1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Zigmanuir [339]
3 years ago
9

2x-9x+17=-4 I have a answer but I’m not sure if I’m correct so I just want to double check.

Mathematics
2 answers:
andrey2020 [161]3 years ago
8 0

Answer:

x=3

Step-by-step explanation:

  1. subtract 2x and 9x ( 2x-9x= -7x)
  2. subtract 17 and -4 ( -4 -17= -21)
  3. divide -21 and -7 ( -21 / -7= -3)
  4. x=3
vova2212 [387]3 years ago
3 0

Answer: x = 3

Step-by-step explanation: Simplify both sides

2x - 9x + 17 = -4

2x + - 9x + 17 = -4

Combine like terms

(2x + -9x) (17) = -4

-7x + 17 = -4

Subtract 17 from both sides

-7x + 17 - 17 = -4 - 17

-7x = -21

Divide both sides by -7

-7x/-7 = -21/-7

x = 3

You might be interested in
Convert 8 miles into feet and then into inches.
Orlov [11]

Answer:

5,280 * 8 = 42,240

42,240 feet

42,240 * 12 = 506,880

506,880 inches

Step-by-step explanation:

5 0
3 years ago
Least the containers from least to greatest capacity; 1.73, 2.061, 1.59, 2.1
RSB [31]

Answer:

1.59 < 1.73 < 2.061 < 2.1

Step-by-step explanation:

Hello,

We know that 2 is higher than 1. So to pick the first ones we know it won't be the two numbers starting with a 2. We are left with two numbers : 1.73 and 1.59. <u>In this case we can multiply these two numbers by 100. We are allowed to do this only if we do it to all the numbers we are trying to figure out.</u> In this case, it is 1.73 and 1.59 (we are excluding the 2s). So we end up with : 173 and 159. This might help you. We obviously know that 173 is a larger number than 159.

So, we then proceed to the numbers starting with a 2. <u>In this case we can multiply both by 1,000 considering the fact that the number 2.061 has 3 digits after the dot.</u> This will make it easier for us. When we multiply both by 1,000 we end up with 2,061 and 2,100. We obviously know that 2,061 is smaller than 2,100.

I hope this helped

Kind regards,

Clém

7 0
3 years ago
Find the exact values of sin2 θ for cos θ = 3/18 on the interval 0° ≤ θ ≤ 90°
mote1985 [20]

Answer:

sin(2\theta)=\frac{\sqrt{35} }{18}

Step-by-step explanation:

Recall the formula for the sine of the double angle:

sin(2\theta)=2*sin(\theta)*cos(\theta)

we know that cos(\theta)=\frac{3}{18}, and that \theta is in the interval between 0 and 90 degrees, where both the functions sine and cosine are non-negative numbers. Based on such, we can find using the Pythagorean trigonometric property that relates sine and cosine of the same angle, what sin(\theta) is:

cos^2(\theta)+sin^2(\theta)=1\\sin^2(\theta)=1-cos^2(\theta)\\sin(\theta)=\sqrt{1-cos^2(\theta)} \\sin(\theta)=\sqrt{1-(\frac{3}{18} )^2}\\sin(\theta)=\sqrt{1-\frac{9}{324} }\\sin(\theta)=\sqrt{\frac{324-9}{324} }\\sin(\theta)=\sqrt{\frac{315}{324} }\\\\sin(\theta)=\frac{3}{18}\sqrt{35 }

With this information, we can now complete the value of the sine of the double angle requested:

sin(2\theta)=2*sin(\theta)*cos(\theta)\\sin(2\theta)=2*\frac{3}{18} \,\sqrt{35} \,\frac{3}{18}\\sin(2\theta)=\frac{2*3*3}{18*18}\,\sqrt{35} \\sin(2\theta)=\frac{\sqrt{35} }{18}

6 0
3 years ago
All parallelograms are _______
KengaRu [80]

Answer:

b) trapezoids

Step-by-step explanation:

a trapezoid has atleast one pair of opposite parallel sides

8 0
3 years ago
A company fabricates cast concrete cylindrical columns for a new pavilion.The columns are 3 meters tall and have a radius of 0.6
Ainat [17]

Answer:

The answer is 13.57m^2

Step-by-step explanation:

On Edmentum I got it right.

8 0
2 years ago
Other questions:
  • Add 5 and 14,triple the sum,and then add four-fifths find the expression
    13·1 answer
  • Somebody please help with this problem
    14·1 answer
  • PLS HELP ASAP I WILL GIVE BRAINERLIST PLUS 15 POINTS
    5·1 answer
  • I WILL GIVE BRAINLIEST AND 50 POINTS!!!(ANSWER ALL QUESTIONS) Question 1(Multiple Choice Worth 4 points) Erica purchased adult a
    9·1 answer
  • What is 82 divided by 4 in whole numbers
    9·1 answer
  • Hellllllllllllllllllllllllllllppppppppppppppppp
    13·2 answers
  • janelle came to the bat 262 times in 91 games. at this rate, how many times should she expect to have at bat in full season of 1
    12·1 answer
  • PLEASE!! HELP!!
    10·1 answer
  • A salesperson at a jewelry store earns ​5% commission each week. Last​ week, Jarrod sold $640 worth of jewelry. How much did he
    6·2 answers
  • 12. MP Persevere with Problems Write the function rule for each function.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!