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2 years ago

I needddddddd helppppppp.

Mathematics

1 answer:

Setler [38]2 years ago

4 0

Answer:

129

Step-by-step explanation:

34+17 = 51

180 - 51 = 129

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Use the following model.

kaheart [24]

Answer:
B.4
Step-by-step explanation:
the base is the bottom and on the bottom are what looks to be 4 bases

Hope this helps have a nice day

8 0

3 years ago

Read 2 more answers

Plz..... Solve this questions for me...

faust18 [17]

$6.\\\text{We know}\ 9=3^2.\ \text{Therefore}\\\\9^2=(3^2)^2\\\\\text{use}\ (a^n)^m=a^{nm}\\\\9^2=(3^2)^2=3^{2\cdot2}=3^4\\\\\boxed{3^4=9^2}\\=================$

$7.\\METHOD\ 1:\\\\\sqrt{7^4}=\sqrt{7^{2\cdot2}}\\\\\text{use}\ (a^n)^m=a^{nm}\\\\=\sqrt{(7^2)^2}\\\\\text{use}\ \sqrt{a^2}=a\ \text{for}\ a\geq0\\\\=\boxed{7^2}\\\\METHOD\ 2:\\\\\text{use}\ a^\frac{m}{n}=\sqrt[n]{a^m}\\\\\sqrt{7^4}=7^\frac{4}{2}=\boxed{7^2}\\=================$

$8.\\5^a\times5^b=5^{11}\\\\a)\\\text{use}\ a^n\times a^m=a^{n+m}\\\\5^a\times5^b=5^{a+b}\\\\5^{a+b}=5^{11}\Rightarrow a+b=11\\\\11\ \text{is odd. The sum of even and odd is odd. Therefore}\ a\ \text{and}\ b\ \text{can't be even.}\\--------------------\\\\b)\\5\ \text{solutions}\\\\11=5+6\\11=4+7\\11=3+8\\11=2+9\\11=1+10$

3 0

2 years ago

A sign is 4 1/2 feet wide and 5 1/4 feet long . Find the area of the surface of the sign.

ZanzabumX [31]

Answer: 94.5

Step-by-step explanation:

9/2 × 21/4

Get common denominator

9 × 2 =18

2 × 2 = 4

18/4 × 21/4

21 × 18 = 378

378/4 = 94.5

7 0

3 years ago

Teachers are being trained to standardized the scores they give to students' essays. The same essay was scored by 10 different t

bagirrra123 [75]

What are you asking , if you tell me i will solve

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3 years ago

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What is he least common multiple of 5 and 6

jeyben [28]

Answer:

30.

Step-by-step explanation:

6 = 2 * 3

5 = 5

LCM = 2 * 3 * 5 = 30.

7 0

3 years ago