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irinina [24]
3 years ago
10

Help me with an answer i'm bad doing maths​

Mathematics
2 answers:
kow [346]3 years ago
7 0

Answer:

3(x+5)=3x+a

3x+15=3x+a

a=3x-3x+15

<em>a=+15</em> ........ans

levacccp [35]3 years ago
6 0

Answer:

3(x+5)≡3x +a

3x + 15≡ 3x +a ⇒ a=15

I hope you understood!

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235+123= solve using a number line
Agata [3.3K]
The answer is 358....
5 0
3 years ago
Find an equation of a sphere if one of its diameters has endpoints (3, 2, 5) and (5, 6, 7). Incorrect: your answer is incorrect.
prohojiy [21]

use midpoint equation

radius = distance between midpoint and one of the endpoints.

midpoint: (3+5)/2, (2+6)/2, (5+7)/2 = (4,4,6)

equation of sphere: (x-4)^2 + (y-4)^2 + (z-6)^2 = r^2

square distance between midpoint and one of the endpoints.

r^2 = 6

Equation: (x-4)^2 + (y-4)^2 + (z-6)^2 = 6

3 0
3 years ago
A triangle has one side that measures 4x and two sides that measure x + 5 each. Write an
Tamiku [17]
P = 4x + 2(x + 5)
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5 0
3 years ago
Obtain an estimate for the following computation by rounding the numbers so that the resulting arithmetic can easily be performe
uranmaximum [27]

Answer:

Step-by-step explanation:

2915 can stay as it is; 15.458 should be rounded down to 15.  Then we have

2915-15, or 2900 (which is a very reasonable estimate).

3 0
3 years ago
Which of the following functions is quadratic?
madam [21]

Answer:

f(x)=3(x-4)(x+3)

Step-by-step explanation:

Quadratic function follows the f(x) = ax^2 +bx+c pattern

f(x)=3(x-4)(x+3) after multiplying out is equal to

f(x)=(3x-12)(x+3) = (3x^2+9x-12x-36) = (3x^2-3x-36)

f(x) = (3x^2-3x-36)

where

a = 3

b = -3

c = -36

7 0
3 years ago
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