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andreev551 [17]
4 years ago
9

Need some answer please

Mathematics
1 answer:
EastWind [94]4 years ago
8 0

Answer:

1st box is 6

2nd box is 16

3rd box is 24

last box is 40.

Step-by-step explanation:

Mark me brainliest if I helped:D

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Diện tích xung quanh của hình chóp tứ giác đều có cạnh bằng 6cm và độ dài trung đoạn bằng 10cm là:
Serggg [28]

Answer:

A

Step-by-step explanation:

(6.2).10=120cm²

Đáp án đó chúc bạn học tốt

5 0
3 years ago
For the point P(2,-14) and Q(9,-9) find the distance d(P,Q) and the coordinates of the midpoint M of the segment PQ
marin [14]

Answer:

Step-by-step explanation:

Distance : \sqrt{(x2-x1)^2 + (y2 - y1)^2} = \sqrt{(9-2)^2 + (-9+14)^2}= \sqrt{49 + 25} = \sqrt{74}

Midpoint :

x (m) = (2+9)/2 = 11/2

y (m) = (-14-9)/2 = -23/2

M (11/2, -23/2)

5 0
3 years ago
In the figure below, if a = 4 and b = 20, then c is approximately 19.45. true or false
asambeis [7]
False. To find C, we can use the equation:

a^2 + b^2 = c^2

4^2 + 20^2 = c^2

c^2 = 416

c = approximately 20.40
4 0
4 years ago
Name the postulate or theorem you can use to prove the triangles congruent.
Maru [420]

Answer:

You can use the ASA Postulate to prove the Angle-Angle-Side Congruence Theorem. A flow proof is shown below. If two angles and a nonincluded side of one triangle are congruent to two angles and the corresponding nonincluded side of another triangle, then the triangles are congruent.

Step-by-step explanation:

Hope it helps! Correct me if I am wrong!

I'm sure about my answer!

If you dont mind can you please mark me as brainlest?

Its ok if you don't want to!

3 0
3 years ago
Which of the following equations describes the line shown below? Check all
nexus9112 [7]

Answer:

C and D

Step-by-step explanation:

The equation of a line in point- slope form is

y - b = m(x - a)

where m is the slope and (a, b) a point on the line

Calculate m using the slope formula

m = \frac{y_{2}-y_{1}  }{x_{2}-x_{1}  }

with (x₁, y₁ ) = (- 3, - 6) and (x₂, y₂ ) = (9, 3) ← 2 points on the line

m = \frac{3+6}{9+3} = \frac{9}{12} = \frac{3}{4}

Using (a, b ) = (9, 3 ) , then

y - 3 = \frac{3}{4} (x - 9) → C

Using (a, b ) = (- 3, - 6 ), then

y - (- 6) = \frac{3}{4} (x - (- 3) ) , that is

y + 6 = \frac{3}{4} (x + 3) → D

4 0
3 years ago
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