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pishuonlain [190]
2 years ago
12

Help Please!?

Mathematics
2 answers:
swat322 years ago
8 0
You can use sin cos or tan to solve this
lana [24]2 years ago
8 0

Answer: The value of x = 7 and the value of y = 7√2.

Step-by-step explanation:

Since we have given that

Let ABC is a right angled triangle , right angle at B.

AB = 7

BC = x

AC = y

∠ACB = 45°

We need to find the value of x and y:

As we know the "Trigonometric ratio":

\tan 45^\circ=\frac{AB}{BC}=\frac{7}{x}\\\\1=\frac{7}{x}\\\\x=7

Similarly,

\sin 45^\circ=\frac{AB}{AC}=\frac{7}{y}\\\\\frac{1}{\sqrt{2}}=\frac{7}{y}\\\\y=7\sqrt{2}

Hence, the value of x = 7 and the value of y = 7√2.

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Which inequality is represented in the number line below?-5-4-3-2-1 0 1 2 3 4 5OA.-7+2<22+3<4+2OB.-9≤-3x-6≤6OC.-6 ≤ x + 2
S_A_V [24]

The Solution:

The correct answer is [option B]

Given:

Required:

To determine the inequality represented by the given number line.

7 0
10 months ago
Find the length of MA<br> What is the area of triangle MNT?
tia_tia [17]
The length is 7 and there is no N
4 0
2 years ago
Read 2 more answers
From the start of a trail to the bird lookout point is 3 7/8 mile. From the bird lookout point to the end of the trail is anothe
Juli2301 [7.4K]

Answer:

Distance of the trail from the start to the end is 6\frac{17}{24} miles

Step-by-step explanation:

Distance from the start of a trail to the bird lookout point=3\frac{7}{8} miles

Distance from the bird lookout point to the end of the trail =2\frac{5}{6} miles

We want to find the difference of the trail from the start to the end, that is, how far is the starting point from the end point.

The distance between the start and end points

=3\frac{7}{8}+2\frac{5}{6}\\=\frac{31}{8} +\frac{17}{6}

=\frac{161}{24} =6\frac{17}{24} miles

3 0
2 years ago
In a statistics class there are 18 juniors and 10 seniors; 6 of the seniors are females and 12 of the juniors are males. If a st
Natasha_Volkova [10]

Answer:

P(a junior or a senior)=1

Step-by-step explanation:

The formula of the probability is given by:

P(A)=\frac{n(A)}{N}

Where P(A) is the probability of occurring an event A, n(A) is the number of favorable outcomes and N is the total number of outcomes.

In this case, N is the total number of the students of statistics class.

N=18+10=28

The probability of the union of two mutually exclusive events is given by:

P(AUB)=P(A)+P(B)

Therefore:

P(a junior or a senior) =P(a junior)+P(a senior)

Because a student is a junior or a senior, not both.

n(a junior)=18

n(a senior)=10

P(a junior)=18/28

P(a senior) = 10/28

P(a junior or a senior) = 18/28 + 10/28

Solving the sum of the fractions:

P(a junior or a senior) = 28/28 = 1

4 0
3 years ago
MATH HELP ME ASAP PLEASE
elena55 [62]

Answer:

53lbs.

Step-by-step explanation:

If Kevin bought 3 20lbs. Bags of gravel he would have 60 lbs. of gravel. In the end he has 7 lbs. of gravel left he used 53 pounds.

Equations:

7+x=60 or 60-7=53 lbs.

8 0
2 years ago
Read 2 more answers
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