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3 years ago

Please I need help ???????

Mathematics

2 answers:

Trava [24]3 years ago

4 0

Answer:

Step-by-step explanation:

the triangles are congruent, so we know that 2x + 10 = 3x + 1

using basic algebra we find that x is equal to 9

to find angle q, just plug the x value, 9, to 3x + 1, which gives us 3 × 9 + 1, or 28

Hope this helps! :)

grandymaker [24]3 years ago

3 0

Answer:

Step-by-step explanation:

2x+10=3x+1

-1 from both sides

2x+9=3x

-2x from both sides

9=1x

divide both sides by 9

x=9

then plug in 9 for X and you with get 28

hope this helps

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Find the area of the figure. Round to the nearest tenth if necessary.

Anestetic [448]

So I went ahead and divided up the figure so that you would understand what I'm going to tell you. Let's start with the red rectangle.

The distance from point R to point I is 6 units and the distance from Point R to point S is 5 units. 6*5 = 30 so that red rectangle has an area of 30 units

Now let's calculate triangle AVI. Area of a triangle is Base * Height. The base is 1 and the height is 5 which means the area of triangle AVI is 5.

Next, triangle ALT. From Point A to point L is 4 unit. From Point L to point T is 3 units. 4*3 is 12. So triangle ALT has an area of 12.

Triangle TSI. From Point T to point L is 3 units. From Point L to X is 2. Triangle TSI has an area of 6.

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4 years ago

1/2 mile in 1/26 hour

aleksandr82 [10.1K]

Answer:

1 hour = 13 miles

Step-by-step explanation:

For every 1/26 hours, you travel 1/2 miles

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Well, let's find out!:

1/26 hours = 1/2 miles

1 hour = 1/2 ÷ 1/26

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Hope this solves your question! :)

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3 years ago

Lena found a 5/8

DENIUS [597]

Answer:

Naomi had the correct measurement the ring weighed 0.625 carats

Step-by-step explanation:

* The diamond ring weighed 5/8 carats

- To know who is right lets change the fraction 5/8 to a decimal number

∵ 5/8 means 5 ÷ 8

- 5 is smaller than 8 so we will multiply it by 10 and

insert decimal point in the quotient (answer of division)

∴ It will be 50 ÷ 8 = 6 and remainder 2/8 ⇒ 1/4

∴ The quotient = 0.6 and remainder 1/4

- 1 is smaller than 4 so we will multiply it by 10

∴ It will be 10 ÷ 4 = 2 and remainder 2/4 ⇒ 1/2

∴ The quotient = 0.62 and remainder 1/2

- 1 is smaller than 2 so we will multiply it by 10

∴ It will be 10 ÷ 2 = 5 without remainder

∴ The quotient = 0.625

* Naomi had the correct measurement the ring weighed 0.625 carats

8 0

3 years ago

Read 2 more answers

Help me solve this problem and explain to me please

Natalka [10]

The answer would be 3 and 2. Complementary means when you add two angles together, they equal 90° or a right angle.

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3 years ago

A study was conducted to investigate the relationship between maternal smoking during pregnancy and the presence of congenital m

Pachacha [2.7K]

Answer:

a) In the explanation.

b) P=0.09714

c) P=0.0866

d) p=0.208

Step-by-step explanation:

a) The sampling distribution will have this properties:

1 - The sampling distribution of a proportion is equal to the binomial distribution.

2 - The mean of the sampling distribution will be equal to the proportion of the population (0.328).

$\mu=\pi=0.328$

3 - The standard deviation will be equal to the square root of the product of the proportion and its complementary, divided by the sample size.

$\sigma_s=\sqrt{\pi(1-\pi)/n}=\sqrt{0.328*(1-0.328)/25}=0.094$

B) The fraction with sample proportion of 0.45 or higher is

$z=(p-\pi)/\sigma=(0.45-0.328)/0.094=1.298\\\\P(p\geq0.45)=P(z\geq 1.298)=0.09714$

C) The fraction with sample proportion of 0.20 or lower is

$z=(p-\pi)/\sigma=(0.2-0.328)/0.094=-1.362\\\\P(p\leq0.2)=P(z\geq -1.362)=0.0866$

D) The value of p that cuts off the lower 10% of the distribution corresponds to z=-1.28.

Then we have

$z=(p-\pi)/\sigma\\\\p=\pi+z\sigma=0.328+(-1.28)*0.094=0.328-0.120=0.208$

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3 years ago