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3 years ago

12

Bonita said that the product of 56 × 123 is 73. How can you tell that her answer is wrong?

2 answers:

strojnjashka [21]3 years ago

6 0

Without doing any math, you know her answer is wrong.
1) Think of a smaller problem. 10 x 10 is 100, already bigger than what Bonita said. In her question, what was being multiplied together were both bigger than 10, so already we know Bonita's not right.
2) Think through what she said. 56 123's is something less than one of the numbers. How does that work? It doesn't.
Hope this helps!

Doss [256]3 years ago

4 0

She may have used a wrong operation to get this answer. 73 is not the correct answer, and you can prove it using a calculator or longhand. The correct answer is 6888.

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In triangle JKL, if m

romanna [79]

Answer:

$\angle L = 52\\\\\angle J = 45\\\\\angle K = 83$

Step-by-step explanation:

$\angle J = \angle L-7\\\\\angle K=2\angle L-21\\\\\angle L = \angle L$

we know that

$\angle K +\angle J + \angle L =180$ by the sum of interior angles of a triangle

so we have

$(\angle L -7)+(2\angle L -21)+(\angle L)=180$

we can simplify

$(\angle L + 2\angle L + \angle L)+(-7-21)=180\\\\4\angle L -28=180\\\\4\angle L=180+28\\\\4\angle L = 208\\\\\angle L = 52$

and now we find the other angles

$\angle J = \angle L -7\\\\=52-7\\\\=45$

$\angle K = 2\angle L -21\\\\=2(52)-21\\\\=104-21\\\\=83$

4 0

3 years ago

Using the net below, find the surface area of the triangular prism 5 cm 5 cm 4 cm 4 cm 3 cm 3 cm 3 cm 5 cm

MatroZZZ [7]

Answer:

54000

Step-by-step explanation:

use multiplication
do ur own work if you want to see if I'm wrong

7 0

2 years ago

Which is the area of triangle LMN? Group of answer choices 24 square units 27 square units 54 square units 48 square units

irina [24]

Answer:

√65/2 square units

Step-by-step explanation:

Find the diagram attached

Area of the triangle = 1/2 * base * height

To get the base and height, we will use the distance formula;

Area of the triangle LMN = 1/2 * LM * MN

For MN

Given the coordinate M(3, 2) and N(1, 3)

MN = √(3-2)²+(1-3)²

MN = √1²+(-2)²

MN = √1+4

MN = √5

For LM;

Given the coordinate L(1, -1) and M(3, 2)

LM = √(2-(-1))²+(3-1)²

LM = √(2+1)²+(2)²

LM = √3²+(2)²

LM = √9+4

LM = √13

Area of the triangle LMN = 1/2 * √13 * √5

Area of the triangle LMN = √65/2 square units

4 0

3 years ago

Find the perimeter of the rectangle

kvv77 [185]

Answer:

14

Step-by-step explanation:

5+5=10

2+2=4

and all together that equals 14

8 0

3 years ago

Please help me I would also like an explanation

Tasya [4]

Answer:

k = 45*

2k = 90*

Step-by-step explanation:

K will be the same as the 45* degrees, as it is across from it.

2k is twice k, which is 90*.

45* + 45* + 90* = 180*

Good luck!

4 0

3 years ago