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Gekata [30.6K]
3 years ago
9

Geometry helpffffffffffff

Mathematics
1 answer:
IRISSAK [1]3 years ago
6 0

Answer:

x=-8

Step-by-step explanation:

First you should add 5x+67 and 5x+61 together which is 10x+128

Then you set that equal to 3x+72 which would be: 10x+128=3x+72

After that subtract 3x from both sides which leaves you with: 7x+128=72

Then subtract 128 from 72 which gives you: 7x=-56

Then divide by 7 which gives you x equals negative eight

You might be interested in
(-3/14)+5/7hhggygwfghx
agasfer [191]

Answer:

1

Step-by-step explanation:

0.9=9/10

9/10+1/10=10/10=1

Hope this helps!

7 0
3 years ago
Stanley analyzes the table of values for a polynomial function. He has determined through applying Descartes’ rule of sign that
Rom4ik [11]

9514 1404 393

Answer:

  a) 4

  b) 3

Step-by-step explanation:

a. The total number of real and complex zeros is equal to the degree of the polynomial. That total is (1 negative real) + (3 positive real/complex) = 4 total zeros. The degree of the polynomial is 4.

The even degree is confirmed by the answer to part b, and by the end-behavior shown in the table, which has a tendency to -∞ for |x|→∞.

__

b. The intermediate value theorem tells you there will be zeros in the intervals (0, 1), (1, 2), and (2, 3) according to the values in the table. (The function changes sign in those intervals.) Thus there are 3 positive real zeros.

_____

<em>Additional comment</em>

Stanley cannot tell anything about Descartes' rule of signs by analyzing the table of function values. To use that rule, he must have terms of the polynomial. If he has those terms, he already knows the degree of the polynomial.

6 0
3 years ago
What is the area of a square with side length 2 1/10 meters
katovenus [111]

side length, a= 2 1/10

we can write it as 21/10

Now, area of square, a²= (21/10)² = (2.1)² = 4.41 m²

3 0
3 years ago
How to solve 5x(2-7x)?
Svetach [21]
<span><span> x = 7/5 = 1.400
</span><span> x = 0 </span></span>
5 0
3 years ago
(8y-1)-4[(7y+5)-3(2y-9)
alexdok [17]
8y-1-28y-20-6y+27
8y-28y-6y-1-20+27
-26y+6
8 0
3 years ago
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