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3 years ago

(A)+(B)=8 I need help for this question please, and thanks. :) 10 pts!!

Mathematics

1 answer:

Monica [59]3 years ago

7 0

You haven't included enough information for the question, but assuming that a and b are the same then a is 4 and b is 4

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What is the value of s in the equation 3r = 10 + 5s, when r = 10

Bad White [126]

3r = 10 + 5s , r = 10
plug in the value of "r" into the equation:
3(10) = 10 +5s
30 = 10 + 5s
subtract 10 from both sides:
20 = 5s
divide both sides by 5:
4 = s
s = 4

8 0

3 years ago

What is the vertex of the quadratic function f(x) = (x – 8)(x – 2)?

LekaFEV [45]

Something funny is that the x value of the vertex lies directl in the middle of the x intercepts
so
we see the x intercepts or 0's at x=8 and 2
the average is x=5
so find f(5) to find the y value of the vertex
f(5)=(5-8)(5-2)
f(5)=(-3)(3)
f(5)=-9

vertex is at (5,-9)

the actual way the teacher wants is to expand then compltete the square to get into the form f(x)=a(x-h)^2+k where the vertex is (h,k)
but whatever

verrtex is at (5,-9)

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3 years ago

Help i give 5 stars and a crown

REY [17]

Answer:

See below.

Step-by-step explanation:

1a)

Angles:

48, 90, 90, a.

Add:

48 + 90
= 138 + 90
= 228

Subtract:

360 - 228
= 132.

Angle a: 132.

1b)

To get angle h above 180°, We need to add h + 164:

h + 164
= 110 + 164
= 274.

h = 110.

This is how to get h over 180°.

6 0

2 years ago

Larry scored 10 points less than 3 times the number of points that Ross scored. Larry scored 10 points. How many points did Ross

densk [106]

The answer is 20. you'll have to multiply 10 times 3 and get 30. Then you'll subtract the 10 from the 30 and get 20

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3 years ago

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Examine the system of equations.

Pachacha [2.7K]

Step-by-step explanation:

The lines have different slopes

.......,............

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2 years ago