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
leva [86]
3 years ago
13

Simplify the following expression

Mathematics
1 answer:
NNADVOKAT [17]3 years ago
8 0

Answer:

  1. -17.9
  2. 2n -7.4

Step-by-step explanation:

In each case, the only "like" terms are the constants. They are added together in the usual way.

1. -2.8 +0.9 -12 -4 = 0.9 -(2.8 +12 +4) = 0.9 -18.8 = -17.9

2. 2n +5.5 -0.9 -8 -4 = 2n +5.5 -(0.9 +8 +4) = 2n +5.5 -12.9 = 2n -7.4

You might be interested in
Can someone help me find x
Viefleur [7K]

Answer:

Rounded to the nearest tenth: x=5.7 in

Rounded to the nearest hundredth: x=5.74 in

Step-by-step explanation:

We have a right triangle with a given angle of 35°. We also have the opposite side of that angle, x, and its hypotenuse 10 in. To find x, we are using the trig function that relates  the opposite side with the hypotenuse; in other words, the sine trig function.

sin\alpha =\frac{opposite}{hypotenuse}

sin(35)=\frac{x}{10}

x=10sin(35)

x=5.735764364

Rounded to the nearest tenth: x=5.7 in

Rounded to the nearest hundredth: x=5.74 in

4 0
3 years ago
The container that holds the water for the football team is 2/9 full. After pouring in 12 gallons of water, it is 2/3 full. How
Luden [163]

Answer:

27 gallons

Step-by-step explanation:

Our equation is: \frac{2x}{9} +12 = \frac{2x}{3}

What do we need to find: x

We need to first find x, so lets find x first.

12 =  \frac{2x}{3}  -  \frac{2x}{9}

=> 12 = \frac{6x}{9} - \frac{2x}{9}

=> 12 = \frac{4x}{9}

=> x = 27

Lets go back to our equation.

\frac{2(27)}{9} +12 = \frac{2(27)}{3}

We are going to simplify this before solving this. We are going to get:\frac{54}{9} +12 = \frac{54}{3}

=> 18 = 18

Therefore, we found x and we checked that our x value is correct. Now, we need to find how many gallons can the container can hold.

\frac{3x}{3} = a                                                           [a = gallons can the container hold]

=> x = a

Basically that means the container can hold 27 gallons of water.

Please give me brainliest if this is helpful ;D

4 0
2 years ago
Read 2 more answers
Solve the literal equation for y. 4x-5=7+4y
Natalka [10]

Answer:

y=x−3

Step-by-step explanation:

Flip the equation.

4y+7=4x−5

Add -7 to both sides.

4y+7+−7=4x−5+−7

4y=4x−12

Divide both sides by 4.

\frac{4y}{4}= \frac{4x-12}{4}

y=x−3

ik this doesnt make any sense but hope this helps :/

7 0
3 years ago
Mason borrowed 1,200 from a friend to buy a new hot tub, His friend does't charge any interest and mason makes 50 payments eavh
balu736 [363]
You can identify the slope and y-intersept. The slope is 50 and the y-intercept is (0, 1200). You could also do the x-intercept, which would be the number of months passed when he pays off the debt fully. The x intercept would be (24,0)
5 0
3 years ago
Fran has a plank of wood 4.65 meters long. She wants to cut it into pieces 0.85 meters long. How many pieces of wood that length
DochEvi [55]
5 pieces. 4.65÷0.85=5. so u divide and ur answer is 5
3 0
3 years ago
Other questions:
  • A set of stacking cubes measures 2cm by 2cm by 2cm. Kathy stacks eight cubes, and marco stacks five cubes. How much greater is t
    10·1 answer
  • Which graph represents the hyperbola x^2/3^2 - y^2/8^2
    14·1 answer
  • Cesar is 35 years old. He has $870 in a checking account, $2900 in a savings
    7·2 answers
  • Bryan hiked 8.48x 105 feet last summer. There are approximately 5.3x 10 feet in
    12·1 answer
  • The elevation of city A is 96 feet below sea level; the elevation of city C is 25 feet below sea level. The elevation of city D
    15·1 answer
  • A compact minivan costs $16,000 with a residual value of $1,000. It has an estimated useful life of five years. If the minivan w
    6·1 answer
  • How many significant figures are there in the number 3,002.1?
    14·1 answer
  • Find the area of the triangle.<br> A) 78 m2 <br> B) 175 m2 <br> C) 196 m2 <br> D) 350 m2
    6·2 answers
  • Four subtracted from two times a number is 48. What is the number?
    10·1 answer
  • Pls help me to find out this answer e,f,g,h no. only​
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!