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nydimaria [60]
3 years ago
7

(3x² - 4x+8) + (-7² - 27-8)

Mathematics
1 answer:
iragen [17]3 years ago
4 0

Answer:

3x^ - 4x - 76

Step-by-step explanation:

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If 75% is £45 what is the full cost
lyudmila [28]
45 is 75% of what?

45 is 75% of X

Equation: Y = P% * X

Solving our equation for X
X = Y/P%
X = 45/75%

Converting percent to decimal:
p = 75%/100 = 0.75

<span>X = 45/0.75 </span>
<span>X = 60


Hope I helped!

Let me know if you need anything else!

~ Zoe</span>
7 0
3 years ago
The measures of two sides of a triangle are 7.3 centimeters and 2.94 centimeters. The triangle's perimeter is 14.8 centimeters.
evablogger [386]
The perimeter is the sum of all lengths of the side of a polygon. For a triangle it is expressed as:

P = a + b + c

We let a = 7.3, b = 2.94 and c=x

Therefore, the perimeter of the given triangle is:

14.8 = 7.3 + 2.94 + x

From the options given, the correct answer is the last option. The expression, <span>x - 14.8 = 2.94 + 7.3, will give an erroneous value of the third side. It will be more than the perimeter given.</span>
3 0
3 years ago
Use substitution. What is the solution to the system of equations? Use the drop-down menus to explain your answer.
Hoochie [10]

Answer:

The system of equations has one solution. The two equations are intersecting lines.

Step-by-step explanation:

if you want to use the substitution method, you would have to plug in y for 12x+2 in the second equation.

2(12x+2)=x+4

next, you have to distribute

24x+4=x+4

subtract 24x from each side

4=-23x+4

subtract 4 from each side

0=23x

divide each side by 23

x=0

now, plug in 0 to one equation.

y=12(0)+2

y=2

the lines intersect at one point, (0,2)

7 0
3 years ago
Section 2 Topic 3 Homework
VMariaS [17]

Answer:

65$

Step-by-step explanation:

Section 2 Topic 3 Homework

Question 2 of 4

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on whether the book is hardcover or paperback. It charges $2 less for paperback books than for hardcover books. What is the price for

hardcover books?

4 0
3 years ago
Tres veces un número x, restado de 18 es menor que -90
andrey2020 [161]
The answer is linked below
8 0
3 years ago
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