All categories

3 years ago

Please please help please help me help help me please help me

Mathematics

1 answer:

ryzh [129]3 years ago

5 0

Answer:

m=6/7

Step-by-step explanation:

(x,y) (2,4) (9,10)

10-4=6

9-2=7

You might be interested in

What is the result when 8x + 3 is subtracted from -2x + 5?

Lerok [7]

First you must find x in order to solve this question, unless you do not need to find out X.

6 0

3 years ago

Subtract the quotient of 15 divided by 4 from the sum 33 and 7

weeeeeb [17]

33+7-15/4
=40-3.75
=36.25

5 0

3 years ago

Survey math help please

marishachu [46]

75 females own a blue car out of 300 people. 75/300 x 100 = 25%

4 0

3 years ago

Read 2 more answers

Show with work please.

kolbaska11 [484]

Answer:

$\csc \left(\theta-\frac{\pi }{2}\right)=0.73$

Step-by-step explanation:

The identity you will use is:

$\csc \left(x\right)=\frac{1}{\sin \left(x\right)}$

So,

$\csc \left(\theta-\frac{\pi }{2}\right)$

$\csc \left(\theta-\frac{\pi }{2}\right)=\frac{1}{\sin \left(-\frac{\pi }{2}+\theta\right)}$

Now, using the difference of sin

Note: state that $\text{sin}(\alpha\pm \beta)=\text{sin}(\alpha) \text{cos}(\beta) \pm \text{cos}(\alpha) \text{sin}(\beta)$

$\csc \left(\theta-\frac{\pi }{2}\right)=\frac{1}{-\cos \left(\theta\right)\sin \left(\frac{\pi }{2}\right)+\cos \left(\frac{\pi }{2}\right)\sin \left(\theta\right)}$

Solving the difference of sin:

$-\cos \left(\theta\right)\sin \left(\frac{\pi }{2}\right)+\cos \left(\frac{\pi }{2}\right)\sin \left(\theta\right)$

$-\cos \left(\theta\right) \cdot 1+0\cdot \sin \left(\theta\right)$

$-\text{cos} \left(\theta\right)$

Then,

$\csc \left(\theta-\frac{\pi }{2}\right)=-\frac{1}{\cos \left(\theta\right)}$

Once

$\text{sec}(-\theta)=\text{sec}(\theta)$

And, $\text{sec}(\theta)=-0.73$

$-\frac{1}{\cos \left(\theta\right)}=-\text{sec}(\theta)$

$-\frac{1}{\cos \left(\theta\right)}=-(-0.73)$

$-\frac{1}{\cos \left(\theta\right)}=0.73$

Therefore,

$\csc \left(\theta-\frac{\pi }{2}\right)=0.73$

3 0

3 years ago

A star is a swirling mass of dense gases powered by thermonuclear reactions. The great solar furnace transforms 7 million tons o

marta [7]

Answer:

2.20752 x $10^{24}$

Step-by-step explanation:

The first thing you have to do is to look for the number of seconds in one year. You have to multiply 365 days by 86,400 seconds.

365 days refer to the total number of days per year
86,400 seconds refer to the number of seconds per day

Let's solve.

365 x 86,400 = 31,536,000 or 3.1536 x $10^{7}$

<em>Therefore, one year has 3.1536 x </em> $10^{7}$ <em> seconds.</em>

Next, you have to know the number of seconds in 10 billion years.

(3.1536 x $10^{7}$ ) x (1.0 x $10^{10}$ ) = 3.1536 x $10^{17}$

The last step is to multiply the number of seconds in 10 billion years to 7 million tons of mass per second.

(3.1536 x $10^{17}$ ) x 7,000,000 = 2.20752 x $10^{24}$

6 0

3 years ago