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3 years ago

Triple 9, then multiply 7 by the result in an EXPREESION.

Mathematics

2 answers:

VikaD [51]3 years ago

5 0

Answer:

27 x 7=X

Step-by-step explanation:

Gala2k [10]3 years ago

3 0

Answer:

Step-by-step explanation:

7+7+7=21*7=147

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If 7.29 ÷ 9 = 0.81, then the quotient of 7.29 ÷ 90 is _________________. Use place value reasoning to explain the placement of t

daser333 [38]

Answer:

0.081

Step-by-step explanation:

Given that

7.29/9 = 0.81

Then we have ti find 7.29/90

We know that

1/10 =0.1

1/100 = 0.01

Here digits are same only 9 is replace by 90.

So we can say that

7.29/90=0.081

As we know that

x) Z ( y

P is remainder

y is quotient.

3 0

3 years ago

The area of a square is 160x^5y^2. What is the length of one side?

Aleksandr [31]

------------------------------------------------------------------
Formula of area of square
------------------------------------------------------------------
Area of square = Length x Length
Area of square = Length2

------------------------------------------------------------------
Given information
------------------------------------------------------------------
Area of square = $160x^5y^2$

------------------------------------------------------------------
Find length
------------------------------------------------------------------
$length^2 = 160x^5y^2$
$length = \sqrt{160x^5y^2}$
$length = 4y\sqrt{10x^5}$

-----------------------------------------------------------------
$\Longrightarrow \ Answer: \boxed {\boxed{ 4y\sqrt{10x^5} }}
$
-----------------------------------------------------------------

5 0

3 years ago

Sofia measured a line to be 8.9 inches long. If the actual length of the line is 8.7 inches, then what was the percent error of

Lelu [443]

Answer:

2.2%

Step-by-step explanation:

Use the percent error formula:

% error = | (approx - exact) ÷ approx | x 100

Plug in the approx. and exact values:

| (8.9 - 8.7) ÷ 8.9 | x 100

| (0.2) ÷ 8.9 | x 100

= 2.2

So, the percent error is 2.2%

3 0

3 years ago

Can someone help me with this square root problem?

Nina [5.8K]

Answer:

200

Step-by-step explanation:

11^2+10^2=x^2

121+100=x^2

221=x

nearest 100th would be 200

4 0

3 years ago

The path of a projectile launched from a 16-ft-tall tower is modeled by the equation y = −16t2 + 64t +16. What is the maximum he

Aleks04 [339]

Answer:

Step-by-step explanation:

Given the path of a projectile launched from a 16-ft-tall tower modeled by the equation y = −16t^2 + 64t +16

h is the maximum height reached

t is in seconds

The velocity of the projectile at its maximum height is zero;

velocity v = dy/dt

v = -32t + 64

Since v = 0 at maximum height

0 = -32t + 64

32t = 64

t = 2secs

Substitute t = 2secs into the equation of the height to get the maximum height.

y = −16t^2 + 64t +16

at t = 2secs

y = −16(2)^2 + 64(2) +16

y = -64 + 128 + 16

y = 64+16

y = 80 feet

Hence the maximum height, in feet, reached by the projectile is 80 feet

5 0

3 years ago

Triple 9, then multiply 7 by the result in an EXPREESION.​

Triple 9, then multiply 7 by the result in an EXPREESION.