2 years ago

Simplify the expressions below. A. 8-13-(-4) B. 4-(-7)+(-2) C.-7+3-20

Mathematics

1 answer:

babunello [35]2 years ago

8 0

Answer:

a -9

b 9

c -24

Step-by-step explanation:

this are the answers

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What is the equation of the line that passes through the point (−8,1) and has a slope of -3/4?

Marrrta [24]

Answer:

y-1=-3/4(x+8)

Step-by-step explanation:

y=mx+b where m=slope and b=y-intercept,

y-y1=m(x-x1)

y-1=-3/4(x-(-8))

y-1=-3/4(x+8)

6 0

3 years ago

Mr. Lopez wrote the equation 32g+8g-10g=150 on the board. Four students explained how to solve for g. Alyssa: “I added 32 and 8

Vaselesa [24]

Answer:

Wilhem

Step-by-step explanation:

The given equation is

$32g+8g-10g=150$

Step 1 : Add 32g and 8g.

$(32g+8g)-10g=150$

$(32+8)g-10g=150$

$40g-10g=150$

Step 2: Subtract 10 from 40.

$(40-10)g=150$

$30g=150$

Step 3: Divide both sides by 30, find the value of g.

$\frac{30g}{30}=\frac{150}{30}$

$g=5$

The value of g is 5.

Therefore, Wilhem is correct.

7 0

2 years ago

Read 2 more answers

What is the perimeter of this figure to the nearest unit? (NO decimals. If your answer has a .5 or up, round up. If your answer

NARA [144]

Answer:

i dont see the figure

Step-by-step explanation:

hjo

6 0

2 years ago

Can somebody please help me

tekilochka [14]

To find the volume of a cylinder, the equation used is V = 3.14r^2h

r = 4, and h = 3, so we input both numbers to get V = 3.14*4^2*3

V = 3.14*4^2*3 = 3.14*16*3 = 3.14*48=150.72

V = 150.7 ft^3

7 0

3 years ago

Find two positive numbers whose product is 25 and whose sum is a minimum. (if both values are the same number, enter it into bot

pshichka [43]

Let xy = 25, x and y > 0.

$y = \frac{25}{x}$
$\text{Denote S as: } x + y$
$S(x) = x + \frac{25}{x}$

$\text{Minimum: }S'(x) = 0, S''(x) > 0$
$S'(x) = 1 - \frac{25}{x^{2}}$
$1 - \frac{25}{x^{2}} = 0$
$x^{2} = 25$
$x = 5 (x > 0)$

$S''(x) = \frac{50}{x^{3}} > 0, (x > 0)$

Thus, at x = 5, there lies a minimum summation, and this forms a square with side length of 5.

4 0

3 years ago