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3 years ago

Which of the following represents "the square of the sum of a number and 4 is 36"?

Mathematics

2 answers:

zimovet [89]3 years ago

7 0

Answer:

lets write the information as an equation, and name x the number unknown:

(x + 4)^2 = 36

that is:

the sum of a number and 4: (x + 4)

then, the square of the sum of a number and 4: (x + 4)^2

so we have:

(x + 4)^2 = 36

to solve we calculate square root to both sides of the equation:

(x + 4) = 6

then we solve for x:

x = 6 - 4

x = 2

so the unknown number is 2

Step-by-step explanation:

Temka [501]3 years ago

6 0

Lets write the information as an equation, and name x the number unknown:
(x + 4)^2 = 36
that is:
the sum of a number and 4: (x + 4)
then, the square of the sum of a number and 4: (x + 4)^2
so we have:
(x + 4)^2 = 36
to solve we calculate square root to both sides of the equation:
(x + 4) = 6
then we solve for x:
x = 6 - 4
x = 2
so the unknown number is 2

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Where does the y axis intersect

stepladder [879]

Is there a picture or something?

7 0

3 years ago

The manager of a snack bar buys bottled water in packs of 35 and candy bars in packs of 20. Then, she sells the items individual

hoa [83]

Answer:

8 packs of bottled water and 14 packs of candy bars

Step-by-step explanation:

Provided,

Each pack of water bottles = 35 bottles

Each pack of candy = 20 candy

Since quantity of candy in each pack is small than quantity of water bottle in each pack, in order to have same quantity in numbers of both bottles and candies,

Purchase quantity of candy packs shall be more than the pack of water bottles.

Further, with this option 1 and 2 are not valid as candy packs are same or less than packs of water bottle.

In option 3 and 4, option 3 have smaller quantities as provided manager bought the least possible quantity.

Accordingly

Option 3

8 packs of water bottle = $8 \times 35 = 280 \ water\ bottles$

14 packs of candy = $14 \times 20 = 280 \ candies$

Since the quantities of water bottles and candies are same this is an opt answer.

6 0

4 years ago

Read 2 more answers

One fifth of a number n is equal -7 write equation and true false or open sentence

Otrada [13]

One fifth of a number n is equal -7 as an equation would look like this:

1/5 n = -7 / * 5 (both sides)
n = -35

So if number n equals -35, then it's true that 1/5n equals -7.

4 0

3 years ago

Read 2 more answers

A. Draw the image of ΔDEF after a rotation of 90° clockwise about the point (1,0). Label the image ΔD’E’F’.

irina [24]

Answer:

see the attachment

Step-by-step explanation:

(a) Clockwise rotation moves a point from (x, y) to (y, -x).

(b) Reflection across x=1 moves a point from (x, y) to (2-x, y).

7 0

3 years ago

Solve the following equation. Round solution to the tenths place. 29 = с/7.2 C =

expeople1 [14]

Answer:

c = 208.8

Step-by-step explanation:

a. $\frac{c}{7.2} =29$ To solve for C, you need to get the variable on one side of the equation and the numbers on the other side of the equation.

b. $\frac{c}{7.2} =29$ You need to move the 7.2 to the other side. So, multiply both sides by 7.2, because it's being divided, so multiplying will cancel it out.

c: $c = 29 * 7.2$ Then, multiply 7.2 by 29. (The * symbol means multiply)

d. c. = 208.8 The answer is 208.8, which is rounded to the tenths place.

Hope this helps! I tried to explain it in detail. :)

7 0

3 years ago