Answer:
(3i+5)+(2-6i)
⇒ 3i+5+2-6i
⇒3i-6i+5+2
⇒-3i+7
The simplified form of (3i+5)+(2-6i) will be -3i+7
What is the simplified form of the expression 0.3 (4x - 4y)?
Answer:
1.2x-1.2y
Step-by-step explanation:
The power, P (watts) , of a car engine is proportional to the square of its speed, s ( m / s ) . When s = 30 , P = 1260 . Work out the power when the speed is 25 m / s
Answer:
875 Watts
Step-by-step explanation:
Given that :
P α s²
P = ks²
Where k is the proportionality constant
When ; p = 1260 ; s = 30
1260 = k * 30²
1260 = 900k
k = 1260 / 900
k = 1.4
Value of p ; when s = 25
P = 1.4 * s²
P = 1.4 * 25²
P = 1.4 * 625
P = 875 watt
1/2x+4=9 solve for x.. Help?
Answer:x=10
Step-by-step explanation:
Step 1: Subtract 4 from both sides.
Step 2: Multiply both sides by 2.
Answer: x=10
Step-by-step explanation:
1/2x+4=9
-4 -4
1/2x=5
multiply by 1/2 on each side
x=10
Sarah's pay for two weeks was
$158.16. If she worked 8 hours the
first week and 4 hours the second,
what was her rate of pay?
A $3.23 per hr B$22.60 per hr
C $13.18 D $31.64 per hr
PLS HELP !! I WILL MARK BRAINLIEST!!!
Question
.........
The number of bacteria in a Petri dish quadruples every hour. How many bacteria are in the dish after 5 hours if there were originally 10 bacteria?
last week , tina worked 35 hours in 5 days she worked the same number of hours each day , How many hours did she work each day
HELP DUE IN 15 MINS!
Reason 2:
-Division Property of Equality
-SAS Postulate
-AA Postulate
-Reflexive property of Congruence
-Given
-Vertical Angle Theorem
-SSS Postulate
-Prove
Answer:
Missing reasons:
1. Given (the ratios of corresponding sides)
2. Reflexive property of Congruence (same angle K)
3. SAS Postulate (two sides are similar and the included angle congruent)
If a Point E lies between two points D and F such that DE = EF, then prove that DE = 1/2 DF. Explain by drawing the figure.
Answer:
Step-by-step explanation:
DE = EF
DF = DE + DF
= DE + DE
DF = 2DE
2DE = DF
DE = (1/2)DF
How many times larger is 6*10^ 7 than 3*10^ 6 ?
Answer:
20
Step-by-step explanation:
step 1: Evaluate the expressions
6*10^7 = 60,000,000
3*10^6 = 3,000,000
step 2: Devide
60,000,000 / 3,000,000 = 20
so 60,000,000 is 20 times larger than 3,000,000
Your teacher might want you to use a different method, but I believe this is the simplest way. If you have any questions feel free to ask away
Answer:
20
Step-by-step explanation:
[tex] \dfrac{6 \times 10^7}{3 \times 10^6} = \dfrac{6}{3} \times 10^{7 - 6} = 2 \times 10^1 = 20 [/tex]
What is m ∠ ZUB?
23.7°
32.8°
33.5
57.2°
Answer:
23 .7 ruim
57.2 sol
32 .8 mais ou menos
tchau bj
Please. I’m begging for help. I have no idea what to do. Could you possibly explain on how to do it
Find the slope of the line that passes through the points (-3, 2) (5, 4).
O 1/8
O 2/8
O 3/8
1
4
HURRY PLS THIS IS TEST!!
50point for answer + brainliest
Answer:
a) 4³ = 4×4×4 = 64
so answer is 4³
b) (3²)⁶ = 3²×⁶
= 3¹²
so answer is 3¹²
c) 125 = 5³
(5⁴)⁷ = 5²⁸
= 5³ × 5²⁸
= 5³¹
Answer:
a, 4 the power of 3
b,3 the power of 12
c, 5 the power of 31
Step-by-step explanation:
a. prime factorization of 64 is 4^3
b. 2.6=12 so it became 3^12
c. prime factorization of 125 is 5^3 then 7.4 =28
so 5^3 . 5^28 = 5^31
25. Tickets to a movie cost $5 for adults and $3 for students. A group of friends purchased 18 tickets for $82.00. How many adults ticket did they buy?
26. A farmhouse shelters 10 animals. Some are pigs and some are ducks. Altogether there are 36 legs. How many of each animal are there?
Please help with steps
Which system of linear equations has a solution of (2, 3)?
Answer:
i don't know
Step-by-step explanation:
3. A teacher made a copy of a map. To make the map easier to see, the teacher enlarged the area of the map by 38%. Let d represent the area of the original map. The expression d + 0.38d is one way to represent the area of the new map. Write two expressions that represent the area of the new map.
Answer:
1.38d
Step-by-step explanation:
$10,000 is invested at 0.75% annual interest for 3 years. a. Simple interest
Find the area of the circle. Round your answer to the nearest hundredth.
2 cm
Answer:
12.57 if 2cm is the radius,
3.14 if 2cm is the diameter
Step-by-step explanation:
If the radius 2cm
A = πr^2 = π·2^2 ≈ 12.56
If the diameter 2cm
A= πr^2 = π·1^2 ≈ 3.14
Sponsoring a donkey costs £2 a month. Which calculation will help Beth work out how many years she can sponsor a donkey for with £80. A) 80-2 X 12 B) 80/2 X 12 C) 80/12 ÷ 2. D) 12 X 2 ÷ 80
Answer:
B
80/2×12 becouse one year it costs 12×2 since its 12 months .
help i don't know what to do please help
HURRY PLEASEEEEEE eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
Answer:
rate: 24:2
unit rate: 12:1
Step-by-step explanation:
Given function:
24 inches in 2 feetto find the rate and unit rateWhat is the rate?:
24 inches would be the first digit and 2 feet would be the second one..
the rate would be 24:2..
What is the unit rate?:
unit rates would be the lowest form which means that you have to find a equivalent factor to find the unit rate..
24*2=12, 2*2=1
this also means 12:1
Therefore, the rate of 24 inches and 2 feet is 24:2 and the unit rate would be 12:1.
On a coordinate plane, what is the distance between the point at (4, 7) and the point at
(-4, 7)?
Answer:
8
Step-by-step explanation:
Distance= √(-4-4)² + (7-7)²
= √(-8)² + (0)²
= √64
= 8
I WILL GIVE U BRAINLYIST FIRST TO ANSWER RIGHT
Answer:
D
Step-by-step explanation:
Its D because thebsample of 2 is noticed
write the equation for this table
Write two numbers that multiply to the value on top and add to the value on bottom.
Answer:
10 ,22
Step-by-step explanation:
i think so.................
Write an expression equivalent to 6 - 4(3 - 6m) + 12m that is the product of two factors. Show your work.
Answer: 6(6m - 1)
Step-by-step explanation:
6 - 4(3 - 6m) + 12m
= 6 -12 + 24m + 12m
= 36m - 6
= 6(6m - 1)
Carter has a pool that can hold a maximum of 450 gallons of water. The pool already contains 150 gallons of water. Carter begins to add water at a rate of 8 gallons per minute. He wants to know how many minutes he needs to reach its maximum capacity. Let m represent the number of minutes. almost forgot:
Write an inequality that represents this problem.
Maximize Y = 1.27 - 0.03x - 0.05y, using the constraints:
x>_0
y>_0
Y>_-x+10
Y<_-x+15
y<_2/3 x
sorrry I couldnt write it any better
Answer:
a. x(2+3x)b.x= 0, −2/333. a. 2x2(3x−1) b.x= 0, 1/335. a. (x−1)(x−7)b.x= 1, 7 37. a. (x−3)(x+4)b.x= 3, −439. a.
Step-by-step explanation:
What goes on the green box ?
Answer:
5^9 / 5^3 = 5^6
the answer is 6
Step-by-step explanation:
ill mark brailist plss help