3 years ago

What is the missing length?

Mathematics

1 answer:

Kipish [7]3 years ago

4 0

Answer:

Step-by-step explanation:

89^2-39^2=6400, 6400=80^2

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(10x-20) (6x+8) what is x?

Lilit [14]

X= 2 and x= -8/6 if you make it = 0
(10x-20)(6x+8)=0
10x-20=0
10x=20
x=2
6x+8=0
6x=-8
x=-8/6

7 0

3 years ago

Let f(x) = x - 3 and g(x) = x + 11. Find f(x) · g(x).

Nady [450]

Answer:

i think its D

f(x) = x-3 and g(x) = x+11

f(x) *g(x) = (x-3)(x+11) = x^2 +11x -3x -33 = x^2 +8x -33

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3 0

3 years ago

Read 2 more answers

Please help me answer this.

Mariulka [41]

Answer:

(a) 3

Step-by-step explanation:

Calculate the slope m of the line given using the gradient formula

m = ( y₂ - y₁ ) / ( x₂ - x₁ )

with (x₁, y₁ ) = (0,3) and (x₂, y₂ ) = (3, 2)

m = $\frac{2-3}{3-0}$ = - $\frac{1}{3}$

given a line with slope m then the slope of a line perpendicular to it is

$m_{perpendicular}$ = - $\frac{1}{m}$ = - $\frac{1}{-\frac{1}{3} }$ = 3 → (a)

5 0

3 years ago

Please Help:<br> In Δ ABC, sin A= 88, sin B= 42, and a =17 , find the length of b.

enyata [817]

Answer:

11.4 units

Step-by-step explanation:

a/sinA = b/sinB

17/sin(88) = b/sin(42)

b = sin(42) × 17/sin(88)

b = 11.3821540088

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3 years ago

70% of a school budget is spent on teachers, 10% on other staff, and the rest on energy and resources. A Write the ratio of the

Vesna [10]

A) 70:10:20 = 7:1:2
b) 20/100 = 2/10 = 1/5

7 0

3 years ago