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2 years ago

Help me pls I kind of confused

Mathematics

2 answers:

Sunny_sXe [5.5K]2 years ago

4 0

Ok so basically you have to anahajahabdbnxnxkskalakand

NemiM [27]2 years ago

3 0

Basically u have to try hard SO U DO IT!!

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Which steps can be taken to translate the phrase “the height of a tree is increased by seven inches” into an algebraic expressio

borishaifa [10]

Answer:

Replace “the height of a tree” with a variable, x

Replace “increased by” with an addition symbol

Replace “seven inches” with the number 7.

Write the expression X + 7

Step-by-step explanation:

we have the phrase

“The height of a tree is increased by seven inches”

Let

x------> the height of a tree

1) Replace “the height of a tree” with a variable, x

2) Replace “increased by” with an addition symbol (+)

3) Replace “seven inches” with 7.

4) Write the expression X + 7

therefore

The algebraic expression is

$X+7$

6 0

3 years ago

Read 2 more answers

75,000 live bacteria are present in a culture in a flask. When an antibiotic is added to the culture, the number of live bacteri

Veronika [31]

N = 75,000*(1/2)^(h/4) . . . . N = number alive; h = hours

3000 = 75000*(1/2)^(h/4) . . . . . substitute given numbers
1/25 = (1/2)^(h/4) . . . . . . . . . . . . . .divide by 75000
log(1/25) = (h/4)*log(1/2) . . . . . . . take the log, then divide by the coefficient of x
h = 4*log(1/25)/log(1/2) ≈ 18.6 . . . . hours

___
Of course log(1/25) = -log(25) = -2log(5), so the expression for h can be written as h = 8log(5)/log(2)

8 0

3 years ago

Which of the following best describes the slope of the line below?

nikitadnepr [17]

Hi, please link an image or describe so we can help!

4 0

3 years ago

The area of the conference table in Mr. Nathan’s office must be no more that 175 ft^2. If the length of the table is 18 ft more

hodyreva [135]

Answer:

(0, 7]

Step-by-step explanation:

Let's call the width W and the length L. The length is 18 feet more than the width, so:

L = W + 18

The area can be no more than 175, so:

A ≤ 175

LW ≤ 175

Since L = W + 18:

(W + 18) W ≤ 175

W² + 18W ≤ 175

W² + 18W - 175 ≤ 0

(W - 7) (W + 25) ≤ 0

-25 ≤ W ≤ 7

However, the width of the table can't be nonpositive, so:

0 < W ≤ 7

Or in interval notation, (0, 7].

6 0

3 years ago

Please help me with this. It makes no sense to me.

lara [203]

Answer:

Step-by-step explanation:

<8 and <5 are vertical angles

6 0

3 years ago