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xz_007 [3.2K]
3 years ago
14

–0.8b2+7.4b+(5.6b–0.2b2)

Mathematics
2 answers:
e-lub [12.9K]3 years ago
6 0

Answer:

Simplify the expression.

− 1b^{2}+ 13 b

Step-by-step explanation:

aev [14]3 years ago
5 0

In this question, you would be combining like terms

Solve by combining like terms:

-0.8b²+7.4b+(5.6b-0.2b²)

This is the same as:

-0.8b² + 7.4b + 5.6b - 0.2b²

Solve:

-0.8b² + 7.4b + 5.6b - 0.2b²

-1b² + 7.4b + 5.6b

-1b² + 13b

Answer:

-1b² + 13b

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Two triangular prisms are similar. The perimeter of each face of one prism is double the perimeter of the
shepuryov [24]

The area of a shape is the amount of space it can occupy.

<em>The surface area of the larger prism is 4 times the surface area of the smaller prism. </em>

<em />

<em />

<em>Let the dimension of one side of the smaller prism be: l and w</em>

<em>Let the dimension of one side of the bigger prism be: L and W</em>

<em />

So, we have:

L = 2l

W =2w

The area of these corresponding sides are:

A_1 =l \times w ---- the first

A_1 = lw

While, the area of the second is:

A_2 =2l\times 2w\\

A_2 =4lw

The ratio of these two sides are:

Ratio = A_1 : A_4

<em>This gives</em>

Ratio = lw : 4lw

Cancel out common terms

Ratio = 1 : 4

Express as fractions

Ratio = \frac 14

Also, we have:

Ratio = \frac{Small}{Large}

This gives

\frac{Small}{Large} = \frac 14

Cross multiply

Large = 4 \tiimes Small

Large =  4\4Small

Hence, option (c) is true

Read more about areas at:

brainly.com/question/6465134

4 0
2 years ago
Which expression is equivalent to StartFraction (3 m Superscript negative 1 Baseline n squared) Superscript negative 4 Baseline
koban [17]

Answer:

3m^{10}n^{-11}

Step-by-step explanation:

Given the expression \frac{(3m^{-1}n^{2})^{-4}   }{(2m^{-2}n)^{3}  }, we will use laws of indices to get the equivalent expression as shown below;

According to one of the law of indices,

\frac{a^{m} }{a^{n} } = a^{m-n}  \ and\ (a^{m})^{n} = a^{mn}

\frac{(3m^{-1}n^{2})^{-4}   }{(2m^{-2}n)^{3}  }\\= \frac{3m^{4}n^{-8}   }{2m^{-6}n^{3}  }\\= 3m^{(4-(-6))} * n^{-8-3}\\ = 3m^{10}n^{-11}

This gives the required expression

8 0
3 years ago
Read 2 more answers
What is 19 - 6x = 29
notka56 [123]

Answer:

x = (-5)/3

Step-by-step explanation:

Solve for x:

19 - 6 x = 29

Hint: | Isolate terms with x to the left hand side.

Subtract 19 from both sides:

(19 - 19) - 6 x = 29 - 19

Hint: | Look for the difference of two identical terms.

19 - 19 = 0:

-6 x = 29 - 19

Hint: | Evaluate 29 - 19.

29 - 19 = 10:

-6 x = 10

Hint: | Divide both sides by a constant to simplify the equation.

Divide both sides of -6 x = 10 by -6:

(-6 x)/(-6) = 10/(-6)

Hint: | Any nonzero number divided by itself is one.

(-6)/(-6) = 1:

x = 10/(-6)

Hint: | Reduce 10/(-6) to lowest terms. Start by finding the GCD of 10 and -6.

The gcd of 10 and -6 is 2, so 10/(-6) = (2×5)/(2 (-3)) = 2/2×5/(-3) = 5/(-3):

x = 5/(-3)

Hint: | Simplify the sign of 5/(-3).

Multiply numerator and denominator of 5/(-3) by -1:

Answer: x = (-5)/3

6 0
3 years ago
HELP
grigory [225]
Don’t trust those link my guy
6 0
3 years ago
What is the area of a shape ​
forsale [732]

Answer:

It depends on what shape your talking about, like: a rectangle - Length  multiplied by Width

Step-by-step explanation:

Hope this helped, plz mark as brainiest :)

3 0
4 years ago
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