All categories

4 years ago

Look at the figure. Find the value of x. 100 80 45 90

Mathematics

2 answers:

Nat2105 [25]4 years ago

7 0

Answer:

Option (d) is correct.

Measure of third angle is 90°

Step-by-step explanation:

Given : A triangle with measure of its two angle as 45°

We have to find the value of third angle x.

Consider the given triangle,

Using angle sum property of triangle

Sum of angles of a triangle is always 180°

Thus, 45° + 45° + x = 180°

90° + x = 180°

x = 180° - 90°

x = 90°

Thus, Measure of third angle is 90°

Mkey [24]4 years ago

5 0

The answer is 90°

The sum of all angle in a triangle is 180°

So,

180-(45+45)

= 180-90

= 90°

You might be interested in

WILL MARK BRAINLIEST

Burka [1]

Answer:

283.3%

Step-by-step explanation:

6.8 divided by 2.4 = 2.83333333333

2.8333 x 100 = 283.33

= 283.3%

5 0

3 years ago

Read 2 more answers

Problem PageQuestion Calcium levels in people are normally distributed with a mean of mg/dL and a standard deviation of mg/dL. I

SIZIF [17.4K]

Complete Question

The complete question is shown on the first uploaded image

Answer:

The calcium level that is the borderline between low calcium levels and those not considered low is $c = 8.68$

Step-by-step explanation:

From the question we are told that

The mean is $\mu = 9.5\ mg/dL$

The standard deviation $\sigma = 0.5 \ mg/dL$

The proportion of the population with low calcium level is $p =$ 5% = 0.05

Let X be a X random calcium level

Now the P(X < c) = 0.05

Here P denotes probability

c is population with calcium level at the borderline

Since the calcium level is normally distributed the z-value is evaluated as

$P(Z < \frac{c - \mu}{\sigma } ) = 0.05$

The critical value for 0.05 from the standard normal distribution table is

$t_{0.05} = -1.645$

=> $\frac{c - \mu}{\sigma } = -1.645$

substituting values

$\frac{c - 9.5}{0.5 } = -1.645$

=> $c - 9.5 = -0.8225$

=> $c = 8.68$

6 0

3 years ago

Could anyone tell me where these numbers would go? domain or range?

Free_Kalibri [48]

Independent, x-coordinate, input, domain.
Dependent, y-coordinate, output, range.

Domain: {0.5, 1, 4, 6, 8}
Range: {1, 1.5, 10, 12, 18}

8 0

3 years ago

PLZ HELP ASAP RN PLZ

Ronch [10]

I think it’s B i’m not sure though!

5 0

3 years ago

Replace * with a number in such a way that the trinomial could be written in the form a(x+b)^2 or a(x-b)^2.

weqwewe [10]

Answer:

a) 6
b) 3.125 or 25/8

Step-by-step explanation:

1.5x² + 6x + * =
1.5(x² + 4x + *) =
1.5(x² + 2*2x + 4) =
1.5(x + 2)²
* = 1.5*2² = 6

2x² - 5x + * =
2(x² - 2.5x + *) =
2(x² - 2*1.25x + 1.25²)=
2(x - 1.25)²
* = 2*(1.25)² = 3.125 or 25/8

6 0

3 years ago

Read 2 more answers