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tatuchka [14]
3 years ago
13

Which one of these is a whole number? a. 4/7 b.square root of 8 c.0 d.0.1

Mathematics
2 answers:
alina1380 [7]3 years ago
5 0

Answer:

The answer is C. 0

castortr0y [4]3 years ago
3 0
The answer is C because whole numbers are numbers with nothing with them ex.8
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(a + 3)(a - 2) I need help answering this but don't know the answer. Can someone please help?
SVETLANKA909090 [29]

(a+3)(a-2)

(a² -2a +3a - 6) =0

(a² + a - 6 ) = 0

Use splitting the middle term

a² + 3a - 2a - 6 = 0

a(a+3) - 2(a+3) = 0

(a-2)(a+3) = 0

Values of a are

a - 2 = 0

a = 2 .....(i)

a+3 = 0

a = -3 .....(ii)

3 0
3 years ago
Crash testing is a highly expensive procedure to evaluate the ability of an automobile to withstand a serious accident. A simple
Veseljchak [2.6K]

Answer:

The 95% confidence interval is (-0.2451, 06912)

Step-by-step explanation:

From the question, we have;

The number of small cars in the sample of small cars, n₁ = 12

The number of small cars that were totaled, x = 8

The number of large cars in the sample of small cars, n₂ = 15

The number of large cars that were totaled, y = 5

Therefore, the proportion of small cars that were totaled, pX = x/n₁

∴ pX = 8/12 = 2/3

The proportion of large cars that were totaled, pY = y/n₁

∴ pY = 5/15 = 1/3

The 95% confidence interval for the difference pX - pY is given as follows;

pX-pY\pm z^{*}\sqrt{\dfrac{pX\left (1-pX  \right )}{n_{1}}+\dfrac{pY\left (1-pY  \right )}{n_{2}}}

\dfrac{2}{3} -\dfrac{1}{3} \pm 1.96 \times \sqrt{\dfrac{\dfrac{2}{3} \times \left (1-\dfrac{2}{3}   \right )}{12}+\dfrac{\dfrac{1}{3} \times \left (1-\dfrac{1}{3}   \right )}{15}}

Therefore, we have;

\therefore 95\% \  CI = \dfrac{1}{3} \pm 0.3578454

The 95% confidence interval, CI = (-0.2451, 06912)

6 0
2 years ago
5y^2-6y-11-6y^2+2y+5
shusha [124]

Answer:

-y² - 4y - 6

Step-by-step explanation:

Step 1: Write expression

5y² - 6y - 11 - 6y² + 2y + 5

Step 2: Combine like terms (y²)

-y² - 6y - 11 + 2y + 5

Step 3: Combine like terms (y)

-y² - 4y - 11 + 5

Step 4: Combine like terms (constants)

-y² - 4y - 6

6 0
3 years ago
How does soil begin to form?
Nonamiya [84]

Answer:  Rock particles clump together in aggregate

Step-by-step explanation:

Soil minerals form the basis of soil. They are produced from rocks (parent material) through the processes of weathering and natural erosion. Water, wind, temperature change, gravity, chemical interaction, living organisms and pressure differences all help break down parent material.

3 0
3 years ago
1. Which of the following number sentences is true?
Anastasy [175]

1.

D

2.

D

3.

A and D

4.

Didn't Understand

retype in comment and send

7 0
2 years ago
Read 2 more answers
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