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Vika [28.1K]
4 years ago
15

I'm really bad at math!

Mathematics
2 answers:
lidiya [134]4 years ago
6 0

Answer:

i think its 5b + 45

Step-by-step explanation:

im not 100% sure what your asking for but i just distributed the -3 to the 8 and -26 and got 5b -9 -24 + 78. then i combined the like terms to get 5b + 45.

hope this helps !!

Igoryamba4 years ago
3 0

Given : (5b - 9) - 3(8 - 26)

⇒ (5b - 9) - 3(-18)

⇒ (5b - 9) + 54

⇒ 5b - 9 + 54

⇒ 5b + 45

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juin [17]

Answer:

parallelogram

Step-by-step explanation:

That's the answer....

5 0
3 years ago
Find the angle marked with the ? mark
Yuri [45]

Answer:

53 degrees

Step-by-step explanation:

Angle N = angle E

because angle made by joining end points of same chord on circumference are always equal.

so angle E = 37

Angle D = 90 ( because angle made by diameter on circumference is 90 degrees)

Now in Triangle DEC. Sum if all the angles of triangle us 180

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4 0
3 years ago
1) What are the real zeroes of x3 + 6 x2 – 9x – 54?
love history [14]
A polynomial with a degree of 3 is understood to have three zeroes or roots. In the given problem in 1, x3 + 6 x2 – 9x – 54, the roots of the polynomial using the calculator are B. B. 3, -3, -6. The same applies for number 2 given the polynomial x3 – 4x2 + 3x – 12. The answer in 2 is D. 4 years. The roots of the polynomial in 3 are: 

<span>x1=−0.45117</span>

<span><span>x2</span>=1.77474</span>

<span><span>x3</span>=0.03821+0.70576∗i</span>

<span><span><span>x4</span>=0.03821−0.70576∗i. Hence there is A. 1 negative root.</span></span>

8 0
3 years ago
Read 2 more answers
ANSWER NOW PRONTO STACKED PLSSSSSS 20 POINTS
skad [1K]

Answer:

6.7 I think

Step-by-step explanation:

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6 0
4 years ago
In a cross country marathon jack and ted ren a total of 81 kn. Ted ran 5kn farther than jack how far did each of them run?
kotegsom [21]

Answer:

Jack ran 38 km and Ted ran 43 km.

Step-by-step explanation:

Let Jack’s displacement be x

x + (x+5) = 81

2x + 5 = 81\\2x = 76

x = 38 km

x+5 = 38 + 5\\x+5 = 43km\\

3 0
4 years ago
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