Answer:
..........................
Answer:
Step-by-step explanation:
square root of 9 multiplied by square root of 180
Answer:
18√5
Step-by-step explanation:
√9×√180
from √9 we get 3 cause 3² is 9.
from 180 we get 6√5 because √36×5 is √180.
we took 36 out because it gives us a whole number if we square root it.
So √36×5 is 6√5 , because the square root of 36 is 6
then we multiply 3 and 6√5.
3×6 is 18 so we put 18 and put the √5 behind it.
.
What is (4x2-9X+1) -(5x2-x-7) written in standard form?
Answer:
(9-9x) - (3-x)
Step-by-step explanation:
(4x2 -9x +1) - (5x2 -x -7)
4x2+1= 9. 5x2-7= 3
(9-9x) - ( 3-x)
Derek has $54 to spend for Christmas presents. He wants to spend an equal amount of his money on his Mom, Dad, and 2 sisters. How much can he spend on each family member? (Do it in Long division pls)
FAST
Work out using calculator
a) 122
b) 142
c) 62
Find the square root of
a) 121
b) 900
c) 729
Answer:
Find square root
a 11×11
B 30×30
C 27×27
A watch was on sale for 70% off. The sale price is $60. What was the original price?
Answer:
78 dollars
Step-by-step explanation:
Help show work please
Answer:
8x squared
Step-by-step explanation:
all you do is multiply the 4 and 2 to get the 8 and the x's multiply together causing it to square it making it 8x squared
Help ill mark u brainliest
Answer:
m∠ONB = 81°
Step-by-step explanation:
If angle MNJ and angle ONB are congruent and MNJ is 81 degrees and OJ is a straight line then ONB should also be 81 degrees in which the other side is 99 degrees.
Which expressions have a value of 49 when w = 4? Choose the correct answers and show your work.
A) 3w2+ 25
B) 7(w2- 9)
C) w3/8+ 41
Answer:
Step-by-step explanation:
Anyone able to help ?
Answer:
Step-by-step explanation:
Infinity solutions
Can yall find EB? Round the the nearest hundred. AD=8.98, AB=6.47. ABCD is a rectangle
Answer:
5.53408980773 or 5.534
Step-by-step explanation:
Let's take AD as a, AB as b and DB as c
a2+b2 =c2
(8.98)2 + (6.47) 2 =c2
80.6404 + 41.8609 =c2
The number 2 is square . take it like square
122.5049 =c2
[tex] \sqrt{c \: \: } = \sqrt{122.5049 } [/tex]
C=11.0681796155
this valse is DB but the question say EB so dividend by 2 because rectangle diagonal are equal
So EB =11.0681796155/2
EB =5.5340890773
please help find them
1 AB
2 BC
Answer:
AB ≈ 15.7 cm, BC ≈ 18.7 cm
Step-by-step explanation:
(1)
Using the Cosine rule in Δ ABD
AB² = 12.4² + 16.5² - (2 × 12.4 × 16.5 × cos64° )
= 153.76 + 272.25 - (409.2 cos64° )
= 426.01 - 179.38
= 246.63 ( take the square root of both sides )
AB = [tex]\sqrt{246.63}[/tex] ≈ 15.7 cm ( to 1 dec. place )
(2)
Calculate ∠ BCD in Δ BCD
∠ BCD = 180° - (53 + 95)° ← angle sum in triangle
∠ BCD = 180° - 148° = 32°
Using the Sine rule in Δ BCD
[tex]\frac{BC}{sin53}[/tex] = [tex]\frac{BD}{sin32}[/tex] = [tex]\frac{12.4}{sin32}[/tex] ( cross- multiply )
BC × sin32° = 12.4 × sin53° ( divide both sides by sin32° )
BC = [tex]\frac{12.4sin53}{sin32}[/tex] ≈ 18.7 cm ( to 1 dec. place )
7(m+5) = 21
What is it?
Answer:
m = -2
Step-by-step explanation:
Look at the attached image. First, we divide both sides by 7 to get m + 5 = 3. Now, we subtract 5 from both sides to get m = -2. Now, we substitute m for -2. As we can see, it checks out.
The solution of expression is,
m = - 2
We have to give that,
An expression to solve,
7 (m + 5) = 21
Now, simplify the expression as,
7 (m + 5) = 21
Divide both sides by 7,
m + 5 = 21 / 7
m + 5 = 3
Subtract 5 both side,
m = 3 - 5
m = - 2
So, The solution is, m = - 2
Learn more about the equation visit:
brainly.com/question/28871326
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Lucas has a goal to practice his violin for 300 minutes per week. How many more minutes does Lucas needs to practice in order to meet his goal ? On Saturday he practice for 45 minutes On Sunday he practice for 50 minutes
Answer:
205 minutes
Step-by-step explanation:
Step one:
given data
We are told that Luca's goal is to practice violin for 300 minutes in a week
He has practiced 45 minutes and 50 minutes for Saturday and Sunday already
that is in all, 45+50= 95minutes
Required
The remaining minutes of practice
Step two:
the deficit in practice is
300-95= 205 minutes
What is the area of the triangle?
7
5
4
Hayden had 2 1/2 gallons of water in his watering can. The seed packet said to use 1/4 of a gallon for peppers and 5/8 of a gallon for tomatoes. Hayden then used some of the water for lettuce. If Hayden had 3/4 of gallons of water left, how much water did he use for lettuce?
Answer:
he used 3\4 im guessing
Step-by-step explanation:
Answer:
Around 7/8 of a gallon
Step-by-step explanation:
The measures of the angles of a triangle are shown in the figure below. Solve for x.
(5x-3)°
(x+9)°
Answer:
14
Step-by-step explanation:
5x-3+ x+9 + 90= 180
6x+ 96=180
6x=180-96
6x=84
x=84/6
x=14
Зу – х = -5
-7х + 4 = –18
Solve each system of equation using elimination
Answer:
(1)xy=-5-3
-8ans
Step-by-step explanation:
(2) -3x =-18
-15ans
Jim has $50 to spend at an office supply store. He wants to buy $1.69 per pen and S5
each note pad. Jim buys pens and a note pad. Write an equation
this dosent make sense
Step-by-step explanation:
Find the sum of the squares of 3, 2, 1, and -1
Answer:
15
Step-by-step explanation:
3 x 3=9
2 x 2=4
1x1=1
-1x-1=1
9+4+1+1=15
Answer:
15
Step-by-step explanation:
The square of 3 is 3 times 3, so 9.
2 times 2 is 4.
1 times 1 is 1.
-1 times -1 is 1, because the negative cancels out.
So, it's 9 plus 4 plus 1 plus 1, so the answer is 15.
¿Qué es una semirrecta numérica?
Answer:
La respuesta está abajo
Step-by-step explanation:
Un rayo numérico es una línea con un extremo. Un rayo comienza en un punto dado y se va en una dirección determinada para siempre, hasta el infinito. El punto donde comienza el rayo se llama el punto final.
por favor marca me brainliest con la corona
the price of a toy usually costing £50 is increased to £65.
Answer:
I am assuming you want the percentage increase in the price.
Step-by-step explanation:
The percentage increase is ( 15/50) * 100
= 15 * 2
= 30%.
Help I will mark brainliestttt
Answer:
c
Step-by-step explanation:
its c
if you increase an amount by 3 percent what is the single multiplyer
Answer:
1.03% is the answer
Step-by-step explanation:
PLS HEEELP!! I need this answerd as quick as possible
Answer:
i think its the 2nd one
Step-by-step explanation:
Answer:
What is the file? I don't know what the file is because they dont work for me.
Step-by-step explanation:
Which value is not equivalent 0.37 0.370 37/100
2.5×10^3 times what number is equal to 5×10^6?
Answer:
2.5x10^3= 2,500
5x10^6= 5,000,000
Step-by-step explanation:
Here is a great trick that I always keep in mind whenever you are squaring 10 you add that many zeros for example.
10^4= 10000 (there are 4 zeros).
write the equation of a line that has a m= -5 and passes through the point (-1,4)
write a paragraph describing the steps taken to find the linear equation and include the answer the the question in your response.
at least 6 sentences plz
Answer:
We have a slope and a point, this way, we do not need to find the slope using two points. We can find the line using the Slope Form to turn it into Slope-Intercept Form, also known as "y = mx + b". We can use the Slope Form which is "y - y1 = m(x - x1)". A coordinate is "(x,y)", so that means, "(-1,4)" means that x = -1 and y = 4. We can substitute y1 for 4 and x1 for -1, and m for -5 since m is the slope. Plugging that information into the Slope Form Formula we get "y - 4 = -5(x - (-1))". We know that a negative with a negative turn positive, so we can use this information to change the formula to "y - 4 = -5(x + 1)". Now we distribute and simplify, these steps are shown below.
y - 4 = -5(x + 1)
y - 4 = -5x -5
y - 4 + 4 = -5x - 5 + 4
y = -5x - 1
Now that we have simplified it, we can see that the slope is -5 and the -1 is the y-intercept. To check this is a linear equation is to graph it, or substitute three x-coordinate or y-coordinates and draw a line. In conclusion, the equations is y = -5x - 1.
Step-by-step explanation:
A forest covers 68,000 acres. A survey finds that 0.8% of the forest is old-growth trees. How many acres of old-growth trees are there?
Answer:
544 acres
Step-by-step explanation:
There is 100% in a whole.
1% is 1/100th of the whole, or 0.01 of it. We get this because 1/100 = 1/100 = 0.01
Similarly, 0.8/100 = 0.008. We then multiply the decimal by the total to get
(0.008) ( 68000) = 544 acres
I need help I don’t get it
You need to show the question to get the answer. All you can see is the lines...
State the slope. Interpret the slope. What foes it mean in the context of this problem
Answer:
Step-by-step explanation:
SLOPE IS M