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koban [17]
2 years ago
12

What is the answer? 10 + (–4) =

Mathematics
2 answers:
Tanzania [10]2 years ago
6 0

Answer:

6

Step-by-step explanation:

because i just know it lol

Y_Kistochka [10]2 years ago
3 0

<u>answer</u>

6

<u>explanatio</u><u>n</u>

10+(–4)

  • When there is a + sign Infront of an expression with parentheses, the expression remains the same.

10–4

  • Subtract the numbers.

6

  • The answer is 6
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Dividing 5/937 long division
Temka [501]

Answer:

187.4

Step-by-step explanation:

7 0
3 years ago
ABCD ≅ FGHJ. Find the measure of the given angles or lengths of the given sides. CD = 2x + 3; HJ = 3x + 2.
xenn [34]
The question asks for the length of CD and HJ. To find those, we need to find a connection between them.

In the given statement, it says ABCD ≅ FGHJ. When we look at the equation, the corresponding letters are equal. For example, angle A is congruent to Angle F. Or BC ≅ GH.

So we know that CD and HJ are congruent.
Set them equal:
2x + 3 = 3x + 2
Subtract 2x from both sides:
3 = x + 2
Subtract 2 from both sides:
x = 3
If x is 3, plug it in:
3(3) + 2
Simplify:
9 + 2 = 11

So, HJ is 11. And because HJ ≅ CD, CD is 11 too.
3 0
2 years ago
The average length of a King Cobra is 118 inches, which is 22 inches longer than the black mamba. Write and solve an addition eq
TiliK225 [7]
I think it would be:

22 + x = 118 for your equation.

And then to solve, it would be:

22 + x = 118
-22 -22

x = 96

Average length of black mamba = 96 inches

However it is late where I am so my bad if that’s not what you needed
4 0
3 years ago
The electric cooperative needs to know the mean household usage of electricity by its non-commercial customers in kWh per day. A
Montano1993 [528]

Answer: (14.4, 17.2)

Step-by-step explanation: We are to construct a 98% confidence interval for mean household usage of electricity.

We have been given that

Sample size (n) = 872

Sample mean (x) = 15.8

Population standard deviation (σ) = 1.8

The formulae that defines the 98% confidence interval for mean is given below as

u = x + Zα/2 × σ/√n...... For the upper limit

u = x - Zα/2 × σ/√n...... For the lower limit

Zα/2 = critical value for a 2% level of significance in a two tailed test = 2.33

By substituting the parameters we have that

For upper tailed

u = 15.8 + 2.33 × (1.8/√872)

u = 15.8 + 2.33 (0.6096)

u = 15.8 + 1.4203

u = 17.2

For lower tailed

u = 15.8 - 2.33 × (1.8/√872)

u = 15.8 - 2.33 (0.6096)

u = 15.8 - 1.4203

u = 14.4

Hence the 98% confidence interval for population mean usage of electricity is (14.4kwh, 17.2kwh)

4 0
3 years ago
What is the slope of the line represented by the equation
marin [14]

Answer:

a). -1/2

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
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