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3 years ago

Can someone answer 2,3,4

Mathematics

1 answer:

DENIUS [597]3 years ago

8 0

2: 335 cause you have to do 80b+5s= 80(4)= 320
5(3)=15
320+15=335

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a student found the slope of a line that passes through the point (-3,-10) and (5,-7) to be 3/8 what mistake did he make

In-s [12.5K]

The student didn't make any mistake. The slope of the line between those points is 3/8.

3 0

3 years ago

Convert to radical form (3) 2/3

UNO [17]

Answer:

The radical form of 3 2/3 is

$\sqrt[3]{3 {}^{2} }$

3 0

3 years ago

If cos Θ = square root 2 over 2 and 3 pi over 2 < Θ < 2π, what are the values of sin Θ and tan Θ?

KIM [24]

Answer:

The answer is

$sin(\theta)=-\frac{\sqrt{2}}{2}$

$tan(\theta)=-1$

Step-by-step explanation:

we know that

$tan(\theta)=\frac{sin(\theta)}{cos(\theta)}$

$sin^{2}(\theta)+cos^{2}(\theta)=1$

In this problem we have

$cos(\theta)=\frac{\sqrt{2}}{2}$

$\frac{3\pi}{2}$

The angle $\theta$ belong to the third or fourth quadrant

The value of $sin(\theta)$ is negative

Step 1

Find the value of $sin(\theta)$

Remember

$sin^{2}(\theta)+cos^{2}(\theta)=1$

we have

$cos(\theta)=\frac{\sqrt{2}}{2}$

substitute

$sin^{2}(\theta)+(\frac{\sqrt{2}}{2})^{2}=1$

$sin^{2}(\theta)=1-\frac{1}{2}$

$sin^{2}(\theta)=\frac{1}{2}$

$sin(\theta)=-\frac{\sqrt{2}}{2}$ ------> remember that the value is negative

Step 2

Find the value of $tan(\theta)$

$tan(\theta)=\frac{sin(\theta)}{cos(\theta)}$

we have

$sin(\theta)=-\frac{\sqrt{2}}{2}$

$cos(\theta)=\frac{\sqrt{2}}{2}$

substitute

$tan(\theta)=\frac{-\frac{\sqrt{2}}{2}}{\frac{\sqrt{2}}{2}}$

$tan(\theta)=-1$

8 0

3 years ago

Read 2 more answers

147 is 35%of what number

pantera1 [17]

X - the number

$35\%x=147 \\
0.35x=147 \ \ |\hbox{divide both sides by 0.35} \\
x=420$

147 is 35% of 420.

4 0

3 years ago

Read 2 more answers

I WILL GIVE U BRAINLIEST IF U ANSWER RIGHT <br> Which point has the coordinates (−3.5, 4)?

Dvinal [7]

<h2>Greetings!</h2>

An easy way to remember this is along the corridoor, up the stairs!

That being said the first number, -3.5, is a negative which means it will be on the left hand side of the x axis. Simply look for the point that goes along this line.

And the second number, which is the point on the y axis, is a positive number which means it is above the x axis. Simply look for the point that is along y = 4

This means you can find the point, which in this case is Z.

<h2>Hope this helps!</h2>

3 0

3 years ago