Given sides of the triangle:
3x^2 + 8,2x^2 + x, andx - 3.We know that the perimeter of a triangle is the sum of all the sides of a triangle.
Perimeter of the triangle,
= 3x^2 + 8 + 2x^2 + x + x - 3
= 3x^2 + 2x^2 + x + x + 8 - 3
= 5x^2 + 2x + 5
Therefore, the perimeter of the triangle is 5x^2 + 2x + 5. Hence, the option A is the correct answer.
Your job is 7.5 miles from home. One option is to take the back roads to work. That route is calculated for driving at an average speed of 30 miles per hour. How long will it take you to get to work this way?
Step-by-step explanation:
So if you are 7 and a half miles away, and you drive 30 miles per hour, you need to take 7.5 and divide it by it by 30 and you get 0.25, you then need to find what is a quarter (0.25) of 60 minutes, and you will find that it is 15 minutes.
So:
Answer:
The route will take 15 minutes to get to work taking the back roads.
Hope this helps!
-all my digits are different
-my ones digit is 4 times my hundreds digit
- my thousands digit is a perfect square
-my ones digit is 3 more than my tens digit
what number am I?
all my digits are different
-my ones digit is 4 times my hundreds digit
- my thousands digit is a perfect square
-my ones digit is 3 more than my tens digit
what number am I?
Solve: 3/2 ( 7x - 9 ) = 60
ASAP I need Answer .......
Answer:
[tex]auphy = (6 \: 9 \: 11) \\ ainter \: section \: phy = null \: set \\ thank \: you[/tex]
If Σfx = 60+45a and Σf = 12+9a , find the mean.
Step-by-step explanation:
Σfx = 60+45a
Σf = 12+9a
Now
Mean =Σfx/Σf
= 60+45a/12+9a
=105/21 (a has been canceled)
=5
Therefore mean =5
what is 2t+10t-6t equaled to
6t
Step-by-step explanation:
some mosquito trying to go in my ear
buz buz
should be the right answer but im not sure
Is 9.2 a rational number or irrational explain with steps please
Answer:
Step-by-step explanation:
It is rational because it doesn't have infinite decimals
11. Kirk's goal was to save $300 for a trip. In the first week, Kirk saved $16 from his allowance and $54 from his job. He spent $5 for lunch one day and another $2 on the bus. The second week, Kirk saved $62 and another $41, but spent $2 for the bus and $4 for lunch.
A.How much money did Kirk save in the first week? Use integers to solve.
B.How much money did Kirk save after 2 weeks?
C.If Kirk saves $150 in the third week, but spends $8, will he reach his goal of saving $300? Explain.
The product of two irrational number is always __-
Answer:
[tex]irrational \: or \: rational \\ for \: exmple \sqrt{2} \times \sqrt{2} = 2 \\ thnk \: you[/tex]
One fifth of the square of a number. Equation
Answer:
[tex] = \frac{1}{5} {x}^{2} [/tex]
what is the first step that should be performed to find the value of this expression 120 - 15 x (30 - 6) + 12
what are the answers to these questions algebra 1
Answer:
Step-by-step explanation:
1: x=5
2: x=2
3: x = 3
4: x=5
5: x=3
6: x=4
7: x=37
You have cup of cocoa in your cupboard. A recipe for cookies calls for 1
cup of cocoa. How much cocoa would you have left if you made the cookies?
Answer:
None
Step-by-step explanation:
sorry don't know how to delete this
Hi! I'm happy to help!
The recipe calls for 1/4 of a cup of cocoa, and we have 5/6 of a cup.
We use subtraction to solve for the difference:
5/6-1/4
To solve for this, we need to find a common denominator. We do this by finding the least common multiple of the two denominators we already have.
The least common multiple is 12, because that is the lowest number that both 6 and 4 are factors of.
We multiplied the 6 by 2 to get twelve, so, to make it equivalent, we have to multiply the 5 by 2 also.
10/12-1/4
Now, since we multiplied the 4 by 3 to get twelve, we need to do the same to the 1.
10/12-3/12
You never subtract denominators, only numerators. Now, all we have to do is 10-3:
10/12-3/12=
7/12
So, you would have 7/12 cup of cocoa left over if you made the cookies.
I hope this was helpful, keep learning! :D
(geometry) i would appreciate help please
Answer:
63
Step-by-step explanation:
We are taking a dilation of 3, so that means we are multiplying by 3. We multiply 3 to 21 to get 63.
I need help fast pls help me! (question is in the image)
Answer:
5.2
Step-by-step explanation:
3.7 - (-1.5)
3.7 + 1.5
5.2
Answer:
5.2
Step-by-step explanation:
maths
-3x-7(x+4) what is the answer
Answer:
-10x-28
Step-by-step explanation:
-
if 5t=5 then t is what number
Answer:
1
Step-by-step explanation:
5t = 5
divide equation by 5 to get rid of it
t = 1
This is because 5t means "5 times t". The t is a placeholder for a number.
To solve for t, we divide both sides by 5
5t = 5
5t/5 = 5/5
t = 1
Note how 5t = 5 becomes 5*1 = 5 after replacing t with 1. Because 5*1 = 5 is a true statement, this helps confirm we have the correct answer.
(NEED HELP PLS ANSWER GIVING 100 POINTS) Following my question of "If a student didn't turn an assignment in on the 27th of august, and the teacher deducted 10 percent each day. How much credit would they get if they turned it in on the 1st of September?" If the students current grade was a 41 F how higher would it get if they turned it in ( worth 40% of grade)
Answer: The student would get 70% credit.
The student’s overall grade would be
Step-by-step explanation:
The mZ3=12x-30 and mZ1=8x-6. Find the value of x.
the fraction '' 20/40'' is the same as ___+____ which reduces to__
Step-by-step explanation:
20/40 is same as 20÷40 which reduces to 1/2.
Indicate whether each equation is equivalent to this equation: 4x + 3 = 5/2x - 7
A. 4x = 5/2x - 4
B. 8x + 3 = 5x - 7
C. 4x = 5/2x - 10
Answer:y = 3 suh slid este ob cine este a, b și g au nevoie de acel kinfo pentru a termina
Step-by-step explanation:
Nine less than a number is -24.
Find the number.
number the resu
Answer:
-15
Step-by-step explanation:
the number is N
N - 9 = -24
N = -15
Answer:
the answer is 33
Step-by-step explanation:
-24 + 9 = -33
There are 24 hots and 14 hamburgers write the ratio of hotdogs and hamburgers
Answer:
12:7
Step-by-step explanation:
24 is the number of hotdogs and for very 24 hotdogs there are 14 hamburgers:
So it can be wirriten like this: 24:14
But we can simlify it further by dividing each side by 2.
24 / 2 : 14 / 2
12:7
296 divide by 0.08 whats the answer plz answer, and show me how you did it plz
Answer:
Step-by-step explanation:
Ok so u can’t divide a decimal with a whole number so u have to move the decimal poin from the 8 twice so it’s on the other side of the 8 and then there shouldn’t be any zeros before the 8 now divide 296 by 8 and instead of leaving the whole number like that u have to add the decimal point to it. So it should look like this 296.00 and then u can divide which is 3,700 hope this helped <3
a) biswant thought of a number. he double it and added 5. if he got 13, find the number he thought
Answer:
Four
Step-by-step explanation:
13- 5= 8
8/2=4
You simply do the problem in reverse.
Answer:
The number is 4
Step-by-step explanation:
Let the number = x
Double of x = 2*x = 2x
Then add 5 to it: 2x +5
2x +5 = 13
Subtract 5 form both side
2x + 5 - 5 = 13 - 5
2x = 8
Divide both sides by 2
x = 8/2
x = 4
Find the first four terms and the 47th terms of the sequence whose general term is an=(-1)n (n+1)
1st = -2
2nd = 3
3rd = -4
4th = 5
47th = -48
Simplify the expression and write the result in standard form, a+bi
3 √-25 =
Answer:
[tex]3 + \sqrt{ - 25} = 3 + \sqrt{25} i\\ = 3 + 5i \\or \: \\ 3 \sqrt{ - 25} \\ = 3 \times 5i = 15i \\ thank \: you \\ [/tex]
Find the area and perimeter.
Hint: The height of a non-right triangle is the length of the segment of a line that is perpendicular to the base and that contains the opposite vertex.
A. 6x + 36; 10x + 3
B. 12x + 72; 10x + 3
C. 12x + 72; 3x + 10
D. 6x + 36; 3x + 10
Step-by-step explanation:
Perimeter = 12 + x + 6 + 2x + 5
Perimeter = 3x + 23.
Area = ½ × b × h
Area = ½ × 12 × (x + 6)
Area = 6(x + 6)
Area = 6x + 36
PLSSSSSSSSSSSSSSSSs Help me i have to send this to my math teacher before yk back to school starts
Q/ True or False
4. Ans ; False —> because
[tex] \frac{2 \times 3.5}{3 \times 3.5} = \frac{7}{10.5} [/tex]
Or; 2/3= 0.6 , 7/16= 0.43 so no equal
5. True —> because
[tex] \frac{5 \times 9.6}{15 \times 9.6} = \frac{48}{144} [/tex]
Or; 5/15=0.33 , 48/144 = 0.33 so equal
6. True —> because
[tex] \frac{12 \times 1.5}{28 \times 1.5} = \frac{18}{42} [/tex]
Or; 12/28=0.4285 , 18/42=0.4285 so equal
Q/ value " x "
7. Ans;
[tex] \frac{3}{6} = \frac{x}{8} \\ 6x = 8 \times 3 \\ 6x = 24 \\ x = \frac{24}{6} \\ x = 4[/tex]
8. Ans;
[tex] \frac{52}{x} = \frac{4}{1} \\ 4x = 52 \\ x = \frac{52}{4} \\ x = 13[/tex]
9. Ans;
[tex] \frac{15}{12} = \frac{10}{x} \\ 15x = 10 \times 12 \\ 15x = 120 \\ x = \frac{120}{15} \\ x = 8[/tex]
10. Ans;
[tex] \frac{18}{x} = \frac{2.4}{28} \\ 2.4x = 28 \times 18 \\ 2.4x = 504 \\ x = \frac{504}{2.4} \\ x = 210[/tex]
11.Ans;
[tex] \frac{3}{4} = \frac{x}{3.8} \\ 4x = 3.8 \times 3 \\ 4x = 11.4 \\ x = \frac{11.4}{4} \\ x = 2.85[/tex]
12. Ans;
[tex] \frac{x}{12} = \frac{2 \frac{1}{3} }{5} \\ \frac{x}{12} = \frac{ \frac{7}{3} }{5} \\ \\ \frac{x}{12} = \frac{7}{3} \div 5 \\ \\ \frac{x}{12} = \frac{7}{3} \times \frac{1}{5} \\ \\ \frac{x}{12} = \frac{7}{15} \\ \\ 15x = 12 \times 7 \\ 15x = 84 \\ \\ x = \frac{84}{15} \\ \\ x = 5.6[/tex]
Q/ Write each ratio
1.Ans;
[tex] \frac{30 \: ft}{60 \: ft} = \frac{30 \: ft \: \: \div 30}{60 \: ft \: \: \div 30} = \frac{1 \: ft}{2 \: ft} [/tex]
2. Ans;
[tex] \frac{45 \: mph}{25 \: mph} = \frac{45 \: mph \: \div }{25 \: mph \div 5} = \frac{4 \: mph}{5 \: mph} [/tex]
3. Ans;
[tex] \frac{6 \: min}{16 \: min} = \frac{6 \: min \: \div2 }{16 \: min \: \div 2} = \frac{3 \: min}{8 \: min} [/tex]
4. Ans;
[tex] \frac{300}{450} = \frac{300 \div 150}{450 \div 150} = \frac{2}{3} [/tex]
5. Ans;
[tex] \frac{48 \: gal}{14 \: min} = \frac{48 \: gal \div 2}{14 \: min \div 2} = \frac{24 \: gal}{7 \: min} [/tex]
6. Ans;
[tex] \frac{21 \: fem}{61 \:mal } = \frac{21 \: fem \div 3}{51 \:mal \div 3} = \frac{7 \: fem}{17 \: mal} [/tex]
7. Ans;
[tex] \frac{4.2}{36} = \frac{4.2 \div 12}{36 \div 12 \: pot} = \frac{0.35}{3 \: pot} [/tex]
8. Ans;
[tex] \frac{72 \: correct}{96 \: questions} = \frac{72 \: correct \div 24}{96 \: questions \div 24} = \frac{3 \: correct}{4 \: questions} [/tex]
Q/Find the unit rate
9.Ans;
[tex] \frac{1500 \: m}{6 \: s} = \frac{250 \: m}{1 \: s} [/tex]
10. Ans;
[tex] \frac{192 \: mil}{6 \: gal} = \frac{32 \: min}{1gal} [/tex]
11. Ans;
[tex] \frac{20 \: people}{5 \: cars} = \frac{4 \: people}{1 \: cars}[/tex]
12.Ans;
[tex] \frac{36}{4 \: lbs} = \frac{9}{1 \: lbs} [/tex]
I hope I helped you^_^
