Answers
Answer:
4x²+20x+25
Step-by-step explanation:
(2x+5)² = (2x+5)(2x+5)
(2x+5) (2x+5) = 2x(2x) + 2x(5) + 5(2x) + 5(5)
= 4x² + 10x + 10x + 25
= 4x²+20x+25
Related Questions
what is Use the table to solve the inequality 2x<2.
x −1 0 1 2 3
2x
Answers
Answer:
x less than 1
Step-by-step explanation:
Which of the following is not a right triangle?
Group of answer choices
3 in, 4 in, 5in
6 in, 11 in, 13 in
8 in, 15 in, 17 in
15 in, 20 in, 25 in
Answers
Can someone find the factors of this equation I’ll mark u as brainlist
Answers
Answer:
x = -4 , x = -1
Step-by-step explanation:
x² + 5x + 4 = 0
1) write 5x as a sumx² + 4x + x + 4 = 0
2) factor out x from the expressionx ( x + 4 ) + x + 4 = 0
3) factor out x + 4 from the expression( x + 4 )( x + 1 ) = 0
4) the product of factors equals to 0i) x + 4 = 0
x = -4
ii) x + 1 = 0
x = -1
There is a spinner with 10 equal areas, numbered 1 through 10. If the spinner
is spun one time, what is the probability that the result is a multiple of 2 and a
multiple of 5?
Answers
Answer:
10%
Step-by-step explanation:
The multiples of 2 are 2,4,6,8,10, and so on
The multiples of 5 are 5, 10, 15, 20 , 25, and so on
It is evident that the only one that matches up between 1-10 is 10.
There are 10 options, and our chances are random. There is only 1 option for it to be a multiple of both 2 and 5. Therefore, the probability is 1/10, or 10%
Pls helpppp what’s the y in the solution
Answers
Answer:
Y axis
Step-by-step explanation:
Answer:
Y axis
Step-by-step explanation:
what is 45% of 7/10:)
Answers
Answer: 45% of 7/10 is 0.315
please please pleaseeeee help me!!
Answers
Answer:
wanna see my pokemon cards
Step-by-step explanation:
please answer a soon as possible
A gallon of paint can cover 75 square feet. Maddie is painting a wall that measures 12x8.How many square feet will be uncovered if she only has one gallon of paint
Answers
12 x 8 is 96. Since a bucket of paint can cover 75,you would subtract 96 from the 75.That gives you 21.So if she only has one gallon,only 21 will remain unpainted.
Hope this helps-Nea
Find the measures of the angles in a triangle with the ratio of 2:7:9
Answers
Answer: 20, 70, 90
====================================================
Work Shown:
Let x be some positive real number.
Multiply each part of the given ratio by x to get 2x:7x:9x
So we have the three angles 2x, 7x, and 9x.
For any triangle, the three angles must add to 180
2x+7x+9x = 180
18x = 180
x = 180/18
x = 10
This leads to
2x = 2*10 = 207x = 7*10 = 709x = 9*10 = 90The three angles of this triangle are: 20, 70, 90
This is a right triangle due to the 90 degree angle.
Three different bags of pretzels are sold at the store. Which bag of pretzels is the best buy?
Bag A:10 ounces for $1.10
Bag B:12 ounces for $1.38
Bag C: 6 ounces for $0.84
A. Bag A
B. Bag B
C. Bag C
D. Bag A and Bag B are equally good values
Answers
Answer:
A: 11 cents per ounce
B: 11.5 cents per ounce
C: 14 cents per ounce
Bag A would be the best buy
Abby wants to buy a new purse for $23.57. She gives the cashier a $20 bill and a $10 bill. How much change does she get back?
Answers
Answer:
$ 6.43
Step-by-step explanation:
Answer:
She gets back $6.43 dollars as change
Step-by-step explanation:
If you add 20 and 10 you get 30, and if u subtract 23.57 from 30 like this, 30.00 - 23.57
30.00 29.99
- 23.57 - 23.57
------------------
06 .42
Hope this help :)
I WILL GIVE YOU BRAINLY PLSS
Victor scored a 9, 7, and 10 on his first three math tests. What score must he get
on his fourth test to have a score of at least 34 points?
A. ≥ 8
B. 9
D. > 8
PLSS SHOW YOUR WORK PLSS
Answers
Answer:
9
Step-by-step explanation:
9+10+7=26. 9+26=35 so he has 35 points which is more than 34. hope this helps
Alex has a 48 -ounce sports drink. He drinks 16 ounces. What
percentage of ounces does Alex have left of his sports drink?
Answers
Answer:
32% or just 32
Step-by-step explanation:
Simplify to create an equivalent expression. 3n+2(−2n−1)
Answers
Answer:
3n+2(-2n-1)
3n+[-4n-2]
3n-4n-2
-n-2
If
-n-2=0
Answer:
-n - 2
Step-by-step explanation:
The equation ey = 2x is equivalent to .
Answers
Answer: y=In 2x
Step-by-step explanation:
Answer:
The equation ey = 2x is equivalent to
✔ y = ln 2x
.
Step-by-step explanation:
⚠️⚠️FIND THE MISSING LENGTH OF THE TRIANGLE⚠️⚠️
⚠️⚠️HURRY PLEASE⚠️⚠️
⚠️⚠️DO QUESTIONS 5 AND 7⚠️⚠️
Answers
Answerlol
Step-by-step explanation:
6-8(x+3)+5x>6x-(2x-5)+12
Answers
Isolate the variable by dividing each side by factors that don't contain the variable.
Inequality Form:
x<−5
x<-5
Interval Notation:
(−∞,−5)
Plot two points that are 8 units from Point B and also share the same x-coordinate as Point B. y
Answers
Answer:
y
Step-by-step explanation:
Answer: I don't know I'm sorry
7th grade math , help me pleasee :(
Answers
Answer: translate 10 units down, then reflect across the y axis
Step-by-step explanation:
Step by step explanation
1.36 as a fraction help
Answers
Answer: 34/25
Step-by-step explanation:
(136÷4)(100÷4) = 34/25 when reduced to the simplest form. As the numerator is greater than the denominator, we have an IMPROPER fraction,
Answer:
The answer is 1 [tex]\frac{9}{25}[/tex]
Seven students took a spelling test. The following represents each student’s score. What is the median score?
24, 25, 25, 33, 35, 36, 39
Answers
Answer:
33
Step-by-step explanation:
please mark me as brainliest!!<3
Right=20 points and I'll answer one of urs
Answers
Solution for 48 is what percent of 120:
48:120*100 =
(48*100):120 =
4800:120 = 40
Answer:
40
Step-by-step explanation:
so (48/120)× 100%=40%
Round to the nearest hundredth O(5x + 2) = 2(9x - 6) Type your answer...
Answers
Answer:
Solving the expression and round to the nearest hundredth
[tex]0(5x+2)=2(9x-6)[/tex] we get [tex]\mathbf{x=0.67}[/tex]
Step-by-step explanation:
We need to solve the expression and round to the nearest hundredth
[tex]0(5x+2)=2(9x-6)[/tex]
Solving:
[tex]0(5x+2)=2(9x-6)[/tex]
We know that multiplying anything by zero we get zero
[tex]0=2(9x-6)[/tex]
Switching sides
[tex]2(9x-6)=0[/tex]
Multiplying 2 with terms inside the bracket
[tex]18x-12=0[/tex]
Adding 12 on both sides
[tex]18x-12+12=0+12\\18x=12[/tex]
Divide both sides by 18
[tex]\frac{18x}{18}=\frac{12}{18}\\x=0.666[/tex]
Rounding to nearest hundredth we get:
[tex]x=0.67[/tex]
So, solving the expression and round to the nearest hundredth
[tex]0(5x+2)=2(9x-6)[/tex] we get [tex]\mathbf{x=0.67}[/tex]
What is the value of n in the equation below? 9 n − 24 = 4 n + 6 A. –3 B. –6 C. 5 D. 6
Answers
First you want to get n on the side by itself.
So 9n-24=4n+6 you want to add 24 to both sides so you get 9n=4n+30 than you want to subtract 4n from both sides to get 5n=30 than divide 5 from both sides to get n by itself and you will get n=6
Line passes through ( 2,4 ) with slope = 3
Answers
Answer:
the slope intercept-form of an equation of a line is y=mx+b
Given that the slope is 3 and a point on the line is P(-2, 4), then
m=3 and from the point (-2, 4), x=-2 and y=4.
Step-by-step explanation:
y=mx+b.
4=3(-2)+b Now solve for b.
4=-6+b
4+6=b
10=b
Now you know b=10 and you already know the slope m=3. Substitute these values into y=mx+b. When you do you will get y=3x+10. This is your answer in slope intercept form.
What is the ratio 28 : 35 written in lowest terms?
09:15
07:19
0 4:5
03:7
Answers
Answer:
4:5
[tex]28 : 35 = \frac{28}{35} = \frac{4}{5} = 4 : 5 [/tex]
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1. Miranda is braiding her hair. Then she will attach
beads to the braid. She wants of the beads to
be red. If the greatest number of beads that will
fit on the braid is 12, what other fractions could
represent the part of the beads that are red?
Answers
Complete question :
Miranda is braiding her hair then she will attach beads to the braids she wants 1/3 of the beads to be red if the greatest number of beads that will fit on the braid is 12 what other fraction could represent the part of the beads that are red?
Answer:
2 / 6
Step-by-step explanation:
Fraction of red beads on braid = 1/3
greatest number of braids = 12
Fraction of red beads = (1 /3) * 12 = 4 red beads
Thus implies that :
When greatest number of braids = 12
fraction of red beads) = (Number of red beads / greatest number of beads)
Fraction = 4 / 12
Divide by 2 = 2/6 (don't reduce to lowest term).
Please answer quickly
Given: sin(A) = 4/5, pi/2 < A < pi and sin(B) = -2root5/5, pi < B < 3pi/2 What is the value of cos(A – B)?
Answers
Answer:
-√5/5
Step-by-step explanation:
Given the following
sin(A) = 4/5
sinB - -2√5/5
SinA = 4/5 = opp/hyp
We can get cosA
opposite = 4
hypotenuse = 5
Adj = √5²-4² (pythagoras theorem)
Adj = √25-16
Adj = √9
Adj = 3
Cos A = Adj/hyp
Cos A = 3/5
Also
Sin B = -2√5/5 = opp/hyp
opposite = -2√5
hypotenuse = 5
Adj = √5²-(2√5)² (pythagoras theorem)
Adj = √25-20
Adj = √5
Cos B = Adj/hyp
Cos B = √5/5
Evaluate cos (A-B)
cos (A-B) = cosAcosB + sinAsinB
cos (A-B) = 3/5(√5/5)+4/5(-2√5/5)
cos (A-B) = 3√5/25 - 8√5/25
cos (A-B) = -5√5/25
cos (A-B) = -√5/5
Hence the value of cos (A-B) is -√5/5
Jonathan is buying 1 new iPhone for $659 and three new pairs of headphones for $25 each which equation can be used to find y the total price Jonathan must pay
Answers
Answer: 659+(3*25)=y
Step-by-step explanation:
Answer:
734
Step-by-step explanation:
multiply the 25 by 3
next you add what you get from 25 x 3 to the price of the iphone
Three hundred cars drove over a bridge in 23 minutes. At that rate, how
many cars would drive over the bridge in 138 minutes?
Answers
Answer:
1800
Step-by-step explanation:
300 cars in 23 minutes so 300/25 = how many cars each minute
that equals 13.04347....
so on your calculator multiply that by 138 which gives you 1800 cars
Answer:
138/23×300=1800cars drove over the bridge
Step-by-step explanation: