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slava [35]
3 years ago
7

PLEASEEEE HELP THANK YOU!!!

Mathematics
1 answer:
Temka [501]3 years ago
6 0

Answer:

- 4 < x ≤ 7

Step-by-step explanation:

Given

- 10 ≤ - 5x + 25 < 45 ( subtract 25 from all 3 intervals )

- 35 ≤ - 5x < 20

Divide all 3 intervals by - 5, reversing the inequality signs as a consequence.

7 ≥ x > - 4

Hence - 4 < x ≤ 7

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In the function f(x) = 6x + b, what must be the value of b, if f(5) = 1?
Brut [27]
<h3>Answer:    -29</h3>

=============================================

Work Shown:

f(x) = 6x + b

f(5) = 6(5) + b .... replace every x with 5

f(5) = 30 + b

1 = 30 + b ..... replace f(5) with 1, since f(5) = 1 was given.

1-30 = 30 + b - 30 .... subtract 30 from both sides

-29 = b

b = -29

-----------

The function f(x) = 6x+b turns into f(x) = 6x+(-29) which is equivalent to f(x) = 6x-29

Plugging in x = 5 leads to

f(x) = 6x-29

f(5) = 6(5) - 29

f(5) = 30 - 29

f(5) = 1

So we have confirmed the answer.

5 0
3 years ago
Read 2 more answers
Find all the real cube roots of 0.000027
Anna35 [415]
0.03 and -0.03 
asdfghjkl
6 0
3 years ago
Read 2 more answers
A rectangular prism has a base with an area of 16 centimeters. A box with a volume of 320 cubric centimeters can hold 4 of the r
Dmitry [639]

The height of the rectangular prism is 5 cm

The rectangular prism has a base area of 16 cm².

<h3>Volume of rectangular prism;</h3>
  • V = base area × height

Therefore,

V = 16h

where

h = height of the rectangular prism

Another box has a volume of 320 cm³ and holds 4 of the rectangular prism with no extra space.

Therefore,

4(16h) = 320

64h = 320

divide both sides by 64

64h / 64 = 320 / 64

h = 5

Therefore, the height of the rectangular prism is 5 cm

learn more on rectangular prism here: brainly.com/question/26187572

5 0
3 years ago
I need help I don’t understand! <br> What’s is the value of X?<br> A.58<br> B.62<br> C.65<br> D.68
natali 33 [55]

Answer:

B.62 is what I got for the answer

7 0
4 years ago
Please help me for this question
Nezavi [6.7K]

Answer:

Mid-point: (0,-5)

Equation: y=\frac{7}{3}x-5

Step-by-step explanation:

To find the mid-point of AB, simply add up their x and y coordinates and divide by 2 respectively to find their middle point.

(\frac{{x__A}+{x__B}}{2},\frac{{y__A}+{y__B}}{2})

(\frac{{-7}+{7}}{2},\frac{{-2}+{(-8)}}{2})

(0,-5)

To find the perpendicular slope that passes through the mid-point, we need to know the slope between AB first.

Slope of AB: \frac{{y__2}-{y__1}}{{x__2}-{x__1}} = \frac{{-8}-{-2)}}{{7}-{(-7)}} = \frac{-6}{14} = \frac{-3}{7}

Multiplying slopes that are perpendicular with each other always results in -1.

\frac{-3}{7}*m = -1

m=\frac{7}{3}

By the point slope form:

({y}-{y__1})=m({x}-{x__1})

Plug in the coordinates of the mid-point:

({y}-{(-5)})=\frac{7}{3} ({x}-{0})

Equation: y=\frac{7}{3}x-5

6 0
3 years ago
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