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3 years ago

Solve for q if 5q-21/14=1

Mathematics

2 answers:

swat323 years ago

8 0

Step 1: Simplify both sides of the equation.

Step 2: Add 3/2 to both sides.

Step 3: Divide both sides by 5.

Irina-Kira [14]3 years ago

4 0

Answer:

q=0.5 or 1/2

Step-by-step explanation:

5q-21/14=1

add 21/14 to both sides

5q=2.5

divide both sides by 5

q=0.5 or 1/2

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daser333 [38]

Answer:

60 cubic meters

Step-by-step explanation:

8 0

3 years ago

Give the components of the velocity vector for wind blowing at 12 km/hr toward the southeast. (Assume north is the positive y-di

svp [43]

Answer:

$\overline{V_x} = 6\sqrt{2}\\\overline{V_y} = -6\sqrt{2}$

components can be written as:

$\overline{V} = 6\sqrt{2}\,\hat{i}-6\sqrt{2}\,\hat{j}$

Step-by-step explanation:

The components of a velocity vector at any direction can be thought of separate vectors in 'i' and 'j' directions respectively. These vectors can be added to make the resultant velocity vector.

In our case the magnitude is provided:

$|\overline{V}|= 12$

the direction is provided to be southeast:

$\theta = 45$

$\theta$ is measured from positive x-axis clockwise towards the 4th quadrant. it is important to know that quadrant since the signs of the components will be where x is positive and y is negative as the direction is south east (+x,-y).

the components of the velocity will be:

$\overline{V_x} = 12\cos{(45)} = 12\dfrac{\sqrt{2}}{2} = 6\sqrt{2}\\\overline{V_y} = -12\sin{(45)} = -12\dfrac{\sqrt{2}}{2} = -6\sqrt{2}\\$

So that:

$\overline{V} = \overline{V_x}\hat{i}+\overline{V_x}\hat{j}$

$\overline{V} = 6\sqrt{2}\,\hat{i}-6\sqrt{2}\,\hat{j}$

This can be checked using since we know that magnitude of the above vector should be 12.

$|\overline{V}| = \sqrt{(12\cos{\theta})^2+(12\sin{\theta})^2}$

$|\overline{V}| = \sqrt{(6\sqrt{2})^2+(-6\sqrt{2})^2}\\|\overline{V}| = \sqrt{36(2)+36(2)}\\|\overline{V}| = \sqrt{144} = 12\\$

3 0

3 years ago

Could you please help me out ??

Mila [183]

A = (1/2) · 27.6 · 30 ·sin23°
= 414 · 0.3907
= 161.7 сm²

4 0

3 years ago

Please help me with my measurement 2 last questions.<br>Edit : please read 8 carefully.

iragen [17]

The different units of measurement (millimeters, centimeters, meters and kilometers) are used to measure from very short distances such as the amount of a medicine in a syringe to long distances between cities.

<h3>What are units of measure?</h3>

Measurement units are a series of references that are used to measure different elements and factors. Specifically, the units of measure for distance measure the distance between two points.

However, not all units of measure work for all situations, for example:

Millimeters are a unit of measurement for very short distances such as millimeters of medication in a syringe.
Centimeters are a unit of measurement for average distances such as the height of a person or the size of some objects.
Meters are a unit of measurement for large distances such as the dimensions of a house.
Kilometers are a unit of measurement for very large distances such as the distance between two cities or countries.

Learn more about distance in: brainly.com/question/15172156

#SPJ1

6 0

2 years ago

2/3+y−4/5=1/3<br><br> by the way 2/3,4/5, and 1/3 are fractions

Luden [163]

Find the common denominator between 2/3 and 4/5 which is 15.

It will look like this:
(10-12)/15+y=1/3

Calculated:
-2/15+y=1/3

Then Add 2/15 to the other side:
Y=1/3+2/14

Again change the denominator of 1/3 to equal 15 but multiplying the whole fraction by 5.

Y= (5+2)/15
Y=7/15

4 0

3 years ago