Answer:
Expression for perimeter of triangle = 5x+8
Step-by-step explanation:
Given that:
Length of bottom of triangle = b = x
Length of other side = a = 3x + 5
Length of last side = c = x + 3
Perimeter of triangle = a + b + c
Perimeter = (3x+5)+x+(x+3)
Perimeter = 3x+5+x+x+3
Perimeter = 5x + 8
Hence,
Expression for perimeter of triangle = 5x+8
Text-to-Speech
13. Evaluate the expression 3x2 + 5y for x = 4 and y = 2.
Answer: (58)
Step-by-step explanation:
3(42)+(5)(2)
=(3)(16)+(5)(2)
=48+(5)(2)
=48+10
=58
section 4 algebra nation
need help asap!! !! !!
Answer:
18
Step-by-step explanation:
since U is the midpoint of QT, QT = 2(QU)
similarly, QS = 2 (QR)
because QR is parallel to QS and QU is parallel to QT, triangle QUR is similar to triangle QTS. therefore, the scaling factor between QT/QU and QS/QR is equal to the scaling factor between RU and ST.
therefore,
ST = 2(RU)
36 = 2(RU)
18 =RU
Out of 50 bagels on a tray, 32 of them are cinnamon bagels. What percent of the bagels are cinnamon bagels?
Answer:
64 o/o
Step-by-step explanation: 50 times 2 is 100 and 32 x 2 is 64
a lighthouse is located on an island 200 feet from the shore of the mainland as shown. If x=0.65, what is D?
please help ASAP
Answer:
251.222 feets
Step-by-step explanation:
X = 0.65 rad
To degree ;
X = 37.24°
We need to obtain the height :
Using Sine rule :
(37. 24 + y + 90) = 180
y = 52.76
y / sin Y = D / sin D
200/ sin 52.76 = D / Sin 90
251.22231 = D / sin 90
251.22231 * sin 90 = D
Sin 90 = 1
D = 251.222 feets
5x5:):):):):):):):):):):):)free
Answer:
25
Step-by-step explanation do 5 five times
1. Which two points on the number line are opposites?
——————————————-
-2 A -1 B 0 C 1 D
Not points B and C
2. Which two points on the number line are opposites? Use the number line above
Not points C and D
3. Which fraction is represented by point A on the number line ?
Not 1/4
Answer:
Option D. A and D
Step-by-step explanation:
Answer:
A and D
Step-by-step explanation:
Sorry I’m really late ✌️
Use the order of operations to simplify this expression
|7-8|•4+3(-1)
6sacks of potatoes weigh 122.4 kg and 4 sacks of onions weigh 50 kg. What is the total amount of 1 sack of potatoes and 1 sack of onions
Answer: See explanation
Step-by-step explanation:
6 sacks of potatoes weigh 122.4 kg
1 sack would weigh 122.4 kg ÷ 6
122.4 ÷ 6 = 20.4
1 sack of potatoes weighs 20.4 kg
4 sacks of onions weigh 50 kg
1 sack would weigh 50 kg ÷ 4
50 ÷ 4 = 12.5
1 sack of onions weighs 12.5 kg
Find the equation of the line shown.
Answer:
(0,5) will be linear equation
If 6:2=8x then answers are A.2x=14 B.2x=48 c. 6x=10 D. 6x=16
Answer:
16x = 6Step-by-step explanation:
If 6:2=8x then answers are A.2x=14 B.2x=48 c. 6x=10 D. 6x=16
6:2=8x can also be written as 6/2 = 8x/1
Cross multiply
2 * 8x = 6*1
16x = 6
Hence the expression can also be written as 16x = 6
what plus -57 Equals -6
Answer:
51
Step-by-step explanation:
Answer:
x=51
Step-by-step explanation:
x+-57=-6
add 57 to both of the sides...
x+-57=-6+-57
x=-6+57
solve
x=51
A construction crew has just built a new road. They worked for 2 weeks. They built the road at a rate of 2.56 kilometers per week. How many kilometers of road did they build?
help me plzzzz and tyyyy
Answer:
her language arts hw takes longer and it takes 2/9 hr longer
Step-by-step explanation:
first of all, 4/9 > 2/9
4/9-2/9=2/9
what is the value of the expression shown? 7 [(7 + 7) +7
Answer:
105
Step-by-step explanation:
7 (7x7) + 7 is the same as 7 x 14 + 7 so that would equal 105
This year, Martin's income is 1 /4 greater than his income from last year. If s represents his income from last year, what is his income this year?
1/4s
Step-by-step explanation:
Multiply 1/4 with s
Answer:
1/4s
Step-by-step explanation:
x 1/4 by s
Can you help me with this question?
Answer:
Reason SAS postulate
Step-by-step explanation:
The two triangles must be congruent.
Reason: SAS postulate
The graph shows the number of songs downloaded after x hours.
What is the slope of the line?
(D is only marked bc I couldn’t unmark)
Step-by-step explanation:
For every 2 hours across, the line graph goes up by 15 songs.
Therefore the slope of the line is 15/2. (D)
describe how to classify a polynomial as a monomial, a binomial , a trinomial, or none of these.
Answer:
A polynomial is an expression, and since mono means 1, monomial has 1 term in the expression, binomial has two, trinomial 3
The answer is:
⇨ belowWork/explanation:
Here's how we classify polynomials based on the number of terms:
monomial - has only one term
binomial - has two terms
trinomial - has three terms
polynomial - has four terms or more
Hence, these are the classifications.Jen simplified a radical expression. Her work is shown.
√
50
x
3
y
5
5
Step 1:
√
10
x
3
y
5
Step 2:
√
10
⋅
x
2
⋅
x
⋅
y
2
⋅
y
2
⋅
y
Step 3:
x
y
2
√
10
x
y
Did Jen make an error?
A.
Jen made an error in Step 1.
B.
Jen made an error in step 2.
C.
Jen made an error in step 3.
D.
Jen did not make an error.
Answer:
im taking the same test lol
Step-by-step explanation:
Identify the additive inverse and multiplicative inverse for the following number.
−3/4
Answer:
3/4 and - 4/3Step-by-step explanation:
Additive inverse ⇒ sum of numbers is zero:
-3/4 + x = 0x = 0 - (-3/4) = 3/4Multiplicative inverse ⇒ product of numbers is 1:
-3/4 * x = 1x = 1 ÷ (-3/4) = 1* ( - 4/3) = -4/3Step-by-step explanation:
the additive inverse and multiplicative inverse for the following number -3/4=-4/3
A ball is thrown vertically from the top of a building. The height of the ball after t seconds can be given by the function
Answer:The instantaneous velocity of the ball after 4 seconds is -0.4 m/s
Step-by-step explanation:
Step-by-step explanation:
If f(x) is the function which represents the distance that a particle moves after x seconds, with velocity v and acceleration a, then
v(x) = f'(x) ⇒ first derivative
a(x) = f"(x) ⇒ second derivative
∵ A ball is thrown vertically from the top of a building
∵ The height of the ball after t seconds can be given by the
function s(t)= -0.1(t -2)² + 10
- To find the function of the velocity differentiate s(t)
∵ s(t) = -0.1(t - 2)² + 10
- Solve the bracket
∵ (t - 2)² = t² - 4t + 4
∴ s(t) = -0.1(t² - 4t + 4) + 10
- Multiply the bracket by -0.1
∴ s(t) = -0.1t² + 0.4t - 0.4 + 10
- Add the like terms
∴ s(t) = -0.1 t² + 0.4t + 9.6
Now let us differentiate s(t)
∵ s'(t) = -0.1(2)t + 0.4(1)
∴ s'(t) = -0.2t + 0.4
- s'(t) is the function of velocity after time t seconds
∵ s'(t) = v(t)
∴ v(t) = -0.2t + 0.4
We need to find the instantaneous velocity of the ball after 4 seconds
Substitute t by 4
∴ v(4) = -0.2(4) + 0.4
∴ v(4) = -0.8 + 0.4
∴ v(4) = -0.4
∴ The v is -0.4 m/s ⇒ -ve means the velocity is downward
The instantaneous velocity of the ball after 4 seconds is -0.4 m/s
SUPER EASY PLEASE HELP:)
Answer:
Step-by-step explanation:
y = -4/5x + 2
y = 2/3x + 2
2/3x + 2 = -4/5x + 2
10/15x + 12/15x + 2 = 2
22/15x = 0
x = 0
y = 2/3(0) + 2
y = 0 + 2
y = 2
(0, 2)
Geometry i need help rn and could you tell me the name of this subject
Answer:
12Step-by-step explanation:
x is a midsegment of a given triangle as it connects the midpoints of the two sides.
Midsegment is parallel to the third side and equals to half of its measure:
x = 24/2 = 12What would be the first step you do to solve the equation below?
2x - 4 = 12
3x^2-19x-20=0 solve
plssssssssssssssssssssssssss
⚠️⚠️⚠️⚠️⚠️⚠️HELP QUICK! ⚠️⚠️⚠️⚠️⚠️⚠️
Solve
4x = 2y + 6
y = 2x-3
Infinitely Many Solutions
No Solution
(0,0)
(1.5, 0)
HEEEEEEELPPPPPPPPPPPPPPPP
Which is the correct algebraic expression for each phrase?
2.5 times as many pages.
a. 2.5p
b. p+2.5
c. 2.5÷p
d. p-2.5
The IRS was interested in the number of individual tax forms prepared by small accounting firms. The IRS randomly sampled 50 public accounting firms with 10 or fewer employees in the Dallas-Fort Worth area. The following frequency table reports the results of the study. Estimate the mean and the standard deviation.
Number of Clients
Frequency
20 up to 30
1
30 up to 40
15
40 up to 50
22
50 up to 60
8
60 up to 70
4
Answer:
44.80
9.27
Step-by-step explanation:
From the data:
Midpoint (x) : __ 25 _ 35 _ 45 _ 55 _ 65
Frequency (f) : _ 1 __ 15 __ 22 _ 8 __ 4
The mean (m):
Σfx / Σf
[(25 * 1) + (35* 15) + (45 * 22) + (55 * 8) + (65 * 4)] / (1 + 15 + 22 + 8 + 4)
= 2240 / 50
= 44.80
Standard deviation :
Sqrt[(Σ(X² * f) / Σf) - m²)]
[(25^2 * 1) + (35^2 * 15) + (45^2 * 22) + (55^2 * 8) + (65^2 * 4)] / (1 + 15 + 22 + 8 + 4)
(104650 / 50) - (44.80²)
1908.51 - 44.80^2
2093 - 2007.04
Sqrt(85.96)
= 9.27