Answer:
7.5
Step-by-step explanation:
Simplify the following surd expressions.
a) 5 square root of 5 - 2 square root of 5
b) 8 square root of 7 + 3 square root of 7
Answer:
A=3√5
B=11√7
Step-by-step explanation:
5√5-2√5
5-2√5
3√5
B) 8√7+3√7
8+3√7
11√7
HELP
Which of the c-values are solutions to both of the following inequalities?
1< and 2 < 13
Choose all answers that apply:
2=0
= 2
2= 14
Answer:B.x = 2
because 1 < x < 13 => x ≠ {0;14}
Step-by-step explanation:
3 Elena and Jada are 32 miles apart on a path when they start
moving toward each other, Elena runs at a constant speed of 6
miles per hour, and lada walks at a constant speed of 2 miles per
hour, How long does it take until Elena and Jada meet? Complete
the table to show your reasoning,
(table: 8 points total-
2 points
for each section)
Elapsed Time
Distance Apart
(hours)
(miles)
0
32
1
24
2
8 을
Hours it takes Elena and Jada to meet: (2 points)
Answer:
The hours it takes Elena to meet Jada = 4 hours
Step-by-step explanation:
The distance between Elena and Jada = 32 miles
The speed with which Elena runs = 6 miles per hour
The speed with which Jada walks = 2 miles per hour
Let t, represent the time it takes until Elena and Jada meets, we have;
Distance = Speed × Time
The total distance covered by both Elena and Jada before they meet = The distance between them = 32 miles
The distance covered by Elena before meeting Jada = Elena's speed × The time that elapsed for them to meet
∴ The distance covered by Elena before meeting Jada = 6 mph × t
The distance covered by Jada before meeting Elena = Jada's speed × The time that elapsed for them to meet
∴ The distance covered by Jada before meeting Elena = 2 mph × t
The total distance covered by both Elena and Jada before they meet = The distance covered by Elena before meeting Jada + The distance covered by Jada before meeting Elena = 32 miles
∴ The total distance covered by both Elena and Jada before they meet = 6 mph × t + 2 mph × t = 32 miles
t × (6 mph + 2 mph) = 32 miles
t × 8 mph = t × 8 miles/hour = 32 miles
t = 32 miles/(8 miles/hour) = 4 hours
The time it takes until Elena and Jada meets = t = 4 hours
Why is this action surprising. HELP PLEASE
Answer:
The first one sounds suprising but what is the action?
Answer:
1st option
Step-by-step explanation:
how do you solve negative exponents?
Answer:
Step-by-step explanation:
Negative Exponent Rule:
, this says that negative exponents in the numerator get moved to the denominator and become positive exponents. Negative exponents in the denominator get moved to the numerator and become positive exponents.
Sydney is 5 feet and 1 inch tall. What would her height be in centimeters? (1 foot = 12 inches, 1 inch = 2.54 centimeters) 24.015 centimeters 62.54 centimeters 154.94 centimeters 155.448 centimeters
Answer:
154.94 cm so pick the third answer.
Step-by-step explanation:
5*12+1=61 total inches.
61*2.54=154.94 cm
Answer:
Answer:
154.94 cm so pick the third answer.
Step-by-step explanation:
5*12+1=61 total inches.
61*2.54=154.94 cm
Step-by-step explanation:
Drag the numbers below to put them in order from least to greatest:
-19 -12 -13 9 -4 -1
Please answer all ASAP (no explanation needed), extra points and will mark brainliest (don’t comment “idk” it’s not helpful :(, u will be reported)
1. After buying some bottle caps for $81.74, Peter has $6.74 left. How much money did Peter have to begin with?
2. Henry has $97.95 and Marilyn has $74.71. How much more does Henry have than Marilyn?
3. Helen has $84.51 and Joseph has $17.93. How much money do they have together?
4. Emily has $27.09 and David has $6.17. How much more does Emily have than David?
5. Cynthia has $74.45 and Amy has $38.44. How much more does Cynthia have than Amy?
6. After buying some Skittles for $71.18, Irene has $17.36 left. How much money did Irene have to begin with?
7. Steven has $98.25 and Joe has $4.97. How much money do they have together?
8. Ralph starts with $74.53 and spends $4.97 on candies. How much money does Ralph have left?
9. Christopher has $26.34 and Beverly has $4.15. How much money do they have together?
10. Eugene gives $2.89 to Sarah. If Eugene started with $56.03, how much money does he have left?
11. Keith has $56.49 and Theresa has $3.43. How much money do they have together?
12. Peter gives $20.85 to Nancy. If Peter started with $84.26, how much money does he have left?
13. Bruce has $67.72 and Charles has $29.62. How much more does Bruce have than Charles?
14. Sandra gives $9.13 to Stephen. If Sandra started with $11.66, how much money does she have left?
15. After buying some marbles for $93.52, Donald has $6.35 left. How much money did Donald have to begin with?
What the answer to this
Step-by-step explanation:
b + 16 = 20
b = 20 - 16
b = 4%
i am sorry if this is wrong :/
PLEASE HELP HELP ME HELP ME HELP ME ITS MATH EZ STUFF
Answer:
Bruh your in high school yo know this stuff just make everything a decimal to get your answer. Lol you really forgot this?
Step-by-step explanation:
Answer:
-7/2 ,-2/8, 0.7, 2/3, 3/4
Step-by-step explanation:
pls look at my question to pay it back!!
Given: KM bisects JKL
Prove: m MKL= 1/2m JKL
please explain
Answer:
Can I have a picture?
Step-by-step explanation:
Put it DB and I'll gladly answer!
i am in need of assistance
Crystal bought b boxes of cookies to bring to a party. Each box contains 18 cookies. She decides to keep two boxes for herself. She brings 90 cookies to the party. Which equation can be used to find the number of b boxes Crystal bought?
A) 2b − 18 = 90
B) 18b − 2 = 90
C) 18b − 36 = 90
D) 36 − 18b = 90
Answer:b
Step-by-step explanation:
she took 2 boxes and there is 18 per box 18 times b = 90
f(x) = 2x, find the ordered pair when x = 1. O (1,2) 0 (4,1) (2,1) O (1,4)
Answer:
The ordered pair is (1, 2) ⇒ A
Step-by-step explanation:
In the function f(x) = y
x is the domain of the functiony is the range of the functionThe domain is all the x-coordinates of the points lie on the graph of the functionThe range is all the y-coordinates of the points lie on the graph of the functionThat means any ordered pair (x, y) satisfy the function f(x) = y, lies on the graph of the function
∵ f(x) = 2x
→ That means y = 2x
∵ x = 1
→ Substitute the value of x in the function above
∴ f(1) = 2(1)
∴ f(1) = 2
→ That means at x = 1, y = 2
∴ The ordered pair is (1, 2)
.After traveling for 6.0 seconds, a runner reaches a speed of 10 m/s. What is the runner’s acceleration?
Answer:
1.67 m/s/s.
Step-by-step explanation:
Acceleration = increase of velocity/time
= 10/6
= 1.67 m/s/s.
A family paid $18,000 as a down payment for a home. If this only represents 12% of the price of the home, find the full price of the home.
Answer:
$150,000 (pls mark brainliest if possible)
Step-by-step explanation:
12% = $18,000
1% = $18,000/12 = $1,500
100% = $150,000
Answer:
20160
Step-by-step explanation:
If I am correct give me brainliest :)
12% of 18000 is 2160 and 18000+2160=20160
(-12,14) and (6,-1) write the linear equation in slope-intercept form that passes through the given points. PLEASE HELP ASAP THANK YOU!!!
The equation of the line written in slope intercept form is 0.8333x + 24
From the question given :
x1 = - 12 ; y1 = 14 ; x2 = 6 ; y2 = - 1General form of a slope intercept equation :
y = bx + cb = slope = (y2 - y1) / (x2 - x1)
Slope = (-1 - 14) / (6 - (-12)) = - 15 / 18 = 0.8333
The intercept, c can be obtained thus :
14 = 0.8333(-12) + c
14 = - 10 + c
14 + 10 = c
c = 24
Therefore, the equation can expressed thus y = 0.8333x + 24
Learn more : https://brainly.com/question/18405415
what is 6+7??????????????
Answer:
12
Step-by-step explanation:
Answer:
12
Step-by-step explanation:
c hj utschu85rx bcvb
HELPPPPP PLZZZ ITS TIMEDDD
Solve for the unknown length.
Answer:
37.5 units
Step-by-step explanation:
I assume that there is condition: BC║DE . If so, then ΔABC ~ ΔADE ⇒ that corresponding sides are proportional.
[tex]\frac{BC}{DE}[/tex] = [tex]\frac{AC}{AE}[/tex]
AC = 30 + 20 = 50
[tex]\frac{x}{15}[/tex] = [tex]\frac{50}{20}[/tex] ⇒ x = [tex]\frac{15*50}{20}[/tex] = 37.5 units
The ratio of boys to girls in 6th grade is 2:3, if there were 65 students in the class, how many girls are there? How many boys are there?
Answer:
26 boys and 39 girls
Step-by-step explanation:
if you were to divide 65 by 5 then you would get 13. all you have to do is add 13 + 13 and you would get the number of boys. for the girls you add 13 + 13 + 13.
Here are the numbers of children in 12 elementary school classes.
20, 16, 19, 19, 17, 16, 20, 16, 18, 18, 18, 19
Find the modes of this data set.
If there is more than one mode, write them separated by commas.
If there is no mode, click on "No mode."
Answer:
18, 19(which has two) 20(has two)
Step-by-step explanation:
Just find the ones that appear more than one time.
Answer:
18
Step-by-step explanation:
Re-arrange
16 16,16,17,18,||18,18||,19,19,19,20,20
Find the middle number
i.e ( 18+18) /2
HELP!!!!! I will gove brainliest
Answer:
what do u need help on?
Step-by-step explanation:
i don't know what u need help with
The point (3, ) lies on the graph representing a proportional relationship. Which of the following points also lie on the same graph? Select all that apply. O A. (1,0.4) B. (1.5, 0) oc. (1, 3) OD. (4, 5) E. (15,6). PLEASE HELLPPPPP
Answer:
A)
Step-by-step explanation:
i got iititititiittiitiitititititititt
Please answer correctly !!!!!!!!!!!!!!!! Will mark brainliest !!!!!!!!!!!!!!!!!!!!
Answer: 100°
Step-by-step explanation: LKO and GKO equal 180°. 180 (total of the supplementary angles) - 80° (LKO) = 100°
A student has some $1 and $5 bills in his wallet. he has a total of 15 bills that are worth $51. How much of each type of bill does he have?
Answer:
# of 5 dollar bills: 9
# of 1 dollar bills: 6
Step-by-step explanation:
9•5 = 45
1•6 = 6
To Check: 45 + 6=51
what is the slope of a line whose equation is 2x-2y=20
Answer:
The slope is 1.
Step-by-step explanation:
A buffet offers ranch or caesar dressing. The ratio of ranch dressing used to caesar dressing used is 6 : 1. If the buffet uses 24 cases of ranch dressing, how many cases of caesar do they use?
Answer: They used 4 cases of caesar .
Step-by-step explanation:
Given: The ratio of ranch dressing used to Caesar dressing used is 6 : 1.
Let number of ranch dressing = 6x
Number of Caesar dressing = x
As per given, [tex]6x=24[/tex]
[tex]\Rightarrow\ x=\dfrac{24}{6}=4[/tex], which is the number of caser cases.
Hence, they used 4 cases of caesar .
I Need help plz
i'm dumb
Use any method to multiply (–14ab)(a + 3b – 4c).
Question 2 options:
A)
–14a2b – 42ab2 + 56c2
B)
14a2b + 42ab2 + 56abc
C)
–14a2b – 42ab2 + 56abc
D)
–14a2b – 42a2b2 + 56c
Answer:
-14 a^2 b - 42 a b^2 + 56 a b c C. is the answer
Step-by-step explanation:
Expand the following:
-14 a b (a + 3 b - 4 c)
Hint: | Distribute -14 a b over a + 3 b - 4 c.
-14 a b (a + 3 b - 4 c) = -14 a b a - 14 a b×3 b - 14 a b (-4 c):
-14 a b a - 14×3 a b b - 14 (-4) a b c
Hint: | Combine products of like terms.
-14 a b a = -14 a^2 b:
-14 a^2 b - 14×3 a b b - 14 (-4) a b c
Hint: | Combine products of like terms.
-14 a b×3 b = -14 a b^2×3:
-14 a^2 b + -14×3 a b^2 - 14 (-4) a b c
Hint: | Multiply -14 and 3 together.
-14×3 = -42:
-14 a^2 b + -42 a b^2 - 14 (-4) a b c
Hint: | Multiply -14 and -4 together.
-14 (-4) = 56:
Answer: -14 a^2 b - 42 a b^2 + 56 a b c
In a quadrilateral ABCD, AO and BO are bisectors of angle A and angle B respectively
meeting at O. Prove that
angle AOB = half of [angle C+ angle D]
Answer: ABCD is a quadrilateral
To prove : ∠AOB=
2
1
(∠C+∠D)
AO and BO is bisector of A and B
∠1=∠2∠3=∠4...(1)
∠A+∠B+∠C+∠D=360
(Angle sum property)
2
1
(∠A+∠B+∠C+∠D)=180...(2)
In △AOB
∠1+∠3+∠5=
2
1
(∠A+∠B+∠C+∠D)
∠1+∠3+∠5=∠1+∠3+
2
1
(∠C+∠D)
∠AOB=
2
1
(∠C+∠D)
Explanation: In a quadrilateral ABCD. AO and BO are bisectors of angle A and angle B respectively. Prove that ∠AOB=
2
1
{∠C+∠D}.
7 + y = 5(2y – 1) + 3y
Answer:
y = 1
Step-by-step explanation:
Given
7 + y = 5(2y - 1) + 3y ← distribute and simplify right side
7 + y = 10y - 5 + 3y
7 + y = 13y - 5 ( subtract y from both sides )
7 = 12y - 5 ( add 5 to both sides )
12 = 12y ( divide both sides by 12 )
1 = y