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3 years ago

Pls help for 40points!

Mathematics

2 answers:

Xelga [282]3 years ago

8 0

Answer:

calculate both either sides so the answer is 902

Step-by-step explanation:

multiply each side varible and subtract by 16

devlian [24]3 years ago

6 0

Answer:

V=31 ft cubed

Step-by-step explanation:

So Volume= length × width × height

V=5×5×1= 25ft cubed

V=2×3×1=6ft cubed

V=6+25

V=31 feet cubed

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Help help ASAP! Can someone help me with the answer!

Monica [59]

Answer:

-2x - 8

Step-by-step explanation:

Combine like terms

-5x - 7x = -2

Therfore you have

-2x - 8

5 0

3 years ago

A triangle has side lengths of 9 in, 13 in, and 20 in. What is the measurement of this triangle’s largest angle?

zvonat [6]

1. Given any triangle ABC with sides BC=a, AC=b and AB=c, the following are true :

i) the larger the angle, the larger the side in front of it, and the other way around as well. (Sine Law) Let a=20 in, then the largest angle is angle A.

ii) Given the measures of the sides of a triangle. Then the cosines of any of the angles can be found by the following formula:

$a^{2}=b ^{2}+c ^{2}-2bc(cosA)$

2.

$20^{2}=9 ^{2}+13 ^{2}-2*9*13(cosA)

400=81+169-234(cosA) 150=-234(cosA)

cosA=150/-234= -0.641$

3. m(A) = Arccos(-0.641)≈130°,

4. Remark: We calculate Arccos with a scientific calculator or computer software unless it is one of the well known values, ex Arccos(0.5)=60°, Arccos(-0.5)=120° etc

4 0

4 years ago

Read 2 more answers

Help me pls solve this

Serjik [45]

Answer:

1/8 (Decimal: 0.125)

Step-by-step explanation:

7 0

3 years ago

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Two triangles are similar with a scale factor of 3. The preimage triangle has a base of 7 inches and a height of 10 inches. What

vaieri [72.5K]

Answer:

The area of the larger triangle is 315 inches²

Step-by-step explanation:

1. Let's review all the information provided for answering the questions properly:

Pre-image triangle has a base of 7 inches and a height of 10 inches

Scale used : Factor of 3

2. What is the area of the larger triangle??

For calculating the area of the larger triangle, we use the scale this way:

Base = 7 inches * 3

21 inches

Height = 10 inches * 3

30 inches

Area of the larger triangle = 1/2 (Base * Height)

Area of the larger triangle = 1/2 (21 * 30)

Area of the larger triangle = 630/2 = 315 inches²

6 0

3 years ago

Please help me at this wit steps how did you did it

balu736 [363]

Answer:

5. LCM of 7 and 14: 14.

multiples of 7: 7, 14

multiples of 14: 14

LCM of 8 and 12: 24.

multiples of 8: 8, 16, 24

multiples of 12: 12, 24

Step-by-step explanation:

$.$

5 0

3 years ago