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ehidna [41]
3 years ago
11

NEED HELP WITH THIS PLEASE

Mathematics
2 answers:
frosja888 [35]3 years ago
8 0

Answer:

75

Step-by-step explanation:

-25+25=0+50=50

25+50=75

marin [14]3 years ago
7 0

Answer:

-25 + 75 = 50

Step-by-step explanation:

Since we don't know the value of the bar, we will call it x.

-25 + x = 50

Add 25 to both sides to find the value of x.

x = 75

You can also double check this answer by doing simple math.

-25 + 75 = 50

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Determine the margin of error in estimating the population mean, μ . A sample of 74 college students yields a mean annual income
Julli [10]

Answer:

$253

Step-by-step explanation:

Margin of error is the critical value times the standard error.

MoE = z × σ/√n

At 99% confidence, z = 2.576.

MoE = 2.576 × 844/√74

MoE = 253

7 0
4 years ago
What is the answer? pls help<br> i'm not sure
Sonbull [250]

Answer:

I don't think It is a line.

Step-by-step explanation:

6 0
3 years ago
The area of a triangular flag is 132 square centimetres. Its altitude is 2 centimetres longer than twice its base. Find the leng
Anika [276]

Answer:

24 cm and 11 cm

Step-by-step explanation:

GIVEN: The area of a triangular flag is 132 \text{ cm}^2. Its altitude is 2\text{ cm} longer than twice its base.

TO FIND: lengths of the altitude and the base.

SOLUTION:

Let the altitude and the base of flag be a and b

According to the question

a=2+2b

area of triangle =\frac{1}{2}\times base \times alltitude=\frac{1}{2}a\times b

\implies \frac{1}{2}(2b+2)b=132 \Rightarrow 2b^2+2b-264

Solving equation we get

b=11   then a=24

Hence the lengths of altitude and base of triangular flag is 24 cm and 11 cm respectively.

8 0
3 years ago
Multiple Choice<br> Evaluate.<br> 1. -59 - 6 for g=-2 (1 point)<br> A.4<br> B.16<br> C.10<br> D.-13
Sergeeva-Olga [200]
Answer: A. 4

Im in high school this is simple math so. Your welcome
4 0
4 years ago
Read 2 more answers
7) y is inversely proportional to the square root of (x + 1).
Virty [35]
Mark Brainliest please

Answer y= 16/99

Explanation:
the initial statement is
y ∝ 1/x

To convert to an equation multiply by k the constant of variation
⇒ y = k × 1/x = k/x
To find k use the given condition y = 15 when x = 5

y = k/ x

⇒ k = y*x = 8 * 2 =16

equation is
¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯

y = 16/ x

when
x = 99
then

y = 16/99

Y = 16/99
3 0
3 years ago
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