Answer:
y=5cm
Step-by-step explanation:
Ycm×3cm×7cm=105cm³
21y=105
divide both sides by 21
y=105/21
y=5cm
What are the values of x, y, and z?
help asap
Answer:
x = 111; y =36; z = 76
Step-by-step explanation:
The sum of the interior angles of a triangle will add up to zero and a line that divides a straight line into to parts will have a sum of angles of 180 degrees. Use this information to add and subtract the angles to find x, y, and z.
Tan
Part A
What is the measure, in degrees, of ZPTR? Enter your answer in the bo
Answer:
[tex] \purple {\bold {m\angle PTR=136\degree}} [/tex]
[tex] \orange {\bold {m\angle PQR=68\degree}}[/tex]
Step-by-step explanation:
PS and RS are tangents to the circle with center T at points P and R. (given)
TP and TR are radii of the given circle.
[tex] \therefore PS\perp TP\: \&\: RS\perp TR[/tex]
(radius is perpendicular to the tangent)
[tex] \therefore m\angle TPQ= m\angle TRS =90\degree [/tex]
In quadrilateral SPTR
[tex] m\angle TPQ+ m\angle TRS+m\angle PSR +m\angle PTR=360\degree [/tex]
[tex] 90\degree+ 90\degree+44\degree +m\angle PTR=360\degree [/tex]
[tex] 224\degree +m\angle PTR=360\degree [/tex]
[tex] m\angle PTR=360\degree - 224\degree[/tex]
[tex] \purple {\bold {m\angle PTR=136\degree}} [/tex]
By inscribed angle theorem:
[tex] m\angle PQR=\frac{1}{2} \times m\angle PTR[/tex]
[tex] m\angle PQR=\frac{1}{2} \times 136\degree[/tex]
[tex] \orange {\bold {m\angle PQR=68\degree}}[/tex]
Solve the system using substitution: {y=5x-21 y=-7x+15
Answer:
code lazar
Step-by-step explanation:
Find the measure of the given angles. Show work!!
Answer:
m∠A = 45⁰
m∠B = 75⁰
Step-by-step explanation:
Given question 4;
m∠A = x + 51
m∠B = 81 + x
m∠C = 60⁰
The value of the missing angles can be determined by the finding the value of x first;
m∠A + m∠B + m∠C = 180⁰ (sum of angles in a triangle)
(x + 51) + (81 + x) + 60⁰ = 180
(x + x) + (51 + 81 + 60) = 180
2x + 192 = 180
2x = 180 - 192
2x = -12
x = -12/2
x = -6
Thus, the values of the angles are calculated as follows;
m∠A = x + 51
= -6 + 51
= 45⁰
m∠B = 81 + x
= 81 - 6
= 75⁰
Pls help I’ve tried everything and nothing is helping me lol. 25 points
Answer: Is this the whole question if not i can edit later and answer once i get it all?
Evaluate the expression for p= -3
64 - 9p
Enter only the simplified numerical value after substituting the
value for the variable and doing the math.
Answer:
The answer is 91.
Step-by-step explanation:
If p = -3, then your equation is 64 + (-9 × -3).
-9 times -3 is 27.
27 + 64 = 91
A business made $1.5 million in sales this year, and estimates a 7% increase in sales for the coming year.
If the company allocates 10% of expected sales for promotional activities, how much would be allocated (set aside) for next year's promotion (advertising)?
Answer:
$160,500
Step-by-step explanation:
First, find the coming years sales
7% of 1,500,000 is 105000
105,000+1,500,00=1,605,000
1,605,000 is the next year's sales and we do that *0.1 to find the advertising.
1,605,000*0.1=160,500
So 160,500 will be set aside for advertising
Hope this helped!
PLEASE help Will brainlist 50 points!!!!!!!!!!!!
Answer:
5/6
4/5
6/7
Step-by-step explanation:
Answer:
6 and 7; 1 and 4; 4 and 5
Step-by-step explanation:
a supplementary angle is when two angles added together equal 180 degrees. In other words, if two angles make a straight line when put together, they are supplementary.
Describe a transformation or series of transformations that demonstrates the congruence between figures A and B.
Answer:
90 clockwise (or counterclockwise) rotation and then a reflection over the axis between the two shape (those two steps go in any order)
Step-by-step explanation:
for this lets mark the innermost point of each shape a (blue or A) and a' (red or B)* and the second point b and b'
here we see that the two shapes are in a position to where they seem reflected over a non-existent third diagonal axis, though this is not the case, we need to bring the shape into a position where it can be transformed to the quadrant of shape B and overlap the shape
so when you have a reflection over a diagonal axis, we can rotate or reflect the shape to a new quadrant, and perform the step thats not the first, so say we made a reflection over the X-axis, the shape is now in the lower half of the graph with shape B, from here we perform our last step wich is to rotate the shape into the quadrant of shape B in a clockwise motion, now a and a' overlap and b and b' overlap, same for c, c',d and d'
(*the ' in this case is called a prime symbol, when used, distinguishes two points or lines on a graph, A' = A prime)
helppppppppppppppppppp please
Answer:
figure it out lol
Step-by-step explanation:
u got oofed
10
Colin invests £1700 into his bank account.
He receives 10% per year simple interest.
How much will Colin have after 3 years?
Give your answer to the nearest penny where appropriate.
Answer:
£510
Step-by-step explanation:
Simple interest = (principal × rate × time) / 100
Principal = £1700
Rate = 10%
Time = 3 years
Simple interest = (principal × rate × time) / 100
= (1700 × 10 × 3) / 100
= 51,000/100
= 510
Simple interest = £510
Solve 2 s 2x + 4 < 10 for x.
0-1x<3
O 1
0-1
O 15x<3
2x+4<10
Subtract 4 from both sides to cancel it out.
2x+4<10
-4 -4
2x<6
Now divide 2 from both sides to cancel that out.
2x<6
/2 /2
x<3
So that's the answer.
---
hope it helps
Multiply and rewrite the system: 16푥−10푦=10 −8푥−6푦=6 solving for elimination
work out the size of angle A
Answer:
The measure of A is 93
Step-by-step explanation:
Here, we want to get the measure of angle A
we can start by getting the measure of angle C
Mathematically, we can use sine rule
It states that the ratio of the length of a side of a triangle and the sine of the angle it faces is constant
So to get C, we have the following;
9/sin 38 = 11/sin C
sin C = 11sin 38/9
sin C = 0.7525
C = sin^-1(0.7525)
C = 48.80
This is approximately 49
To get A,
we know that if we added the measure of interior angles of a triangle, the addition is 180 degrees
Thus, we have it that:
38 + 49 + A = 180
A = 180-38-49
A = 93
Find the volume of the prism.
83 m
7 m
4 m
What is the value of the expression shown?
407 - 16) + (-3)
Answer:
388
Step-by-step explanation:
i looked it up
20 points!!!!
What is the slope of a line that is perpendicular to the line that passes through the points (9,0) and (3,7)?
Answer:
6/7
Step-by-step explanation:
Product of slope of perpendicular line = -1
Slope = [tex]\frac{y_{2}-y_{1}}{x_{2}-x_{1}}\\[/tex]
[tex]= \frac{7-0}{3-9}\\\\=\frac{7}{-6}\\\\=\frac{-7}{6}[/tex]
Slope of the perpendicular line = -1/m = -1 ÷ [tex]\frac{-7}{6}[/tex]
[tex]= -1 * \frac{-6}{7} = \frac{6}{7}[/tex]
Tonya pays $300 each month to rent an office where she earns $25 per hour tutoring students. Which equation represents Tonya’s profit, y, for working
x hours?
Answer:
y = 25x – 300
Step-by-step explanation:hope I helped
I want to help on this
Answer:
Multiply the sides and you will get the answer. And then divide by 180
Step-by-step explanation:
Dyson completed 85% of his field goal attempt last season if he attended 60 field goals how many did he make
Answer:
51 goals
Step-by-step explanation:
Given data
Dyson completed 85% of his field goal attempt
number of attempts = 60
Required
The number of goals
=85/100*60
=0.85*60
=51 goals
Hence he made 51 goals in all
What is the area of this compound shape?
Answer:
139.36
Step-by-step explanation:
first you do 8*8 because that would be the area of the square part
8*8=64
then find the area of the semicircle
first the Radis of it is 4 because 8/2=4
A=3.14R^2/2
3.14*4^2/2
3.14*16/2
50.24/2
25.12
now because there are 3 of the semicircles you do
25.12*3
75.36
then you add the 64 from the square to get your answer
75.36+64
139.36
What is the unit rate of 48 newspapers in 6 piles?
Answer:
[tex] \sf8 \: \frac{newspapers}{plie}\: or\: \text{8 newspapers per pile} [/tex]
Step-by-step explanation:
to understand thisyou need to know about:unit ratelet's solve:according to the question
48newspapers/6piles8 newspapers/plieAnswer:
Solution given:
48 newspaper in 6 pile=48news paper per 6 piles
=48/6=8 news paper per pile
the unit rate of 48 newspapers in 6 piles is 8 news paper per pile
Note: Enter your answer and show all the steps that you use to solve this problem in the space provided.
An elevator on the 10th floor goes down 9 floors. Then it goes up 19 floors, down 3, and finally down 12. What floor does it end up on? Write an equation to show how you found your answer.
Answer: it will be subtract try all things possible
Step-by-step explanation:
Reading the sentence below what keyword tells you that this is proportional. Please help I’m stuck!!
Answer:
Steady
Step-by-step explanation:
I understand how you can get confused on this but steady is your keyword because steady means at a proportional rate and has not drastic changes if graphed on a number line.
Find the circumference of a circle with diameter, d = 9.06m. Give your answer rounded to 2 DP
Pablo and max's follows a flight pattern approximatley modled by the equation h(t)=-8t^2+16t+2 where h(t)is their rocket's height in meters t seconds after launch. How many seconds was their rocket in the air
Answer: 2.11 s
Step-by-step explanation:
Given
Equation of rockets height is given by
[tex]\Rightarrow h(t)=-8t^2+16+2[/tex]
Height will be zero once the rocket lands on the ground
So, we can write
[tex]\Rightarrow h(t)=0\ \text{or}\ -8t^2+16t+2=0\\\Rightarrow 8t^2-16t-2=0\\\\\Rightarrow t=\dfrac{16\pm \sqrt{(-16)^2-4(8)(-2)}}{2\times 8}\\\\\Rightarrow t=\dfrac{16\pm \sqrt{320}}{16}\\\\\text{Neglecting negative value of t}\\\\\Rightarrow t=\dfrac{16+17.888}{16}=2.11\ s[/tex]
The rocket of height h(t) and modeled equation [tex]\rm h(t)=-8t^2+16t+2\\[/tex]
was in the air for 2.1 seconds.
What is a quadratic equation?The given equation is [tex]\rm h(t)=-8t^2+16t+2\\[/tex], where h(t) is the rocket's height in meters t seconds after launch.
In algebra, a quadratic equation is an equation that can be written in standard form as
[tex]\rm ax^{2}+bx+c=0}[/tex]
where x represents variable, and a, b, and c represent coefficient.
The given equation is
h(t) = 0
[tex]\rm h(t)=-8t^2+16t+2\\h(t)=-8t^2+16t+2 = 0\\[/tex][tex]\rm h(t)=-8t^2+16t+2\\[/tex]
The roots will be
[tex]\rm {\displaystyle t={\frac {-b\pm {\sqrt {b^{2}-4ac}}}{2a}}.}[/tex]
[tex]\rm {\displaystyle t={\frac {16\pm {\sqrt {(-16)^{2}-4\times 8\times 2}}}{16}}.}\\\rm {\displaystyle t={\frac {16\pm {\sqrt{320} }}{16}}}\\\rm {\displaystyle t={\frac{16+17.88}{16}\\[/tex]
Here, we have neglected the negative value of t
t = 2.1 seconds
So, the rocket of height h(t) and modeled equation [tex]\rm h(t)=-8t^2+16t+2\\[/tex]
was in the air for 2.1 seconds.
Here learn more about quadratic equations here:
https://brainly.com/question/2263981
Just say yes if equivalent or no if not equivalent
5x and x + 5
Answer:
I am pretty sure there equivalent
Find the value of x.
A 2
B 4.8
C 6
D 6.4
Answer:
D
Step-by-step explanation:
Δ DCA and Δ ABE are similar, thus the ratios of corresponding sides are equal, that is
[tex]\frac{CA}{BE}[/tex] = [tex]\frac{DA}{AE}[/tex] , substitute values
[tex]\frac{18}{10}[/tex] = [tex]\frac{x+8}{8}[/tex] ( cross- multiply )
10(x + 8) = 144 ( divide both sides by 10 )
x + 8 = 14.4 ( subtract 8 from both sides )
x = 6.4 → D
The value of x is the length of BD, so x = 6.So, The correct answer is C. 6.
The value of x is the length of the altitude from vertex B to side AC. We can find this length by using the Pythagorean Theorem on right triangle ABD.
[tex]AB^2 + BD^2 = AD^2\\8^2 + BD^2 = 10^2\\BD^2 = 36\\BD = 6[/tex]
The altitude from vertex B to side AC is equal to the length of BD, so x = 6.
Here is a breakdown of the steps involved in solving for x:
We are given the lengths of sides AB and AC of triangle ABC.
We know that the altitude from vertex B to side AC will be perpendicular to side AC. We can use the Pythagorean Theorem on right triangle ABD to find the length of BD, which is the altitude from vertex B to side AC.
To know more about triangle:
https://brainly.com/question/2773823
#SPJ2
In the triangle shown, find the length of the hypotenuse.
If this question doesn’t get answered I’m gonna be stressed out even more. I don’t know any of the answers to any of these questions.
After Kwan spent $5 of the money he earned for mowing lawns, he had $15 left. Which equation represents how to find the amount Kwan had before spending the money?
Answer:
$20 was how much money he had before he spent any money.
Step-by-step explanation:
So, with any problem like this, all you have to do to figure out the answer is to add how much money is left and how much was spent. So, like this:
Amount left + Amount spent = Original Amount