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Anastasy [175]
2 years ago
5

Simplify the expression: 4b - 24 + 19 4p - 5p - 30p 4.2v - 5 - 6.5v

Mathematics
1 answer:
Licemer1 [7]2 years ago
4 0
For the first expression we will only simplify the constants:

4b - 24 + 19 ——> 4b - 5

The second expression only has variables so we simplify the whole expression

4p - 5p - 30p = -31p


The third expression we will only simplify the variables

4.2v - 5 - 6.5v ——> -2.3v - 5
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T&L - Math 7 - Volume 7.4 -19-20
Mashcka [7]

Answer: You would need 512 cubic centimetres

Step-by-step explanation: The first approach to this question would be to understand the properties of the shape given in the question.

If a cube has an edge with length 8 cm, then all edges measure 8 cm as well. That is one property of a cube. Hence, the length, width and height all measure 8 cm each.

The volume of a cube is given as follows;

V = L x W x H (and the answer is expressed as V³)

Since the length , width and height all measure 8 cm, the volume can simply be expressed as

V = L x L x L

V = L³

V = 8³

V = 512 cm³

Therefore to completely fill a cube with edge length of 8 cm you would need 512 cubic centimetres.

5 0
3 years ago
3. In your own words, describe what a response variable is in an experiment.
Fofino [41]

Answer:

A response variable is a dependent variable. it is a variable which is measured and explained in an experiment

Step-by-step explanation: a response variable must always gwith explanation variable.

3 0
2 years ago
Read 2 more answers
The terminal side of an < θ intersects the Unit Circle at point P=(5/6, -√11/6)
arlik [135]

Given that the terminal side of an <θ intersects the unit circle at the point

P(\frac{5}{6},\frac{-\sqrt[]{11}}{6})

From the given point P:

\begin{gathered} x=\frac{5}{6} \\ y=\frac{-\sqrt[]{11}}{6} \\ \text{ s}ince,\text{ x is positive and y is negative, the angle lies in the 4th quadrant} \end{gathered}\begin{gathered} \tan \theta=\frac{\text{ opposite}}{\text{Adjacent}}=\frac{y}{x} \\ \tan \theta=\frac{\frac{-\sqrt[]{11}}{6}}{\frac{5}{6}}=\frac{-\sqrt[]{11}}{5} \\ \tan \theta=-0.6633 \\ \theta=326.44^0 \end{gathered}

8 0
1 year ago
Cary is 9 years older than Dan. In 7 years, the sum of their ages will equal 93. Find both of their
a_sh-v [17]
Cary's age is 9 years MORE than Dan's age.
Cary's age is Dan's age, but with 9 more years added to that.
Here is how we can express that,
\rm C=D+9
In 7 years, Cary will be C+7 years old,
and Dan will be D+7 years old.
In 7 years, the sum of their ages,
(C+7) and (D+7) will equal 93.

Here is how we can express that:
\rm (C+7)+(D+7)=93

You have a system of two equations involving two unknowns. You have a couple of nice options here. You can apply substitution or elimination to complete the problem.
3 0
3 years ago
Let
elena-s [515]

Answer:

I don't understand the question myself

6 0
3 years ago
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