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4 years ago

I really need help answering these problems Please answer any of the questions

Mathematics

1 answer:

Vladimir79 [104]4 years ago

3 0

Oh hey so first you gonna do X over 2-7 is going to equal night OK so

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99 points help SHOW YOUR WORK Q+B=13. When B+3=0

belka [17]

Q+B=13. When B+3=0

You have 2 separate equations.

First solve the 2nd equation for B:

B +3 = 0

Subtract 3 from both sides:

B +3 - 3 = 0-3

Simplify:

B = -3

Now we have a value for B, we can replace b with -3 in the first equation and solve for Q:

Q + -3 = 13

Add 3 to each side:

Q + -3 + 3 = 13+3

Simplify:

Q = 16

So you have Q = 16 and B = -3

7 0

3 years ago

Read 2 more answers

3. The regular polygon below has a radius of 13 cm and an apothem of 12 cm. Solve for the perimeter of the

LenKa [72]

25 because I added it so that why I got that answee

4 0

3 years ago

A bird sees a worm on the ground 50 m. below. The bird dives for the worm at a speed of 6 m/sec. The function h\left( t \right)

iragen [17]

<u>Given</u>:

The height of the bird at time t is given by the function $h(t)=-4.9t^2+6t+50$

We need to determine the time it takes the worm to be eaten by the bird.

<u>Time taken:</u>

The time can be determined by substituting h(t) = 0 in the function.

Thus, we have;

$0=-4.9t^2+6t+50$

Switch sides, we get;

$-4.9t^2+6t+50=0$

Let us solve the equation using the quadratic formula.

Thus, we get;

$t=\frac{-6 \pm \sqrt{6^{2}-4(-4.9) 50}}{2(-4.9)}$

Simplifying, we get;

$t=\frac{-6 \pm \sqrt{36+980}}{-9.8}$

$t=\frac{-6 \pm \sqrt{1016}}{-9.8}$

$t=\frac{-6 \pm 31.87}{-9.8}$

The values of t are given by

$t=\frac{-6 + 31.87}{-9.8}$ and $t=\frac{-6 - 31.87}{-9.8}$

$t=\frac{25.87}{-9.8}$ and $t=\frac{-37.87}{-9.8}$

$t=-2.4$ and $t=3.9$

Since, the value of t cannot be negative, then $t=3.9$

Thus, the time taken by the bird to eat the worm is $t=3.9$ seconds.

Hence, Option B is the correct answer.

5 0

3 years ago

4/5 x 1/4 Write the answer in simplest form.

Arisa [49]

Answer:

0.2 or 1/5 as fraction form

Step-by-step explanation:

Hope this helps?!

3 0

3 years ago

Read 2 more answers

Finding missing angle. PLEASE HELP ME!

pishuonlain [190]

Answer:

x=147°

Step-by-step explanation:

1. Analyze: The angle opposite to the 33 degree angle is 33 degrees because they are vertical angles.

2. Make an equation: The sum of all four angles (x, the angle opposite of x, the 33 degree angle, and the angle opposite of the 33 degree angle) is 360°. Therefore the equation would be (33°x2)+2x= 360°.

3. Solve for x:

a. Multiply 33 by 2

66+2x=360

b. Subtract 66 from both sides

66+2x=360

-66 -66

2x=294

c. Divide both sides by 2

$\frac{2x}{2} =\frac{294}{2}$

x=147

4. Remember to add your label- the degree sign (°)

x=147°

4 0

3 years ago