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Oxana [17]
2 years ago
7

Where do the equations y=-4x+8 and y=3x+1 meet

Mathematics
1 answer:
Dafna11 [192]2 years ago
7 0

Answer:

l think they meet when collecting like terms.maybe like this

y=4x8

y=3x+1

=(4×+3x)+1+8

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The half-life of chromium-51 is 28 days. If the sample contained 5.10 grams, how much chromium was present 168 days ago?
stepan [7]
I don’t understand how many grams had the first one,so I can’t help you
3 0
2 years ago
How can you check to see if a value of x is a zero of the polynomial
Mila [183]

Answer:

  substitute that value for x in the polynomial and see if it evaluates to zero

Step-by-step explanation:

A "zero" of a polynomial is a value of the polynomial's variable that make the expression become zero when it is evaluated. As an almost trivial example, consider the polynomial x-3. The value x = 3 is a zero because substituting that value for x makes the expression evaluate as zero.

  3 -3 = 0

___

Evaluating polynomials can be done different ways. Straight substitution for the variable is one way. Using synthetic division by x-a (where "a" is the value of interest) is another way. This latter method is completely equivalent to rewriting the polynomial to Horner form for evaluation.

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In the attachment, Horner Form is shown at the bottom.

6 0
3 years ago
From the figure and statement provided, select the proper TO PROVE Statement.
sergejj [24]

Answer: a is equal to b

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
A greyhound ran 425 yards in<br> 25 seconds. How fast was the<br> greyhound running?
Afina-wow [57]
17 yards per second
5 0
3 years ago
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Sofia cuts a piece of felt in the shape of a kite for an art project. The top two sides measure 20 cm each and the bottom two si
Vladimir79 [104]

Given


Sofia cuts a piece in the shape of a kite for an art project  

top two sides measure 20 cm each  

bottom two sides measure 13 cm each.  

One diagonal, EG, measures 24 cm


Find out the length of the other diagonal, DF.


To proof  

As given in the question and also shown in the diagram shown below


DE = EF = 20cm


DG = GF = 13cm


EG = 24cm


DF = ?


In kite shape


One diagonal is the perpendicular bisector of the other diagonal.


i.e EG is the perpendicular bisector of DF


i.e EG is divided into two equal parts


thus EA = AG = 12cm


in Δ EAF


By applying the pythagorus theorem


we have


EF² = FA²+ EA²


20² = 12² + FA²


400 -144 = FA²


256 =FA²


\sqrt{256} =FA


16cm = FA


Now in Δ DAG


DG² = AG² + DA²


13² = 12 ²+ DA²


169 -144 = DA²


25 = DA²


\sqrt{25} =DA


5cm = DA


Thus diagonal DF = DA + FA


= 5 + 16


= 21cm


Hence proved




8 0
2 years ago
Read 2 more answers
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