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3 years ago

In between what two integers is the \large \sqrt{77}

Mathematics

1 answer:

noname [10]3 years ago

6 0

Answer:

8 and 9

Step-by-step explanation:

<u>Since 77 is between 64= 8² and 81= 9²</u>

√64 < √77 < √81
8 < √77 < 9

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Karen reads 20 pages of her book in half hour. If she reads for 3 hours at that same rate, about how many pages of her book can

julsineya [31]

Answer:

She can read 120 pages

Step-by-step explanation:

We can use ratios to solve

20 pages x pages

--------------- = -----------

1/2 hour 3 hours

Using cross products

20 *3 = 1/2 x

Multiply by 2

20*3*2 = 1/2 *2 *x

120 = x

She can read 120 pages

4 0

3 years ago

Read 2 more answers

Question 9

Katena32 [7]

we can conclude that the range is:

(0, 5), (-16, -1), (12, 4)

Which is the first option (counting from the top).

<h3>How to find the range?</h3>

When we have a relation:

x⇒f(x) = y

We define the domain as the set of possible inputs, and the range as the set of possible outputs.

In this case, we know that the domain is:

(0, 5), (8, -1), (-6, 4)

And the transformation is:

f(x, y) = (-2x, y)

So, if we apply that to each one of the pairs in the domain, we will get:

f(0, 5) = (-2*0, 5) = (0, 5)

f(8, -1) = (-2*8, - 1) = (-16, -1)

f(-6, 4) = (-2*-6, 4) = (12, 4)

Then we can conclude that the range is:

(0, 5), (-16, -1), (12, 4)

Which is the first option (counting from the top).

If you want to learn more about domain and range:

brainly.com/question/10197594

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4 0

1 year ago

Write in logarithmic form.<br> 729 = 9^3

kolezko [41]

Answer:

Step-by-step explanation:

729 = 9³

by definition

$a = b^{c}$ can be written as $log_{b} a = c$

by the same reasoning

$729 = 9^{3}$ can be written as $log_{9} 729 = 3$

4 0

3 years ago

Help Please.. 1 /2x + y = 4 What is the x-intercept? What is the y-intercept?

IgorC [24]

Answer:

x - intercept = 8

y - intercept = 4

Step-by-step explanation:

In order to to find x- intercept, plug y = 0, in the given equation of line.

$\frac{1} {2} x+y = 4\\\\\frac{1} {2} x+0 = 4..(plug \: y = 0)\\\frac{1} {2} x = 4\\x = 2\times 4\\x = 8\\\huge \red {\boxed {\therefore x-intercept = 8}}$

In order to to find y- intercept, plug x = 0, in the given equation of line.

$\frac{1} {2} x+y = 4\\\\\frac{1} {2} \times 0+y = 4..(plug \: x = 0)\\0+y = 4\\y = 4\\\huge \purple {\boxed {\therefore y-intercept = 4}}$

8 0

3 years ago

XZ=n, WZ=2x-5, and the perimeter of ΔXWZ is 20. What is the value of n?

Sergio039 [100]

Answer:

Step-by-step explanation:

Since it's an isosceles triangle, WX=WZ= 2n-5

Perimeter = n + (2n-5) + (2n-5)

= 5n - 10

The Perimeter is given to be 20

5n - 10 = 20

5n = 30

n = 6

3 0

3 years ago