All categories

3 years ago

Pls help question is on picture

Mathematics

2 answers:

Grace [21]3 years ago

7 0

The answer =25
we know a triangle equals 180 and that 130 is given
so i subtract 180-130=50
50 is the two angles together
but i want to know one
so i divided by 2
meaning “x” is 5
5 x 5 is 25
a is 25
hope this helps

NikAS [45]3 years ago

6 0

Answer:

25 degrees

Step-by-step explanation:

5 * 5 = 25

You might be interested in

The vertex angle of an isosceles triangle measures 40°. What is the measure of a base angle?

Katena32 [7]

A triangle has three angles, and their measures add up to 180 degrees.
An isosceles triangle has at least 2 congruent sides, and the angles opposite the congruent sides are congruent.

This triangle has one angle of 40 deg, and two angles that measure the same; call the measure of each base angle x.

x + x + 40 = 180

2x + 40 = 180

2x = 140

x = 70

The base angles measure 70 deg.

8 0

4 years ago

Read 2 more answers

the points (-2,1), (1,1), (0,-2), and (-3,-2) are vertices of a polygon. what type of polygon is formed by these points? A. rect

Fiesta28 [93]

Answer:

$\boxed{\sf D. \ Parallelogram}$

Step-by-step explanation:

When we graph the points, the polygon is a quadrilateral with opposite parallel sides. The type of polygon formed by these points is a parallelogram.

7 0

3 years ago

Read 2 more answers

(Drinking and driving.) Just after Eric had his last drink, the alcohol level in his bloodstream was 0.20 (milligram of alcohol

kykrilka [37]

Here's the formula for exponential decay:

$A = p(1-k)^t$

(where A = new amount, p = principal (starting) amount, k = rate of decay, and t = time)

Let's use what we know and fill in the expression.

$0.08 = 0.20(1-0.47)^t$

And now we solve for t.

$0.08 = 0.20(0.53)^t \\ 0.4 = 0.53^t \\ log0.4=t*log0.53 \\ t = \frac{log0.4}{log0.53} = \boxed{1.44\ hours}$

4 0

3 years ago

(8:2). 4+{[3-2).2-5].4 expresoa numerica

GaryK [48]

4+{[3-2).2-5].4

1st proceder a la multiplicación ==> 4+{(6-4) -5}4

2nd Quitar los paréntesis ==> 4+{2-5}4==> 4+{-3}4

3rd multiplicación: 4+{-12}

4th = - 8

3 0

3 years ago

Find the quotient. -300x5y4 ÷ xy2 -150 x6y6 -300 x6y6 300 x4y2 -300 x4y2

exis [7]

Answer:

d. -300 x4y2

Step-by-step explanation:

Here is the correct question: Find the quotient. -300x5y4 ÷ xy2

a. -150 x6y6

b. -300 x6y6

c. 300 x4y2

d. -300 x4y2.