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3 years ago

Is y - 9 = 14; y = 22 a solution or a equation?

Mathematics

1 answer:

mojhsa [17]3 years ago

3 0

y - 9 = 14 is not a solution; rather, it's an equation which you are to solve for y.

Adding 9 to both sides of this equation, we get y = 23. y=22 is not a solution.

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What is the measurement of Angle BCA?

miv72 [106K]

Answer:

70°

Step-by-step explanation:

Since ∠BCA is supplementary with the 110° angle shown on the other side, ∠BCA = 180° (The measurement of a straight line) - 110° = 70°.

~Hope this helps!~

6 0

3 years ago

What is the length of the unknown leg

likoan [24]

Answer:

6 mm

Step-by-step explanation:

Use the Pythagorean Theorem to solve for the unknown leg

$a^{2} +b^{2}=c^{2}$

Since we need to solve for a, we will manipulate the equation in terms of b and c → $a=\sqrt{c^{2}-b^{2} }$

Here, b = 7 mm and c = $\sqrt{85}$ mm

Plugging these numbers into our equation gives us $a=\sqrt{(\sqrt{85})^{2} -(7)^{2} }$ → $\sqrt{85-49}$ = $\sqrt{36}$ = 6 mm

6 0

3 years ago

The complement of 10 percent is 90 percent or in decimal .90.

jonny [76]

What is the question?

5 0

4 years ago

Respuesta de (-0.5)²

Vladimir79 [104]

Answer:

0.25

Step-by-step explanation:

we have

$(-0.5)^2$

we know that

$-0.5=-\frac{1}{2}$

substitute

$(-\frac{1}{2})^2=(-\frac{1}{2})(-\frac{1}{2})$

Remember that

$(-1)(-1)=1\\(-1)(1)=(-1)$

$(-\frac{1}{2})(-\frac{1}{2})=\frac{1}{4}=0.25$

5 0

3 years ago

Compared to a model of 9/12 , a model of 3/4 will show -------------(A)3 Times as many B)1/3 times as many D)The same number of)

aleksandrvk [35]

9514 1404 393

Answer:

B, B

Step-by-step explanation:

A model of 9/12 will have 12 parts, 9 of which are shaded.

A model of 3/4 will have 4 parts (1/3 as many), 3 of which are shaded. Each part of this model will correspond to 3 parts of the 9/12 model. Hence, each part is 3 times the size of a part in the 9/12 model.

B) 1/3 times as many

B) 3 times the size

4 0

3 years ago