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Furkat [3]
4 years ago
10

Five less than twice what negative number squared is 157?

Mathematics
1 answer:
fenix001 [56]4 years ago
3 0
Five less than twice what negative number squared is 157 <- put into an expression
-5 + 2(-x^2) = 157
Now simplify:
-5 + -2x^2 = 157
-2x^2 = 162
-2x^2 - 162 = 0
2x^2 + 162 = 0
x^2 + 81 = 0

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Given polygon ABCD with coordinates A(-2,1),B(0,3),C(1,-4),D(-1,-1), if polygon ABCD is rotated 90 degree angle counterclockwise
AVprozaik [17]

I dont know sorry man

4 0
4 years ago
Please solve these step-by-step!!
Ierofanga [76]

Answer:

For D. X= 3, or 0 but probably not 0

For the 2nd picture you sent,  x= -2, or -3

Step-by-step explanation:

So for D. you want to make sure you only have 1 Variable, and since we know y=x squared + 7x+5, we subsitute y for what it is equal to.

Then we refine the question, which takes it out to

x squared-3x+5=5 (because the 7x-10x = 3x)

We subtract 5 from both sides which leaves us with x Squared - 3x= 0

Which we then solve with the Quadratic formula. and we separate the solutions to get the different answers for 3, and 0

3 0
3 years ago
Can somebody help me please thank you
Marianna [84]

Answer:

1. WILL BE DREAMING

2. AM CLIMBING

3. WAS RECORDING

WILL BE PRESENTING

5. VERB = REHEARSING

THE ACTORS WILL BE REHEARSING

6. VERB= PRACTICING

THE BAND WILL BE PRACTICING A SONG

7. VERB= WRITING

KIM AND FABIO WILL BE WRITING THE PROGRAM

8. VERB=DESIGNING

MR.CLARK WILL BE DESIGNING A POSTER

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
The set of all numbers greater than or equal to 0 and less than 1.
Gnoma [55]

Combining the inequality expression will give 0≤x<1.

<h3 /><h3>Sets and inteerval notation.</h3>

From the given information, we are to express the statement the set of all numbers greater than or equal to 0 and less than 1 in interval notation.

Let the unknown values b represented as "x"

The statement "the set of all numbers greater than or equal to 0 and less than 1" can be written as x≥ 0 and x < 1.

Combining the inequality expression will give 0≤x<1.

Learn more on inequality here: brainly.com/question/24372553

4 0
3 years ago
From 1970 to 1980, the consumer price index (CPI) increased from 38.8 to 82.4. If a dozen eggs cost $0.25 in 1970 and the price
Ganezh [65]
Understanding the Question
This may not be the actual way that the US government prepares the CPI, but it will provide a comparison. 

You can set up a proportion. The base number for the CPI is 38.8 in 1970. That number (38.8) has more than doubled to get to 82.4, which also tells us that there was inflation. What your parents and grandparents bought in 1970 went to double the amount in 1980. Gasoline certainly did that.

Givens
CPI in 1970 = 38.8
CPI in 1980 = 82.4
Eggs 1970 =  0.25
Edgs 1980 = X

Formula substitution and solution
CPI 1970 / CPI 1980 = cost of eggs 1970 / cost of eggs 1980
38.8/82.4 = 0.25 / x Cross multiply
38.8 * x = 0.25 * 82.4
38.8 * x = 20.625
x = 20.628 /38.8
x = 0.53 dollars of 53 cents.

53 cents in 1980 which is slightly double as predicted.

Footnote
As a matter of interest, my wife tells me that eggs now cost about 3.58 where we live. That's almost 7 times as expensive as they were in 1980. Something to think about. By the way, the price quoted is in Canada.
7 0
3 years ago
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