Answer: 32
Step-by-step explanation: since Jiri is 9 years older, you set an equation where x (Pamelia age) + 9. So the equation is 55= x + (x+9). You subtract 9 from both sides, then divide 46 by 2 to find the Pamelia age. To find Jiri’s age, add 9 to 23 (Pamelia age).
what is 1/2 + 2 1/4?
Answer:
2 3/4
Step-by-step explanation:
find the measure of the angle.
O is the centre of the circle.
Determine the value of a°.
Answer:
m<a=41º
Step-by-step explanation:
a triangle has 180º total
180-98=82
since O is the center that makes OQ and OP radii and as such they are equally distanced
this means that the m<a and the measure opposite it are equal
so ÷82 by 2
a=41
Gavin and Jim win some money and share it in the ratio 1:3. Gavin gets £15. How much did Jim get?
Answer:
£7
Step-by-step explanation:
15×203_3[2
w820362
45
In quadrilateral ABCD, AD is congruent to BC, and AD is parallel to BC.
Prove that ABCD is a parallelogram.
The proof for ABCD is a parallelogram is shown below.
What is parallelogram?The opposing sides are equally spaced and parallel.Angles on either side are equal.The following or neighbouring angles are supplemental.All of the angles will be at right angles if any one of them is a right angle.The two diagonals cut across one another.Given:
AD is congruent to BC,
and AD is parallel to BC.
So, if the quadrilateral have opposite sides congruent and parallel.
Such Quadrilateral are parallelogram.
Hence, the given quadrilateral is a parallelogram.
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Donald bought 3 shirts for $45. How many shirts can Donald buy if he has $30? Show your work using mathematics.
Answer:
donald can buy 2
Step-by-step explanation:
price of a shirt = $45÷3
=15
=30÷2=15
Answer:2 shirts
Step-by-step explanation: if you divide 45$ by three you find out each shirt cost 15$ if you add fifteen twice you get 30$ theirfor you used all your money and can not buy another shirt.
A road starts at sea level and climbs steadily, reaching an elevation of 2000 feet after 8 miles, as shown in the diagram.
What is the elevation in feet of the road 5 miles from the starting point?
(a.) 750
(b.) 1000
(c.) 1250
(d.) 1500
9 out of 45 apples are red.the situation is looking for the (part, whole, percent)
PLEASE help me for this math problem
:answer (x+5−4)(x+5+4)(x−4)
how i got it:
(x+5−4)(x−(−
2
2(5+4)
))(x−4)
simplify (4.5 +2.5) · 11 – 162 + [92 – 10.5- (1.5+ 2 - 4)]/.
Answer:
-3
Step-by-step explanation:
what is the decimal equivalent of 17/20
A. 0.085
B. 0.117
C. 0.85
D. 8.5
Answer:
0.85.
Step-by-step explanation:
20)17.00 (0.85
- 160
100
-100
......
guys pls help me!!!!!!!
Answer:
[tex](6r - 3) \degree = 45\degree \\ 6r = 45 + 3 \\ 6r = 48 \\ r = \frac{48}{6} \\ \therefore \: r = 8 \\test \: 6(8) - 3 = 48 - 3 = 45\degree[/tex]
Weight of Male Dogs (Ib.)
The most appropriate measure of center for this
data is the median
4
5
COMPLETE
5
0
2.
8
00
Which statement about the data is true?
6
N
2
8
7
2
8
O The mean is greater than the median.
O The mean is equal to the median.
The mean is less than the median.
8
1
9
on
5
DONE
8|1 means 81
Answer:
65
Step-by-step explanation:
45, 50, 52, 58, 62, 68, 72, 78, 81, 95
62 + 68 = 130/2 = 65
The median is 65
The median of the weight of the male dogs is M = 65 lb
What is Median?The median is the value that's exactly in the middle of a data set when it is ordered. It's a measure of central tendency that separates the lowest 50% from the highest 50% of values. The steps for finding the median differ depending on whether you have an odd or an even number of data points
Arrange the data points from smallest to largest.
If the number of data points is odd, the median is the middle data point in the list.
If the number of data points is even, the median is the average of the two middle data points in the list.
Given data ,
Let the weights of the male dogs be represented as set A
where the value of A is
Set A = { 45, 50, 52, 58, 62, 68, 72, 78, 81, 95 }
On simplifying , we get
The number of terms = 10
So , the median M = ( 62 + 68 ) / 2
The median M = 130/2 = 65 lb
where the mean is C = 66.1 lb
Hence , the median is M = 65 lb
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(-4x2 – 2x – 6) – (-7x2 – 2x – 2)
2
Step-by-step explanation:
:) hope its correct lol
Does the point (13, –5) lie on the line y = 8 – x? Show your workings.
Answer:
well is there a picture ? so i can see if it does or doesnt
Step-by-step explanation:
4. 18 is 80% of what?
A. 20
B. 22.5
C. 14.4
D. 9
Answer:
22.5 (B)
Step-by-step explanation:
Use trig identities to show that sec θ − cos θ = tanθ (sin θ)
Use [tex]\sec\theta = \dfrac{1}{\cos{\theta}}[/tex] to get
[tex]\sec\theta -\cos{\theta}= \dfrac{1}{\cos{\theta}}-\cos(\theta})[/tex]
Then find a common denominator:
[tex]\dfrac{1}{\cos{\theta}}-\cos(\theta}) = \dfrac{1}{\cos{\theta}}-\dfrac{\cos^2\theta}{\cos\theta}[/tex]
But now make that one fraction:
[tex]\dfrac{1}{\cos{\theta}}-\dfrac{\cos^2\theta}{\cos\theta} = \dfrac{1 - \cos^2\theta}{\cos{\theta}}[/tex]
But that's just sin^2 on the top
[tex]\dfrac{1 - \cos^2\theta}{\cos{\theta}} = \dfrac{sin^2\theta}{\cos{\theta}} = \dfrac{sin\theta\cdot sin\theta}{\cos{\theta}}[/tex]
Split that fraction up:
[tex]=\dfrac{ sin\theta}{\cos{\theta}}\cdot sin\theta[/tex]
And tan = sin/cos
[tex]=\tan\theta\cdot sin\theta[/tex]
HElp K 12 test! Will give brainiest PLS HELP!!!!
1. Which product is negative?
a. −6⋅(−7)⋅(−8)⋅0
b. −2⋅(−7)⋅12⋅(4)
c. −3⋅(−2)⋅(−4)⋅(−7)
d. 4⋅(−9)⋅(−3)⋅(−1)
2. Multiply.
−3⋅7
a. −21
b. −11
c. 11
d. 21
3.Multiply.
(−17)⋅(−6)
a. −102
b. −23
c. 23
d. 102
4. What is the product?
−5⋅(−3)⋅(−8)
a. −120
b. −16
c. 16
d. 120
5. What is the product?
4⋅(−9)⋅(−3)⋅(−1)
a. −108
b. −81
c. 81
d. 108
Answer:
1. d 2. a 3. d 4. a 5. a
Step-by-step explanation:
For 1, d is negative because, if there an even number of negatives, the answer will be positive. a. would have been correct, but you multiply that one by 0. 0 is not negative, so the answer has to be d.
2. is -21. You can multiply 3 times seven then make it negative, or simply add -7 together 3 times.
3. is d because the two negatives cancel each other out. Even numbers of negatives cancel each other out. therefore, 17 times 6 is 102.
4. -120 is the answer because there are 3 negatives. That is an odd number, so we know our answer is negative. -5 times -3 is 15, and 15 times -8 is -120.
5. is a because -1 times 4 is -4, then -4 times -9 is 36. 36 times -3 is then -108.
mulitiply: -23x(x+3)
Answer:
[tex] - 23x(x + 3) \\ { - 23x}^{2} - 69x \\ \\ \\ \\ \\ \\ hope \: it \: helps \\ stay \: safe \: healthy \: nd \:and \: happy[/tex]
Answer:
[tex]-23x^{2} -69x[/tex]
Step-by-step explanation:
Using the distributive property:
[tex]-23x(x+3)[/tex]
You will multiply both the x and the 3 inside the parantheses by the -23x outside.
[tex]-23x[/tex] · [tex]x = -23x^{2}[/tex]
Then:
[tex]-23x[/tex] · [tex]3 = -69x[/tex]
If you combine both you will recieve:
[tex]-23x^{2} -69x[/tex]
If you do not know it plz do not answer
Maya drove 440 miles using 16 gallons of gas. At this rate, how many miles would she drive using 14 gallons of gas?
Thanks
385 miles
Step-by-step explanation:
440/16 = x/14
16x = 440 × 14
16x = 6,160
x = 6,160/16
x = 385 miles
Pleaseee help me plz
Answer:
hey there,
hey there,in this question
-7 is multiply by 5 then multiply by-2
-7×5=-35 -35×-2=70i want to inform that when minus is mutiply by minus it become plus
Step-by-step explanation:
hope it help you #BEBRAINLYthe number get when 90 is divided by 30 and its quotient is multiplied by 53?
Answer:
Step-by-step explanation: 90 divided in to 30 is not 53 is is equal to 3
please help me
no random links pls
Answer:
C
Step-by-step explanation:
The first one (0,7) tells you that when x isn't there, the amount of money is 7.
That means that the y intercept is 7.
When x = 1 the total is 15
Money saved = ax + 7
15 = a*1 + 7 Subtract 7
15-7 = a + 7-7
a = 8
The equation is f(x) = 8x + 7
can someone help with this question please
Answer:
3
Step-by-step explanation:
Always include the steps and/or background required to get to the final answer. Let’s help other people understand and solve future problems on their own.
Please help
10x-2-6x=2(2x-1)
Answer:
All real numbers
Step-by-step explanation:
Given: 10x-2-6x=2(2x-1)
Distribute: 10x-2-6x=4x-2
Simplify like terms: 4x-2=4x-2
Subtract 4x to both sides: -2=-2
Add 2 to both sides: 0=0
All real numbers
Point A is (5, 7).
Point B is (x, y).
The midpoint of AB is (17,-4).
What are the coordinates of B?
A. (22,-9)
B.(12,-11)
C. (29.-15)
D. (8.5,-2)
The coordinate of point B is at (29, -15): Option C is correct.
The formula for calculating the midpoint of two points is expressed as:
[tex]M(x, y) = {\frac{x_2+x_1}{2}, \frac{y_2+y_1}{2}}[/tex]
Given the coordinate points
A is (5, 7).
B is (x, y).
M is (17, -4)
Substituting into the formula to get x and y
17 = 5+x/2
5+x = 34
x = 34 - 5
x = 29
Get the value of y. Similarly;
-4 = 7+y/2
-8 = 7+y
y = -8-7
y = -15
Hence the coordinate of point B is at (29, -15)
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1. Obtén la pendiente de las siguientes rectas, grafícalas y determina si las rectas L1 y L2, cuyas ecuaciones son 3x+4y-2=0 y 3x+4y+6=0, son paralelas o no.
Queremos obtener la pendiente de dos lineas dadas, y en base a eso, determinar si son paralelas o no.
Las pendientes son para ambas lineas igual a -3/4, como ambas lineas tienen la misma pendiente y diferente ordenada al origen, podemos concluir que son paralelas.
-----------------------------
Una línea en general se escribe como:
y = a*x + b
Donde a es la pendiente y b es la ordenada al origen.
En este problema se nos dan las líneas:
3*x + 4*y - 2 = 0
3*x + 4*y + 6 = 0
Comencemos por reescribir esas líneas en la forma más general, para hacer esto, debemos aislar y en ambas ecuaciones:
y = (-3/4)*x + 2/4
y = (-3/4) - (6/4)
Aqui podemos ver que ambas pendientes son iguales a -3/4
Al final de la respuesta puedes ver el gráfico de ambas líneas.
Como ambas líneas tienen la misma pendiente, pero distintas ordenadas al origen, podemos concluir que son paralelas.
Esto mismo se puede observar en el gráfico de abajo.
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A cashier has a total of 110 bills, made up of tens and hundreds. The total value of the money is $5780. How much of each kind does he have?
He has ____ tens and ____ hundreds.
Answer:
58 tens and 52 hundreds
Step-by-step explanation:
110 bills total equaling 5780.
58 times 10 = 580 meaning the remaining 52 bills are hundreds
52 times 100 = 5200 add the 580 to get 5780
how many gallons are equivalent to 20 points
Answer:
2.31964e-7
Step-by-step explanation:
Answer:
3 gallons
Step-by-step explanation:
Work out the angle of x 97degrees
Answer:
Answer is 3x
Step-by-step explanation: