Answer:
Since you didn't list the statements, I'll just list some true statements.
-------------------------------------
There are 17 students in this class.
Majority of students voted for a hamster.
Snake was the least voted for.
-2b(-7)=11
=============
Answer:
Solution given:
-2b(-7)=11
open bracket
-2b*-7=11
+14b=11
divide both side by 14
14b/14=11/14
b=11/14
Answer:
[tex] - 2b ( - 7) = 11 \\ - 2b \times - 7 = 11 \\ 14b = 11 \\ b = \frac{11}{14} \\ thank \: you[/tex]
The perimeter of a rectangle can be found using the formula P = 4 s .
True or False
Answer:
[tex]{ \underline{ \sf{true}}}[/tex]
Answer:
The perimeter of a rectangle can be calculated by adding both lengths, and both widths
Step-by-step explanation:
V36 What smallest number should be multiplied to 288 in order to make it a perfect cube?
Answer:
6
Step-by-step explanation: We observe that if 288 is multiplied by (2 x 3), then its prime factors will exist in triples. Thus, the required smallest number by which 288 be multiplied to make it a perfect cube i: (2 x 3)=6. 1,331 is a perfect cube.
An arc 28 cm is cut from a circle of radius 15 cm. Find the angle of the sector formed by this arc.
Answer:
[tex]\displaystyle \frac{28}{15}\; \text{radians}[/tex], which is approximately [tex]107^{\circ}[/tex].
Step-by-step explanation:
In a given circle, the angle of a sector is proportional to the length of the corresponding arc:
[tex]\displaystyle \frac{\text{angle of sector $1$}}{\text{angle of sector $2$}} = \frac{\text{length of arc of sector $1$}}{\text{length of arc of sector $2$}}[/tex].
For the circle in this question, [tex]r = 15\; \rm cm[/tex], and the circumference would be:
[tex]2\, \pi \, r = 30\, \pi\; \rm cm[/tex].
The full circle itself is like a sector with an angle of [tex]2\, \pi[/tex], with the arc length equal to the circumference of the circle.
[tex]\displaystyle \frac{\text{angle of sector}}{\text{angle of full circle}} = \frac{\text{length of arc of sector}}{\text{circumference of circle}}[/tex].
[tex]\displaystyle \frac{\text{angle of sector}}{2\,\pi\; \rm rad} = \frac{28\; \rm cm}{30\, \pi\; \rm cm}[/tex].
Rearrange the equation to find the angle of the sector:
[tex]\begin{aligned} & \text{angle of sector} \\ =\; & (2\,\pi\; \rm rad) \cdot \frac{28\; \rm cm}{30\, \pi\; \rm cm} \\ =\; & \frac{28}{15}\; \rm rad\end{aligned}[/tex].
In other words, the angle of this sector would be [tex]\displaystyle \frac{28}{15}\; \rm rad[/tex]. Multiply that measure in radians by [tex]\displaystyle \frac{360^{\circ}}{2\,\pi\; \rm rad}[/tex] to find the value of the angle measured in degrees:
[tex]\begin{aligned} & \frac{28}{15}\; \rm rad \times \frac{360^{\circ}}{2\,\pi\; \rm rad} \approx 107^{\circ}\end{aligned}[/tex].
On the test, when Tom simplified the expression he got 5.8. What mistake did Tom likely make when he simplified the expression?
Answer:
It is likely that Tom did not expand brackets fully or forgot to subtract and add from both sides.
Step-by-step explanation:
the dash unit of length is metre
Answer:
Units of Length
10 millimeters (mm) = 1 centimeter (cm)
10 decimeters = 1 meter (m)
10 decimeters = 1000 millimeters
10 meters = 1 dekameter (dam)
SOLVE FOR X
2x+15=2x-15
[tex]\\ \rm\Rrightarrow 2x+15=2x-15[/tex]
[tex]\\ \rm\Rrightarrow 2x-2x=-15-15[/tex]
[tex]\\ \rm\Rrightarrow 0=-30[/tex]
Hence
[tex]\\ \rm\Rrightarrow x=\infty[/tex]
find the cost of of 1/2 litre if if 6 litres cost £7.20
if 6 litres cost £7.20
then 1/2 of it will cost 'x'(algebraic value)
we form equation
[tex] \frac{ 7.2}{6} \times \frac{1}{2}x[/tex]
which is equal to 0.6
Cost of 1/2 liter is £0.6.
What is unitary method?It is a method where we find the value of a single unit from the value of multiple units and the value of multiple units from the value of a single unit.
According to the question
Cost of 6 liters ⇒ £7.20
Cost of 1/2 liter ⇒ X
According to the unitary method
6X = [tex]7.20\times\frac{1}{2}[/tex]
X = [tex]\frac{7.20}{6}\times\frac{1}{2}[/tex]
X = [tex]\frac{3}{5}[/tex]
X = £0.6
Cost of 1/2 liter is £0.6
Find out more information about unitary method here
https://brainly.com/question/22056199
#SPJ2
(a)
537
Given that -+-+-=0, express a in terms of b and c.
a b c
Ar (9² - s)
Make q the subject of the formula p:
a
(b)
Answer:
Here ia your answer
Hope it helps
Answer:
see explanation
Step-by-step explanation:
(a)
[tex]\frac{5}{a}[/tex] + [tex]\frac{3}{b}[/tex] + [tex]\frac{7}{c}[/tex] = 0 ( multiply through by abc to clear the fractions )
5bc + 3ac + 7ab = 0 ( subtract 5bc from both sides )
3ac + 7ab = - 5bc ( factor a out of each term on the left side )
a(3c + 7b) = - 5bc ← divide both sides by (3c + 7b)
a = - [tex]\frac{5bc}{3c+7b}[/tex]
---------------------------------
(b)
p = [tex]\frac{\sqrt{4r(q^2-s)} }{q}[/tex] ( multiply both sides by q )
pq = [tex]\sqrt{4r(q^2-s)}[/tex] ← square both sides
(pq)² = 4r(q² - s) ← distribute
p²q² = 4rq² - 4rs ← subtract 4rq² from both sides
p²q² - 4rq² = - 4rs ( multiply through by - 1 )
4rq² - p²q² = 4rs ← factor out q² from each term on the left side
q²(4r - p²) = 4rs ← divide both sides by (4r - p²)
q² = [tex]\frac{4rs}{4r-p^2}[/tex] ( take the square root of both sides )
q = ± [tex]\sqrt{\frac{4rs}{4r-p^2} }[/tex]
Find f(3x-2) for f(x)=x-5
Answer:
f(x)=x–5
f (3x–2) = (3x–2) –5
f (3x–2) = 3x–7
I hope I helped you^_^
find the ratio in lowest terms a 1.5m and 75 cm
Which numbers in set A = ( -7,-4, 2, 14, 21,34, 42) are elements of b and c, shown below? Set b= ( even numbers) set c: ( multiples of 7) enter answers from largest to smallest.
Answer:
(14, 42)
Step-by-step explanation:
(-4, 2, 14, 34, 42) are all elements of b, and (-7. 14, 21, 42) are all elements of c. (14, 42) are the only elements that are in both sets
Which is equivalent to 64^1/4?
2^4√4
4
16
16^4√4
Answer:
Step-by-step explanation:
[tex]64^1/4\\\\=\dfrac{64^{1}}{4} \\\\=\dfrac{64}{4} \\\\=16\\\\Answer\ C[/tex]
Barry is measuring the length of his pencils. The red pencil is 4.32 inches long, the blue pencil is 6.1 inches long, and the green pencil is 2.27 inches long. What is the sum of the lengths of the pencils? 7.20 inches 12.61 inches 12.69 inches
I NEED ANWSER FAST! AND QUICK! PLEASE HELP! I give 38 points who ever answer!! PLEASE!!!
Answer: [tex]\boxed {12.69 inches}[/tex]
Step-by-step explanation:
Given information
Red pencil = 4.32 inches
Blue pencil = 6.1 inches
Green pencil = 2.27 inches
Expression deducted from the question
Total length = Red pencil + Blue pencil + Green pencil
Substitute values into the expression
Total length = (4.32) + (6.1) + (2.27)
Simplify by addition
Total length = 10.42 + 2.27
Total length = 12.69 inches
Hope this helps!! :)
Please let me know if you have any questions
The sum of the length of the pencils is 12.69 inches
To Obtain the sum of the length of the pencils, we use the addition operator on the given lengths :
Red pencil = 4.32 inches Blue pencil = 6.1 inches Green pencil = 2.27 inchesThe sum of the lengths of the pencils :
(4.32 + 6.1 + 2.27) inches = 12.69 inches
Therefore. The total sum of the lengths of the pencils is 12.69 inches
Learn more : https://brainly.com/question/2610134
2 1/6 x 4 1/2= and explain it
Answer:
9 3/4
Step-by-step explanation:
First you would want to multiply the whole number with their denominators and then add the numerator to that. 2*6+1 and 4*2+1 Then you keep the original denominator at the bottom of the fraction.
2*6+1/6 4*2+1/2 ---> 13/6 x 9/2
You would then simplify the crossing numbers 6 and 9. They both can be divided by three.
13/2 x 3/2 = 39/4
Now you would do long division where you divide 39 by 4
4 goes into 39 nine times subtracting 36 from 39.
You then end up with 1 which becomes you numerator, 4 is the new denominator and 9 is the whole number.
The answer of the given mixed numbers 2 1/6 x 4 1/2 is 9 3/4.
What is mixed numbers?A mixed number is a whole number, and a proper fraction represented together. It generally represents a number between any two whole numbers.
You should first multiply the entire number by the denominators of the other numbers, and then add the numerator to that result. 2*6+1 and 4*2+1 The original denominator is then kept at the bottom of the fraction.
(2*6+1)/6 x ( 4*2+1)/2 —-> 13/6 x 9/2
Next, you would streamline the intersection of numbers 6 and 9. They are both divisible by three.
13/2 x 3/2 = 39/4
You would now perform a long division by dividing 39 by 4.
4 multiplies 39 by 9 and subtracts 36 from 39.
In the end 3 becomes the numerator, 4 becomes the new denominator, and 9 is the total.
Therefore, 2 1/6 x 4 1/2 = 9 3/4.
To know more about the mixed numbers, click on the link
https://brainly.com/question/1746829
#SPJ2
What the picture says
Answer:
BCG
Step-by-step explanation:
This is because it is what you see when you look in the front of the shape.
HOPE THIS HELPED
five times the sum of two times a number and 3
Answer:
5×(2x+3)
Step-by-step explanation:
hope this helps:)
PLz help :( i will mark barinliest
which best describes the meaning of the word theorem
A. A conjecture based on inductive reasoning
B. A statement that is accepted as true without proof
C. a statement explaining the meaning of a geometric term
D. A conclusion proved by deductive reasoning
Answer:
Step-by-step explanation:
It's D.
A theorem is true by some sort of mathematical logic.
It is not a definition. Not C
It is not in the end true because of inductive reasoning (a theorem may lend itself to inductive reasoning, but it must be proved.) Not A
It certainly not assumed to be true without proof. Not B
4/9 and 10/3 least common denominator?
Answer:
4/9 and 30/9
Step-by-step explanation:
9, 18, 27, 36
3, 6, 9, 12,
4/9 already has 9 denominator
10/3 × 3/3= 30/9
so now both numbers have common denominators.
4/9 and 30/9
20 = 7x + 2 - 4x
What does x equal
Answer:
x = 6
Step-by-step explanation:
20 = 7x + 2 - 4x
7x + 2 - 4x = 20 (switch the sides)
7x - 4x + 2 = 20 (group the like terms together)
3x + 2 = 20 (add similar numbers, in this case it's the both x's)
-2 -2 (subtract 2 on both sides)
------------------
3x = 18
/3 /3 (divide both sides by 3)
-------------------
x = 6
-6x –(-9 – 4x) = -2(3x – 5)?
Answer:
x = 1/4
Step-by-step explanation:
-6x –(-9 – 4x) = -2(3x – 5)
-6x + 9 + 4x = -6x + 10
-2x + 9 = -6x + 10
-2x + 6x = 10 - 9
4x = 1
x = 1/4
where can i find the answers?
Answer:
I don't know where can you find this question's answer.
Need help ASAP please!! See attached photo
Answer:
Angle ABC = 110 degrees
Step-by-step explanation:
Set angle ABC equal to the two parts and solve for x
17x + 8 = 42 + 12x - 4
17x + 8 = 12x + 38
5x = 30
x = 6
Plug in x to angle ABC and solve
17(6) + 8 = 110
The table below shows Mandy's test scores what is the mean of her test scores
78 89 83 80 84
95 100 86 84 91
A 88 b 87 c 85 d 84
Answer:
B,87
STEPS
78+89+83+80+84+95+100+86+84+91
10
870
10
collection of even numbers is well defined set or not
Answer:
set of even counting number is well-defined
if a≠0 and the sum of x and 1-a is 0, then
Answer:
x+ ( 1– a ) = 0
x= – 1 + a
I hope I helped you^_^
Y'ALL, WOULD A KIND SOUL PLEASE PLEASE HELP ME???!!!!!!!!!!! im running out of points
Complete the two-column proof below. The ‘reasons’ are already given, so only the mathematical ‘statements’ need to be completed.
show how you got your answer so I can see if it makes any sense!!!
1. ∠A and ∠B are complementary
2. ∠A + ∠B = 90° and ∠B + ∠C = 90°
3. ∠A = 90° - ∠B
4. ∠C = 90° - ∠B
5. ∠A ≅ ∠C
Simplify -2/3+1 5/6+(-3/2)
Plsss guys I need ur help
Step-by-step explanation:
[tex] - \frac{2}{3} + 1 \frac{5}{6} + ( - \frac{3}{2} )[/tex]
[tex] = 1 \frac{5}{6} - \frac{2}{3} - \frac{3}{2} [/tex]
[tex] = \frac{11}{6} - (\frac{2}{3} + \frac{3}{2} )[/tex]
[tex] = \frac{11}{6} - ( \frac{4 + 9}{6} )[/tex]
[tex] = \frac{11}{6} - \frac{13}{6} [/tex]
[tex] = \frac{11 - 13}{6} [/tex]
[tex] = \frac{ - 2}{6} [/tex]
After simplifying,
[tex] = \frac{ - 1}{3} (ans)[/tex]
help pls ASAP im doing this for my sister.
10 points if you check that the work is correct or wrong!1
Also i need answers for the bottom.
Answer:
1. Amy, Rick, Jeff, Bonnie (Bonnie wins)
2a. You're answer is correct since there is multiple ways to do it
2b. 52212 is greater than 43541 because it is a bigger number
Step-by-step explanation:
I have no idea what I am doing
Answer:
I have no idea either
Step-by-step explanation: