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Elanso [62]
3 years ago
13

Directions: Estimate the sum or difference using front-end estimation.

Mathematics
1 answer:
poizon [28]3 years ago
6 0

Answer: 1) 97 – 39 2) 812,344 – 187,675 3) 321 + 79. Directions: Estimate the product using front end estimation. 4) 315 x 821 5) 562 x 791

Step-by-step explanation:hope i helped

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In your own words explain how reflections across the x-axis and across the y-axis each affect the coordinates of the points of a
Sati [7]
They make it negative or positive
3 0
4 years ago
The sum of two numbers is 54 and the difference is 12 . what are the numbers?
Gnesinka [82]
X + y = 54

x - y = 12

x = 33

y = 21

33 + 21 = 54

33 - 21 = 12

Hope this helps!
5 0
3 years ago
Help, please <br> Giving you 39 points!!
vova2212 [387]

Answer:

n = 10

Step-by-step explanation:

The triangles are equal by SSS theorem, therefore the 2 angles given with a variable must be equal.

6 0
3 years ago
What is the domain of f(x) = 2^x?
hammer [34]

The given function has no undefined points nor domain constraint. Thus, the domain is: -\infty \: < x < \infty.

<h3>Domain and Range</h3>

The domain of a function is the set of input values for which the function is real and defined. In the other words, when you define the domain, you are indicating for which values x the function is real and defined. An example, there is a restriction for the domain of fractions. The variable x in the denominator should be different of zero.

While the domain is related to the values ​​of x, the range is related to the possible values ​​of y that the function can have.

In this question, the function 2^x has no undefined points nor domain constraint. Therefore, the domain is: -\infty \: < x < \infty

Learn more about  the domain here:

brainly.com/question/10197594

#SPJ1  

3 0
2 years ago
(x^2+5)=7 and (x^2+5)k=21, what is the value of k?
Roman55 [17]

Step-by-step explanation:

{x}^{2}  + 5 = 7 \\  {x}^{2}  = 7 - 5 \\  {x}^{2}  = 2 \\  \\(  {x}^{2}  + 5)k = 21 \\ (2 + 5)k = 21 \\ (7)k = 21 \\ 7k = 21 \\  \frac{7k}{7}  =  \frac{21}{7}  \\ k = 3

8 0
3 years ago
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