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Serjik [45]
3 years ago
13

Equation : a^2 + ( 2b - c) x d, solve for a=2, b=5, c=8, and d=4!! help pls and work

Mathematics
1 answer:
mixas84 [53]3 years ago
4 0
The first step for solving this expression is to insert the numbers for a, b, c, and d. This will change the expression to the following:
2² + (2(5) - 8) x 4
Now we need to evaluate the power of the first number.
4 + (2(5) - 8) x 4
Next you'll multiply the first two numbers in the parenthesis together.
4 + (10 - 8) x 4
Subtract the numbers in the parenthesis
4 + 2 x 4
Now multiply the two numbers together (remember PEMDAS)
4 + 8
Finally,, add the two numbers together to get your final answer.
12
This means that the correct answer to your question is going to be 12.
Let me know if you have any further questions
:)
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Step-by-step explanation:

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Lourdes is making a frame in the shape of a parallelogram. She adds diagonal braces to strengthen the frame. How long is the bra
morpeh [17]

The complete question is;

Lourdes is making a frame in the shape of a parallelogram. She adds diagonal braces to strengthen the frame. Parallelogram A B C D is shown. Diagonals are drawn from point A to point C and from point D to point B and intersect at point E. The length of D E is (3 y + 6) centimeters, the length of E B is (5 y minus 10) centimeters, and the length of E C is (2 y + 4) centimeters. How long is the brace that connects points B and D? 8 cm 16 cm 30 cm 60 cm

Answer:

60 cm. Option D is the correct answer

Step-by-step explanation:

From the image, the diagonals of the parallelogram bisect each other. Thus;

AE = EC and BE = ED

We are given that;

DE = 3y + 6 cm and BE = 5y - 10 cm, thus;

3y + 6 = 5y - 10

Rearranging, we have;

5y - 3y = 6 + 10

2y = 16

y = 16/2

y = 8 cm

The brace that bisects point B and D is BD. So, BD = BE + DE

So, BD = 5y - 10 + 3y + 6

BD = 8y - 4

Putting 8 for y to obtain;

BD = 8(8) - 4

BD = 64 - 4

BD = 60cm

8 0
3 years ago
The lesson is 19.2 Angles in inscribed Quadrilaterals
alexdok [17]

Answer:

m<R=44.9,m<S=56.9,m<T=44.9,m<U= 32.9.

Step-by-step explanation:

When two chords are equal then the measure of the arcs are equal.

Chord RU= Chord UT

Or , m arc RU= m arc UT,

3z-4=x+2z+7   Or             z=x+11

Chord RS=Chord ST ,

m arc RS=m arc ST=3x+5

Sum of m arc in a circle =360 degrees.

Or ,

3x+5+3x+5+3z-4+x+2z+7=360

7x+5z+13=360

Substituting z=x+11

7x+5(x+11)+13=360

7x+5x+55+13=360

12x+68=360

12x=292,x=24.3

z=x+11=11+24.3=34.3

m arc RU=marc UT= 3z-4=3(24.3)-4=69

m arc RS =marc ST= 3x+5=3(24..3)+5=77.9

m<R= (marc UT+ m  arc ST)÷2

m<R=(69+77.9)÷2=73.45

m<S= (m arc RU+m arc UT)÷2

m<S= (69+69)÷2=69

m<T=(m arc RU+m arc RS)÷2=73.45

m<U=(m arc RS+m arc m arc ST)÷2=77.9








4 0
3 years ago
What is the value of p in 8-5P=2-3P? And pls explain
lana [24]
8 - 5p = 2 - 3p
Move the terms

= -5p + 3p = 2-8
Collect like terms (calculate)

= -2p = -6
Divide both sides

p = 3 (Final Answer)
8 0
3 years ago
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