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
guapka [62]
2 years ago
12

Plz help

Mathematics
1 answer:
riadik2000 [5.3K]2 years ago
4 0
  1. 4(20+22)
  2. 4(40+2)

This expression are equivalent to 4(42)

You might be interested in
In a certain month, Mason spent 1/6 of his salary in the first three days and $800 in the following ten days and after that he w
Nesterboy [21]
<h3>Answer:   $2400</h3>

========================================================

Explanation:

x = Mason's salary in dollars for that month

x/6 = one-sixth of his salary

x/6+800 = total amount spent (the x/6 dollars and $800 combined)

In total, he spent half his salary. This means he spent x/2 dollars for the month overall.

Set the two items equal to one another. Solve for x.

x/6 + 800 = x/2

6(x/6 + 800) = 6*(x/2) ... see note at the bottom of the page

x+4800 = 3x

4800 = 3x-x

4800 = 2x

2x = 4800

x = 4800/2

x = 2400

His monthly salary is $2400

1/6 of this is (1/6)*2400 = 2400/6 = 400 dollars. Add on the $800 he also spent to get a total of 400+800 = 1200 dollars spent, which is exactly one half of the $2400. The answer is confirmed.

-------

Note: I multiplied both sides by 6 to clear out the fractions. The value 6 is the LCD in this case.

7 0
2 years ago
What is the equation for a circle with the center, (0,0) and a radius of 4?
Leno4ka [110]

Answer:

(X-x0)^2 +(y-y0)^2= r^2

R=4

R^2=16

(X-0)^2+(y-0)^2=16

6 0
3 years ago
How many terms are in the algebraic expression 2y+3x-5x^2-g?<br><br><br>2<br>3<br>4<br>5
elena-14-01-66 [18.8K]
2y+3x-5x^2-g contains 4 terms that cannot be further simplified without know the values for the variables y, x, and g. Although 3x and -5x^2 contain the same variable x, since they have have different exponents, we can not directly add them together without knowing the value of x. 

The answer is 4. 
3 0
3 years ago
NEED ANSWER
grandymaker [24]

Answer:

\frac{x^{2}}{144}+\frac{y^{2}}{79.995}=1

Step-by-step explanation:

An ellipse centered a point (h,k) has the following formula:

\frac{(x-h)^{2}}{a^{2}}+\frac{(y-k)^{2}}{b^{2}}=1

The distance between foci is:

2\cdot c = \sqrt{[8-(-8)]^{2}+(0-0)^{2}}

2\cdot c = 16

c = 8

The center of the ellipse is:

C(x,y) = (-8 + 8, 0 + 0)

C(x,y) = (0,0)

The known vertex is on the horizontal axis of the ellipse. Then, the length of the semi-major axis is:

a = \sqrt{(12-0)^{2}+(0-0)^{2}}

a= 12

The length of the semi-minor axis is given by the following expression:

c =\sqrt{a^{2}-b^{2}}

b = \sqrt{a^{2}-c^{2}}

b = \sqrt{12^{2}-8^{2}}

b \approx 8.944

The equation of the ellipse is:

\frac{x^{2}}{144}+\frac{y^{2}}{79.995}=1

5 0
3 years ago
1) Sarah orders bracelets from a catalog. The bracelets cost $4 each and the shipping charge is $3. If Sarah
Fittoniya [83]
She can only buy two since the bracelet and shipping is $7 together so you can buy two $14
3 0
3 years ago
Read 2 more answers
Other questions:
  • Considerando o diagrama, determine:
    14·1 answer
  • Which graph is represented by the graph below
    13·1 answer
  • An investor buys 400 shares of stock in a fund when the net asset value is $19.62 and the offer price is $19.84. The investor se
    11·2 answers
  • A sweater originally costing x dollars is on sale. The price of the sweater after tax is
    12·1 answer
  • As part of a screening process, computer chips must be operated in an oven at 145 °C. Ten minutes after starting, the temperatur
    8·1 answer
  • If line a is parallel to line c, and line c is parallel to line f, and lines c and f are different lines, which of the following
    13·1 answer
  • I need help with this​
    8·1 answer
  • What should be done to both sides of the equation in order to solve y + 8.5 = 17.2?
    9·2 answers
  • I hate copy and pastes​
    13·2 answers
  • The table below shows that the number of miles driven by Lydia is directly
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!