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3 years ago

What is the greatest common factor of 28 and 49

Mathematics

1 answer:

Ann [662]3 years ago

4 0

Answer:

7 is the greatest comman factor of 28 and 49

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Wittaler [7]

Answer:

Step-by-step explanation:

x = the mom...y = joe

x = 3y - 2

x = 31

31 = 3y - 2

31 + 2 = 3y

33 = 3y

33/3 = y

11 = y <=== joe is 11

3 0

4 years ago

What is the value of the expression below when z=9z=9? z^2 +9z+10 z 2 +9z+10

Dmitrij [34]

Step-by-step explanation:

i hate my llllliiiiiiiiiiiiiffffffffffffeeeeeeeeeeeeee

6 0

3 years ago

The ratio of the measures of two complementary angles is 7:8. What is the measure of the smaller angle

patriot [66]

Answer: 42°

Step-by-step explanation:

Complimentary angles are angles sum up to make 90°

From the ratio given 7:8,

Add the ratios together and find the smaller angle as follows

7 + 8 = 15

Therefore,

⁷/₁₅ x 90 = 42°

The smaller angle is 42°

6 0

4 years ago

A jar contains 2 pink, 6 red, and 4 blue marbles. If you pick one marble without looking, what is the probability that the marbl

melamori03 [73]

Answer:

5/6

Step-by-step explanation:

2+6+4=12

6+4=10

10/12=5/6

4 0

4 years ago

A gallup survey indicated that 72% of 18- to 29-year-olds, if given choice, would prefer to start their own business rather than

Neko [114]

Answer:

The probability that no more than 70% would prefer to start their own business is 0.1423.

Step-by-step explanation:

We are given that a Gallup survey indicated that 72% of 18- to 29-year-olds, if given choice, would prefer to start their own business rather than work for someone else.

Let $\hat p$ = sample proportion of people who prefer to start their own business

The z-score probability distribution for the sample proportion is given by;

Z = $\frac{\hat p-p}{\sqrt{\frac{\hat p(1-\hat p)}{n} } }$ ~ N(0,1)

where, p = population proportion who would prefer to start their own business = 72%

n = sample of 18-29 year-olds = 600

Now, the probability that no more than 70% would prefer to start their own business is given by = P( $\hat p$ $\leq$ 70%)

P( $\hat p$ $\leq$ 70%) = P( $\frac{\hat p-p}{\sqrt{\frac{\hat p(1-\hat p)}{n} } }$ $\leq$ $\frac{0.70-0.72}{\sqrt{\frac{0.70(1-0.70)}{600} } }$ ) = P(Z $\leq$ -1.07) = 1 - P(Z < 1.07)

= 1 - 0.8577 = 0.1423

The above probability is calculated by looking at the value of x = 1.07 in the z table which has an area of 0.8577.

3 0

3 years ago