1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
kumpel [21]
3 years ago
14

Help me please ;-;

Mathematics
2 answers:
antoniya [11.8K]3 years ago
8 0

Answer:

-14

Step-by-step explanation:

Alexeev081 [22]3 years ago
4 0

Answer:

C

Step-by-step explanation:

y=4x - 2                                  x= -3

y=4(-3) - 2

y= -12 - 2

y= -14

You might be interested in
Consider the expression below
brilliants [131]
This one is my real answer 5{10+3]=40 The other one you can use for extra this one 5{10+25]=35

4 0
3 years ago
Use a half-angle identity to find the exact value
Tatiana [17]

Given:

\cos 15^{\circ}

To find:

The exact value of cos 15°.

Solution:

$\cos 15^{\circ}=\cos\frac{ 30^{\circ}}{2}

Using half-angle identity:

$\cos \left(\frac{x}{2}\right)=\sqrt{\frac{1+\cos (x)}{2}}

$\cos \frac{30^{\circ}}{2}=\sqrt{\frac{1+\cos \left(30^{\circ}\right)}{2}}

Using the trigonometric identity: \cos \left(30^{\circ}\right)=\frac{\sqrt{3}}{2}

            $=\sqrt{\frac{1+\frac{\sqrt{3}}{2}}{2}}

Let us first solve the fraction in the numerator.

            $=\sqrt{\frac{\frac{2+\sqrt{3}}{2}}{2}}

Using fraction rule: \frac{\frac{a}{b} }{c}=\frac{a}{b \cdot c}

            $=\sqrt{\frac {2+\sqrt{3}}{4}}

Apply radical rule: \sqrt[n]{\frac{a}{b}}=\frac{\sqrt[n]{a}}{\sqrt[n]{b}}

           $=\frac{\sqrt{2+\sqrt{3}}}{\sqrt{4}}

Using \sqrt{4} =2:

           $=\frac{\sqrt{2+\sqrt{3}}}{2}

$\cos 15^\circ=\frac{\sqrt{2+\sqrt{3}}}{2}

5 0
3 years ago
If cheese is 4.40 per kilogram, what should I pay for 200 grams
N76 [4]
200 grams is is 0.2 kilograms, so you would pay $0.88 because 4.40x0.2=0.88
6 0
3 years ago
Read 2 more answers
⦁ To the nearest tenth, find the perimeter of ∆ABC with vertices A(2,4), B(-2,1) and C(2,1). Show your work.
Colt1911 [192]
We need the length of the sides.
AB=√(2-(-2))²+(4-1)²=√16+9=√25=5; BC=√4²+0=4; CA=√0+9=3. AB+BC+CA=5+4+3=12.
5 0
3 years ago
Item 14
dsp73

Answer:

13/21

Step-by-step explanation:

5 0
2 years ago
Other questions:
  • A teacher needs to choose seven students to hand out papers. The total number of ways he may choose the students can be found us
    10·2 answers
  • DVD cases are sold in packages of 20 padded mailing envelopes or so in packets of 12 what is the least number of cases and envel
    5·1 answer
  • A 20° sector in a circle has an area of 21.5π yd². What is the area of the circle? Use 3.14 for pi.
    7·2 answers
  • The housing market has recovered slowly from the economic crisis of 2008.​ Recently, in one large​ community, realtors randomly
    11·1 answer
  • Help please, i dont know i tried.
    10·2 answers
  • White shapes and black shapes are used in a game some are circles some are squares the ratio of white shapes to black shapes is5
    12·1 answer
  • Higher Order Thinking Some of the largest insects in the world include the Rhinoceros Beetle, the Giant Walking Stick, and the G
    14·1 answer
  • Do not understand Help!!!
    14·2 answers
  • I need help!!!!!!!!!!!!!!!!
    14·2 answers
  • The dot plot shows the ages of quiz show contestants. pg617069 Suppose a new data value, 30, is included in the dot plot. Which
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!