3 years ago

What is the value of d + e + f when d = 20, e = –4 and f = –2?

Mathematics

1 answer:

saw5 [17]3 years ago

5 0

20 - 4 - 2 = 14. A negative number is just like subtracting it.

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What is the midpoint of a segment (-2,-7) and (7,4)

Rasek [7]

$\bf ~~~~~~~~~~~~\textit{middle point of 2 points }
\\\\
(\stackrel{x_1}{-2}~,~\stackrel{y_1}{-7})\qquad
(\stackrel{x_2}{7}~,~\stackrel{y_2}{4})
\qquad
\left(\cfrac{ x_2 + x_1}{2}~~~ ,~~~ \cfrac{ y_2 + y_1}{2} \right)
\\\\\\
\left( \cfrac{7-2}{2}~~,~~\cfrac{4-7}{2} \right)\implies \left(\cfrac{5}{2}~,~\cfrac{-3}{2} \right)\implies \left( 2\frac{1}{2}~,~-1\frac{1}{2} \right)$

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3 years ago

4/7 divided by 7/2?????

11Alexandr11 [23.1K]

Answer:

8/49

Step-by-step explanation:

4/7 ÷7/2

Copy dot flip

4/7 * 2/7

Multiply the numerators

4*2 = 8

Multiply the denominators

7*7= 49

numerator over denominator

8/49

8 0

3 years ago

Read 2 more answers

RIGHT TRIANGLES & TRIG!!! <br> Find the value of each variable.

Ray Of Light [21]

Answer:

Z=20.785

Y=12

X=16.97056

Step-by-step explanation:

Use calculator.net to see individual steps in great detail

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3 years ago

What is the equation in slope-intercept form of a line that is perpendicular to y=13x+2 and passes through the point (3, 1)? Ent

geniusboy [140]

Answer:

y = -1/13x + 1 3/13

Step-by-step explanation:

y = 13x + 2

Perpendicular

y = -1/13x + b

Finding b:

1 = -1/13 * 3 + b

1 = -3/13 + b

1 3/13 = b

y = -1/13x + 1 3/13

Please let me know if I'm wrong :)

8 0

3 years ago

Read 2 more answers

I need with 2n-7=5n-10 also

melomori [17]

2n - 7 = 5n -10
-5n -5n
-3n - 7= -10
+7 +7
-3n = -3
-3/-3 -3/-3
n= 1

6 0

4 years ago