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Natalka [10]
3 years ago
7

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

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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.
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4 years ago
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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.

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(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)

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0.08 = 0.20(1-0.47)^t

And now we solve for t.

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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

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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.

Given: -300x5y4 ÷ xy2

Now, simplifying it

Using law of indices to solve it.

= -300x^{5} y^{4} \div xy^{2}

we know, \frac{x^{m} }{x^{n} } = x^{m-n}

= -300x^{5-1} y^{4-2}

= -300x^{4} y^{2}

Hence, the answer is -300x^{4} y^{2}

6 0
3 years ago
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