like this:
326
1000
The greatest common factor of 326 and 1000 is 2, which means you can divide the numerator and denominator by 2 and keep the same value:
326 ÷ 2
1000 ÷ 2
And when calculating the numerator and denominator in our fraction above, we get .326 as a fraction in the simplest form possible:
.326 =
163
500
The scale factor from Dad's mug to Mom's mug is
(leave answer as a fraction)
HELPPP IM STUCK ON THIS
Answer:
10-10
Step-by-step explanation:
Which is the better buy? 16 cards for $12.20 OR 14 cards for $10.90
Answer:
The better buy is 16 cards for $12.20 because
Step-by-step explanation:
You need to find the individual price for each card in the packet. So first lets do 16 cards for $12.20, you divide $12.20 by 16 to get the price of one card. 12.2/16=0.7625, or about $0.76. Next we do $10.90 divided by 14, 10.9/14=0.7785, or about $0.78, which means 16 cards for $12.20 is the better buy!
Today's cafeteria specials at a high school in Westford are a deluxe turkey sandwich and a chef salad. During early lunch, the cafeteria sold 13 turkey sandwiches and 69 chef salads, for a total of $151. During the late lunch, 61 turkey sandwiches and 41 chef salads were sold, for a total of $143. How much does each item cost?
Answer:
chef salads = $2
turkey sandwiches = $1
Step-by-step explanation:
two equations can be derived from the question
13t + 69c = 151 eqn 1
61t + 41c = 143 eqn 2
t = turkey sandwiches
c = chef salads
multiply equation 1 by 61 and equation 2 by 13
793t + 4209c = 9211 eqn 3
793t + 533c = 1859 eqn 4
subtract equation 4 from 3
7352 = 3676c
c =2
substitute for c in equation 1
13t + 69(2) = 151
13t + 138 = 151
13t = 151 - 138
13t = 13
t = 1