What is the inequality of the sum of 5x and 2x is at least 14

Answers

Answer 1

Answer: Hi,
Is your question is 5x+2x>=14 then
7x>=14
=>x>=14/7
=>x>=2

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A cylinder with a base diameter of x units has a volumeof x cubic units
Which statements about the cylinder are true? Select
two options
The radius of the cylinder is 2x units.
The area of the cylinder's base is wa? square units.
The area of the cylinder's base is not square units.
The height of the cylinder in 2x umijs
The height of the cylinder is 4x units.
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Answers

Answer:

The height of the cylinder in 2x units

The area of the cylinder's base is not square units.

Step-by-step explanation:

Ab + c = d solve for b

Answers

Answer:

b=(d-c)/a

Step-by-step explanation:

Ab + c = d

Subtract c from both sides

ab=d-c

Divide both sides by a

b=(d-c)/a

Answer:

Step-by-step explanation:

−

–(k + 9) – 8 = –4k – 9

Answers

$\sf-(k+9)-8=-4k-9$

Distribute -1 into the parenthesis:

$\sf-k-9-8=-4k-9$

Combine like terms:

$\sf-k-17=-4k-9$

Add 17 to both sides:

$\sf-k=-4k+8$

Add 4k to both sides:

$\sf3k=8$

Divide 3 to both sides:

$\sf~k=(8)/(3)~or~2(2)/(3)$

$-(k + 9) - 8 = -4k - 9\n-k-9-8=-4k-9\n3k=8\nk=(8)/(3)$

Leslie needs324 inches of fringe to put aroundthe edge of a tablecloth. The fringe comes inlengths of 10 yards. If Leslie buys lpackageof fringe, how many feet of fringe will shehave left over?

Answers

3 feet = 1 yard
324 inches = 27 feet = 9 yards
10 yards = 1 package of fringe
10 yards - 9 yards = 1 yard or 3 feet

1 yard 3 feet is the answer

A teacher offers her students 5 fake dollars to spend in the class store, when they get a perfect score on their math tests. If one of her students gets a perfect score on 4 of the math tests and already has 25 fake dollars, how many fake dollars, in total, does this student have to spend in the class store?

Answers

Answer:

45 fake dollar.

Step-by-step explanation:

Given: teacher offer 5 fake dollar for each perfect score in Math test.

One of Student get perfect score on 4 maths test.

Student already have 25 fake dollor.

Now, solving to find total number of fake dollar teacher offered to student.

As given teacher offer 5 dollar for each perfect score in maths test and student got perfect score on 4 maths test.

Number of fake dollar offer to the student= $Fake\ dollar\ offered\ for\ each\ perfect\ score\ *\ number\ of\ maths\ test\ with\ perfect\ score$ ∴ Number of fake dollar offered to the student= $5* 4= 20\ fake\ dollar$

We know, student already have 25 fake dollar.

Next, finding total number of fake dollar student have.

Total fake dollar student have= $fake\ dollar\ offered\ by\ teacher + fake\ dollar\ student\ already\ have$ .

Total fake dollar student have= $20+25= 45\ fake\ dollar$

Hence, student have total 45 fake dollar to spend in the class store.

Which exponential function goes through the points (1,8) and (4,64)?A) f(x)=4(2)^x

B) f(x)=2(4)^x

C) f(x)=4(2)^-x

D) f(x)=2(4)-x

Answers

Plug in (4,64) into each answer choice.

A) 4(2)^x
64 =4(2)^4
64 = 4(16)
64 = 64

Answer choice A is correct.

B) f(x) = 2(4)^x
64 = 2(4)^4
64 = 2(256)
64 ≠ 512

Answer choice B is incorrect.

C) f(x) = 4(2)^{-x}
64 = 4(2)^{-4}
64 = 4(-0.0625)
64 ≠ 0.25

Answer choice C is incorrect.

D) f(x) = 2(4)^{-x}
64 = 2(4)^{-4}
64 = 2(0.00390625)
64 ≠ 0.0078125

Answer choice D is incorrect.

Your answer is B) f(x)=2(4)^x

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