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3 years ago

Can u explain how u answer this question?

Mathematics

1 answer:

Leto [7]3 years ago

6 0

Answer:

Value of given expression $\frac{2p}{q}$ when p = -4 and q = 2 is -4.

Step-by-step explanation:

Given expression , $\frac{2p}{q}$

We have to evaluate the value of the expression when p = -4 and q = 2

Consider the expression given $\frac{2p}{q}$

To find the value a the given value just put the values in the given expression

$\frac{2p}{q}$ becomes $\frac{2(-4)}{2}$

Solve further to get its value,

$\Rightarrow \frac{-8}{2}$

$\Rightarrow -4$

Thus, value of given expression $\frac{2p}{q}$ when p = -4 and q = 2 is -4.

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Write the equation of a line that meets all the following requirements:

LuckyWell [14K]

9514 1404 393

Answer:

x + y = 5
y = -x + 5

Step-by-step explanation:

We can start with the point-slope form of the equation for a line. To meet the given requirements, we can use a point of (5, 0) and a slope of -1. Then the equation in that form is ...

y -0 = -1(x -5)

Simplifying gives the slope-intercept form:

y = -x +5 . . . . . . . use the distributive property to eliminate parentheses

Adding x to both sides gives the standard form:

x + y = 5

Explanation

We know the line has the required intercept and slope because we chose those values to put into the point-slope form. Conversion from one form to another made use of the rules of equality, the additive identity element (y-0=y), and the distributive property.

8 0

2 years ago

Write down the value of 5 in the following numbers.

Sliva [168]

50 tens
5000 thousands
50000 ten thousand
50 tens
5
Hope this helps

7 0

3 years ago

Alyssa is learning to drive her parents' car. • • • • She increases her speed for 20 seconds. She slows down for 10 seconds. She

anygoal [31]

<h3>Answer: Choice D</h3>

Explanation:

Any time Alyssa is increasing her speed, the graph will move uphill when going from left to right.

If she slows down, then the graph will move downhill when going left to right.

Always move from left to right when reading a graph because this is how the time axis is set up.

Any flat part represents portions where her speed is constant, i.e. doesn't change.

With all that in mind, the answer is choice D because

The first portion is going uphill (she's increasing her speed). This portion spans horizontally from 0 seconds to 20 seconds.
The next portion is her slowing down (the graph is going downhill). This portion spans horizontally from 20 seconds to 30 seconds (so we have a 10 second duration).
The third portion is where Alyssa is driving at some fixed speed that doesn't change. This portion is 20 seconds long.
The last portion is Alyssa slowing down and coming to a complete stop. This portion is 5 seconds long.

7 0

2 years ago

Use the formula h(t)=−16t2+v0t+h0 , where v0 is the initial velocity and h0 is the initial height. How long will it take for the

Rama09 [41]

Question:

Britney throws an object straight up into the air with an initial velocity of 27 ft/s from a platform that is 10 ft above the ground. Use the formula h(t)=−16t2+v0t+h0 , where v0 is the initial velocity and h0 is the initial height. How long will it take for the object to hit the ground?

1s 2s 3s 4s

Answer:

It takes 2 seconds for object to hit the ground

Solution:

The given equation is:

$h(t) = -16t^2 + v_0t+h_0$

Initial velocity = 27 feet/sec

$h_0 = 10\ feet$

Therefore,

$h(t) = -16t^2 +27t+10$

At the point the object hits the ground, h(t) = 0

$-16t^2 +27t+10 = 0\\\\16t^2-27t-10=0$

Solve by quadratic formula,

$\mathrm{For\:a\:quadratic\:equation\:of\:the\:form\:}ax^2+bx+c=0\mathrm{\:the\:solutions\:are\:}\\\\x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}\\\\\mathrm{For\:}\quad a=16,\:b=-27,\:c=-10:\quad \\\\t=\frac{-\left(-27\right)\pm \sqrt{\left(-27\right)^2-4\cdot \:16\left(-10\right)}}{2\cdot \:16}\\\\t = \frac{27 \pm \sqrt{1369}}{32}\\\\t = \frac{27 \pm 37}{32}\\\\We\ have\ two\ solutions\\\\t = \frac{27+37}{32}\\\\t = \frac{64}{32}\\\\t = 2\\\\And\\\\t = \frac{27-37}{32}\\\\t = -0.3125$

Ignore, negative value

Thus, it takes 2 seconds for object to hit the ground

7 0

3 years ago

JUST HELP PLS I POSTED THIS SO MANY TIMES AND NO HELPP AND NO LINKS I WILL REPORT!! PLSS HELPPP MEE I NEED TO GRADUATE!!! Which

Nikitich [7]

Answer:

d hope it helps make brainlliest ty

Step-by-step explanation:

someone report my question in here

8 0

2 years ago