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goblinko [34]
3 years ago
13

If you can just help me with one question it would help very very much:)

Mathematics
1 answer:
Soloha48 [4]3 years ago
6 0
1) a.30
3) complementary: 12 and 78
supplementary: 102 and 78
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a table and 8 chairs weigh 235.68lb together if the table weighs 157.84 lb, what is the weight of one chair in pounds
atroni [7]

Answer:

9.73 lb

Step-by-step explanation:

The total together is 235.68 lb.  Taking away the weight of the table, 157.84, we are left with

235.68-157.84 = 77.84 for the weight of all of the chairs.  Dividing this by 8 gives us the weight of one chair:

77.84/8 = 9.73

7 0
3 years ago
Read 2 more answers
If y=-x+1 and y=3x+1, what is the numerical value of (3x+y)
sukhopar [10]

Add the 2 equations together

y = -x+1

y  =3x+1

========

2y = 2x+2

divide by 2

y = x+1


y = x+1

y = -x+1

=======    add these two equations together

2y = 2      divide by 2

y = 1

y = x+1

1 = x+1

x=0

3x+y=3(0) +1=1

Answer =1

6 0
3 years ago
Write a quadratic function for each graph described.
user100 [1]

Answer:

y=2x^2-\frac{4}{3}x-\frac{10}{3}

Step-by-step explanation:

we know that

The roots of the quadratic function (x-intercepts) are

x=-1 and x=5/3

so

we can write the equation of the parabola as

y=a(x+1)(x-\frac{5}{3})

where

a is a coefficient

Remember that

The parabola pass through the point (5,40)

substitute the value of x and the value of y of the ordered pair in the quadratic equation and solve for a

x=5, y=40

40=a(5+1)(5-\frac{5}{3})

40=a(6)(\frac{10}{3})

40=20a\\a=2

substitute

y=2(x+1)(x-\frac{5}{3})

apply distributive property

y=2(x^2-\frac{5}{3}x+x-\frac{5}{3})\\\\y=2(x^2-\frac{2}{3}x-\frac{5}{3})\\\\y=2x^2-\frac{4}{3}x-\frac{10}{3}

see the attached figure to better understand the problem

6 0
3 years ago
Christens Toy Store is selling a hula hoop with a diameter of two feet. What is the hula hoops radius?
riadik2000 [5.3K]

Answer:

r = 1 ft

Step-by-step explanation:

Using the formula

d=2r

Solving for

r = d/2 = 2/2 = 1 ft

4 0
3 years ago
A manufacturer of bottled tea runs a promotion, where consumers can win a free bottle of tea if the cap of the bottle says "Winn
I am Lyosha [343]

Answer:

A

Step-by-step explanation:

8 0
3 years ago
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