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3 years ago

Evaluate pq÷4; use p=14, and q=14

Mathematics

2 answers:

Zolol [24]3 years ago

4 0

Answer:

Step-by-step explanation:

14x14 = 196

196/4 = 49

Stells [14]3 years ago

4 0

So the right answer is 49.

Look at the attached picture

Hope it will help you

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What is the best first step for solving the given system using substitution while avoiding fractions? =9x+4x=10 -9x+3y=3

aivan3 [116]

Answer:

Solve for y in the second equation

Step-by-step explanation:

We assume your system is ...

-9x +4y = 10
-9x +3y = 3

Dividing the second equation by 3 gives ...

-3x +y = 1

so an expression for y without fractions can be found by solving for y, that is, by adding 3x:

y = 3x +1

_____

Comment on alternate solution

We'd be tempted to solve the first equation for -9x and substitute for that.

-9x = 10 -4y

(10 -4y) +3y = 3 . . . . . substitute for -9x

-y = -7 . . . . . . . . . . . . . simplify, subtract 10

y = 7 . . . . . . . . . . . . . . multiply by -1

3 0

3 years ago

Read 2 more answers

If your plants receive water and sunlight they will grow. independent dependent

Yuliya22 [10]

Dependent because its growing by it self and it will need sun and light its depending on the sun and water

6 0

3 years ago

The area of rectangle ABCD is 72 square inches. A diagonal of rectangle ABCD is 12 inches and the diagonal of rectangle EFGH is

luda_lava [24]

Answer:

The area of rectangle EFGH is $242\ in^{2}$

Step-by-step explanation:

For this problem I assume that rectangle ABCD and rectangle EFGH are similar

step 1

Find the scale factor

we know that

If two figures are similar, then the ratio of its corresponding sides is proportional, and this ratio is called the scale factor

Let

z ------> the scale factor

The scale factor is the ratio between the diagonals of rectangles

$z=\frac{22}{12}=\frac{11}{6}$

step 2

Find the area of rectangle EFGH

we know that

If two figures are similar, then the ratio of its areas is the scale factor squared

Let

z------> the scale factor

x -----> area of rectangle EFGH

y ----> area of rectangle ABCD

$z^{2}=\frac{x}{y}$

we have

$z=\frac{11}{6}$

$y=72\ in^{2}$

substitute and solve for x

$(\frac{11}{6})^{2}=\frac{x}{72}$

$\frac{121}{36}=\frac{x}{72}$

$x=\frac{121}{36}(72)$

$x=242\ in^{2}$

4 0

2 years ago

Juanita says that a scale of 1 in. : 0.4 ft is equivalent to the ratio 6 in. : 2.4 ft. Do you agree? Explain why or why not.

Umnica [9.8K]

Answer:
Agree

Explanation:
The given scale is:
1 in : 0.4 ft
We want to get the equivalent ft for 6 in, therefore all we have to do is cross multiplication as follows:
1 in : 0.4 ft
6 in : ??
equivalent ft = (6*0.4) / (1) = 2.4 ft
This means that:
6 in : 2.4 ft is equivalent to the given scale

7 0

3 years ago

Find the area of the shape shown below. 12 by 5 by 5

hodyreva [135]

Answer:

300 squared unit of measurement

Step-by-step explanation:

12*5*5

12*5 = 60

60*5 = 300

I am assuming this is a rectangular prism

7 0

3 years ago

Evaluate pq÷4; use p=14, and q=14​

Evaluate pq÷4; use p=14, and q=14