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zimovet [89]
3 years ago
15

What constructions give you 90 degrees?

Mathematics
1 answer:
mr_godi [17]3 years ago
8 0

Answer:

Squares

Step-by-step explanation:

Rectangles

right triangles

any shape with right angles

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Geometry, Multiple choice. Answer all if possible. Ty
Eddi Din [679]

Question 2: The answer is A. 90, 45, 45 because one angle is a right angle which is always 90 degrees and the two remaining angles are the same. Also, all triangles have to have a total amount of 180 degrees when all angle-degree-measurements are combined, which leaves A as the only possible answer.

Question 3: The answer is D. To solve this question you simply multiply all the dimensions of the triangular prism together. That would be:                                 10 x 14 x 8 = 1,120 in squared

Question 4: Sorry, didn't get this one :(

Question 5: The answer is B. 4pi. Sorry, don't have a good explanation for this one, but I'm pretty sure it is correct.

Question 6: Can't see the question, so I can't help you :(

Question 7: The answer is A. 5 feet. Using the power of elimination you can conclude that the three other options to the answer are improbable.

Question 8: The answer is B. 180 - x. To get this you need to know that 180 degrees is a flat line angle. Since angle x and angle y stem from the same two flat lines intersecting diagonally, you can determine the 180 - angle x would equal angle y.

8 0
3 years ago
\frac{1}{5}k-9=\frac{3}{5}k-7
Oksi-84 [34.3K]

let start by multiplying both sides by the LCD of all denominators, in this case that'd be 5, to do away with the denominators.


\bf \cfrac{1}{5}k-9=\cfrac{3}{5}k-7\implies \stackrel{\textit{multiplying by }\stackrel{LCD}{5}}{5\left( \cfrac{1}{5}k-9 \right)=5\left( \cfrac{3}{5}k-7 \right)}\implies k-45=3k-35 \\\\\\ -45=2k-35\implies -10=2k\implies \cfrac{-10}{2}=k\implies -5=k

6 0
3 years ago
Describe fully the single transformation that maps triangle A onto triangle B. please help ASAP​
kupik [55]
Hi how you doing? “Be safe”
5 0
3 years ago
A charity raises $25,200 which is 315% of their original goal. What was their original goal amount?
Gnoma [55]

Answer:

For you it would be 8,000

Step-by-step explanation:

Divide your progress toward your goal by your goal. In the first example, divide 9 by 30 get 0.3. In the second example, divide $440 by $1,000

your welcome:)

6 0
3 years ago
Please help me fast.
vovangra [49]

Answer:

all of 'em are exponential functions.

7 0
3 years ago
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