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3 years ago

The sum of z and 7? What is it plz

Mathematics

2 answers:

Alekssandra [29.7K]3 years ago

7 0

Answer:

z+7

Step-by-step explanation:

Firstly once you see the word sum it means you will have to add up to get a specific number

For example the sum of 6 and 7 means 6+7 which will give us 13

The sum of z and 7 will z+7,but we observe that z is not a number so we cannot add z+7 but in the case of multiplication that is z×7

It will give us 7z but the case of addition is totally different from that of multiplication

Therefore the final answer is z+7

wolverine [178]3 years ago

5 0

Answer:

z + 7

Step-by-step explanation:

Step 1: Convert words into an expression

The sum of z and 7

z + 7

Answer: z + 7

If needed solve:

z + 7 - 7 = 0 - 7

z = -7

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Rewrite in simplest terms: -0.2t - 5 (-8t + 5)

SVETLANKA909090 [29]

Answer: 40.2t - 25

Step-by-step explanation:

-0.2t - 5 (-8t + 5)

-0.2t + 40t -25

39.8t - 25

6 0

3 years ago

10 families were asked how many pets they have.here i8s the data.2,3,3,5,4,2,4,0,1,3 find the mean ,medianand mode of the data?

VladimirAG [237]

The mean is 2.7.
The median is: 3
The mode is 3.
Hope this helps!
pls give Brainliest answer!
p.s. if you need an explanation of how to find the mean, median, and mode, just pm me.

4 0

3 years ago

Read 2 more answers

Plzzz help i am ineeeddeddeedeededed of it!!!

Vikentia [17]

Sallys statement is always true
for example:
-6 + 2 = -4
but if I turn it around
2 - 6 = -4
same answer

-6 -6 = -12
swap around -6 - 6 = 12
same answer

again -3 + 6 = 3
and 6 - 3 = 3

6 0

4 years ago

-/2 points

Rom4ik [11]

Answer:

Part 1) The domain of the quadratic function is the interval (-∞,∞)

Part 2) The range is the interval (-∞,1]

Step-by-step explanation:

we have

$f(x)=-x^2+14x-48$

This is a quadratic equation (vertical parabola) open downward (the leading coefficient is negative)

step 1

Find the domain

The domain of a function is the set of all possible values of x

The domain of the quadratic function is the interval

(-∞,∞)

All real numbers

step 2

Find the range

The range of a function is the complete set of all possible resulting values of y, after we have substituted the domain.

we have a vertical parabola open downward

The vertex is a maximum

Let

(h,k) the vertex of the parabola

The range is the interval

(-∞,k]

Find the vertex

$f(x)=-x^2+14x-48$

Factor -1 the leading coefficient

$f(x)=-(x^2-14x)-48$

Complete the square

$f(x)=-(x^2-14x+49)-48+49$

$f(x)=-(x^2-14x+49)+1$

Rewrite as perfect squares

$f(x)=-(x-7)^2+1$

The vertex is the point (7,1)

therefore

The range is the interval

(-∞,1]

6 0

3 years ago

I really need help with this question

jenyasd209 [6]

Answer:

its a discrete graph

Step-by-step explanation:

hope this helps

5 0

3 years ago