Step-by-step explanation:
Simplify:
[tex]\sqrt{98} = \sqrt{49*2} = \sqrt{7^2*2} = 7\sqrt{2}[/tex][tex]\sqrt{16b^5} = \sqrt{4^2(b^2)^2b} = 4b^2\sqrt{b}[/tex][tex]3\sqrt{5mx^4} \sqrt{1/5m^3} = 3\sqrt{5*1/5*m^4x^4} = 3\sqrt{(m^2)^2(x^2)^2} = 3m^2x^2[/tex][tex]\sqrt{26x^2} = x\sqrt{26}[/tex]Answer:
[tex]→ \sqrt{98} = \sqrt{7 \times 7 \times2} = 7 \sqrt{2}✓ [/tex]
[tex]→ \sqrt{ 16{b}^{5} }= \sqrt{4 \times 4 \times {b}^{5} } = 4 {b}^{ \frac{5}{2} } ✓[/tex]
[tex]→3 \sqrt{5 mx^{4} } \sqrt{ \frac{1}{5} {m}^{3}} = 3 \sqrt{5 \times \frac{1}{5} {m}^{4} {x}^{4} } = 3 {m}^{2} {x}^{2} ✓[/tex]
[tex] →\sqrt{26 {x}^{2} } = \sqrt{26} x✓[/tex]
what expression is equivalent to −24x+72?
Answer:
answer:70+2=72 lixtoo
what is the solution of the system of equations below?
Answer:
the answer is B (2,1)
Step-by-step explanation:
Given the simultaneous equation
[tex]2x+3y=7 .....1\\x+y=3 ..........2\\[/tex]
Using substitution method
from equation 2 :
[tex]x=3-y ....3[/tex]
Substitute equation 3 into 1:
[tex]2(3-y)+3y=7[/tex]
Open the bracket
[tex]2(3)-2y+3y=7\\6-2y+3y=7\\6+y=7\\y=7-6\\y=1[/tex]
Substitute y=1 into x=3-y
[tex]x=3-1\\x=2[/tex]
Hence the solution to the equation is (2,1)
PLEASE MARK ME AS BRAINLIEST
The distance of the moon to the Earth is 384,400 km.
The speed of light is 2.998 x 108 m/s.
Work out how long it will take light to travel from the moon to the Earth.
Include suitable units.
Answer: 1.3 seconds
Step-by-step explanation:
Given: Distance of the moon to the Earth = 384,400 km = 384400 x 1000 meters = 384400000 meters. [1 km = 1000 m]
Speed of light =[tex]2.998 \times 10^8[/tex] m/s = 299800000 m/s
Formula: [tex]\text{Time}=\dfrac{\text{Distance}}{\text{Speed}}[/tex]
Let t be the time taken by the light to travel from the moon to the Earth.
[tex]t=\dfrac{384400000}{299800000}\approx1.3\text{ seconds}[/tex]
Hence, it will take approximately 1.3 seconds for the light to travel from the moon to the Earth.
Mark borrowed $125 from his dad to pay some bills. If he has already paid back $30, how much does he still owe?
*inequalities*
Answer:
Mark borrowed> (Subtracting) 125 dollars, so he will have negative 125 because he took it away. He gives back> (Addition) 30 dollars.
-125+30= -95. So, he owes 95 dollars.
(Easy way)
125-30= 95 dollars.I hope this helped :))
Can you guys graph y= 2/3x -4 ?
Hope this graph helps!
Which of these situations is represented by 24 divided by 6
Answer:
B. got the perfect situation
Step-by-step explanation:
here
24flowers are distributed in 6 vase equally
that mean
[tex] \frac{24}{6} [/tex]
this may help you (:
help me please and thank you
Answer:
the answer is 7
Step-by-step explanation:
Ricky has sat his summer exams.
His scores are below.
Change his scores into percentages.
Give each answer to 1 decimal place.
Maths: 17 out of 22
English: 19 out of 30
Science: 51 out of 60
French: 11 out of 12
German: 10 out of 14
Music: 19 out of 42
Geography: 19 out of 28
History: 30 out of 38
Welsh: 65 out of 70
List Ricky's top 3 subjects
Answer:
cuz i am batman hahahhaahhahah
Step-by-step explanation:
jknkkbjnnjnnbjnbknnBroccoli cost $3.14 a pound at the market.
If Mary bought 2.5 pounds, what was the cost?
A
$1.26
B
$5.64
$7.90
$7.85
7.85
explanation
you multiply the two numbers together
Answer:
$7.85
Step-by-step explanation:
To solve this problem, we can use the cancelling of units.
cost = $3.14/1 lb * 2.5 lb
The pounds cancel out leaving dollars so you get cost = $3.14 * 2.5
so cost = $7.85.
2f - 4e + 4e = 2f true or false
Answer:
True.Step-by-step explanation:
Since 4e cancels out itself, the answer remains 2f.
*Note: I am not entirely sure this is correct, sorry if it isn't *
An economy package of cups has 460 green cups. If the green cups are 20% of the total package, how many cups are in the package?
Please help me I’m going to get beat with a broom please I’m begging
Answer:
A. 3 dimes and 1 Penny
Beat your parents with a broom instead!
-3.75q -5q = 26.25 please give me a correct answer!
Answer:
q= -3
Step-by-step explanation:
9. Angeline bought s yards of satin fabric priced at $8.09 per yard
and c yards of cotton fabric priced at $3.79 per yard.
a) What expression could you use to determine the total cost of
the fabric?
Answer:
The expression Y = 8.09s + 3.79c can be used to determine the total cost of the fabric.
Step-by-step explanation:
Given that:
Price per yard of satin fabric = $8.09
Yards of satin fabric bought = s
Price per yard of cotton fabric = $3.79
Yards of cotton fabric bought = c
Let,
Y be the total cost.
Y = 8.09s + 3.79c
Hence,
The expression Y = 8.09s + 3.79c can be used to determine the total cost of the fabric.
What does C equal? C/11 = 30/120
Answer:
C=2.75
Step-by-step explanation:
C/11=30/120
30/120=.25
120*.25=30
11*.25=2.75
To solve 8,502 ÷ 7, in what place value should you start dividing?
Help me pleasee. Solve the system by substitution
Answer:
(3, - 2 )
Step-by-step explanation:
Given the 2 equations
4x - 2y = 16 → (1)
y = - 5x + 13 → (2)
Substitute y = - 5x + 13 into (1)
4x - 2(- 5x + 13) = 16 ← distribute and simplify left side
4x + 10x - 26 = 16
14x - 26 = 16 ( add 26 to both sides )
14x = 42 ( divide both sides by 14 )
x = 3
Substitute x = 3 into (2) for corresponding value of y
y = - 5(3) + 13 = - 15 + 13 = - 2
solution is (3, - 2 )
For each hour he babysits, Anderson earns $1 more than half of Carey's hourly rate. Anderson earns $6 per hour.
Which equation can be used to solve for Carey's hourly rate, c?
oc+ 1 = 6
o şc-1= 6
+63
oc-6 = 1
- 6 = 1
The answer is:
2c+1=6
{(-1, 1), (1, 1), (-2, 4), (2, 4)}
Is the relation a function and why?
Step-by-step explanation:
what is the a ? a-(-14)= -18
Answer:
a=-32 if you think that was a good answer pls mark as brainliest
Step-by-step explanation:
a-(-14) is the same as a+14
a+14=-18
a=-32
Can someone please help me with this and make sure it’s correct
anyone able to help out ?
Answer:
The value of x is 1
Step-by-step explanation:
Let us solve the question
∵ Δ PQR ≈ Δ FGH
→ From similarity, then their corresponding sides have an equal ratio
∴ [tex]\frac{PQ}{FG}[/tex] = [tex]\frac{QR}{GH}[/tex] = [tex]\frac{PR}{FH}[/tex]
∵ PQ = 3, QR = x + 3, PR = 2
∵ FG = 6, GH = 6x + 2, FH = 4
→ Substitute them in the ratios above
∴ [tex]\frac{3}{6}[/tex] = [tex]\frac{x+3}{6x+2}[/tex] = [tex]\frac{2}{4}[/tex]
→ By using cross multiplication between the first two ratios
∵ 3 × (6x + 2) = 6 × (x + 3)
∴ 3(6x + 2) = 6(x + 3)
∴ 3(6x) + 3(2) = 6(x) + 6(3)
∴ 18x + 6 = 6x + 18
→ Subtract 6x from both sides
∵ 18x - 6x + 6 = 6x - 6x + 18
∴ 12x + 6 = 18
→ Subtract 6 from both sides
∵ 12x + 6 - 6 = 18 - 6
∴ 12x = 12
→ Divide both sides by 12
∴ x = 1
what is 17 and a half as a whole number
Answer:
Brainiest
Step-by-step explanation:
17 1/2
Help pls-
Bram invested $10,000 in an account that earns simple 5% interest annually.
Question 1: How much interest does the account earn in the first 10 years? (Round to the nearest dollar)
Question 2: How much more would the account earn in interest in the first 10 years if the interest compounded continuously? (Round to the nearest dollar)
Answer:
Answer 1: $6,289
Answer 2: $198
Step-by-step explanation:
1-
a(10)=10,000(1+.05)^10
=16,288.95 =16,288-10,000=$6,289
2-
A(t)=pe^rt=a(10)=10,000e^(.05)(10)=16,487-10,000=6487
6487-6289=$198
Nancy divided her marbles into 7 equal piles. What
fraction of the total marbles would 2 piles be?
the volume of a cylinder is 72 pi cm^3. if the radius is 3cm, what is it the height of the cylinder?
The height of the cylinder is 8cm
The formula for calculating the volume of the cylinder is expressed as;
[tex]V = \pi r^2 h[/tex]
r is the radius
h is the height
Substitute the given parameters into the formula:
[tex]V = \pi r^2 h\\72 \pi = \pi \times 3^2h\\72 = 9h\\h=\frac{72}{9}\\h = 8cm[/tex]
Hence the height of the cylinder is 8cm
Learn more here volumes here: https://brainly.com/question/21067083
Which expression represents “7 more than x”?
7x
7 + x
x – 7
x ÷ 7
Answer:
7+x this is the answer ok
Quinn has solved 20 problems on the math quiz. If this is 80% of the problems on the quiz, how many more problems does he have left to solve
Answer:
5 problems
Step-by-step explanation:
20=%80
10=%40
5=%20
100-80=20
20+5=25
5 problems left
Please help me please please !
Write 7√5 using rational exponents.
Answer:
7*(5)^0,5
Step-by-step explanation:
The value of number 7√5 in form of rational exponents will be 1561/1000.
What is Rational number?A number which can be written in the form of fraction p / q , where q is non zero, are called Rational numbers.
Given that;
The number is,
⇒ 7√5
Now,
Since, The number is,
⇒ 7√5
Solve as;
⇒ 7√5 = 7 × 2.23
= 15.61
= 1561/100
Thus, The value in rational exponents = 1561/1000
Learn more about the rational number visit:
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