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aalyn [17]
3 years ago
10

The sum of 1 and 3 times a number is 22. write and solve and equation to determine the number. select the solution and graph tha

t represents the number
a) x=4

b) x=6

c) x=7

d) x=9
Mathematics
1 answer:
ahrayia [7]3 years ago
7 0

Answer:

b

Step-by-step explanation:

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These are all my points I'm desperate please help I've posted this 4 other times
Juliette [100K]

Answer:

y = (x+3)^2 -1

Step-by-step explanation:

The vertex form of the equation is

y = a(x-h)^2 +k  where (h,k) is the vertex

The vertex is (-3,-1)

y = a(x- -3)^2 -1

y = a(x+3)^2 -1

Pick another point  (-2,0) and substitute it into the equation

0 = a(-2+3)^2 -1  to find a

0 =a(1)^2 -1

0 = a-1

1 = a

y = (x+3)^2 -1

8 0
3 years ago
Read 2 more answers
Given cos A = 0.25 find angle A in degrees. Round your answer to the nearest hundredth.
Fantom [35]
We have that
cos A=0.25
so
A=arc cos (0.25)-------> using a calculator----> A=75.5225°
Round to the nearest hundredth-----> A=75.52²

the answer is
the option <span>75.52°</span>
8 0
3 years ago
For what values of x and y must ABCD be a parallelogram?
n200080 [17]
<h2>x^{\circ}=21^{\circ} \ and \ y^{\circ}=39^{\circ}</h2>

Step-by-step explanation:

We know that vertically opposite angles of a parallelogram are equal .

\angle ABC =\angle ADC\ and \ \angle BAD = \angle DAC

⇒3x^{\circ}=(4x-21)^{\circ} \ and \ 3y^{\circ}=(y+78)^{\circ}

⇒3x^{\circ}-4x^{\circ}=-21^{\circ} \ and \ 3y^{\circ}-y^{\circ}=78^{\circ}

⇒-x^{\circ}=-21^{\circ} \ and \ 2y^{\circ}=78^{\circ}

⇒x^{\circ}=21^{\circ} \ and \ y^{\circ}=39^{\circ}

7 0
4 years ago
Someone pls help me <br><br> A- (a-b,c)<br><br> B- (b,c)<br><br> C- (a,c)<br><br> D- (a+b,c)
zepelin [54]
B is the answer maybe
8 0
3 years ago
Simply the expression (4-2i)-(-1+3i)
Arisa [49]

Answer:

224

Step-by-step explanation:

7 0
3 years ago
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