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spayn [35]
3 years ago
12

Sixteen is seven plus three times a number. Find the number

Mathematics
1 answer:
Alenkinab [10]3 years ago
4 0
7 + 3 x NUMBER
the "NUMBER" is Unknown. so you have to add 7 + 3. so 7 + 3= 10. So

7 + 3 x 10= 37

The answer is: 37

Hope this helped! good luck
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What is the area of the shaded region on the graph shown?
Sindrei [870]

Answer:

As Doris Day said: Good morning to you

Answer 27/2

Step-by-step explanation:

f(x)=-x^3+5x\\F(x)=-\dfrac{x^4}{4} +\dfrac{5x^2}{2} \\F(2)=\dfrac{-16}{4}+\dfrac{20}{2}  =6\\\\F(-1)=\dfrac{-1}{4} +\frac{5}{2} =\dfrac{9}{4} \\g(x)=\dfrac{3x^2}{2}+\dfrac{x}{2}-5\\\\G(x)=\dfrac{x^3}{2}   +x^2-5x\\\\G(2)=4+1-10=-5\\\\G(-1)=\dfrac{-1}{2} +\dfrac{1}{4} +5=\dfrac{19}{4} \\\\\int\limits^2_{-1} {(f(x)-g(x))} \, dx =F(2)-G(2)-(F(-1)-G(-1))\\\\=11+\dfrac{5}{2} =\dfrac{27}{2}

5 0
3 years ago
Solve this one 0.2=x/5-1.4
Dvinal [7]

Answer:

<h2>x = 8</h2>

0.2 =  \frac{x}{5}  - 1.4

Move 1.4 to the left side of the equation

That's

0.2 + 1.4 =  \frac{x}{5}  \\  \\  \frac{x}{5}  = 1.6

Convert the decimal to fraction

That's

1.6 = 8/5

\frac{x}{5}  =  \frac{8}{5}

Multiply through by 5

We have

\frac{x}{5}  \times 5 =  \frac{8}{5}  \times 5 \\  \\  \\ x = 8

Hope this helps you

7 0
3 years ago
Solve the quadratic equation by completing the square.
kicyunya [14]
X2 = 5.59 or x1 = 8.41 also for the top it’s the second one (x - 7)^2 = 2
7 0
2 years ago
Jayne evaluated an expression that has a value of StartFraction 1 Over 729 EndFraction. Which expression could Jayne have evalua
Paul [167]

Option b: 9^{-3}

Option c: 3^{-6}

Explanation:

The given expression is \frac{1}{729}

To determine from the options which are equivalent to the expression \frac{1}{729}

Option a: (-9)^{3}

Simplifying the expression, we have,

(-9)^{3}=-9\times-9\times-9=-729

which is not an equivalent expression to \frac{1}{729}

Hence, Option a is not the correct answer.

Option b: 9^{-3}

Simplifying the expression, we have,

9^{-3}=\frac{1}{9^{3} } =\frac{1}{729}

which is an equivalent expression to  \frac{1}{729}

Hence, Option b is the correct answer.

Option c: 3^{-6}

Simplifying the expression, we have,

3^{-6}=\frac{1}{3^{6} } =\frac{1}{729}

which is an equivalent expression to  \frac{1}{729}

Hence, Option c is the correct answer.

Option d: \left(\frac{1}{9}\right)^{-6}

Simplifying the expression, we have,

\left(\frac{1}{9}\right)^{-6}=\frac{1}{\left(\frac{1}{9}\right)^{6}}=\frac{1}{\frac{1}{531441}}=531441

which is not an equivalent expression to \frac{1}{729}

Hence, Option d is not the correct answer.

Option e: \left(\frac{1}{3}\right)^{-6}

Simplifying the expression, we have,

\left(\frac{1}{3}\right)^{-6}=\frac{1}{\left(\frac{1}{3}\right)^{6}}=\frac{1}{\frac{1}{729}}=729

which is not an equivalent expression to \frac{1}{729}

Hence, Option e is not the correct answer.

Option f: (-3)^{6}

Simplifying the expression, we have,

(-3)^{6}=-3\times-3\times-3\times-3\times-3\times-3=-729

which is not an equivalent expression to \frac{1}{729}

Hence, Option f is not the correct answer.

8 0
3 years ago
Read 2 more answers
Melissa drives 238 miles in 5 hours. What is her average rate of speed
Artist 52 [7]

Answer:

<em>47.6 miles per hour</em>

Step-by-step explanation:

238 miles divided by 5 hours = 47.6 miles per hour

4 0
3 years ago
Read 2 more answers
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