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Volgvan
3 years ago
7

Answer -3(-4-6y)+7(-y+5)=-8

Mathematics
1 answer:
Simora [160]3 years ago
8 0

Answer:

-5

Step-by-step explanation:

12+18y-7y+35=-8

11y+47=-8

11y=-55

y=-5

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Coordinates of the midpoints of (-9,5) and (21,-7)
slega [8]

Answer:

wait what are we measuring I would need to see the graph to know

6 0
3 years ago
Read 2 more answers
PLEASE HELP NEED THIS DONE ASAP
kenny6666 [7]

Answer:

The area of rhombus PQRS is 120 m.

Step-by-step explanation:

Consider the rhombus PQRS.

All the sides of a rhombus are equal.

Hence, PQ = QR = RS = SP = 13 m

The diagonals PR and QS bisect each other.

Let the point at of intersection of the two diagonals be denoted by <em>X</em>.

Consider the triangle QXR.

QR = 13 m

XR = 12 m

The triangle QXR is a right angled triangle.

Using the Pythagorean theorem compute the length of QX as follows:

QR² = XR² + QX²

QX² = QR² - XR²

       = 13² - 12²

       = 25

 QX = √25

       = 5 m

The measure of the two diagonals are:

PR = 2 × XR = 2 × 12 = 24 m

QS = 2 × QX = 2 × 5 = 10 m

The area of a rhombus is:

\text{Area}=\frac{1}{2}\times d_{1}\times d_{2}

Compute the area of rhombus PQRS as follows:

\text{Area}=\frac{1}{2}\times PR\times QS

        =\frac{1}{2}\times 24\times 10\\\\=120

Thus, the area of rhombus PQRS is 120 m.

5 0
3 years ago
Three signals that beep.
notka56 [123]

Answer:

The number of times signal a beeps in 1 hour = 144 times

The number of times signal b beeps in 1 hour = 120 times

The number of times signal c beeps in 1 hour = 36 times

The number of times three signals bee in one hour = 12 times

Step-by-step explanation:

The given parameters are;

The period for each signals beep are;

Signal a beeps every 25 seconds

Signal b beeps every 30 seconds

Signal c beeps every 100 seconds

Therefore, in one hour, signal a will beep 1× 60 × 60/25 = 3600/25 = 144 times

In one hour, signal b will beep 1×60×60/30 = 3600/30 = 120 times

In one hour, signal c will beep 1×60×60/100 = 3600/100 = 36 times

Therefore, we have;

The number of times signal a beeps in 1 hour = 144 times

The number of times signal b beeps in 1 hour = 120 times

The number of times signal c beeps in 1 hour = 36 times

From Excel, we can see that the three signals beep the same time at 300, 600, 900, 1200, 1500, 1800, 2100, 2400, 2700, 3000, 3300, and 3600

The number of times three signals bee in one hour = 12 times

8 0
3 years ago
Use graphing technology to find the range of the function f(x)=2^x+1.f(x)=2 <br> x<br> +1
marusya05 [52]

The range of the given function is equal to (2, 7).

<h3>What is a range?</h3>

A range can be defined as the set of all real numbers that connects with the elements of a domain. This ultimately implies that, a range refers to the set of all possible output numerical values, which are shown on the y-axis of a graph.

<h3>How to identify the range and domain of this graph?</h3>

The vertical extent of a graph represents all range values and they are always read and written from smaller to larger numerical values, and from the bottom of the graph to the top.

Similarly, the horizontal extent of a graph represents all domain values and they are also read and written from smaller to larger numerical values, and from the left of the graph to the right.

By critically observing the graph of function f(x) shown, we can infer and logically deduce the following:

Range = (2, ∞).

Read more on range here: brainly.com/question/17295757

#SPJ1

3 0
2 years ago
4 less than a number and 9
tangare [24]

Answer:

9x-4

Step-by-step explanation:

9x-4 4 less = -4. number = x. 9 is by x.

3 0
3 years ago
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