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ella [17]
2 years ago
8

HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Mathematics
1 answer:
Radda [10]2 years ago
6 0
This is what the diagram is saying
(-4)+(-9)= -13
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-2(x+2)=-1 ???????????????????
Salsk061 [2.6K]

Answer:

X=-3/2

Step-by-step explanation:

-2(x+2)=-1

Distribute

-2*x and -2*2

-2x-4=-1

Solve for x

-2x-4=-1

    +4   +4

-2x=3

/-2  /-2

x=-3/2

3 0
3 years ago
If r=10 and s=31, find R. Round to the nearest tenth.
mars1129 [50]

Answer:

C. R = 17.9 degrees

Step-by-step explanation:

We have a rectangle triangle with the adjacent side and the opposite side (neither of which are the hypotenuse).

The relation between those elements is the tangent:

tan(angle) = \frac{Opposite side}{Adjacent side}

So, to isolate the angle, we modify the formula as such:

angle = arctan(\frac{Opposite side}{Adjacent side}) = arctan(\frac{10}{31}) = arctan(0.3225) = 17.87

If we round 17.87 degrees to the tenth... we get 17.9 degrees.

5 0
3 years ago
Read 2 more answers
Find the volume of this sphere. Round to the nearest tenth.<br><br>plz help me!!!​
raketka [301]

Answer:

523.6 cm^3

Step-by-step explanation:

We know the diameter is 10. The radius is half the diameter, so 10/2=5.

Knowing the radius is 5, we just need to plug it into the formula.

Volume=(4/3)pi5^3

≈523.6

Answer:523.6 cm^3

3 0
3 years ago
Round 4.392 to the nearest tenth​
Allisa [31]

Answer:4.4

Step-by-step explanation:

The tenths place is  the first number after the decimal  which is the number 3 the hunderds place will tell you if your going to round up if the number is above 5 the tens goes up one so since the next number is 9 so the 3 becomes a 4.

6 0
3 years ago
Read 2 more answers
A group of student has 20 Male and 10 females what is the ratio of female-to-male ​
Nitella [24]

Answer:

The ratio of female-to-male is 1:2

Step-by-step explanation:

There are 10 female students and 20 male students. If we were to divide each number by 10, we would get 1 and 2, respectively. That means for every 1 female student, there are 2 male students. The ratio would then be 1:2.

7 0
3 years ago
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