MATHEMATICS HIGH SCHOOL

Which expression is equivalent to 6(3x + 4)?1: 18x + 4
2: 18x + 24
3: 9x + 10
4: 9x + 4

Answers

Answer 1
Answer:

Answer:

2. 18x + 24

Step-by-step explanation:

Distribute the 6 to create 18x + 24
Answer 2
Answer: 18x+24
Multiple 6 to both 3x and 4.

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Select the proper inverse operation to check the answer to 25-13=12

Gold in the form of solid cylinders will be molded into solid blocks. Each cylinder has a diameter of 6.19 cm and a height of 6 cm. Each solid block will have a volume of 360 cm3. How many cylinders of gold will it take to mold one block of gold?

Answers

so volume of a cylinder=area of top circle times height or
pi times radius^2 times height
diameter=2 times radius
diameter times 1/2=radius
6.19/2=radius=3.095
pi times 3.095^2 times 6=177.077
so volume of cylinder=177.08
volume of gold=360
so
x cylinders=1 solid block
diviide both sdies by cylinder
x=block/cylinder
block=360
cylinder=177.08
360/177.08=2.03
so aprox 2.03 cylinders will make one block
round down since 0.03 is nigligible
the answer is 2

The diagram shows two straight lines.Not drawn accurately
136°
Х
Work out the value of x.

Answers

Answer:

x = 136º

Step-by-step explanation:

This is true because of the vertical angles rule. With vertical angles, they always equal each other.

Final answer:

The two straight lines form vertical angles due to their intersection which are congruent, giving x a value of 136°.

Explanation:

The question pertains to angles and lines in geometry. Based on the information given, it seems that the two straight lines form vertical angles. Vertical angles are two angles whose sides form two pairs of opposite rays. They occur when two lines intersect, and are congruent, meaning they have the same measure.

In this case, x and 136° seem to be vertical angles. Therefore, the value of x would be equal to the other angle. So, x = 136°.

Learn more about Vertical Angles here:

brainly.com/question/37625762

#SPJ3

Any line with no slope is parallel to the x-axis y-axis line y = x If the point (a,3) lies on the graph of the equation 5x + y = 8, then a= 1 -1 -7

Answers

Any line with no slope is parallel to the

THE ANSWER IS x-axis

Any line parallel to the x-axis has zero slope since there is no rise in the coordinates. The slope is equal to rise over run which means if there is no rise, the slope is zero.


If the point (a,3) lies on the graph of the equation 5x + y = 8, then

THE ANSWER IS a = 1

Simply substitute 3 to y, and solve for x:
5x + 3 = 8
5x = 8 - 3
5x = 5
x = 1

This is all about matrices, I don't really get them. Any help is great.

Answers

See Explanation

Step-by-step explanation:

1)

\begin{bmatrix} - 3 & 5 & 6\n-3 & 0 & - 3\end{bmatrix} -\begin{bmatrix} 6 & - 1& 1\n0& - 4& - 5\end{bmatrix} \n\n</p><p></p><p>=\begin{bmatrix} - 3-6 & 5-(-1) & 6-1\n-3-0 & 0-(-4) & - 3-(-5)\end{bmatrix} \n\n</p><p></p><p>=\begin{bmatrix} - 3-6 & 5+1 & 6-1\n-3-0 & 0+4 & - 3+5\end{bmatrix} \n\n</p><p></p><p>=\begin{bmatrix} - 9 & 6 & 5\n-3 & 4 & 2\end{bmatrix} \n\n</p><p></p><p>

2)

\begin{bmatrix} 4 & - 6 \n-3 & - 6\n2 & 6 \end{bmatrix} + \begin{bmatrix} 5 & 3 \n-5 & 5\n 4 & - 5\end{bmatrix} \n\n</p><p></p><p>= \begin{bmatrix} 4 +5& - 6+3 \n-3+(-5) & - 6+5\n2+4 & 6+(-5) \end{bmatrix} \n\n</p><p></p><p>= \begin{bmatrix} 4 +5& - 6+3 \n-3-5 & - 6+5\n2+4 & 6-5 \end{bmatrix} \n\n</p><p></p><p>= \begin{bmatrix} 9& - 3 \n-8 & - 1\n6 & 1\end{bmatrix} \n\n

A gym surveyed 100 female members. These members were chosen at random from the gym's membership database. Participants were asked the question, "Do you prefer to use the easy weight-lifting machines or the harder free weights?"A report of the survey results stated that female members at the gym prefer the weight-lifting machines over the free weights.

Select ALL statements that correctly evaluate the report.

Answers

Answer:

Step-by-step explanation:

The sample is not biased.  The members were selected at random from the gym's female population.

The question is biased.  It described the weight lifting machines as "easy" and the free weights as "harder".

The second and third choices are correct.

Answer:

1. The sample is not biased.

2.The question is biased towards a response of preferring to use weight-lifting machines.

Step-by-step explanation: jus took the test uwu

If 9 men can do a job in 24 days, how many men are needed to do the same job in 18 days?a. 11
b. 12
c. 15
d. 18

Answers

Answer:

b  12

Step-by-step explanation:

1/(9*24)=1/(x*18)

9*24=18x

x=12

Answer:

b. 12 mens are needed to do that job
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