x2 + 4x -2 = -1
can someone solve this for me please
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Step-by-step explanation:

complementary angles sum up to 90

[tex]x + y = 90[/tex]

[tex]45 + 45 = 90[/tex]

[tex]x = 45 \\ y = 45[/tex]

Answer:

x = 60

Step-by-step explanation:

Because the triangle looks like an equalateral triangle meaning all sides and angles are congruent

So triangle equals 180 degrees and 60 times 3 equals 180

Step-by-step explanation:

x + x + x = 180° ( sum of interior angle of triangle is 180°)

3x = 180°

x = 180° / 3

x = 60°

Answer:

Below

Step-by-step explanation:

0.3>0.25

0.35<0.4

0.05<0.1

Answer:

10/8

Step-by-step explanation:

[tex]2 \times \frac{5}{8} \\ \\ = \frac{2 \times 5}{8} \\ \\ = \frac{10}{8} [/tex]

Answer: A

Step-by-step explanation:

365/10 is the best way to figure it out

Answer:

A. 365÷10 = 365/10 = 36 5/10=36 1/2 pages

Explanation:

Here:

Rate:

365 ÷ 10 = 365/10 = 36 1/2 pages per day

Answer:

0.77777777777 or simplified to 0.8

Step-by-step explanation:

Step-by-step explanation:

The ratio's can be expressed as fractions and you may compare those.

In order to compare fractions you need to bring them into equal denominator.

8 and 9 have LCM of 8*9 = 72 since they have no common factors.

The equivalent fractions with common denominator are:

Now we can compare the fractions:

Answer:  [tex]\bold{x=\frac{2 \sqrt{10}}{7}}[/tex]

Step-by-step explanation:

[tex]\text { Let } p=\left(x,-\frac{3}{7}\right) \text { as given } y \text {-coordinate is }=-\frac{3}{7}[/tex]

[tex]r=1 \ \ \text{(as $p$ is on unit circle)} \\$$\therefore x^{2}+y^{2}=1^{2}[/tex]

[tex]\begin{aligned}&\Rightarrow x^{2}+\left(-\frac{3}{7}\right)^{2}=1 \Rightarrow x^{2}=1-\frac{9}{49}=\frac{40}{49} \\&\Rightarrow x^{2}=\pm \sqrt{\frac{40}{49}} \Rightarrow x=\pm \frac{2 \sqrt{10}}{7}\end{aligned}[/tex]

[tex]$$Since the point is in quadrant $4$ $\therefore \text{the} \ x$-coordinate will be positive$$\therefore x=\frac{2 \sqrt{10}}{7} \text$$[/tex]

Answer:

8 cm

Explanation:

A = 1/2 × b × h.

28 = 1/2*b*7

56=7b

8=b

Answer:

C

Step-by-step explanation:

Answer: 90°

Step-by-step explanation:

(x°+90°)=180°(being the sum of angles of the triangle)

or, x°= 180°-90°

or x°= 90°

Answer:

If I am understanding the question correctly, every 6 feet in real life will be equivalent to 1 inch "on paper", or in the blueprint. Using dimensional analysis, which is a methodology for converting from one unit to another, we have:

18 feet * 1 inch / 6 feet = 3 inches

On the other axis,

24 feet * 1 inch / 6 feet = 4 inches

Therefore, the blueprint for this 18x24 foot room, with a scale of 6 feet:1inch, should be 3x4 inches.

1. x = 10 is correct

2. not sure

3. x = 7 is correct

4. not sure

Answer:

9.42 feet more

Step-by-step explanation:

the outer circle is 53.42 feet

hope this helps :)

Answer:

x = -5

Step-by-step explanation:

Given:

[tex]\displaystyle \large{8x-5=5(x-4)}[/tex]

Distribute 5(x-4):

[tex]\displaystyle \large{8x-5=5x-20}[/tex]

Add both sides by 5:

[tex]\displaystyle \large{8x-5+5=5x-20+5}\\\displaystyle \large{8x=5x-15}[/tex]

Subtract both sides by 5x:

[tex]\displaystyle \large{8x-5x=5x-15-5x}\\\displaystyle \large{3x=-15}[/tex]

Divide both sides by 3:

[tex]\displaystyle \large{\dfrac{3x}{3}=\dfrac{-15}{3}}\\\displaystyle \large{x=-5}[/tex]

Therefore, your solution is x = -5

Answer:

x = -5

Step-by-step explanation:

Distributing the value in the RHS

Equating to the RHS

Bring x terms to the left and numbers to the right.

Divide both sides by 3.

Answer: 4 committees

Hope this helps! :)

I need brainliest please.

p = root under (h square - b square)

Answer:

the original price should be 3.70 beacause ur basically subtracting That's all

Answer: You Multiply

Step-by-step explanation:

Answer:

8 did not get an A

Step-by-step explanation:

75%  obtained an A , then

25% did not obtain an A

25% of 32

= [tex]\frac{25}{100}[/tex] × 32

= 0.25 × 32

= 8

Answer:

C

Step-by-step explanation:

2√3 / √6                            Multiply top and bottom by √6

(2√3 * √6) / (√6  √6  )       Combine left factors

(2 √18) / (√6  √6  )             (√6  √6  )  = 6

(3 √18) / 6                            Factor 18

(3 √2 * 3 * 3                         Take one 3 outside the brackets. Discard the other three.

3*3 *2√2/6                              Divide top and bottom by 6

Answer: 3  √2

Answer:

Step-by-step explanation:

A. square root of 2, Took it on edg. and passed.

Answer: 55

Step-by-step explanation:

Angle VWX and the 55 degree angle are vertical angles.

Answer:

B

Step-by-step explanation:

four times as much;

Because the p-value is less than 0.05, the mean fitness scores for the two groups of students are significantly different

========================================================

Explanation:

Use a T calculator to find that P(T > 2.63) = 0.00459 approximately when we have 209 degrees of freedom.

Double this to get 2*0.00459 = 0.00918 and this is the approximate p-value

Since the p-value is less than alpha = 0.05, this means we reject the null and conclude that the two population means are significantly different.

Answer:

To represent all the possible amounts that Samantha can pay, you will write that x is less than or equal to 15.

This means that any amount up to and including 15 is a possibility.

Step-by-step explanation:

Answer:

x≤15

Step-by-step explanation:

x means how much samantha is able to spend on lunch each week. she can spend only 15 dollars or less. -Crispin

Answer:

Based on this equation, we estimate a team that scores 222 goals per match to have 24.524. 524, point, 5 wins.

Answer:

728

Step-by-step explanation:

(9x3)^2-4^0

First solve in parenthesis,

Then solve exponents.

27^2 - 4^0

729 - 1

728

Answer:

92

Step-by-step explanation:

2 × 34 + 72 ÷ 3

(2 × 34) + (72 ÷ 3)

68 + 24 = 92

I hope this helps!

Answer:

The answer would be [tex]\leq[/tex] :)

Step-by-step explanation:

The equation would look like this :)

1.5x + 32 [tex]\leq[/tex] 62

Have an amazing day!!

Please rate and mark brainliest!!