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marissa [1.9K]
3 years ago
7

Which of the following technologies was a reason for t

Mathematics
2 answers:
Arturiano [62]3 years ago
6 0
Idyfhfhghhvhcuu hi bunch mjchfy
nikklg [1K]3 years ago
5 0

Answer:

D: Radio

Step-by-step explanation:

The radio was the main source of entertainment during the 1920's

(and i j got it right)

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Show your work” below and solve the given equation for x showing all your steps.
mixas84 [53]

Answer:

<em>x=</em><em>-</em><em>1</em><em>3</em>

Step-by-step explanation:

21-3.5x+14=7-7.5x-24

21+14-3.5x=7-24-7.5x

35-3.5x=-17-7.5x

35+17=3.5x-7.5x

<u>5</u><u>2</u>=<u>-4x</u>

-4. -4

x=-13

4 0
3 years ago
a right triangle has a hypotenuse of 58 cm, with legs that differ by 2 cm. find the length of each leg
nika2105 [10]

Answer:

40 cm and 42 cm

Step-by-step explanation:

Two leg length: x and x+2

x² + (x+2)² = 58²

2x² + 4x + 4 = 3364

2x² + 4x - 3360 = 0

(x+42) (x-40) = 0

leg length is a positive number so x = 40

another leg = 42

7 0
3 years ago
Gabriel is making a mixture of compost and soil to use for a special plan he wants his final mix to be two part compost to 10 pa
kkurt [141]
Ten is mistakenly written by Tim in question.
Gabriel is making a mixture of compost and soil. In which he wants to mix 2 part compost to 10 parts potting soil. And he wants to end up with ten kilogram
It means compost is 2 pars out of 12 and potting soil is 10 parts out of 12
so, (2 / 12) x 10 kilogram of compost is used
= 1.66667 kilogram of compost Gabriel should use.

8 0
3 years ago
7.) Plumbers earn $160 a day and plumbers' helpers earn $100 a day. Twenty
9966 [12]

Answer:

Step-by-step explanation:

p and h are number of plumbers and helpers, respectively.

Twenty workers earn a total of $2600

p+h = 20

h = 20-p

160p + 100h = 2600

160p + 100(20-p) = 2600

60p = 600

p = 10

h = 20-p = 10

Ten plumbers and ten helpers.

6 0
3 years ago
I need help with this ​
Jet001 [13]

Answer:

it would be C.

Step-by-step explanation:

Solve the equation for  x  by finding  a ,  b , and  c  of the quadratic then applying the quadratic formula.

6 0
3 years ago
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