All categories

3 years ago

Identify whether each phrase is an expression, equation, or inequality.

Mathematics

2 answers:

OverLord2011 [107]3 years ago

8 0

Answer:

swich the one attached to equation with the one attached to expression

Step-by-step explanation:

an equation need to have an equals sign, an expression doesnt.

Pavlova-9 [17]3 years ago

5 0

Answer:

Step-by-step explanation:

Equation= 8>h

Inequality= 10=d

Expression =7<em>f2</em>

You might be interested in

What is In 7 days, a group of workers can plant 21 acres. What is their rate in acres per day?

FromTheMoon [43]

So do 21/7 to give you how much they do in a day. The answer is three so they do 3 aceres in a day.

8 0

3 years ago

54=3q show work and step by step

MaRussiya [10]

Divide 54 by 3 which will get you q=18

7 0

3 years ago

Read 2 more answers

Find the function value. tan495°

inysia [295]

Answer: -1

Step-by-step explanation:

You want to find an angle that is coterminal to 495. So, subtract 360 degrees until youre in the range of 0-360. I got 495 - 360 = 135°

Tangent is equal to $\frac{sin(theta)}{cos(theta)}$ , we already solved theta which was 135°

This next part is hard to explain to someone who doesnt know their trig circle, idk if you do. The angle 135 is apart of the pi/4 gang. So we know this is going to be some variant of √2/2. Sine of quadrant 1 and 2 is gonna be positive:

$sin135=\frac{\sqrt{2} }{2}$

Now lets do cosine of 135°, which again is apart of the pi/4 gang because its divisible by 45°. Its in quadrant 2 so the cosine will be negative.

$cos135=-\frac{\sqrt{2} }{2}$

The final step is to divide them. They are both fractions so you should multiply by the reciprocal.

$\frac{\sqrt{2} }{2} *-\frac{2}{\sqrt{2} } =-\frac{2\sqrt{2} }{2\sqrt{2} } =-1$

7 0

3 years ago

Read 2 more answers

How many ml of a 20% acid mixture and a 80% acid mixture should be mixed to get 120ml of a 35% acid mixture?

shutvik [7]

Answer:

Volume of Mixture A =90 ml

Volume of Mixture B =30 ml

Step-by-step explanation:

Let say, Mixture A + Mixture B = Mixture C

Volume of Mixture A is x

Volume of Mixture B is y

So, Volume of Mixture C is x+y = 120 ml

Now, Acid contain in Mixture A is 20% =0.2x

Acid contain in Mixture B is 80% =0.8y

Also, Acid contain in Mixture C is 35% =(0.35)(x+y) = 0.35×120=42

Now, we know that,

Acid contain of Mixture A + Acid contain of Mixture B=Acid contain of Mixture C

∴ 0.2x+0.8y=42

∴ 2x+8y=420

We get two linear equations

2x+8y=420 and x+y = 120

Solving above equation...

∴ x=120-y

Replacing x value in 2x+8y=420

∴ 2(120-y)+8y=420

∴ 240-2y+8y=420

∴ 6y=180

∴ y=30

Replacing y value in any equation

∴ x=120-y=120-30=90

∴ x=90

Thus,

Volume of Mixture A is x=90 ml

Volume of Mixture B is y=30 ml

3 0

3 years ago

can someone help me immediately!! i’m not even joking i need ur help now. DO NOT GUESS OR LEAVE A LINK. correct answer gets brai

marusya05 [52]

Answer:

Step-by-step explanation:

. The liver regulates most chemical levels in the blood and excretes a product called bile. This helps carry away waste products from the liver. All the blood leaving the stomach and intestines passes through the liver.

5 0

3 years ago