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Alina [70]
2 years ago
6

Find the sum of -3x^2-x-10 and 10x^2+x-10

Mathematics
2 answers:
Jobisdone [24]2 years ago
6 0

Answer:

7x^2-20

Step-by-step explanation:

Dvinal [7]2 years ago
5 0

Answer:

1.<em> -2</em>

<em>2.-10</em>

Step-by-step explanation:

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Jack and Jill both ordered pizzas from Wayne's Pizza for their parties. Jack paid $58.50 for 3 pepperoni pizzas and 2 plain pizz
just olya [345]

Answer:

A plain pizza is $10.50 and a pepperoni pizza is $12.50

Step-by-step explanation:

Create a system of equations where x is the price of a pepperoni pizza and y is the price of a plain pizza:

3x + 2y = 58.5

2x + 4y = 67

Solve by elimination by multiplying the top equation by -2:

-6x - 4y = -117

2x + 4y = 67

Add these together and solve for x:

-4x = -50

x = 12.5

So, a pepperoni pizza is $12.50. Plug in 12.5 as x into one of the equations, and solve for y:

2x + 4y = 67

2(12.5) + 4y = 67

25 + 4y = 67

4y = 42

y = 10.5

So, a plain pizza is $10.50.

A plain pizza is $10.50 and a pepperoni pizza is $12.50

8 0
2 years ago
What are the explicit equation and domain for a geometric sequence with a first term of 4 and a second term of −12?
Lerok [7]
a_1=4;\ a_2=-12\\\\r=\dfrac{a_2}{a_1}\to r=\dfrac{-12}{4}=-3

The formula of a geometric sequence:

a_n=a_1\cdot r^{n-1}

substitute

a_n=4\cdot(-3)^{n-1}

The\ domain:\ \text{all integers where}\ n\geq1

Answer: \boxed{a_n=4(-3)^{n-1};\ \text{all integers where}\ n\geq1}
4 0
3 years ago
PLEASE HURRY WILL MARK ANSWER AS BRAINLIEST!!!
WITCHER [35]

Answer:

112

Step-by-step explanation:

5 0
3 years ago
3/5 = 12/x find the missing numbers in the equivalent ratios
pogonyaev

Answer:

x=20

Step-by-step explanation:

Well just cross multiply if its easier

x(3)=3x

12*5=60

60=3x

x=20

4 0
2 years ago
Read 2 more answers
What is 97,000 in scientific notation?
lianna [129]

Answer:

9.7 * 10 to power of 4

Step-by-step explanation:

7 0
2 years ago
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