3 years ago

The product of 8 and a number of x

Mathematics

1 answer:

Vilka [71]3 years ago

3 0

Answer:

8(x+3)

Step-by-step explanation:

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I need help please!

Sophie [7]

Answer/Step-by-step explanation:

Area of trapezium = ½*(AD + BC)*AB

Area = 42 cm²

AD = (x + 8) cm

BC = (x + 5) cm

AB = x cm

Plug in the values into the equation

42 = ½((x + 8) + (x + 5))*x

42 = ½((x + 8 + x + 5)*x

42 = ½(2x + 13)*x

Multiply both sides by 2

42*2 = (2x + 13)*x

84 = 2x² + 13x

2x² + 13x = 84

Subtract both sides by 84

2x² + 13x - 84 = 0

4 0

3 years ago

Can some one help me with this will give brainliest

a_sh-v [17]

The first one would be C and the 2nd is A.

7 0

3 years ago

How do you get an equation in slope intercept form through the points (-1,-2) and (1,4)

Sever21 [200]

(4+2)/(1+1)= 6/2= 3 is the slope

y + 2 = 3(x + 1)
y+2=3x+3
y= 3x+1

6 0

3 years ago

A sailboat traveled 30 miles in 2.5 hours. At the same speed, how far can the boat sail in another 4.5 hours ?

Ivanshal [37]

54 miles

using the formula

speed = $\frac{distance}{time}$ = $\frac{30}{2.5}$ = 12 mph

continuing at 12 mph then

distance = speed × time = 12 × 4.5 = 54 miles

8 0

3 years ago

Reeeeeeeeeeeeeeeeeeee

Juliette [100K]

start by writing the multiplication in this form

start multiplying from right to left.

$3\cdot0=0$

write the first number down

continue by multiplying the next number from right to left

$8\cdot3=24$

write the number down, since there are no more numbers to multiply for write the wole number

this means that

$80\cdot3=240$

5 0

1 year ago