All categories

3 years ago

If 8=10 and 1=7, which describes all the lines that must be parallel?

Mathematics

2 answers:

77julia77 [94]3 years ago

6 0

Answer: Lines r and s and lines t and u must be parallel.

Step-by-step explanation:

If $\angle{8}\cong\angle{10}$ which are alternate interior angle corresponding to line t and u.

then by Alternate interior angle property :

Lines t and u must be parallel.

If $\angle{1}\cong\angle{7}$ which are alternate exterior angle corresponding to line r and us.

then by Alternate exterior angle property :

Lines r and s must be parallel.

Hence, Lines r and s and lines t and u must be parallel.

Black_prince [1.1K]3 years ago

5 0

I'm not sure. But i think the answer is C
You can see that none of the lines are about to/ are intersecting

You might be interested in

Identify and EXPLAIN the ERROR

AveGali [126]

Answer:

Error: Sariah treated every term as though it were an x-term. 5 and -4.5 are constants that cannot be combined with the x-terms. They can only be combined with each other.

Correct solution: 31x + 0.5

Strategy: Pay attention to the variables.

Step-by-step explanation:

In her first step, it appears Sariah added 13x and 5 to get 18x. These terms are not like terms, so cannot be added in this way. An appropriate strategy is to first identify all the terms with the same variables (x in this case), then add their coefficients.

... = x(13 +17 +1) +5 -4.5

Likewise, all the constant terms can be added.

... = 31x +(5 -4.5)

... = 31x + 0.5

8 0

2 years ago

A community hall is in the shape of a cuboid the hall is 40m long 15m high and 3m wide. 10 litre paint covers 25m squared costs

Darina [25.2K]

Answer:

Total cost for tiles and paints is $924.

Step-by-step explanation:

We have been given that a community hall is in the shape of a cuboid. The hall is 40m long 15m high and 3m wide.

The paint will be required for 4 walls and ceiling.

Let us find area of walls and ceiling.

$\text{Area of walls and ceiling}=(2*40*15)+(2*3*15)+(40*3)$

$\text{Area of walls and ceiling}=1200+90+120$

$\text{Area of walls and ceiling}=1410$

Therefore, the area of walls and ceiling is 1410 square meters.

Given: Cost for 10 litre of paint is $10 and 10 litre paint covers 25 square meter. Therefore,

$\text{ The total painting cost}=10*(\frac{1410}{25})$

$\text{ The total painting cost}=10*56.4=564$

Therefore, the total painting cost is $564.

Tiles will be required for floor. Let us find the area of floor.

$\text{Area of floor} = 40*3\text{ square meters}$

$\text{Area of floor} =120\text{ square meters}$

Given: 1m squared floor tiles costs $3. So,

$\text{Total cost for tiles} = 3*120 = 360$

Therefore, the total tiles cost is $360.

Now let us find combined total cost of tiles and paint.

$\text{Combined total cost}= 564+360 = 924$

Therefore, the combined total cost of tiles and paint is $924.

6 0

2 years ago

Write an equation for a line that is parallel to the graph of y = -3x + 6 and passes through the point at (-4,7)

IgorC [24]

Answer
Here you go double check to make sure

8 0

3 years ago

Please help me guys!!! Value of X?

Arturiano [62]

The value of X is 56.66°. The sine of X (opposite/hypotenuse) is 66mm/79mm. When finding angle measurements, you would use sin−1 instead of sin, which is used for finding side lengths. So, X= sin−1(66/79). This then results to 56.66° after using the trig functions in a calculator.

3 0

3 years ago

Is the quotient of 3/5 ÷ 6/7 greater than or less than 3/5? Explain

Vikki [24]

The quotient of two fraction is the multiplication between the first and the inverse of the second:

$\dfrac{a}{b} \div \dfrac{c}{d} = \dfrac{a}{b} \cdot \dfrac{d}{c}$

So, in your case, you have

$\dfrac{3}{5} \div \dfrac{6}{7} = \dfrac{3}{5} \cdot \dfrac{7}{6} = \dfrac{7}{10}$

So, the question now is: which is larger, 7/10 or 3/5? To answer this question, transform the second fraction so that it will have denominator 10 as well:

$\dfrac{3}{5} = \dfrac{3\cdot 2}{5 \cdot 2} = \dfrac{6}{10}$

So, now it is clear that

$\dfrac{7}{10} > \dfrac{6}{10}$

3 0

2 years ago

Read 2 more answers