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denpristay [2]
3 years ago
12

Write addition sentences (expression) where the sum is zero. can someone make a expression

Mathematics
2 answers:
Tamiku [17]3 years ago
5 0

Answer:

7-7=0

Step-by-step explanation:

Anna had 7 tickets. It was really windy outside and all her tickets flew down into the sewer. How many tickets does she have now?

12345 [234]3 years ago
4 0

<u>(-2)+2=0, (-0.5)+0.5=0, and (-5)+5=0</u>

All those equations answers are 0, please mark me brainiest, and hope I helped!

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What is the solution set to the following quadratic?
Svetach [21]

Answer:

x=-1, -6

Step-by-step explanation:

x^2+7x+6=0

factor

(x+1)(x+6)=0

x+1=0, x+6=0

x=0-1=-1

x=0-6=-6

5 0
3 years ago
on a blueprint, the height of a door is 0.4cm. the actual height of the door is 2m. What is the scale on the blueprint?
Roman55 [17]

Step-by-step explanation:

2 m corresponds to 0.4 cm on a blueprint.

so,

2 m / 0.4 cm = 200 cm / 0.4 cm

our fun the point of view of the blueprint

0.4 cm / 200 cm

the scale on a map or blueprint is usually normed to one unit on the blueprint :

0.4/200 × f/f = 1/(200×f)

0.4 × f = 1

f = 1/0.4 = 2.5

so, our scale is

(0.4 × 2.5) / (200 × 2.5) = 1 / 500

that means 1 cm on the blueprint corresponds to 500 cm or 5 m in reality.

4 0
2 years ago
Find the arc length of the partial circle.
Len [333]

Answer:

4.71

Step-by-step explanation:

Arc length = 2*pi*r-(pi*r)/2

Arc length = 3*2*(3.14)/4 = 4.71

6 0
3 years ago
Two cones are similar. The volume of the larger cone is 27 cm³ and the volume of the smaller cone is 8 cm³. The height of the sm
aev [14]
ANSWER

The height of the larger cone is 3cm

EXPLANATION

Since the two cones are similar we can use the scale factor to determine the height of the larger cone.

It was given that, the volume of the larger cone is 27 cm³ and the volume of the smaller cone is 8 cm³.


The scale factor for the volume is


{k}^{3}  =  \frac{27}{8}


The scale factor for the length is

k =  \sqrt[3]{ \frac{27}{8} }


k = \frac{3}{2}


To find the height of the larger cone, we multiply by

h = \frac{3}{2}  \times 2 = 3
7 0
3 years ago
Read 2 more answers
Melinda and Marcus each have a job. Melinda earns $12 an hour. She also receives a $75 weekly bonus.
Olenka [21]
According to given information,
Equation of Melinda Earning = 75 + 12x
Equation of Marcus Earning = 15x
Where, x = Number of hours they worked.

Now, we need to calculate when they will have same amount of money, so for that instance they shall equal to each other.
75 + 12x = 15x
15x - 12x = 75
3x = 75
x = 75/3
x = 25

After 25 hours, they will have the money = 15(25) = $375

So, your final answer is $375

Hope this helps!

8 0
3 years ago
Read 2 more answers
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