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Murljashka [212]
3 years ago
9

Simplify the following expression. 938 + (-158)

Mathematics
2 answers:
Romashka-Z-Leto [24]3 years ago
8 0

Answer:

469/79

Step-by-step explanation:

timama [110]3 years ago
3 0

Answer:

780

Step-by-step explanation:

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Can u pls help me i am really stuck this is a geo problem pls get to me as soon as possible thanks.
crimeas [40]
This might not be super helpful but it’s either 50 or 130. Sorry i haven’t done this for a while!!
5 0
2 years ago
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In one baseball season, Peter hit twice the difference of the number of home runs Alice hit and 6. Altogether, they hit 18 home
saw5 [17]
Below is the solution:

There are two equations to be solved here.  The first one we assign variables to the home runs Peter hits, P, and Alice hits, A. P=2*(A-6) The second equation is the sum of both players home runs.P + A = 18Solving for P yieldsP=18-A We substitute the solution for P into the first equation and solve for A.(18-A) = 2*(A-6)18 - A = 2A - 123A = 30A = 10 Now that A is known, we can plug it into either equations for P to find how many home runs Peter hitsP=18 - (10) = 8orP=2((10)-4) = 8
7 0
3 years ago
Find an equation in standard form of the parabola passing through these points: (0,-6),(-1,-12),(3,0)
Elan Coil [88]
One form of the equation of a parabola is
y = ax² + bx + c

The curve passes through (0,-6), (-1,-12) and (3,0). Therefore
c = - 6                       (1)
a - b + c = -12            (2)
9a + 3b + c = 0         (3)

Substitute (1) into (2) and into (3).
a - b -6 = -12
a - b = -6                  (4)
9a + 3b - 6 = 0
9a + 3b = 6              (5)

Substitute a = b - 6 from (4) into (5).
9(b - 6) + 3b = 6
12b - 54 = 6
12b = 60
b = 5
a = b - 6 = -1

The equation is
y = -x² + 5x - 6 

Let us use completing the square to write the equation in standard form for a parabola.
y = -[x² - 5x] - 6
   = -[ (x - 2.5)² - 2.5²] - 6
   = -(x - 2.5)² + 6.25 - 6

y = -(x - 2.5)² + 0.25
This is the standdard form of the equation for the parabola.
The vertex us at (2.5, 0.25).
The axis of symmetry is x = 2.5
Because the leading coefficient is -1 (negative), the curve opens downward.
The graph is shown below.

Answer: y = -(x - 2.5)² + 0.25

3 0
3 years ago
What is the answer to 6(x+4)=30
DanielleElmas [232]

Start by distributing the 6 through the parenthses on the left side.

So we have 6x + 24 = 30.

Solving from here, I would subtract 24 from both sides to get 6x = 6.

Finally, dividing both sides of the equation by 6, we have x = 1.

6 0
3 years ago
Read 2 more answers
Suppose the first term of a geometric sequence is multiplied by a nonzero constant, c. What happens to the following terms in th
ratelena [41]
The next  terms in the sequence will be multiplied by c, but the common ratio is still the same

example :

S = [1(3)^4 - 1]/ [3-1]  = 80/2 - 40

Hope this helps
6 0
3 years ago
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